diff --git a/src/main/java/com/kingsrook/qqq/backend/core/actions/DeleteAction.java b/src/main/java/com/kingsrook/qqq/backend/core/actions/DeleteAction.java
index ccf10cd4..5a20304e 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/actions/DeleteAction.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/actions/DeleteAction.java
@@ -10,6 +10,7 @@ import com.kingsrook.qqq.backend.core.modules.interfaces.QModuleInterface;
 
 
 /*******************************************************************************
+ ** Action to delete 1 or more records.
  **
  *******************************************************************************/
 public class DeleteAction
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/actions/InsertAction.java b/src/main/java/com/kingsrook/qqq/backend/core/actions/InsertAction.java
index c4b7eefb..28477a99 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/actions/InsertAction.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/actions/InsertAction.java
@@ -10,6 +10,7 @@ import com.kingsrook.qqq.backend.core.modules.interfaces.QModuleInterface;
 
 
 /*******************************************************************************
+ ** Action to insert one or more records.
  **
  *******************************************************************************/
 public class InsertAction
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/actions/MetaDataAction.java b/src/main/java/com/kingsrook/qqq/backend/core/actions/MetaDataAction.java
index f0071d8f..86d81543 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/actions/MetaDataAction.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/actions/MetaDataAction.java
@@ -11,6 +11,7 @@ import com.kingsrook.qqq.backend.core.model.metadata.frontend.QFrontendTableMeta
 
 
 /*******************************************************************************
+ ** Action to fetch top-level meta-data in a qqq instance.
  **
  *******************************************************************************/
 public class MetaDataAction
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/actions/QueryAction.java b/src/main/java/com/kingsrook/qqq/backend/core/actions/QueryAction.java
index 3a39f101..6afd70bf 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/actions/QueryAction.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/actions/QueryAction.java
@@ -10,6 +10,7 @@ import com.kingsrook.qqq.backend.core.modules.interfaces.QModuleInterface;
 
 
 /*******************************************************************************
+ ** Action to run a query against a table.
  **
  *******************************************************************************/
 public class QueryAction
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/actions/TableMetaDataAction.java b/src/main/java/com/kingsrook/qqq/backend/core/actions/TableMetaDataAction.java
index 88aa7594..36890307 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/actions/TableMetaDataAction.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/actions/TableMetaDataAction.java
@@ -10,6 +10,7 @@ import com.kingsrook.qqq.backend.core.model.metadata.frontend.QFrontendTableMeta
 
 
 /*******************************************************************************
+ ** Action to fetch meta-data for a table.
  **
  *******************************************************************************/
 public class TableMetaDataAction
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/adapters/CsvToQRecordAdapter.java b/src/main/java/com/kingsrook/qqq/backend/core/adapters/CsvToQRecordAdapter.java
index 1e30f980..912342d1 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/adapters/CsvToQRecordAdapter.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/adapters/CsvToQRecordAdapter.java
@@ -18,13 +18,17 @@ import org.apache.commons.csv.CSVRecord;
 
 
 /*******************************************************************************
+ ** Adapter class to convert a CSV string into a list of QRecords.
  **
  *******************************************************************************/
 public class CsvToQRecordAdapter
 {
 
    /*******************************************************************************
-    ** todo - meta-data validation, mapping, type handling
+    ** convert a CSV String into a List of QRecords, for a given table, optionally
+    ** using a given mapping.
+    **
+    ** todo - meta-data validation, type handling
     *******************************************************************************/
    public List<QRecord> buildRecordsFromCsv(String csv, QTableMetaData table, AbstractQFieldMapping<?> mapping)
    {
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/adapters/JsonToQFieldMappingAdapter.java b/src/main/java/com/kingsrook/qqq/backend/core/adapters/JsonToQFieldMappingAdapter.java
index eb922b84..daed1a6c 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/adapters/JsonToQFieldMappingAdapter.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/adapters/JsonToQFieldMappingAdapter.java
@@ -11,12 +11,17 @@ import org.json.JSONObject;
 
 
 /*******************************************************************************
+ ** Adapter class to convert a JSON string into a QFieldMapping object
  **
  *******************************************************************************/
 public class JsonToQFieldMappingAdapter
 {
 
    /*******************************************************************************
+    ** adapts a json string into an AbstractQFieldMapping.
+    **
+    ** The mapping will be a QKeyBasedFieldMapping if the keys in the json object are
+    ** Strings.  It will be a QIndexBasedFieldMapping if the keys are integers.
     **
     *******************************************************************************/
    public AbstractQFieldMapping<?> buildMappingFromJson(String json)
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/adapters/JsonToQRecordAdapter.java b/src/main/java/com/kingsrook/qqq/backend/core/adapters/JsonToQRecordAdapter.java
index cef0959f..cf88f286 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/adapters/JsonToQRecordAdapter.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/adapters/JsonToQRecordAdapter.java
@@ -15,13 +15,17 @@ import org.json.JSONObject;
 
 
 /*******************************************************************************
+ ** Adapter class to convert a JSON string into a list of QRecords.
  **
  *******************************************************************************/
 public class JsonToQRecordAdapter
 {
 
    /*******************************************************************************
-    ** todo - meta-data validation, mapping, type handling
+    ** convert a JSON String into a List of QRecords, for a given table, optionally
+    ** using a given mapping.
+    **
+    ** todo - meta-data validation, use the mapping, type handling
     *******************************************************************************/
    public List<QRecord> buildRecordsFromJson(String json, QTableMetaData table, AbstractQFieldMapping<?> mapping)
    {
@@ -69,6 +73,8 @@ public class JsonToQRecordAdapter
 
 
    /*******************************************************************************
+    ** private method to build one QRecord from one jsonObject
+    **
     ** todo - meta-data validation, mapping, type handling
     *******************************************************************************/
    private QRecord buildRecordFromJsonObject(JSONObject jsonObject)
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/exceptions/QException.java b/src/main/java/com/kingsrook/qqq/backend/core/exceptions/QException.java
index 68f2ffcb..1457469e 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/exceptions/QException.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/exceptions/QException.java
@@ -7,7 +7,9 @@ package com.kingsrook.qqq.backend.core.exceptions;
  *******************************************************************************/
 public class QException extends Exception
 {
+
    /*******************************************************************************
+    ** Constructor of message
     **
     *******************************************************************************/
    public QException(String message)
@@ -18,6 +20,7 @@ public class QException extends Exception
 
 
    /*******************************************************************************
+    ** Constructor of message & cause
     **
     *******************************************************************************/
    public QException(String message, Throwable cause)
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/exceptions/QInstanceValidationException.java b/src/main/java/com/kingsrook/qqq/backend/core/exceptions/QInstanceValidationException.java
index 223643e3..884ce134 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/exceptions/QInstanceValidationException.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/exceptions/QInstanceValidationException.java
@@ -7,6 +7,8 @@ import com.kingsrook.qqq.backend.core.utils.StringUtils;
 
 
 /*******************************************************************************
+ ** Exception thrown during qqq-starup, if a QInstance is found to have validation
+ ** issues.  Contains a list of reasons (to avoid spoon-feeding as much as possible).
  **
  *******************************************************************************/
 public class QInstanceValidationException extends QException
@@ -16,6 +18,7 @@ public class QInstanceValidationException extends QException
 
 
    /*******************************************************************************
+    ** Constructor of message - does not populate reasons!
     **
     *******************************************************************************/
    public QInstanceValidationException(String message)
@@ -26,6 +29,7 @@ public class QInstanceValidationException extends QException
 
 
    /*******************************************************************************
+    ** Constructor of a list of reasons.  They feed into the core exception message.
     **
     *******************************************************************************/
    public QInstanceValidationException(List<String> reasons)
@@ -44,6 +48,7 @@ public class QInstanceValidationException extends QException
 
 
    /*******************************************************************************
+    ** Constructor of an array/varargs of reasons.  They feed into the core exception message.
     **
     *******************************************************************************/
    public QInstanceValidationException(String... reasons)
@@ -62,6 +67,7 @@ public class QInstanceValidationException extends QException
 
