[merks]

• Don't exclude com.genuitec.eclipse.theming.core.feature.feature.group version 2024.4.0.202412101111.
• The current update site serves 2025.2.0.202509301431

[merks]

@vogella

FYI, installing darkest dark theme

in the 2026-09 release, results in an IDE that won't start, with this in the log:

!ENTRY org.eclipse.ui 2 0 2026-10-17 13:43:53.176
!MESSAGE Warnings while parsing the images from the 'org.eclipse.ui.commandImages' extension point.
!SUBENTRY 1 org.eclipse.ui 2 0 2026-10-17 13:43:53.176
!MESSAGE Cannot bind to an undefined command: plug-in='com.genuitec.eclipse.theming.ui', id='com.genuitec.myeclipse.help.darktheme.commandid'

!ENTRY org.eclipse.osgi 4 0 2026-10-17 13:43:53.370
!MESSAGE Application error
!STACK 1
java.lang.NoClassDefFoundError: org/eclipse/e4/ui/css/swt/engine/AbstractCSSSWTEngineImpl
	at org.eclipse.e4.ui.css.swt.internal.theme.ThemeEngineManager.getCSSSWTEngine(ThemeEngineManager.java:51)
	at org.eclipse.e4.ui.css.swt.internal.theme.ThemeEngineManager.getEngineForDisplay(ThemeEngineManager.java:40)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createThemeEngine(PartRenderingEngine.java:1406)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.initializeStyling(PartRenderingEngine.java:1283)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1055)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1051)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153)
	at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:680)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:339)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:583)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:173)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:193)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:219)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:149)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:115)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:467)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:298)
	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
	at java.base/java.lang.reflect.Method.invoke(Method.java:565)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:615)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:563)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1415)
Caused by: java.lang.ClassNotFoundException: org.eclipse.e4.ui.css.swt.engine.AbstractCSSSWTEngineImpl cannot be found by org.eclipse.e4.ui.css.swt_0.17.100.v20260730-1116
	at org.eclipse.osgi.internal.loader.BundleLoader.generateException(BundleLoader.java:570)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass0(BundleLoader.java:564)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:439)
	at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:195)
	at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:490)
	... 23 more

The same is true for 2026-12 staging.

Goodness knows what dark magic is being invoked. 😞

[github-actions]

Test Results

   867 files  ±0     867 suites  ±0   47m 21s ⏱️ - 12m 47s
 8 465 tests ±0   8 223 ✅ ±0  242 💤 ±0  0 ❌ ±0 
21 273 runs  ±0  20 590 ✅ ±0  683 💤 ±0  0 ❌ ±0 

Results for commit 99206c5. ± Comparison against base commit 3faf11c.