java.lang.NoClassDefFoundError: org/eclipse/sisu/equinox/embedder/internal/DefaultEquinoxEmbedder

[laeubi]

If I run tycho-snapshots I get the following error after the build succeeds (!)

[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  15.580 s
[INFO] Finished at: 2021-04-20T06:54:28+02:00
[INFO] ------------------------------------------------------------------------
Exception in thread "Thread-1" java.lang.NoClassDefFoundError: org/eclipse/sisu/equinox/embedder/internal/DefaultEquinoxEmbedder$2$1
	at org.eclipse.sisu.equinox.embedder.internal.DefaultEquinoxEmbedder$2.run(DefaultEquinoxEmbedder.java:207)
	at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.lang.ClassNotFoundException: org.eclipse.sisu.equinox.embedder.internal.DefaultEquinoxEmbedder$2$1
	at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:50)
	at org.codehaus.plexus.classworlds.realm.ClassRealm.unsynchronizedLoadClass(ClassRealm.java:271)
	at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:247)
	at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:239)
	... 2 more

[sravanlakkimsetti]

We are getting the following errors while running surefire tests

!ENTRY org.eclipse.ecf.provider.filetransfer 4 0 2021-04-20 07:55:30.072
!MESSAGE org.eclipse.core.runtime.Status[plugin=org.eclipse.ecf.provider.filetransfer;code=4;message=Warning: Platform proxy API not available;severity2;exception=java.lang.NoClassDefFoundError: org/eclipse/core/net/proxy/IProxyService;children=[]]
!STACK 0
java.lang.NoClassDefFoundError: org/eclipse/core/net/proxy/IProxyService
at org.eclipse.ecf.provider.filetransfer.retrieve.AbstractRetrieveFileTransfer.setupProxies(AbstractRetrieveFileTransfer.java:956)
at org.eclipse.ecf.provider.filetransfer.retrieve.AbstractRetrieveFileTransfer.sendRetrieveRequest(AbstractRetrieveFileTransfer.java:886)
at org.eclipse.ecf.provider.filetransfer.retrieve.MultiProtocolRetrieveAdapter.sendRetrieveRequest(MultiProtocolRetrieveAdapter.java:148)
at org.eclipse.equinox.internal.p2.transport.ecf.FileReader.sendRetrieveRequest(FileReader.java:454)
at org.eclipse.equinox.internal.p2.transport.ecf.FileReader.readInto(FileReader.java:384)
at org.eclipse.equinox.internal.p2.transport.ecf.RepositoryTransport.download(RepositoryTransport.java:107)
at org.eclipse.equinox.internal.p2.transport.ecf.RepositoryTransport.download(RepositoryTransport.java:166)
at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.handleRemoteIndexFile(AbstractRepositoryManager.java:730)
at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadIndexFile(AbstractRepositoryManager.java:724)
at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:666)
at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:110)
at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:105)
at org.eclipse.pde.internal.core.target.P2TargetUtils.getQueryableMetadata(P2TargetUtils.java:976)
at org.eclipse.pde.internal.core.target.IUBundleContainer.getRootIUs(IUBundleContainer.java:766)
at org.eclipse.pde.internal.core.target.P2TargetUtils.getRootIUs(P2TargetUtils.java:1439)
at org.eclipse.pde.internal.core.target.P2TargetUtils.resolveWithPlanner(P2TargetUtils.java:1003)
at org.eclipse.pde.internal.core.target.P2TargetUtils.synchronize(P2TargetUtils.java:827)
at org.eclipse.pde.internal.core.target.TargetDefinition.resolve(TargetDefinition.java:403)
at org.eclipse.pde.api.tools.internal.ApiAnalysisApplication.setBaseline(ApiAnalysisApplication.java:247)
at org.eclipse.pde.api.tools.internal.ApiAnalysisApplication.start(ApiAnalysisApplication.java:124)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203)
at org.eclipse.equinox.internal.app.AnyThreadAppLauncher.run(AnyThreadAppLauncher.java:30)
at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.lang.ClassNotFoundException: org.eclipse.core.net.proxy.IProxyService cannot be found by org.eclipse.ecf.provider.filetransfer_3.2.601.v20201025-0700
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:519)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:171)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
... 23 more

This particular service is provided by https://download.eclipse.org/eclipse/updates/4.20-I-builds/I20210418-1800/plugins/org.eclipse.core.net.linux.x86_64_1.2.400.v20190924-1023.jar

There is a problem in resolving this.Log

[sewe]

FYI, I git bisected this (in the interval bac9cea → 2d834d2) and came up with the following:

5feb9379522f3ab0f3cde5be88412cff8d085b2a is the first bad commit
commit 5feb9379522f3ab0f3cde5be88412cff8d085b2a
Author: Marc Miltenberger <Marc@Miltenberger.eu>
Date:   Mon Jun 19 20:45:29 2017 +0200

    Delete temporary directory after exit

:040000 040000 4170d3156140a44de07015a19a977c50bc0b6e02 1af9464f6a3a7bbf054b215c6997bde7877d0fb8 M	sisu-equinox

(Nb.: While the commit’s Date is 2017, the change was really committed by Mickael Istria on 12 April 2021.)

[mickaelistria]

Those issues do not seem to be so related. @sravanlakkimsetti can you please open a different ticket?

[sravanlakkimsetti]

Those issues do not seem to be so related. @sravanlakkimsetti can you please open a different ticket?

I believe both are same. If you see the log exact same error message is shown.
Exception in thread "Thread-1" java.lang.NoClassDefFoundError: org/eclipse/sisu/equinox/embedder/internal/DefaultEquinoxEmbedder$2$1
at org.eclipse.sisu.equinox.embedder.internal.DefaultEquinoxEmbedder$2.run(DefaultEquinoxEmbedder.java:207)
at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.lang.ClassNotFoundException: org.eclipse.sisu.equinox.embedder.internal.DefaultEquinoxEmbedder$2$1
at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:50)
at org.codehaus.plexus.classworlds.realm.ClassRealm.unsynchronizedLoadClass(ClassRealm.java:271)
at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:247)
at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:239)
... 2 more

I added contents from .log generated in that job.

[laeubi]

@sravanlakkimsetti as described above the error also occurs on sucessfull (!) builds the only issue seems that the stack is printed and the temp directory of course is not cleaned up.

[mickaelistria]

Thanks for the report, and @sewe for pointing to the right commit. Can you please create a commit that reverts that? Ideally, it would be best if you can write a test case to detect the issue, but it's fine if you can't build one now.

[sewe]

Can you please create a commit that reverts that? Ideally, it would be best if you can write a test case to detect the issue, but it's fine if you can't build one now.

I am afraid “you” is a bit ambiguous. I assume you mean @laeubi, the original reporter. Correct?

[laeubi]

@sewe If you can contribute here feel free to do so, I don't plan to work on this issue at the moment.

[mickaelistria]

Change was reverted as df64972 . This should be enough.