 
    /*******************************************************************************
+    ** Constructor of message & cause - does not populate reasons!
     **
     *******************************************************************************/
    public QInstanceValidationException(String message, Throwable cause)
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/exceptions/QModuleDispatchException.java b/src/main/java/com/kingsrook/qqq/backend/core/exceptions/QModuleDispatchException.java
index 5caef40c..7f03adfd 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/exceptions/QModuleDispatchException.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/exceptions/QModuleDispatchException.java
@@ -2,12 +2,14 @@ package com.kingsrook.qqq.backend.core.exceptions;
 
 
 /*******************************************************************************
- * Base class for checked exceptions thrown in qqq.
+ * Exception thrown while doing module-dispatch
  *
  *******************************************************************************/
 public class QModuleDispatchException extends QException
 {
+
    /*******************************************************************************
+    ** Constructor of message
     **
     *******************************************************************************/
    public QModuleDispatchException(String message)
@@ -18,6 +20,7 @@ public class QModuleDispatchException extends QException
 
 
    /*******************************************************************************
+    ** Constructor of message & cause
     **
     *******************************************************************************/
    public QModuleDispatchException(String message, Throwable cause)
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/exceptions/QUserFacingException.java b/src/main/java/com/kingsrook/qqq/backend/core/exceptions/QUserFacingException.java
index 04836636..75cd580a 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/exceptions/QUserFacingException.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/exceptions/QUserFacingException.java
@@ -2,6 +2,7 @@ package com.kingsrook.qqq.backend.core.exceptions;
 
 
 /*******************************************************************************
+ ** Exception with a good-quality message meant to be shown to an end-user.
  **
  *******************************************************************************/
 public class QUserFacingException extends QException
@@ -9,6 +10,7 @@ public class QUserFacingException extends QException
 
 
    /*******************************************************************************
+    ** Constructor of message
     **
     *******************************************************************************/
    public QUserFacingException(String message)
@@ -19,6 +21,7 @@ public class QUserFacingException extends QException
 
 
    /*******************************************************************************
+    ** Constructor of message & cause
     **
     *******************************************************************************/
    public QUserFacingException(String message, Throwable cause)
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/instances/QInstanceEnricher.java b/src/main/java/com/kingsrook/qqq/backend/core/instances/QInstanceEnricher.java
index 20d54a95..be039f1c 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/instances/QInstanceEnricher.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/instances/QInstanceEnricher.java
@@ -9,6 +9,8 @@ import com.kingsrook.qqq.backend.core.utils.StringUtils;
 
 
 /*******************************************************************************
+ ** As part of helping a QInstance be created and/or validated, apply some default
+ ** transfomations to it, such as populating missing labels based on names.
  **
  *******************************************************************************/
 public class QInstanceEnricher
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/instances/QInstanceValidationKey.java b/src/main/java/com/kingsrook/qqq/backend/core/instances/QInstanceValidationKey.java
index 9e11fbe8..b0f5cb21 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/instances/QInstanceValidationKey.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/instances/QInstanceValidationKey.java
@@ -2,6 +2,7 @@ package com.kingsrook.qqq.backend.core.instances;
 
 
 /*******************************************************************************
+ ** Object used to mark a QInstance has having been validated.
  **
  *******************************************************************************/
 public final class QInstanceValidationKey
@@ -10,6 +11,7 @@ public final class QInstanceValidationKey
     ** package-private constructor, so that only this package can create an instance
     ** of this class, but an instance of this class is required to mark an instance
     ** as validated, so no one can cheat.
+    **
     *******************************************************************************/
    QInstanceValidationKey()
    {
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/instances/QInstanceValidator.java b/src/main/java/com/kingsrook/qqq/backend/core/instances/QInstanceValidator.java
index 662f9415..6a276143 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/instances/QInstanceValidator.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/instances/QInstanceValidator.java
@@ -11,6 +11,13 @@ import com.kingsrook.qqq.backend.core.utils.StringUtils;
 
 
 /*******************************************************************************
+ ** Class that knows how to take a look at the data in a QInstance, and report
+ ** if it is all valid - e.g., non-null things are set; references line-up (e.g.,
+ ** a table's backend must be a defined backend).
+ **
+ ** Prior to doing validation, the the QInstanceEnricher is ran over the QInstance,
+ ** e.g., to fill in things that can be defaulted or assumed.  TODO let the instance
+ ** customize or opt-out of Enrichment.
  **
  *******************************************************************************/
 public class QInstanceValidator
@@ -34,6 +41,7 @@ public class QInstanceValidator
          /////////////////////////////////////////////////////////////////////////////////////////////////
          // before validation, enrich the object (e.g., to fill in values that the user doesn't have to //
          /////////////////////////////////////////////////////////////////////////////////////////////////
+         // TODO - possible point of customization (use a different enricher, or none, or pass it options).
          new QInstanceEnricher().enrich(qInstance);
       }
       catch(Exception e)
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/model/actions/AbstractQFieldMapping.java b/src/main/java/com/kingsrook/qqq/backend/core/model/actions/AbstractQFieldMapping.java
index fa1bf8b8..62d043e8 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/model/actions/AbstractQFieldMapping.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/model/actions/AbstractQFieldMapping.java
@@ -10,6 +10,7 @@ public abstract class AbstractQFieldMapping<T>
 
    /*******************************************************************************
     ** Enum to define the types of sources a mapping may use
+    **
     *******************************************************************************/
    @SuppressWarnings("rawtypes")
    public enum SourceType
@@ -46,12 +47,14 @@ public abstract class AbstractQFieldMapping<T>
    /*******************************************************************************
     ** For a given field, return its source - a key (e.g., from a json object or csv
     ** with a header row) or an index (for a csv w/o a header)
+    **
     *******************************************************************************/
    public abstract T getFieldSource(String fieldName);
 
 
    /*******************************************************************************
     ** for a mapping instance, get what its source-type is
+    **
     *******************************************************************************/
    public abstract SourceType getSourceType();
 }
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/model/actions/AbstractQRequest.java b/src/main/java/com/kingsrook/qqq/backend/core/model/actions/AbstractQRequest.java
index 3a0d5c57..145819af 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/model/actions/AbstractQRequest.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/model/actions/AbstractQRequest.java
@@ -7,6 +7,7 @@ import com.kingsrook.qqq.backend.core.model.metadata.QInstance;
 
 
 /*******************************************************************************
+ ** Base request class for all Q actions.
  **
  *******************************************************************************/
 public abstract class AbstractQRequest
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/model/actions/AbstractQResult.java b/src/main/java/com/kingsrook/qqq/backend/core/model/actions/AbstractQResult.java
index d94bf557..9530e77c 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/model/actions/AbstractQResult.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/model/actions/AbstractQResult.java
@@ -2,6 +2,7 @@ package com.kingsrook.qqq.backend.core.model.actions;
 
 
 /*******************************************************************************
+ ** Abstract base class for any qqq-action's result.
  **
  *******************************************************************************/
 public abstract class AbstractQResult
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/model/actions/AbstractQTableRequest.java b/src/main/java/com/kingsrook/qqq/backend/core/model/actions/AbstractQTableRequest.java
index 55fedaf6..9c6e1166 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/model/actions/AbstractQTableRequest.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/model/actions/AbstractQTableRequest.java
@@ -7,6 +7,7 @@ import com.kingsrook.qqq.backend.core.model.metadata.QTableMetaData;
 
 
 /*******************************************************************************
+ ** Base class for any qqq action that works against a table.
  **
  *******************************************************************************/
 public abstract class AbstractQTableRequest extends AbstractQRequest
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/model/actions/DeleteRequest.java b/src/main/java/com/kingsrook/qqq/backend/core/model/actions/DeleteRequest.java
index 4b11ae0b..492fd368 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/model/actions/DeleteRequest.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/model/actions/DeleteRequest.java
@@ -7,6 +7,7 @@ import com.kingsrook.qqq.backend.core.model.metadata.QInstance;
 
 
 /*******************************************************************************
+ ** Request for a Delete action.
  **
  *******************************************************************************/
 public class DeleteRequest extends AbstractQTableRequest
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/model/actions/InsertRequest.java b/src/main/java/com/kingsrook/qqq/backend/core/model/actions/InsertRequest.java
index 81fe07f6..42d04b53 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/model/actions/InsertRequest.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/model/actions/InsertRequest.java
@@ -7,6 +7,7 @@ import com.kingsrook.qqq.backend.core.model.metadata.QInstance;
 
