Handle null table labels (probably only happens in test, but 🤷)

qqq-backend-core/src/main/java/com/kingsrook/qqq/backend/core/utils/ObjectUtils.java

@@ -0,0 +1,51 @@
+/*
+ * QQQ - Low-code Application Framework for Engineers.
+ * Copyright (C) 2021-2023.  Kingsrook, LLC
+ * 651 N Broad St Ste 205 # 6917 | Middletown DE 19709 | United States
+ * contact@kingsrook.com
+ * https://github.com/Kingsrook/
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.kingsrook.qqq.backend.core.utils;
+
+
+/*******************************************************************************
+ **
+ *******************************************************************************/
+public class ObjectUtils
+{
+
+   /*******************************************************************************
+    ** A varargs version of Objects.requireNonNullElse
+    *******************************************************************************/
+   public static <T> T requireNonNullElse(T... objects)
+   {
+      if(objects == null)
+      {
+         throw (new NullPointerException("null objects array as input"));
+      }
+
+      for(T object : objects)
+      {
+         if(object != null)
+         {
+            return (object);
+         }
+      }
+
+      throw (new NullPointerException("all null objects"));
+   }
+}

qqq-backend-core/src/test/java/com/kingsrook/qqq/backend/core/utils/ObjectUtilsTest.java

@@ -0,0 +1,50 @@
+/*
+ * QQQ - Low-code Application Framework for Engineers.
+ * Copyright (C) 2021-2023.  Kingsrook, LLC
+ * 651 N Broad St Ste 205 # 6917 | Middletown DE 19709 | United States
+ * contact@kingsrook.com
+ * https://github.com/Kingsrook/
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.kingsrook.qqq.backend.core.utils;
+
+
+import org.junit.jupiter.api.Test;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+
+/*******************************************************************************
+ ** Unit test for ObjectUtils
+ *******************************************************************************/
+class ObjectUtilsTest
+{
+
+   /*******************************************************************************
+    **
+    *******************************************************************************/
+   @Test
+   void test()
+   {
+      assertThatThrownBy(() -> ObjectUtils.requireNonNullElse(null)).isInstanceOf(NullPointerException.class);
+      assertThatThrownBy(() -> ObjectUtils.requireNonNullElse(null, null)).isInstanceOf(NullPointerException.class);
+      assertThatThrownBy(() -> ObjectUtils.requireNonNullElse(null, null, null)).isInstanceOf(NullPointerException.class);
+      assertEquals("a", ObjectUtils.requireNonNullElse("a", "b"));
+      assertEquals("b", ObjectUtils.requireNonNullElse(null, "b", "c"));
+      assertEquals("c", ObjectUtils.requireNonNullElse(null, null, "c"));
+   }
+
+}

qqq-middleware-api/src/main/java/com/kingsrook/qqq/api/actions/GenerateOpenApiSpecAction.java

@@ -76,6 +76,7 @@ import com.kingsrook.qqq.backend.core.model.metadata.tables.Capability;
 import com.kingsrook.qqq.backend.core.model.metadata.tables.QTableMetaData;
 import com.kingsrook.qqq.backend.core.utils.CollectionUtils;
 import com.kingsrook.qqq.backend.core.utils.JsonUtils;
+import com.kingsrook.qqq.backend.core.utils.ObjectUtils;
 import com.kingsrook.qqq.backend.core.utils.StringUtils;
 import com.kingsrook.qqq.backend.core.utils.YamlUtils;
 import com.kingsrook.qqq.backend.core.utils.collections.ListBuilder;
@@ -169,7 +170,7 @@ public class GenerateOpenApiSpecAction extends AbstractQActionFunction<GenerateO
       // foreach table //
       ///////////////////
       List<QTableMetaData> tables = new ArrayList<>(qInstance.getTables().values());
-      tables.sort(Comparator.comparing(t -> t.getLabel()));
+      tables.sort(Comparator.comparing(t -> ObjectUtils.requireNonNullElse(t.getLabel(), t.getName(), "")));
       for(QTableMetaData table : tables)
       {
          String tableName = table.getName();