mattcasters commented on PR #7515:
URL: https://github.com/apache/hop/pull/7515#issuecomment-4961142663

   While building with `mvn -T6 clean install` I got a LOT of errors in the log 
   
   ```
   ...
   2026/07/13 18:10:41 - GUI -  at 
org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute 
(ThrowableCollector.java:74)
   2026/07/13 18:10:41 - GUI -  at 
org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$2
 (NodeTestTask.java:176)
   2026/07/13 18:10:41 - GUI -  at 
org.junit.jupiter.engine.descriptor.DynamicTestTestDescriptor.execute 
(DynamicTestTestDescriptor.java:37)
   2026/07/13 18:10:41 - GUI -  at 
org.junit.jupiter.engine.descriptor.DynamicTestTestDescriptor.execute 
(DynamicTestTestDescriptor.java:67)
   2026/07/13 18:10:41 - GUI -  at 
org.junit.jupiter.engine.execution.InvocationInterceptorChain.invoke 
(InvocationInterceptorChain.java:39)
   2026/07/13 18:10:41 - GUI -  at 
org.junit.jupiter.engine.execution.InvocationInterceptorChain.chainAndInvoke 
(InvocationInterceptorChain.java:47)
   2026/07/13 18:10:41 - GUI -  at 
org.junit.jupiter.engine.execution.InvocationInterceptorChain.proceed 
(InvocationInterceptorChain.java:66)
   2026/07/13 18:10:41 - GUI -  at 
org.junit.jupiter.engine.execution.InvocationInterceptorChain$InterceptedInvocation.proceed
 (InvocationInterceptorChain.java:99)
   2026/07/13 18:10:41 - GUI -  at 
org.junit.jupiter.engine.execution.InvocationInterceptorChain$InterceptorCall.lambda$ofVoid$0
 (InvocationInterceptorChain.java:80)
   2026/07/13 18:10:41 - GUI -  at 
org.junit.jupiter.engine.descriptor.DynamicTestTestDescriptor.lambda$execute$0 
(DynamicTestTestDescriptor.java:69)
   2026/07/13 18:10:41 - GUI -  at 
org.junit.jupiter.api.extension.InvocationInterceptor.interceptDynamicTest 
(InvocationInterceptor.java:189)
   2026/07/13 18:10:41 - GUI -  at 
org.junit.jupiter.engine.execution.InvocationInterceptorChain$ValidatingInvocation.proceed
 (InvocationInterceptorChain.java:124)
   2026/07/13 18:10:41 - GUI -  at 
org.junit.jupiter.engine.descriptor.DynamicTestTestDescriptor.lambda$toInvocation$0
 (DynamicTestTestDescriptor.java:76)
   2026/07/13 18:10:41 - GUI -  at 
org.apache.hop.ui.testing.DisabledGuiWidgetsTestBase.lambda$casesFor$0 
(DisabledGuiWidgetsTestBase.java:144)
   2026/07/13 18:10:41 - GUI -  at 
org.apache.hop.ui.testing.DisabledGuiWidgetsTestBase.disablingIsHarmless 
(DisabledGuiWidgetsTestBase.java:163)
   2026/07/13 18:10:41 - GUI -  at 
org.apache.hop.ui.testing.DisabledGuiWidgetsTestBase.buildToolbar 
(DisabledGuiWidgetsTestBase.java:327)
   2026/07/13 18:10:41 - GUI -  at 
org.apache.hop.ui.core.gui.GuiToolbarWidgets.createToolbarWidgets 
(GuiToolbarWidgets.java:119)
   2026/07/13 18:10:41 - GUI -  at 
org.apache.hop.ui.core.gui.GuiToolbarWidgets.lookupToolbarItemFilter 
(GuiToolbarWidgets.java:161)
   2026/07/13 18:10:41 - GUI -  at 
org.apache.hop.ui.core.gui.BaseGuiWidgets.findGuiPluginInstance 
(BaseGuiWidgets.java:96)
   2026/07/13 18:10:41 - GUI -  at java.lang.ClassLoader.loadClass 
(ClassLoader.java:526)
   2026/07/13 18:10:41 - GUI -  at 
jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass 
(ClassLoaders.java:188)
   2026/07/13 18:10:41 - GUI -  at 
jdk.internal.loader.BuiltinClassLoader.loadClass (BuiltinClassLoader.java:639)
   2026/07/13 18:10:41 - GUI -  at 
jdk.internal.loader.BuiltinClassLoader.loadClassOrNull 
(BuiltinClassLoader.java:651)
   2026/07/13 18:10:41 - GUI -  at java.lang.ClassLoader.getClassLoadingLock 
(ClassLoader.java:681)
   2026/07/13 18:10:41 - GUI -  at 
java.util.concurrent.ConcurrentHashMap.putIfAbsent (ConcurrentHashMap.java:1541)
   2026/07/13 18:10:41 - GUI -  at 
java.util.concurrent.ConcurrentHashMap.putVal (ConcurrentHashMap.java:1011)
   2026/07/13 18:10:41 - GUI - 
   2026/07/13 18:10:41 - GUI -     at 
org.apache.hop.ui.core.gui.BaseGuiWidgets.findGuiPluginInstance(BaseGuiWidgets.java:106)
   2026/07/13 18:10:41 - GUI -     at 
org.apache.hop.ui.core.gui.GuiToolbarWidgets.lookupToolbarItemFilter(GuiToolbarWidgets.java:161)
   2026/07/13 18:10:41 - GUI -     at 
org.apache.hop.ui.core.gui.GuiToolbarWidgets.createToolbarWidgets(GuiToolbarWidgets.java:119)
   2026/07/13 18:10:41 - GUI -     at 
org.apache.hop.ui.testing.DisabledGuiWidgetsTestBase.buildToolbar(DisabledGuiWidgetsTestBase.java:327)
   2026/07/13 18:10:41 - GUI -     at 
org.apache.hop.ui.testing.DisabledGuiWidgetsTestBase.disablingIsHarmless(DisabledGuiWidgetsTestBase.java:163)
   2026/07/13 18:10:41 - GUI -     at 