 
 /*******************************************************************************
+ ** Request data handler for the Insert action
  **
  *******************************************************************************/
 public class InsertRequest extends AbstractQTableRequest
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/model/actions/InsertResult.java b/src/main/java/com/kingsrook/qqq/backend/core/model/actions/InsertResult.java
index ff16c26d..c03a5e24 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/model/actions/InsertResult.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/model/actions/InsertResult.java
@@ -6,7 +6,7 @@ import com.kingsrook.qqq.backend.core.model.data.QRecordWithStatus;
 
 
 /*******************************************************************************
- * Result for a query action
+ * Result for an insert action
  *
  *******************************************************************************/
 public class InsertResult extends AbstractQResult
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/model/actions/MetaDataRequest.java b/src/main/java/com/kingsrook/qqq/backend/core/model/actions/MetaDataRequest.java
index 4bbe2638..c0862dc4 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/model/actions/MetaDataRequest.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/model/actions/MetaDataRequest.java
@@ -5,6 +5,7 @@ import com.kingsrook.qqq.backend.core.model.metadata.QInstance;
 
 
 /*******************************************************************************
+ ** Request for the meta-data action
  **
  *******************************************************************************/
 public class MetaDataRequest extends AbstractQRequest
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/model/actions/QCriteriaOperator.java b/src/main/java/com/kingsrook/qqq/backend/core/model/actions/QCriteriaOperator.java
index 24c28a75..41413883 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/model/actions/QCriteriaOperator.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/model/actions/QCriteriaOperator.java
@@ -2,6 +2,7 @@ package com.kingsrook.qqq.backend.core.model.actions;
 
 
 /*******************************************************************************
+ ** Possible query criteria field operators
  **
  *******************************************************************************/
 public enum QCriteriaOperator
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/model/actions/QFilterCriteria.java b/src/main/java/com/kingsrook/qqq/backend/core/model/actions/QFilterCriteria.java
index 763bcbf3..f4444c60 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/model/actions/QFilterCriteria.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/model/actions/QFilterCriteria.java
@@ -6,7 +6,7 @@ import java.util.List;
 
 
 /*******************************************************************************
- * Component of a Query
+ * A single criteria Component of a Query
  *
  *******************************************************************************/
 public class QFilterCriteria
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/model/actions/QFilterOrderBy.java b/src/main/java/com/kingsrook/qqq/backend/core/model/actions/QFilterOrderBy.java
index 04399b53..ef7256fb 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/model/actions/QFilterOrderBy.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/model/actions/QFilterOrderBy.java
@@ -2,6 +2,7 @@ package com.kingsrook.qqq.backend.core.model.actions;
 
 
 /*******************************************************************************
+ ** Bean representing an element of a query order-by clause.
  **
  *******************************************************************************/
 public class QFilterOrderBy
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/model/actions/QIndexBasedFieldMapping.java b/src/main/java/com/kingsrook/qqq/backend/core/model/actions/QIndexBasedFieldMapping.java
index bbda0c31..c7de9480 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/model/actions/QIndexBasedFieldMapping.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/model/actions/QIndexBasedFieldMapping.java
@@ -6,7 +6,11 @@ import java.util.Map;
 
 
 /*******************************************************************************
- ** Note;  1-based index!!
+ ** Field Mapping implementation that uses Integer keys (e.g., from a CSV file
+ ** WITHOUT a header row).
+ **
+ ** Note:  1-based index!!
+ **
  *******************************************************************************/
 public class QIndexBasedFieldMapping extends AbstractQFieldMapping<Integer>
 {
@@ -15,6 +19,8 @@ public class QIndexBasedFieldMapping extends AbstractQFieldMapping<Integer>
 
 
    /*******************************************************************************
+    ** Get the field source  (e.g., integer index of a CSV column) corresponding to a 
+    ** propery qqq table fieldName.
     **
     *******************************************************************************/
    @Override
@@ -31,6 +37,7 @@ public class QIndexBasedFieldMapping extends AbstractQFieldMapping<Integer>
 
 
    /*******************************************************************************
+    ** Tell framework what kind of keys this mapping class uses (INDEX)
     **
     *******************************************************************************/
    @Override
@@ -42,6 +49,8 @@ public class QIndexBasedFieldMapping extends AbstractQFieldMapping<Integer>
 
 
    /*******************************************************************************
+    ** Add a single mapping to this mapping object.  fieldName = qqq metaData fieldName,
+    ** key = field index (integer) in the CSV
     **
     *******************************************************************************/
    public void addMapping(String fieldName, Integer key)
@@ -56,6 +65,8 @@ public class QIndexBasedFieldMapping extends AbstractQFieldMapping<Integer>
 
 
    /*******************************************************************************
+    ** Fluently add a single mapping to this mapping object.  fieldName = qqq metaData 
+    ** fieldName, key = field index (integer) in the CSV
     **
     *******************************************************************************/
    public QIndexBasedFieldMapping withMapping(String fieldName, Integer key)
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/model/actions/QKeyBasedFieldMapping.java b/src/main/java/com/kingsrook/qqq/backend/core/model/actions/QKeyBasedFieldMapping.java
index 82b644a4..45e9d2e1 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/model/actions/QKeyBasedFieldMapping.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/model/actions/QKeyBasedFieldMapping.java
@@ -6,6 +6,8 @@ import java.util.Map;
 
 
 /*******************************************************************************
+ ** Field Mapping implementation that uses string keys (e.g., from a CSV file
+ ** with a header row, or from one JSON object to the proper qqq field names)
  **
  *******************************************************************************/
 public class QKeyBasedFieldMapping extends AbstractQFieldMapping<String>
@@ -15,6 +17,8 @@ public class QKeyBasedFieldMapping extends AbstractQFieldMapping<String>
 
 
    /*******************************************************************************
+    ** Get the source field (e.g., name that's in the CSV header or the input json
+    ** object) corresponding to a propery qqq table fieldName.
     **
     *******************************************************************************/
    @Override
@@ -31,6 +35,7 @@ public class QKeyBasedFieldMapping extends AbstractQFieldMapping<String>
 
 
    /*******************************************************************************
+    ** Tell framework what kind of keys this mapping class uses (KEY)
     **
     *******************************************************************************/
    @Override
@@ -42,6 +47,8 @@ public class QKeyBasedFieldMapping extends AbstractQFieldMapping<String>
 
 
    /*******************************************************************************
+    ** Add a single mapping to this mapping object.  fieldName = qqq metaData fieldName,
+    ** key = field name in the CSV or source-json, for example.
     **
     *******************************************************************************/
    public void addMapping(String fieldName, String key)
@@ -56,6 +63,8 @@ public class QKeyBasedFieldMapping extends AbstractQFieldMapping<String>
 
 
    /*******************************************************************************
+    ** Fluently add a single mapping to this mapping object.  fieldName = qqq metaData fieldName,
+    ** key = field name in the CSV or source-json, for example.
     **
     *******************************************************************************/
    public QKeyBasedFieldMapping withMapping(String fieldName, String key)
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/model/actions/QueryRequest.java b/src/main/java/com/kingsrook/qqq/backend/core/model/actions/QueryRequest.java
index 74213577..b4652912 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/model/actions/QueryRequest.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/model/actions/QueryRequest.java
@@ -5,6 +5,7 @@ import com.kingsrook.qqq.backend.core.model.metadata.QInstance;
 
 
 /*******************************************************************************
+ ** Request data for the Query action
  **
  *******************************************************************************/
 public class QueryRequest extends AbstractQTableRequest
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/model/actions/QueryResult.java b/src/main/java/com/kingsrook/qqq/backend/core/model/actions/QueryResult.java
index b9cbb8f5..66903390 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/model/actions/QueryResult.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/model/actions/QueryResult.java
@@ -6,8 +6,8 @@ import com.kingsrook.qqq.backend.core.model.data.QRecord;
 
 
 /*******************************************************************************
- * Result for a query action
- *
+ ** Result for a query action
+ **
  *******************************************************************************/
 public class QueryResult extends AbstractQResult
 {
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/model/actions/TableMetaDataRequest.java b/src/main/java/com/kingsrook/qqq/backend/core/model/actions/TableMetaDataRequest.java
index a55639a6..511fac38 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/model/actions/TableMetaDataRequest.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/model/actions/TableMetaDataRequest.java
@@ -5,6 +5,7 @@ import com.kingsrook.qqq.backend.core.model.metadata.QInstance;
 
