java.lang.ClassCastException: class o.e.w.c.c.i.i.ReferencedComponentXMIResourceImpl cannot be cast to class o.e.j.c.c.r.x.JptXmlResource

[fs-chris]

I'm getting the following ClassCastException when trying to change Maven settings.

eclipse.buildId=4.26.0.20221201-1200
java.version=17.0.5
java.vendor=Eclipse Adoptium
BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=de_DE
Framework arguments:  -product org.eclipse.epp.package.jee.product
Command-line arguments:  -os win32 -ws win32 -arch x86_64 -product org.eclipse.epp.package.jee.product

org.eclipse.m2e.core
Error
Thu Feb 02 08:47:56 CET 2023
Could not update project abc configuration

java.lang.ClassCastException: class org.eclipse.wst.common.componentcore.internal.impl.ReferencedComponentXMIResourceImpl cannot be cast to class org.eclipse.jpt.common.core.resource.xml.JptXmlResource (org.eclipse.wst.common.componentcore.internal.impl.ReferencedComponentXMIResourceImpl is in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @4febb6e6; org.eclipse.jpt.common.core.resource.xml.JptXmlResource is in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @8108420)
	at org.eclipse.jpt.common.core.internal.resource.xml.AbstractJptXmlResourceProvider.buildXmlResource(AbstractJptXmlResourceProvider.java:122)
	at org.eclipse.jpt.common.core.internal.resource.xml.AbstractJptXmlResourceProvider.getXmlResource(AbstractJptXmlResourceProvider.java:107)
	at org.eclipse.m2e.wtp.jpa.internal.configurators.JpaProjectConfigurator.configureFacets(JpaProjectConfigurator.java:136)
	at org.eclipse.m2e.wtp.jpa.internal.configurators.JpaProjectConfigurator.configure(JpaProjectConfigurator.java:110)
	at org.eclipse.m2e.core.project.configurator.AbstractLifecycleMapping.configure(AbstractLifecycleMapping.java:123)
	at org.eclipse.m2e.core.internal.project.ProjectConfigurationManager.lambda$6(ProjectConfigurationManager.java:494)
	at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.executeBare(MavenExecutionContext.java:364)
	at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:274)
	at org.eclipse.m2e.core.internal.project.ProjectConfigurationManager.updateProjectConfiguration(ProjectConfigurationManager.java:488)
	at org.eclipse.m2e.core.internal.project.ProjectConfigurationManager.lambda$4(ProjectConfigurationManager.java:416)
	at java.base/java.util.Collection.removeIf(Collection.java:576)
	at org.eclipse.m2e.core.internal.project.ProjectConfigurationManager.updateProjectConfiguration0(ProjectConfigurationManager.java:410)
	at org.eclipse.m2e.core.internal.project.ProjectConfigurationManager.lambda$3(ProjectConfigurationManager.java:340)
	at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.executeBare(MavenExecutionContext.java:364)
	at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:274)
	at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:213)
	at org.eclipse.m2e.core.internal.embedder.MavenImpl.execute(MavenImpl.java:1102)
	at org.eclipse.m2e.core.internal.project.ProjectConfigurationManager.updateProjectConfiguration(ProjectConfigurationManager.java:339)
	at org.eclipse.m2e.core.internal.project.ProjectConfigurationManager.updateProjectConfiguration(ProjectConfigurationManager.java:326)
	at org.eclipse.m2e.core.internal.project.ProjectConfigurationManager.updateProjectConfiguration(ProjectConfigurationManager.java:308)
	at org.eclipse.m2e.core.internal.project.ProjectConfigurationManager.updateProjectConfiguration(ProjectConfigurationManager.java:296)
	at org.eclipse.m2e.apt.ui.preferences.AnnotationProcessingSettingsPage$3.runInWorkspace(AnnotationProcessingSettingsPage.java:269)
	at org.eclipse.core.internal.resources.InternalWorkspaceJob.run(InternalWorkspaceJob.java:43)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)

[mcrose]

same problem, but when I import an existing project

Eclipse
Version: 2023-03 (4.27.0)
Build id: 20230309-1520

java.runtime.name=OpenJDK Runtime Environment
java.runtime.version=17.0.6+10
java.specification.name=Java Platform API Specification
java.specification.vendor=Oracle Corporation
java.specification.version=17
java.vendor=Eclipse Adoptium
java.vendor.url=https://adoptium.net/
java.vendor.url.bug=https://github.com/adoptium/adoptium-support/issues
java.vendor.version=Temurin-17.0.6+10
java.version=17.0.6
java.version.date=2023-01-17
java.vm.compressedOopsMode=32-bit
java.vm.info=mixed mode
java.vm.name=OpenJDK 64-Bit Server VM
java.vm.specification.name=Java Virtual Machine Specification
java.vm.specification.vendor=Oracle Corporation
java.vm.specification.version=17
java.vm.vendor=Eclipse Adoptium
java.vm.version=17.0.6+10

os.arch=amd64
os.name=Windows 11
os.version=10.0

[fbricon]

Try disabling the JPA configurator in the workspace settings:

Alternatively, you can add <m2e.jpa.activation>false</m2e.jpa.activation> in your pom properties section.

[mcrose]

Try disabling the JPA configurator in the workspace settings:

Alternatively, you can add <m2e.jpa.activation>false</m2e.jpa.activation> in your pom properties section.

worked!
thanks

I added to the pom.xml so I could removed later

[mhagnumdw]

Tks @fbricon

Try disabling the JPA configurator in the workspace settings

What is lost by this?

Is there any plan to support Jakarta Persistence 3.0?

[fbricon]

The configurator automatically sets the JPA Facet. Without it you'd have to do it manually.

I haven't checked JPA support in Eclipse in a while. I don't know if 3.0 is supported, you need to ask in https://github.com/eclipse-dali/webtools.dali