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In the heapdump of https://github.com/eclipse-platform/eclipse.platform.releng.aggregator/pull/1612 most memory was hold by org.eclipse.core.internal.resources.Workspace.tree. VisualVM: ![image](https://github.com/eclipse-platform/eclipse.platform/assets/51790620/3f4dc0c2-af0e-497a-823c-9992e715b65b) ![image](https://github.com/eclipse-platform/eclipse.platform/assets/51790620/04b8f220-9dc7-42a1-b72f-b646c68a0f74) JDKMC: ![image](https://github.com/eclipse-platform/eclipse.platform/assets/51790620/e099ae0c-18a1-44f8-ba9e-08155f5984bc) Workspace.tree is meant to store the state of the Workspace. It does so by...

``` java.lang.IllegalStateException: Conflicting handlers: {[ActionHandler(org.eclipse.compare.contentmergeviewer.TextMergeViewer$28@27f57e94), for 'org.eclipse.compare.selectPreviousChange', in PartImpl (org.eclipse.e4.ui.compatibility.editor) removeOnHide org.eclipse.compare.CompareEditorContext, activeWhen=ActivePartExpression(org.eclipse.compare.internal.CompareEditor@42728c69), active=true, sourcePriority=1048576, participating=true]} vs {[ActionHandler(org.eclipse.compare.contentmergeviewer.TextMergeViewer$28@74d362da), for 'org.eclipse.compare.selectPreviousChange', in PartImpl (org.eclipse.e4.ui.compatibility.editor) removeOnHide org.eclipse.compare.CompareEditorContext, activeWhen=ActivePartExpression(org.eclipse.compare.internal.CompareEditor@42728c69), active=true, sourcePriority=1048576, participating=true]} in:...

bug

If I have compare editors open and move around in the Git history I frequently get the following NPE. I assume the input object for the compare editor changed and...

## Current Situation The `DefaultHelpUI` has a regression from [Bug 533828](https://bugs.eclipse.org/bugs/show_bug.cgi?id=533828). While the `displayContext(IContext, int, int, boolean)` method allowed to show contents according to the `IContext` passed to the method,...

regression

https://download.eclipse.org/eclipse/downloads/drops4/I20220418-1800/testresults/html/org.eclipse.debug.tests_ep424I-unit-cen64-gtk3-java17_linux.gtk.x86_64_17.html org.eclipse.debug.tests.breakpoint.SerialExecutorTest | testJoin ailed on run 67 expected: but was: java.lang.AssertionError: failed on run 67 expected: but was: at org.junit.Assert.fail(Assert.java:89) at org.junit.Assert.failNotEquals(Assert.java:835) at org.junit.Assert.assertEquals(Assert.java:647) at org.eclipse.debug.tests.breakpoint.SerialExecutorTest.testJoin(SerialExecutorTest.java:158) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)...

test

If I run a Junit test it is shown in the JUnit view and I can rerun / debug/ .. it. But once I restart eclipse this is gone, so...

test

I was wondering, how can I debug this test, does anyone know? I noticed the test runs in a separate process (`org.eclipse.core.tests.session.SessionTestRunner.launch(Setup)` calls `setup.run()`) but I couldn't figure out how...

test

https://download.eclipse.org/eclipse/downloads/drops4/I20220530-0600/testresults/html/org.eclipse.ant.tests.ui_ep424I-unit-win32-java11_win32.win32.x86_64_11.html testRuntimeProperties | Failure | Did not find property: AAAjunit.framework.AssertionFailedError: Did not find property: AAAat junit.framework.Assert.fail(Assert.java:57)at junit.framework.Assert.assertTrue(Assert.java:22)at junit.framework.Assert.assertNotNull(Assert.java:256)at junit.framework.TestCase.assertNotNull(TestCase.java:399)at org.eclipse.ant.tests.ui.debug.PropertyTests.assertProperty(PropertyTests.java:146)at org.eclipse.ant.tests.ui.debug.PropertyTests.runtimeProperties(PropertyTests.java:129)at org.eclipse.ant.tests.ui.debug.PropertyTests.testRuntimeProperties(PropertyTests.java:106)at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.base/java.lang.reflect.Method.invoke(Method.java:566)at junit.framework.TestCase.runTest(TestCase.java:177)at junit.framework.TestCase.runBare(TestCase.java:142)at org.eclipse.ant.tests.ui.testplugin.AbstractAntUITest.runBare(AbstractAntUITest.java:132)at...

Windows
Ant
test

See - https://download.eclipse.org/eclipse/downloads/drops4/I20230823-0600/testResults.php - https://download.eclipse.org/eclipse/downloads/drops4/I20230823-0600/logs.php#console - https://download.eclipse.org/eclipse/downloads/drops4/I20230823-0600/testresults/ep429I-unit-cen64-gtk3-java20_linux.gtk.x86_64_20/org.eclipse.core.tests.resources.AutomatedResourceTests.txt The first hang dump is : ``` !ENTRY org.eclipse.core.tests.resources 1 0 2023-08-23 14:10:13.099 !MESSAGE [test1] setUp !SESSION 2023-08-23 14:10:14.024 ----------------------------------------------- eclipse.buildId=4.29.0.I20230823-0600 java.version=20 java.vendor=Oracle...

bug
test

The test case `org.eclipse.core.tests.resources.CharsetTest.testDeltasContainer` randomly fails, e.g. https://github.com/eclipse-platform/eclipse.platform/pull/583/checks?check_run_id=15291909544 ``` Verifier has not yet been given a resource delta java.lang.AssertionError: Verifier has not yet been given a resource delta at org.junit.Assert.fail(Assert.java:89)...

test