org.apache.hop.ui.testing.DisabledGuiWidgetsTestBase.lambda$casesFor$0(DisabledGuiWidgetsTestBase.java:144)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.jupiter.engine.descriptor.DynamicTestTestDescriptor.lambda$toInvocation$0(DynamicTestTestDescriptor.java:76)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.jupiter.engine.execution.InvocationInterceptorChain$ValidatingInvocation.proceed(InvocationInterceptorChain.java:124)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.jupiter.api.extension.InvocationInterceptor.interceptDynamicTest(InvocationInterceptor.java:189)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.jupiter.engine.descriptor.DynamicTestTestDescriptor.lambda$execute$0(DynamicTestTestDescriptor.java:69)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.jupiter.engine.execution.InvocationInterceptorChain$InterceptorCall.lambda$ofVoid$0(InvocationInterceptorChain.java:80)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.jupiter.engine.execution.InvocationInterceptorChain$InterceptedInvocation.proceed(InvocationInterceptorChain.java:99)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.jupiter.engine.execution.InvocationInterceptorChain.proceed(InvocationInterceptorChain.java:66)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.jupiter.engine.execution.InvocationInterceptorChain.chainAndInvoke(InvocationInterceptorChain.java:47)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.jupiter.engine.execution.InvocationInterceptorChain.invoke(InvocationInterceptorChain.java:39)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.jupiter.engine.descriptor.DynamicTestTestDescriptor.execute(DynamicTestTestDescriptor.java:67)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.jupiter.engine.descriptor.DynamicTestTestDescriptor.execute(DynamicTestTestDescriptor.java:37)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$2(NodeTestTask.java:176)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:74)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$1(NodeTestTask.java:166)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.Node.around(Node.java:138)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$0(NodeTestTask.java:164)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:74)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:163)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:116)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:36)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.NodeTestTask$DefaultDynamicTestExecutor.execute(NodeTestTask.java:268)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.NodeTestTask$DefaultDynamicTestExecutor.execute(NodeTestTask.java:246)
   2026/07/13 18:10:41 - GUI -     at 
java.base/java.util.Optional.ifPresent(Optional.java:178)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.jupiter.engine.descriptor.TestFactoryTestDescriptor.lambda$invokeTestMethod$0(TestFactoryTestDescriptor.java:125)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:74)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.jupiter.engine.descriptor.TestFactoryTestDescriptor.invokeTestMethod(TestFactoryTestDescriptor.java:112)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:157)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:70)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$2(NodeTestTask.java:176)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:74)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$1(NodeTestTask.java:166)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.Node.around(Node.java:138)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$0(NodeTestTask.java:164)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:74)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:163)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:116)
   2026/07/13 18:10:41 - GUI -     at 
java.base/java.util.ArrayList.forEach(ArrayList.java:1596)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:42)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$2(NodeTestTask.java:180)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:74)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$1(NodeTestTask.java:166)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.Node.around(Node.java:138)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$0(NodeTestTask.java:164)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:74)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:163)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:116)
   2026/07/13 18:10:41 - GUI -     at 