 
 /*******************************************************************************
+ ** Request for meta-data for a table.
  **
  *******************************************************************************/
 public class TableMetaDataRequest extends AbstractQRequest
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/model/actions/TableMetaDataResult.java b/src/main/java/com/kingsrook/qqq/backend/core/model/actions/TableMetaDataResult.java
index eb58c2ca..7a3e507c 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/model/actions/TableMetaDataResult.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/model/actions/TableMetaDataResult.java
@@ -5,7 +5,7 @@ import com.kingsrook.qqq.backend.core.model.metadata.frontend.QFrontendTableMeta
 
 
 /*******************************************************************************
- * Result for a metaData action
+ * Result for a table-metaData action
  *
  *******************************************************************************/
 public class TableMetaDataResult extends AbstractQResult
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/model/data/QRecord.java b/src/main/java/com/kingsrook/qqq/backend/core/model/data/QRecord.java
index 6a5e30ac..fab0fa32 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/model/data/QRecord.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/model/data/QRecord.java
@@ -7,7 +7,7 @@ import java.util.Map;
 
 
 /*******************************************************************************
- * Data Record within qqq
+ * Data Record within qqq.  e.g., a single row from a database.
  *
  *******************************************************************************/
 public class QRecord
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/model/data/QRecordWithStatus.java b/src/main/java/com/kingsrook/qqq/backend/core/model/data/QRecordWithStatus.java
index 93134b46..036f42f4 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/model/data/QRecordWithStatus.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/model/data/QRecordWithStatus.java
@@ -5,6 +5,10 @@ import java.util.List;
 
 
 /*******************************************************************************
+ ** Wrapper on a QRecord, to add status information after an action took place.
+ ** e.g., any errors that occurred.
+ **
+ ** TODO - expand?
  **
  *******************************************************************************/
 public class QRecordWithStatus extends QRecord
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/QBackendMetaData.java b/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/QBackendMetaData.java
index 939deade..b28547d7 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/QBackendMetaData.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/QBackendMetaData.java
@@ -7,6 +7,8 @@ import com.fasterxml.jackson.annotation.JsonFilter;
 
 
 /*******************************************************************************
+ ** Meta-data to provide details of a backend (e.g., RDBMS instance, S3 buckets,
+ ** NoSQL table, etc) within a qqq instance
  **
  *******************************************************************************/
 public class QBackendMetaData
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/QFieldMetaData.java b/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/QFieldMetaData.java
index 13f3db3b..467ccd61 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/QFieldMetaData.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/QFieldMetaData.java
@@ -2,6 +2,7 @@ package com.kingsrook.qqq.backend.core.model.metadata;
 
 
 /*******************************************************************************
+ ** Meta-data to represent a single field in a table.
  **
  *******************************************************************************/
 public class QFieldMetaData
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/QFieldType.java b/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/QFieldType.java
index c4d4e21c..9b2ad831 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/QFieldType.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/QFieldType.java
@@ -2,6 +2,7 @@ package com.kingsrook.qqq.backend.core.model.metadata;
 
 
 /*******************************************************************************
+ ** Possible data types for Q-fields.
  **
  *******************************************************************************/
 public enum QFieldType
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/QInstance.java b/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/QInstance.java
index 48af755a..13aa4bef 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/QInstance.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/QInstance.java
@@ -8,6 +8,7 @@ import com.kingsrook.qqq.backend.core.instances.QInstanceValidationKey;
 
 
 /*******************************************************************************
+ ** Container for all meta-data in a running instance of a QQQ application.
  **
  *******************************************************************************/
 public class QInstance
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/QTableMetaData.java b/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/QTableMetaData.java
index bcecd75f..c1373931 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/QTableMetaData.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/QTableMetaData.java
@@ -6,6 +6,7 @@ import java.util.Map;
 
 
 /*******************************************************************************
+ ** Meta-Data to define a table in a QQQ instance.
  **
  *******************************************************************************/
 public class QTableMetaData
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/frontend/QFrontendFieldMetaData.java b/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/frontend/QFrontendFieldMetaData.java
index d11c66f5..9ceb10f1 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/frontend/QFrontendFieldMetaData.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/frontend/QFrontendFieldMetaData.java
@@ -8,8 +8,9 @@ import com.kingsrook.qqq.backend.core.model.metadata.QFieldType;
 
 
 /*******************************************************************************
- * Version of QTableMetaData that's meant for transmitting to a frontend.
+ * Version of QFieldMetaData that's meant for transmitting to a frontend.
  * e.g., it excludes backend-only details.
+ *
  *******************************************************************************/
 @JsonInclude(Include.NON_NULL)
 public class QFrontendFieldMetaData
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/frontend/QFrontendTableMetaData.java b/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/frontend/QFrontendTableMetaData.java
index 9c0a9c3b..6d0f5d0b 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/frontend/QFrontendTableMetaData.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/frontend/QFrontendTableMetaData.java
@@ -12,6 +12,7 @@ import com.kingsrook.qqq.backend.core.model.metadata.QTableMetaData;
 /*******************************************************************************
  * Version of QTableMetaData that's meant for transmitting to a frontend.
  * e.g., it excludes backend-only details.
+ *
  *******************************************************************************/
 @JsonInclude(Include.NON_NULL)
 public class QFrontendTableMetaData
@@ -89,4 +90,4 @@ public class QFrontendTableMetaData
    {
       return fields;
    }
-}
\ No newline at end of file
+}
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/modules/QModuleDispatcher.java b/src/main/java/com/kingsrook/qqq/backend/core/modules/QModuleDispatcher.java
index 9a1b026e..2619b1c4 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/modules/QModuleDispatcher.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/modules/QModuleDispatcher.java
@@ -9,6 +9,10 @@ import com.kingsrook.qqq.backend.core.modules.interfaces.QModuleInterface;
 
 
 /*******************************************************************************
+ ** This class is responsible for loading a backend module, by its name, and 
+ ** returning an instance.
+ **
+ ** TODO - make this mapping runtime-bound, not pre-compiled in.
  **
  *******************************************************************************/
 public class QModuleDispatcher
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/modules/interfaces/DeleteInterface.java b/src/main/java/com/kingsrook/qqq/backend/core/modules/interfaces/DeleteInterface.java
index 942eee0a..968a4e83 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/modules/interfaces/DeleteInterface.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/modules/interfaces/DeleteInterface.java
@@ -7,6 +7,7 @@ import com.kingsrook.qqq.backend.core.model.actions.DeleteResult;
 
 
 /*******************************************************************************
+ ** Interface for the Delete action.
  **
  *******************************************************************************/
 public interface DeleteInterface
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/modules/interfaces/InsertInterface.java b/src/main/java/com/kingsrook/qqq/backend/core/modules/interfaces/InsertInterface.java
index a6dc5967..1f66053a 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/modules/interfaces/InsertInterface.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/modules/interfaces/InsertInterface.java
@@ -7,6 +7,7 @@ import com.kingsrook.qqq.backend.core.model.actions.InsertResult;
 
 
 /*******************************************************************************
+ ** Interface for the Insert action.
  **
  *******************************************************************************/
 public interface InsertInterface
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/modules/interfaces/QModuleInterface.java b/src/main/java/com/kingsrook/qqq/backend/core/modules/interfaces/QModuleInterface.java
index 46820b1a..457df901 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/modules/interfaces/QModuleInterface.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/modules/interfaces/QModuleInterface.java
@@ -2,6 +2,10 @@ package com.kingsrook.qqq.backend.core.modules.interfaces;
 
 
 /*******************************************************************************
+ ** Interface that a QModule must implement.
+ **
+ ** Note, methods all have a default version, which throws a 'not implement'
+ ** exception.
  **
  *******************************************************************************/
 public interface QModuleInterface
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/modules/interfaces/QueryInterface.java b/src/main/java/com/kingsrook/qqq/backend/core/modules/interfaces/QueryInterface.java
index 29368444..cc7bd7d4 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/modules/interfaces/QueryInterface.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/modules/interfaces/QueryInterface.java
@@ -7,6 +7,7 @@ import com.kingsrook.qqq.backend.core.model.actions.QueryResult;
 
