EOFException: Unable to read JavaModelManager nonChainingJarsCache file

[Eskibear]

Unable to read JavaModelManager nonChainingJarsCache file.

java.io.EOFException
        ...(DataInputStream.java:397)
	at org.eclipse.jdt.internal.core.JavaModelManager.loadClasspathListCache(JavaModelManager.java:3498)
	at org.eclipse.jdt.internal.core.JavaModelManager.<init>(JavaModelManager.java:1777)
	at org.eclipse.jdt.internal.core.JavaModelManager.<clinit>(JavaModelManager.java:1206)
	at org.eclipse.jdt.core.JavaCore.start(JavaCore.java:6439)
	at org.eclipse.osgi.internal.framework.BundleContextImpl$2.run(BundleContextImpl.java:813)
	at org.eclipse.osgi.internal.framework.BundleContextImpl$2.run(BundleContextImpl.java:1)
	at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:805)
	at org.eclipse.osgi.internal.framework.BundleContextImpl.start(BundleContextImpl.java:762)
	at org.eclipse.osgi.internal.framework.EquinoxBundle.startWorker0(EquinoxBundle.java:1032)
	at org.eclipse.osgi.internal.framework.EquinoxBundle$EquinoxModule.startWorker(EquinoxBundle.java:371)
	at org.eclipse.osgi.container.Module.doStart(Module.java:605)
	at org.eclipse.osgi.container.Module.start(Module.java:468)
	at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:513)
	at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:117)
	at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:570)
	at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:335)
	at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:397)
	at org.eclipse.osgi.internal.loader.sources.SingleSourcePackage.loadClass(SingleSourcePackage.java:41)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass0(BundleLoader.java:484)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:416)
	at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:168)
	at org.eclipse.osgi.internal.framework.BundleContextImpl.loadBundleActivator(BundleContextImpl.java:796)
	at org.eclipse.osgi.internal.framework.BundleContextImpl.start(BundleContextImpl.java:748)
	at org.eclipse.osgi.internal.framework.EquinoxBundle.startWorker0(EquinoxBundle.java:1032)
	at org.eclipse.osgi.internal.framework.EquinoxBundle$EquinoxModule.startWorker(EquinoxBundle.java:371)
	at org.eclipse.osgi.container.Module.doStart(Module.java:605)
	at org.eclipse.osgi.container.Module.start(Module.java:468)
	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel$2.run(ModuleContainer.java:1847)
	at org.eclipse.osgi.internal.framework.EquinoxContainerAdaptor$1$1.execute(EquinoxContainerAdaptor.java:136)
	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.incStartLevel(ModuleContainer.java:1840)
	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.incStartLevel(ModuleContainer.java:1783)
	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.doContainerStartLevel(ModuleContainer.java:1745)
	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.dispatchEvent(ModuleContainer.java:1667)
	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.dispatchEvent(ModuleContainer.java:1)
	at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:234)
	at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:345

[testforstephen]

I got this exception once when I restarted VS Code with spring-petclinic project, but JLS still works well. This exception seems not a fatal exception.

[Eskibear]

Every time we ship a new version of vscode-java, there's a peak of this error.

[testforstephen]

This error occurs mainly in Windows platform. The probability in macOS and linux is quite small.

[github-actions]

Hi @Eskibear, I'm an AI Support assistant here to help with your issue. While the team reviews your request, I wanted to provide some possible tips and documentation that might help you in the meantime.

The EOFException in JavaModelManager.loadClasspathListCache usually means the cache file was truncated or corrupted. Suggestions:

• Delete or reset the JDT cache:
  • Remove ${workspace}/.metadata/.plugins/org.eclipse.jdt.core/nonChainingJarsCache (and optionally the entire org.eclipse.jdt.core folder) then restart your IDE.
• Launch Eclipse/VS Code with a clean workspace:
  • For Eclipse: add the -clean argument to force a full rebuild of plugin caches.
• Verify there are no disk-space or permission issues on the workspace folder.
• If you’re on an older Eclipse/JDTLS version, consider upgrading to pick up cache-handling fixes.

Other references with low confidence

• Unsupported class file major version 61
  Describes a class-file version mismatch in JDTLS, not directly related to cache reads.
  Unsupported class file major version 61 eclipse-jdtls/eclipse.jdt.ls#3174

• Cannot import Apache Iceberg project
  Shows a ZipFile stacktrace in JavaModelManager but for JAR reading, not cache.
  Cannot import Apache Iceberg project redhat-developer/vscode-java#3775

The team will respond to your issue shortly. I hope these suggestions are helpful in the meantime. If this comment helped you, please give it a 👍. If the suggestion was not helpful or incorrect, please give it a 👎. Your feedback helps us improve!

[Eskibear]

stale