Xtext 2.40.0 is released

[cdietrich]

Hello Xtexters

Xtext 2.40.0 is released

https://download.eclipse.org/modeling/tmf/xtext/updates/releases/2.40.0
https://www.eclipse.org/downloads/download.php?file=/modeling/tmf/xtext/downloads/drops/2.40.0/tmf-xtext-Update-2.40.0.zip

and on maven central soon

Matching MWE can be found on

https://download.eclipse.org/modeling/emft/mwe/updates/releases/2.23.0
https://www.eclipse.org/downloads/download.php?file=/modeling/emft/mwe/downloads/drops/2.23.0/R202508230643/emft-mwe-2-lang-Update-2.23.0.zip

You can find the release notes at
https://eclipse.dev/Xtext/releasenotes.html#/releasenotes/2025/08/25/version-2-40-0

Happy Xtexting

[pvschubert]

Hi @cdietrich I have an issue with this release.

I raised an issue eclipse-platform/.github#264 (comment) already but was kindly asked to put it here - it is my first time here. Sorry.

The 'xtext.common.types.originalEditorSelector' extension from plug-in 'org.eclipse.xtext.common.types.shared' to the 'org.eclipse.ui.ide.editorAssociationOverride' extension point failed to load the editor association override class.
com.google.common.util.concurrent.ExecutionError: java.lang.NoClassDefFoundError: org/eclipse/jdt/debug/core/IJavaThread (occurred in org.eclipse.xtext.common.types.shared.SharedCommonTypesExecutableExtensionFactory)
com.google.common.util.concurrent.ExecutionError: java.lang.NoClassDefFoundError: org/eclipse/jdt/debug/core/IJavaThread

Have you got any idea what to do?

Regards,
Peter

[cdietrich]

i mean jdt.something

[pvschubert]

is debug.core in your tp?

Yes I checked if org.eclipse.jdt.debug is available

[cdietrich]

can you check in osgi console about the availablility and activatability of org.eclipse.jdt.debug?

[cdietrich]

at least tine timestamp looks wired for
2025-09
but i dont know when platform builds these

[cdietrich]

checked the update site is ok
can you provide the complete osgi log

[pvschubert]

Eclipse_Support_20260330.zip

Is this what you requested? I tried to collect the support information. Selecting all is too big (41 MB). Or what specific info do you need? Sorry, for me it is the first time being involved to that type of ticket.

[cdietrich]

i mean the error log
window show view error log (or the .log file in ws)

[cdietrich]

e.g.
i see

Caused by: org.osgi.framework.BundleException: Exception in org.eclipse.jdt.internal.debug.core.JDIDebugPlugin.start() of bundle org.eclipse.jdt.debug.
	at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:847)
	at org.eclipse.osgi.internal.framework.BundleContextImpl.start(BundleContextImpl.java:768)
	at org.eclipse.osgi.internal.framework.EquinoxBundle.startWorker0(EquinoxBundle.java:1066)
	at org.eclipse.osgi.internal.framework.EquinoxBundle$EquinoxModule.startWorker(EquinoxBundle.java:394)
	at org.eclipse.osgi.container.Module.doStart(Module.java:643)
	at org.eclipse.osgi.container.Module.start(Module.java:500)
	at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:528)
	at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:122)
	... 141 more
Caused by: java.lang.NoClassDefFoundError: com/sun/jdi/VMDisconnectedException
	at org.eclipse.jdt.internal.debug.core.JDIDebugPlugin.start(JDIDebugPlugin.java:326)
	at org.eclipse.osgi.internal.framework.BundleContextImpl$2.run(BundleContextImpl.java:826)
	at org.eclipse.osgi.internal.framework.BundleContextImpl$2.run(BundleContextImpl.java:1)
	at java.base/java.security.AccessController.doPrivileged(Unknown Source)
	at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:818)
	... 148 more
Caused by: java.lang.ClassNotFoundException: com.sun.jdi.VMDisconnectedException cannot be found by org.eclipse.jdt.debug_3.24.0.v20250729-0743
	at org.eclipse.osgi.internal.loader.BundleLoader.generateException(BundleLoader.java:567)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass0(BundleLoader.java:562)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:438)
	at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:195)
	at java.base/java.lang.ClassLoader.loadClass(Unknown Source)
	... 153 more

thats something to report back at platform

[cdietrich]

maybe you are using an old java or jre instead of jdk etc

[pvschubert]

Eclipse.log

[cdietrich]

this has the same

Caused by: org.osgi.framework.BundleException: Exception in org.eclipse.jdt.internal.debug.core.JDIDebugPlugin.start() of bundle org.eclipse.jdt.debug.
	at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:847)
	at org.eclipse.osgi.internal.framework.BundleContextImpl.start(BundleContextImpl.java:768)
	at org.eclipse.osgi.internal.framework.EquinoxBundle.startWorker0(EquinoxBundle.java:1066)
	at org.eclipse.osgi.internal.framework.EquinoxBundle$EquinoxModule.startWorker(EquinoxBundle.java:394)
	at org.eclipse.osgi.container.Module.doStart(Module.java:643)
	at org.eclipse.osgi.container.Module.start(Module.java:500)
	at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:528)
	at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:122)
	... 141 more
Caused by: java.lang.NoClassDefFoundError: com/sun/jdi/VMDisconnectedException
	at org.eclipse.jdt.internal.debug.core.JDIDebugPlugin.start(JDIDebugPlugin.java:326)
	at org.eclipse.osgi.internal.framework.BundleContextImpl$2.run(BundleContextImpl.java:826)
	at org.eclipse.osgi.internal.framework.BundleContextImpl$2.run(BundleContextImpl.java:1)
	at java.base/java.security.AccessController.doPrivileged(Unknown Source)
	at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:818)
	... 148 more
Caused by: java.lang.ClassNotFoundException: com.sun.jdi.VMDisconnectedException cannot be found by org.eclipse.jdt.debug_3.24.0.v20250729-0743
	at org.eclipse.osgi.internal.loader.BundleLoader.generateException(BundleLoader.java:567)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass0(BundleLoader.java:562)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:438)
	at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:195)
	at java.base/java.lang.ClassLoader.loadClass(Unknown Source)
	... 153 more

which is not xtext

[pvschubert]

Hi @cdietrich sorry for the delay providing the error log. I attached it and had to adjust it in some lines due to security infos to be hided. Hope it could help. I guess there is a general bug with the plugin installation although it was installed as a bundle with the whole rest. Where could I get a sole plugin package to install separately?
Eclipse.log