 
 /*******************************************************************************
+ ** Interface for the Query action.
  **
  *******************************************************************************/
 public interface QueryInterface
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/modules/mock/MockDeleteAction.java b/src/main/java/com/kingsrook/qqq/backend/core/modules/mock/MockDeleteAction.java
index 9248fca3..d6ddb423 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/modules/mock/MockDeleteAction.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/modules/mock/MockDeleteAction.java
@@ -10,6 +10,7 @@ import com.kingsrook.qqq.backend.core.modules.interfaces.DeleteInterface;
 
 
 /*******************************************************************************
+ ** Mocked up version of delete action.
  **
  *******************************************************************************/
 public class MockDeleteAction implements DeleteInterface
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/modules/mock/MockInsertAction.java b/src/main/java/com/kingsrook/qqq/backend/core/modules/mock/MockInsertAction.java
index 4e229a2a..dab29841 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/modules/mock/MockInsertAction.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/modules/mock/MockInsertAction.java
@@ -9,6 +9,7 @@ import com.kingsrook.qqq.backend.core.modules.interfaces.InsertInterface;
 
 
 /*******************************************************************************
+ ** Mocked up version of insert action.
  **
  *******************************************************************************/
 public class MockInsertAction implements InsertInterface
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/modules/mock/MockModule.java b/src/main/java/com/kingsrook/qqq/backend/core/modules/mock/MockModule.java
index ba573a38..aef0ac33 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/modules/mock/MockModule.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/modules/mock/MockModule.java
@@ -8,6 +8,10 @@ import com.kingsrook.qqq.backend.core.modules.interfaces.QueryInterface;
 
 
 /*******************************************************************************
+ ** A Mock implementation of the QModuleInterface.
+ **
+ ** Mostly just exists to allow the backend-core repository to be able to run
+ ** tests over all the actions available through the QModuleInterface.
  **
  *******************************************************************************/
 public class MockModule implements QModuleInterface
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/modules/mock/MockQueryAction.java b/src/main/java/com/kingsrook/qqq/backend/core/modules/mock/MockQueryAction.java
index a357deef..2e4aff20 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/modules/mock/MockQueryAction.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/modules/mock/MockQueryAction.java
@@ -12,6 +12,7 @@ import com.kingsrook.qqq.backend.core.modules.interfaces.QueryInterface;
 
 
 /*******************************************************************************
+ ** Mocked up version of query action.
  **
  *******************************************************************************/
 public class MockQueryAction implements QueryInterface
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/utils/CollectionUtils.java b/src/main/java/com/kingsrook/qqq/backend/core/utils/CollectionUtils.java
index 155a1bfe..022db3b3 100755
--- a/src/main/java/com/kingsrook/qqq/backend/core/utils/CollectionUtils.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/utils/CollectionUtils.java
@@ -10,6 +10,7 @@ import java.util.function.Function;
 
 
 /*******************************************************************************
+ ** Utility class for working with Collections.
  **
  *******************************************************************************/
 public class CollectionUtils
@@ -101,6 +102,7 @@ public class CollectionUtils
 
 
    /*******************************************************************************
+    ** add all values from one map to another.
     **
     *******************************************************************************/
    public static <K, V> void addAllToMap(Map<K, V> addingTo, Map<K, V> addingFrom)
@@ -114,6 +116,8 @@ public class CollectionUtils
 
 
    /*******************************************************************************
+    ** Build a map from a list, supplying a function that extracts keys from the
+    ** objects in the list (the objects in the list become the values in the map).
     **
     *******************************************************************************/
    public static <K, V> Map<K, V> listToMap(List<V> values, Function<V, ? extends K> keyFunction)
@@ -135,6 +139,9 @@ public class CollectionUtils
 
 
    /*******************************************************************************
+    ** Build a map from a list, supplying a function that extracts keys from the
+    ** objects in the list, and another function that extracts the values from the
+    ** objects in the list.
     **
     *******************************************************************************/
    public static <E, K, V> Map<K, V> listToMap(List<E> elements, Function<E, ? extends K> keyFunction, Function<E, ? extends V> valueFunction)
@@ -156,6 +163,8 @@ public class CollectionUtils
 
 
    /*******************************************************************************
+    ** Build a listingHash from a list, supplying a function that extracts keys from the
+    ** objects in the list (the objects in the list become the values in the map).
     **
     *******************************************************************************/
    public static <K, V> ListingHash<K, V> listToListingHash(List<V> values, Function<V, ? extends K> keyFunction)
@@ -218,6 +227,9 @@ public class CollectionUtils
 
 
    /*******************************************************************************
+    ** Convert a list to a 2-level Map (ie., Map of Map of Key,Value), where 2
+    ** lambdas are provided for extract the two levels of keys from the objects in
+    ** the list, and the values in the map are the values in the list.
     **
     *******************************************************************************/
    public static <K1, K2, V> Map<K1, Map<K2, V>> listTo2LevelMap(List<V> values, Function<V, ? extends K1> keyFunction1, Function<V, ? extends K2> keyFunction2)
@@ -279,6 +291,8 @@ public class CollectionUtils
 
 
    /*******************************************************************************
+    ** build comma-delimited string of question marks from a collection (e.g., for
+    ** an sql string)
     **
     *******************************************************************************/
    public static String getQuestionMarks(Collection<?> c)
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/utils/ExceptionUtils.java b/src/main/java/com/kingsrook/qqq/backend/core/utils/ExceptionUtils.java
index 2100e38d..510d3388 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/utils/ExceptionUtils.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/utils/ExceptionUtils.java
@@ -2,12 +2,15 @@ package com.kingsrook.qqq.backend.core.utils;
 
 
 /*******************************************************************************
+ ** Utility class for working with exceptions.
  **
  *******************************************************************************/
 public class ExceptionUtils
 {
 
    /*******************************************************************************
+    ** Find a specific exception class in an exception's caused-by chain.  Returns
+    ** null if not found.  Be aware, checks for class.equals -- not instanceof.
     **
     *******************************************************************************/
    public static <T extends Throwable> T findClassInRootChain(Throwable e, Class<T> targetClass)
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/utils/JsonUtils.java b/src/main/java/com/kingsrook/qqq/backend/core/utils/JsonUtils.java
index 0ea4b8c3..2f1d5f59 100644
--- a/src/main/java/com/kingsrook/qqq/backend/core/utils/JsonUtils.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/utils/JsonUtils.java
@@ -15,6 +15,8 @@ import org.json.JSONObject;
 
 
 /*******************************************************************************
+ ** Utility class for working with JSON.
+ **
  ** See: https://www.baeldung.com/jackson-vs-gson
  **
  *******************************************************************************/
@@ -25,6 +27,9 @@ public class JsonUtils
 
 
    /*******************************************************************************
+    ** Serialize any object into a JSON String.
+    **
+    ** Internally using jackson - so jackson annotations apply!
     **
     *******************************************************************************/
    public static String toJson(Object object)
@@ -45,6 +50,9 @@ public class JsonUtils
 
 
    /*******************************************************************************
+    ** Serialize any object into a "pretty" / formatted JSON String.
+    **
+    ** Internally using jackson - so jackson annotations apply!
     **
     *******************************************************************************/
    public static String toPrettyJson(Object object)
@@ -65,6 +73,9 @@ public class JsonUtils
 
 
    /*******************************************************************************
+    ** De-serialize a json string into an object of the specified class.
+    **
+    ** Internally using jackson - so jackson annotations apply!
     **
     *******************************************************************************/
    public static <T> T toObject(String json, Class<T> targetClass) throws IOException
@@ -77,6 +88,7 @@ public class JsonUtils
 
 
    /*******************************************************************************
+    ** De-serialize a json string into a JSONObject (string must start with "{")
     **
     *******************************************************************************/
    public static JSONObject toJSONObject(String json) throws JSONException
@@ -88,6 +100,7 @@ public class JsonUtils
 
 
    /*******************************************************************************
+    ** De-serialize a json string into a JSONArray (string must start with "[")
     **
     *******************************************************************************/
    public static JSONArray toJSONArray(String json) throws JSONException
@@ -99,6 +112,7 @@ public class JsonUtils
 