java.base/java.util.ArrayList.forEach(ArrayList.java:1596)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:42)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$2(NodeTestTask.java:180)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:74)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$1(NodeTestTask.java:166)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.Node.around(Node.java:138)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$0(NodeTestTask.java:164)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:74)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:163)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:116)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:36)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:52)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:58)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.launcher.core.EngineExecutionOrchestrator.executeEngine(EngineExecutionOrchestrator.java:246)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.launcher.core.EngineExecutionOrchestrator.failOrExecuteEngine(EngineExecutionOrchestrator.java:218)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:179)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:108)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:66)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:157)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:65)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:125)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.launcher.core.DelegatingLauncher.execute(DelegatingLauncher.java:58)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.launcher.core.InterceptingLauncher.lambda$execute$2(InterceptingLauncher.java:57)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.launcher.core.ClasspathAlignmentCheckingLauncherInterceptor.intercept(ClasspathAlignmentCheckingLauncherInterceptor.java:25)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.launcher.core.InterceptingLauncher.execute(InterceptingLauncher.java:56)
   2026/07/13 18:10:41 - GUI -     at 
org.junit.platform.launcher.core.DelegatingLauncher.execute(DelegatingLauncher.java:58)
   2026/07/13 18:10:41 - GUI -     at 
java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
   2026/07/13 18:10:41 - GUI -     at 
java.base/java.lang.reflect.Method.invoke(Method.java:580)
   2026/07/13 18:10:41 - GUI -     at 
org.apache.maven.surefire.api.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:125)
   2026/07/13 18:10:41 - GUI -     at 
org.apache.maven.surefire.junitplatform.LauncherAdapter.executeWithCancellationToken(LauncherAdapter.java:68)
   2026/07/13 18:10:41 - GUI -     at 
org.apache.maven.surefire.junitplatform.LauncherAdapter.execute(LauncherAdapter.java:54)
   2026/07/13 18:10:41 - GUI -     at 
org.apache.maven.surefire.junitplatform.JUnitPlatformProvider.execute(JUnitPlatformProvider.java:203)
   2026/07/13 18:10:41 - GUI -     at 
org.apache.maven.surefire.junitplatform.JUnitPlatformProvider.invokeAllTests(JUnitPlatformProvider.java:168)
   2026/07/13 18:10:41 - GUI -     at 
org.apache.maven.surefire.junitplatform.JUnitPlatformProvider.invoke(JUnitPlatformProvider.java:136)
   2026/07/13 18:10:41 - GUI -     at 
org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:385)
   2026/07/13 18:10:41 - GUI -     at 
org.apache.maven.surefire.booter.ForkedBooter.execute(ForkedBooter.java:162)
   2026/07/13 18:10:41 - GUI -     at 
org.apache.maven.surefire.booter.ForkedBooter.run(ForkedBooter.java:507)
   2026/07/13 18:10:41 - GUI -     at 
org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:495)
   2026/07/13 18:10:41 - GUI - Caused by: java.lang.NullPointerException
   2026/07/13 18:10:41 - GUI -     at 
java.base/java.util.concurrent.ConcurrentHashMap.putVal(ConcurrentHashMap.java:1011)
   2026/07/13 18:10:41 - GUI -     at 
java.base/java.util.concurrent.ConcurrentHashMap.putIfAbsent(ConcurrentHashMap.java:1541)
   2026/07/13 18:10:41 - GUI -     at 
java.base/java.lang.ClassLoader.getClassLoadingLock(ClassLoader.java:681)
   2026/07/13 18:10:41 - GUI -     at 
java.base/jdk.internal.loader.BuiltinClassLoader.loadClassOrNull(BuiltinClassLoader.java:651)
   2026/07/13 18:10:41 - GUI -     at 
java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:639)
   2026/07/13 18:10:41 - GUI -     at 
java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)
   2026/07/13 18:10:41 - GUI -     at 
java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526)
   2026/07/13 18:10:41 - GUI -     at 
org.apache.hop.ui.core.gui.BaseGuiWidgets.findGuiPluginInstance(BaseGuiWidgets.java:96)
   2026/07/13 18:10:41 - GUI -     ... 90 more
   ...
   ```
   


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