 
    /*******************************************************************************
+    ** Standard private method to build jackson ObjectMapper with standard features.
     **
     *******************************************************************************/
    private static ObjectMapper newObjectMapper()
@@ -121,6 +135,8 @@ public class JsonUtils
 
 
    /*******************************************************************************
+    ** Check if a string looks like it could be a JSON object (e.g., starts with "{"
+    ** (plus optional whitespace))
     **
     *******************************************************************************/
    public static boolean looksLikeObject(String json)
@@ -131,6 +147,8 @@ public class JsonUtils
 
 
    /*******************************************************************************
+    ** Check if a string looks like it could be a JSON array (e.g., starts with "["
+    ** (plus optional whitespace))
     **
     *******************************************************************************/
    public static boolean looksLikeArray(String json)
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/utils/ListingHash.java b/src/main/java/com/kingsrook/qqq/backend/core/utils/ListingHash.java
index 4b39f0c5..6de3f492 100755
--- a/src/main/java/com/kingsrook/qqq/backend/core/utils/ListingHash.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/utils/ListingHash.java
@@ -82,6 +82,9 @@ public class ListingHash<K, V> implements Map<K, List<V>>, Serializable
 
 
    /*******************************************************************************
+    ** Add all object from another ListingHash ('that') to this one.  Note, does it
+    ** at the level of the whole key=list (e.g., if a key was already in this, it'll
+    ** be replaced with the list from 'that'.
     **
     *******************************************************************************/
    public void addAll(ListingHash<K, V> that)
diff --git a/src/main/java/com/kingsrook/qqq/backend/core/utils/StringUtils.java b/src/main/java/com/kingsrook/qqq/backend/core/utils/StringUtils.java
index 3008e45e..0d4bedc3 100755
--- a/src/main/java/com/kingsrook/qqq/backend/core/utils/StringUtils.java
+++ b/src/main/java/com/kingsrook/qqq/backend/core/utils/StringUtils.java
@@ -8,6 +8,7 @@ import java.util.regex.Pattern;
 
 
 /*******************************************************************************
+ ** Utility methods for working with Strings
  **
  *******************************************************************************/
 public class StringUtils
@@ -111,8 +112,8 @@ public class StringUtils
 
 
    /*******************************************************************************
-    * truncate a string (null safely) at a max length.
-    *
+    ** truncate a string (null- and index-bounds- safely) at a max length.
+    **
     *******************************************************************************/
    public static String safeTruncate(String input, int maxLength)
    {
@@ -132,7 +133,10 @@ public class StringUtils
 
 
    /*******************************************************************************
-    *
+    ** null- and index-bounds- safely truncate a string to a max length, appending
+    ** a suffix (like "...") if it did get truncated.  Note that the returned string,
+    ** with the suffix added, will be at most maxLength.
+    **
     *******************************************************************************/
    public static String safeTruncate(String input, int maxLength, String suffix)
    {
@@ -289,6 +293,8 @@ public class StringUtils
 
 
    /*******************************************************************************
+    ** Switch between strings based on if the size of the parameter collection.  If
+    ** it is 1 (the singular) or not-1 (0 or 2+, the plural). Get back "" or "s"
     **
     *******************************************************************************/
    public static String plural(Collection<?> collection)
@@ -299,6 +305,8 @@ public class StringUtils
 
 
    /*******************************************************************************
+    ** Switch between strings based on if the 'size' parameter is 1 (the singular)
+    ** or not-1 (0 or 2+, the plural).  Get back "" or "s"
     **
     *******************************************************************************/
    public static String plural(Integer size)
@@ -309,6 +317,9 @@ public class StringUtils
 
 
    /*******************************************************************************
+    ** Switch between strings based on if the size of the parameter collection.  If
+    ** it is 1 (the singular) or not-1 (0 or 2+, the plural).  Specify/customize the
+    ** values that you get back (e.g., "y", "ies")
     **
     *******************************************************************************/
    public static String plural(Collection<?> collection, String ifOne, String ifNotOne)
@@ -319,6 +330,9 @@ public class StringUtils
 
 
    /*******************************************************************************
+    ** Switch between strings based on if the 'size' parameter is 1 (the singular)
+    ** or not-1 (0 or 2+, the plural).  Specify/customize the values that you get back
+    ** (e.g., "y", "ies")
     **
     *******************************************************************************/
    public static String plural(Integer size, String ifOne, String ifNotOne)
diff --git a/src/test/java/com/kingsrook/qqq/backend/core/actions/DeleteActionTest.java b/src/test/java/com/kingsrook/qqq/backend/core/actions/DeleteActionTest.java
index 4b6e06ec..b06871ff 100644
--- a/src/test/java/com/kingsrook/qqq/backend/core/actions/DeleteActionTest.java
+++ b/src/test/java/com/kingsrook/qqq/backend/core/actions/DeleteActionTest.java
@@ -13,12 +13,15 @@ import static org.junit.jupiter.api.Assertions.assertNotNull;
 
 
 /*******************************************************************************
+ ** Unit test for DeleteAction
  **
  *******************************************************************************/
 class DeleteActionTest
 {
 
    /*******************************************************************************
+    ** At the core level, there isn't much that can be asserted, as it uses the
+    ** mock implementation - just confirming that all of the "wiring" works.
     **
     *******************************************************************************/
    @Test
@@ -33,4 +36,4 @@ class DeleteActionTest
       assertTrue(result.getRecords().stream().allMatch(r -> r.getErrors() == null));
    }
 
-}
\ No newline at end of file
+}
diff --git a/src/test/java/com/kingsrook/qqq/backend/core/actions/InsertActionTest.java b/src/test/java/com/kingsrook/qqq/backend/core/actions/InsertActionTest.java
index c3a24c3d..5f549e3a 100644
--- a/src/test/java/com/kingsrook/qqq/backend/core/actions/InsertActionTest.java
+++ b/src/test/java/com/kingsrook/qqq/backend/core/actions/InsertActionTest.java
@@ -13,12 +13,15 @@ import static org.junit.jupiter.api.Assertions.assertNotNull;
 
 
 /*******************************************************************************
+ ** Unit test for InsertAction
  **
  *******************************************************************************/
 class InsertActionTest
 {
 
    /*******************************************************************************
+    ** At the core level, there isn't much that can be asserted, as it uses the
+    ** mock implementation - just confirming that all of the "wiring" works.
     **
     *******************************************************************************/
    @Test
@@ -35,4 +38,4 @@ class InsertActionTest
       assertNotNull(result);
    }
 
-}
\ No newline at end of file
+}
diff --git a/src/test/java/com/kingsrook/qqq/backend/core/actions/MetaDataActionTest.java b/src/test/java/com/kingsrook/qqq/backend/core/actions/MetaDataActionTest.java
index 9db3254a..710a17ce 100644
--- a/src/test/java/com/kingsrook/qqq/backend/core/actions/MetaDataActionTest.java
+++ b/src/test/java/com/kingsrook/qqq/backend/core/actions/MetaDataActionTest.java
@@ -10,6 +10,7 @@ import static org.junit.jupiter.api.Assertions.*;
 
 
 /*******************************************************************************
+ ** Unit test for MetaDataAction
  **
  *******************************************************************************/
 class MetaDataActionTest
@@ -29,4 +30,4 @@ class MetaDataActionTest
       assertEquals("person", result.getTables().get("person").getName());
       assertEquals("Person", result.getTables().get("person").getLabel());
    }
-}
\ No newline at end of file
+}
diff --git a/src/test/java/com/kingsrook/qqq/backend/core/actions/QueryActionTest.java b/src/test/java/com/kingsrook/qqq/backend/core/actions/QueryActionTest.java
index 81558133..d408e886 100644
--- a/src/test/java/com/kingsrook/qqq/backend/core/actions/QueryActionTest.java
+++ b/src/test/java/com/kingsrook/qqq/backend/core/actions/QueryActionTest.java
@@ -10,12 +10,15 @@ import static org.junit.jupiter.api.Assertions.assertNotNull;
 
 
 /*******************************************************************************
+ ** Unit test for QueryAction
  **
  *******************************************************************************/
 class QueryActionTest
 {
 
    /*******************************************************************************
+    ** At the core level, there isn't much that can be asserted, as it uses the
+    ** mock implementation - just confirming that all of the "wiring" works.
     **
     *******************************************************************************/
    @Test
@@ -26,4 +29,4 @@ class QueryActionTest
       QueryResult result = new QueryAction().execute(request);
       assertNotNull(result);
    }
-}
\ No newline at end of file
+}
diff --git a/src/test/java/com/kingsrook/qqq/backend/core/actions/TableMetaDataActionTest.java b/src/test/java/com/kingsrook/qqq/backend/core/actions/TableMetaDataActionTest.java
index 68dd21a4..6a18da17 100644
--- a/src/test/java/com/kingsrook/qqq/backend/core/actions/TableMetaDataActionTest.java
+++ b/src/test/java/com/kingsrook/qqq/backend/core/actions/TableMetaDataActionTest.java
@@ -13,12 +13,14 @@ import static org.junit.jupiter.api.Assertions.assertThrows;
 
 
 /*******************************************************************************
+ ** Unit test for TableMetaDataAction
  **
  *******************************************************************************/
 class TableMetaDataActionTest
 {
 
    /*******************************************************************************
+    ** Test basic success case.
     **
     *******************************************************************************/
    @Test
@@ -36,6 +38,7 @@ class TableMetaDataActionTest
 
 
    /*******************************************************************************
+    ** Test exeption is thrown for the "not-found" case.
     **
     *******************************************************************************/
    @Test
@@ -48,4 +51,4 @@ class TableMetaDataActionTest
       });
    }
 
-}
\ No newline at end of file
+}
diff --git a/src/test/java/com/kingsrook/qqq/backend/core/adapters/CsvToQRecordAdapterTest.java b/src/test/java/com/kingsrook/qqq/backend/core/adapters/CsvToQRecordAdapterTest.java
index acba0fb1..1ff848a8 100644
--- a/src/test/java/com/kingsrook/qqq/backend/core/adapters/CsvToQRecordAdapterTest.java
+++ b/src/test/java/com/kingsrook/qqq/backend/core/adapters/CsvToQRecordAdapterTest.java
@@ -14,6 +14,7 @@ import static org.junit.jupiter.api.Assertions.fail;
 
 
 /*******************************************************************************
+ ** Unit test for CsvToQRecordAdapter
  **
  *******************************************************************************/
 class CsvToQRecordAdapterTest
@@ -219,4 +220,4 @@ class CsvToQRecordAdapterTest
    }
 
 
-}
\ No newline at end of file
+}
diff --git a/src/test/java/com/kingsrook/qqq/backend/core/adapters/JsonToQFieldMappingAdapterTest.java b/src/test/java/com/kingsrook/qqq/backend/core/adapters/JsonToQFieldMappingAdapterTest.java
index 425ca107..8b53e2a4 100644
--- a/src/test/java/com/kingsrook/qqq/backend/core/adapters/JsonToQFieldMappingAdapterTest.java
+++ b/src/test/java/com/kingsrook/qqq/backend/core/adapters/JsonToQFieldMappingAdapterTest.java
@@ -11,6 +11,7 @@ import static org.junit.jupiter.api.Assertions.fail;
 
 
 /*******************************************************************************
+ ** Unit test for JsonToQFieldMappingAdapter
  **
  *******************************************************************************/
 class JsonToQFieldMappingAdapterTest
@@ -149,4 +150,4 @@ class JsonToQFieldMappingAdapterTest
       fail("Didn't throw expected exception");
    }
 
-}
\ No newline at end of file
+}
diff --git a/src/test/java/com/kingsrook/qqq/backend/core/adapters/JsonToQRecordAdapterTest.java b/src/test/java/com/kingsrook/qqq/backend/core/adapters/JsonToQRecordAdapterTest.java
index 2882391f..46d8c953 100644
--- a/src/test/java/com/kingsrook/qqq/backend/core/adapters/JsonToQRecordAdapterTest.java
+++ b/src/test/java/com/kingsrook/qqq/backend/core/adapters/JsonToQRecordAdapterTest.java
@@ -9,6 +9,7 @@ import static org.junit.jupiter.api.Assertions.*;
 
 
 /*******************************************************************************
+ ** Unit test for JsonToQRecordAdapter
  **
  *******************************************************************************/
 class JsonToQRecordAdapterTest
@@ -147,4 +148,4 @@ class JsonToQRecordAdapterTest
       testExpectedToThrow("[ 1701 ]");
    }
 
-}
\ No newline at end of file
+}
diff --git a/src/test/java/com/kingsrook/qqq/backend/core/instances/QInstanceEnricherTest.java b/src/test/java/com/kingsrook/qqq/backend/core/instances/QInstanceEnricherTest.java
index cbcaab0a..d8b2514b 100644
--- a/src/test/java/com/kingsrook/qqq/backend/core/instances/QInstanceEnricherTest.java
+++ b/src/test/java/com/kingsrook/qqq/backend/core/instances/QInstanceEnricherTest.java
@@ -11,12 +11,14 @@ import static org.junit.jupiter.api.Assertions.assertNull;
 
 
 /*******************************************************************************
+ ** Unit test for QInstanceEnricher
  **
  *******************************************************************************/
 class QInstanceEnricherTest
 {
 
    /*******************************************************************************
+    ** Test that a table missing a label gets the default label applied (name w/ UC-first).
     **
     *******************************************************************************/
    @Test
@@ -32,6 +34,8 @@ class QInstanceEnricherTest
 
 
    /*******************************************************************************
+    ** Test that a table missing a label and a name doesn't NPE, but just keeps
+    ** the name & label both null.
     **
     *******************************************************************************/
    @Test
@@ -50,6 +54,7 @@ class QInstanceEnricherTest
 
 
    /*******************************************************************************
+    ** Test that a field missing a label gets the default label applied (name w/ UC-first)
     **
     *******************************************************************************/
    @Test
@@ -63,4 +68,4 @@ class QInstanceEnricherTest
       assertEquals("Id", idField.getLabel());
    }
 
-}
\ No newline at end of file
+}
diff --git a/src/test/java/com/kingsrook/qqq/backend/core/instances/QInstanceValidatorTest.java b/src/test/java/com/kingsrook/qqq/backend/core/instances/QInstanceValidatorTest.java
index 5ce4a536..2a9df46b 100644
--- a/src/test/java/com/kingsrook/qqq/backend/core/instances/QInstanceValidatorTest.java
+++ b/src/test/java/com/kingsrook/qqq/backend/core/instances/QInstanceValidatorTest.java
@@ -12,12 +12,14 @@ import static org.junit.jupiter.api.Assertions.fail;
 
 
 /*******************************************************************************
+ ** Unit test for QInstanceValidator.
  **
  *******************************************************************************/
 class QInstanceValidatorTest
 {
 
    /*******************************************************************************
+    ** Test a valid instance - should just pass
     **
     *******************************************************************************/
    @Test
@@ -29,6 +31,7 @@ class QInstanceValidatorTest
 
 
    /*******************************************************************************
+    ** Test an instane with null backends - should throw.
     **
     *******************************************************************************/
    @Test
@@ -50,6 +53,7 @@ class QInstanceValidatorTest
 
 
    /*******************************************************************************
+    ** Test an instane with empty map of backends - should throw.
     **
     *******************************************************************************/
    @Test
@@ -71,6 +75,7 @@ class QInstanceValidatorTest
 
 
    /*******************************************************************************
+    ** Test an instane with null tables - should throw.
     **
     *******************************************************************************/
    @Test
@@ -92,6 +97,7 @@ class QInstanceValidatorTest
 
 
    /*******************************************************************************
+    ** Test an instane with empty map of tables - should throw.
     **
     *******************************************************************************/
    @Test
@@ -113,6 +119,8 @@ class QInstanceValidatorTest
 
 
    /*******************************************************************************
+    ** Test an instane where a table and a backend each have a name attribute that
+    ** doesn't match the key that those objects have in the instance's maps - should throw.
     **
     *******************************************************************************/
    @Test
@@ -136,6 +144,7 @@ class QInstanceValidatorTest
 
 
    /*******************************************************************************
+    ** Test that if a table has a null backend, that it fails.
     **
     *******************************************************************************/
    @Test
@@ -157,6 +166,7 @@ class QInstanceValidatorTest
 
 
    /*******************************************************************************
+    ** Test that if a table specifies a backend that doesn't exist, that it fails.
     **
     *******************************************************************************/
    @Test
@@ -178,6 +188,8 @@ class QInstanceValidatorTest
 
 
    /*******************************************************************************
+    ** utility method for asserting that a specific reason string is found within
+    ** the list of reasons in the QInstanceValidationException.
     **
     *******************************************************************************/
    private void assertReason(String reason, QInstanceValidationException e)
@@ -185,4 +197,4 @@ class QInstanceValidatorTest
       assertNotNull(e.getReasons());
       assertTrue(e.getReasons().stream().anyMatch(s -> s.contains(reason)));
    }
-}
\ No newline at end of file
+}
diff --git a/src/test/java/com/kingsrook/qqq/backend/core/modules/QModuleDispatcherTest.java b/src/test/java/com/kingsrook/qqq/backend/core/modules/QModuleDispatcherTest.java
index 3f1849ea..9b4b3145 100644
--- a/src/test/java/com/kingsrook/qqq/backend/core/modules/QModuleDispatcherTest.java
+++ b/src/test/java/com/kingsrook/qqq/backend/core/modules/QModuleDispatcherTest.java
@@ -10,12 +10,14 @@ import static org.junit.jupiter.api.Assertions.*;
 
 
 /*******************************************************************************
+ ** Unit test for QModuleDispatcher
  **
  *******************************************************************************/
 class QModuleDispatcherTest
 {
 
    /*******************************************************************************
+    ** Test success case - a valid backend.
     **
     *******************************************************************************/
    @Test
@@ -28,6 +30,7 @@ class QModuleDispatcherTest
 
 
    /*******************************************************************************
+    ** Test failure case, a backend name that doesn't exist
     **
     *******************************************************************************/
    @Test
@@ -41,4 +44,4 @@ class QModuleDispatcherTest
       });
    }
 
-}
\ No newline at end of file
+}
diff --git a/src/test/java/com/kingsrook/qqq/backend/core/utils/CollectionUtilsTest.java b/src/test/java/com/kingsrook/qqq/backend/core/utils/CollectionUtilsTest.java
index 3de81d89..6cffbdea 100644
--- a/src/test/java/com/kingsrook/qqq/backend/core/utils/CollectionUtilsTest.java
+++ b/src/test/java/com/kingsrook/qqq/backend/core/utils/CollectionUtilsTest.java
@@ -16,6 +16,7 @@ import static org.junit.jupiter.api.Assertions.assertTrue;
 
 
 /*******************************************************************************
+ ** Unit test for CollectionUtils
  **
  *******************************************************************************/
 class CollectionUtilsTest
@@ -388,4 +389,4 @@ class CollectionUtilsTest
       assertEquals("?", CollectionUtils.getQuestionMarks(List.of(1)));
       assertEquals("?,?,?", CollectionUtils.getQuestionMarks(List.of(1, 2, 3)));
    }
-}
\ No newline at end of file
+}
diff --git a/src/test/java/com/kingsrook/qqq/backend/core/utils/ExceptionUtilsTest.java b/src/test/java/com/kingsrook/qqq/backend/core/utils/ExceptionUtilsTest.java
index 8ae2ae74..028b0474 100644
--- a/src/test/java/com/kingsrook/qqq/backend/core/utils/ExceptionUtilsTest.java
+++ b/src/test/java/com/kingsrook/qqq/backend/core/utils/ExceptionUtilsTest.java
@@ -8,6 +8,7 @@ import static org.junit.jupiter.api.Assertions.*;
 
 
 /*******************************************************************************
+ ** Unit test for ExceptionUtils
  **
  *******************************************************************************/
 class ExceptionUtilsTest
@@ -26,4 +27,4 @@ class ExceptionUtilsTest
       assertSame(target, ExceptionUtils.findClassInRootChain(new QException("decoy", target), QUserFacingException.class));
       assertNull(ExceptionUtils.findClassInRootChain(new QException("decoy", target), IllegalArgumentException.class));
    }
-}
\ No newline at end of file
+}
diff --git a/src/test/java/com/kingsrook/qqq/backend/core/utils/JsonUtilsTest.java b/src/test/java/com/kingsrook/qqq/backend/core/utils/JsonUtilsTest.java
index c52b322b..dd12e031 100644
--- a/src/test/java/com/kingsrook/qqq/backend/core/utils/JsonUtilsTest.java
+++ b/src/test/java/com/kingsrook/qqq/backend/core/utils/JsonUtilsTest.java
@@ -26,6 +26,7 @@ import static org.junit.jupiter.api.Assertions.fail;
 
 
 /*******************************************************************************
+ ** Unit test for JsonUtils.
  **
  *******************************************************************************/
 class JsonUtilsTest
@@ -269,4 +270,4 @@ class JsonUtilsTest
       assertEquals("age", qQueryFilter.getOrderBys().get(0).getFieldName());
       assertTrue(qQueryFilter.getOrderBys().get(0).getIsAscending());
    }
-}
\ No newline at end of file
+}
diff --git a/src/test/java/com/kingsrook/qqq/backend/core/utils/ListingHashTest.java b/src/test/java/com/kingsrook/qqq/backend/core/utils/ListingHashTest.java
index 231a6a70..c8f0ae06 100644
--- a/src/test/java/com/kingsrook/qqq/backend/core/utils/ListingHashTest.java
+++ b/src/test/java/com/kingsrook/qqq/backend/core/utils/ListingHashTest.java
@@ -14,6 +14,7 @@ import static org.junit.jupiter.api.Assertions.assertTrue;
 
 
 /*******************************************************************************
+ ** Unit test for ListingHash
  **
  *******************************************************************************/
 class ListingHashTest
@@ -329,4 +330,4 @@ class ListingHashTest
       assertTrue(values.contains(List.of("Apple", "Acorn")));
       assertTrue(values.contains(List.of("Ball")));
    }
-}
\ No newline at end of file
+}
diff --git a/src/test/java/com/kingsrook/qqq/backend/core/utils/StringUtilsTest.java b/src/test/java/com/kingsrook/qqq/backend/core/utils/StringUtilsTest.java
index 9e2dabc2..4e5aef14 100644
--- a/src/test/java/com/kingsrook/qqq/backend/core/utils/StringUtilsTest.java
+++ b/src/test/java/com/kingsrook/qqq/backend/core/utils/StringUtilsTest.java
@@ -10,6 +10,7 @@ import static org.junit.jupiter.api.Assertions.assertTrue;
 
 
 /*******************************************************************************
+ ** Unit test for StringUtils
  **
  *******************************************************************************/
 class StringUtilsTest
@@ -224,4 +225,4 @@ class StringUtilsTest
       assertEquals("", StringUtils.plural(1, "", "es"));
       assertEquals("es", StringUtils.plural(2, "", "es"));
    }
-}
\ No newline at end of file
+}
diff --git a/src/test/java/com/kingsrook/qqq/backend/core/utils/TestUtils.java b/src/test/java/com/kingsrook/qqq/backend/core/utils/TestUtils.java
index c7c257a3..6cb19579 100644
--- a/src/test/java/com/kingsrook/qqq/backend/core/utils/TestUtils.java
+++ b/src/test/java/com/kingsrook/qqq/backend/core/utils/TestUtils.java
@@ -9,11 +9,13 @@ import com.kingsrook.qqq.backend.core.model.metadata.QTableMetaData;
 
 
 /*******************************************************************************
+ ** Utility class for backend-core test classes
  **
  *******************************************************************************/
 public class TestUtils
 {
    /*******************************************************************************
+    ** Define the instance used in standard tests.
     **
     *******************************************************************************/
    public static QInstance defineInstance()
@@ -27,7 +29,7 @@ public class TestUtils
 
 
    /*******************************************************************************
-    **
+    ** Define the backend used in standard tests - using 'mock' type.
     *******************************************************************************/
    public static QBackendMetaData defineBackend()
    {
@@ -39,7 +41,7 @@ public class TestUtils
 
 
    /*******************************************************************************
-    **
+    ** Define the 'person' table used in standard tests.
     *******************************************************************************/
    public static QTableMetaData defineTablePerson()
    {