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Eclipse on Java 13 vs Annotations [message #1818132]

Fri, 06 December 2019 17:10

Eclipse User

We are trying to switch all our work to be done on Java 13.
I've run into a problem while running Eclipse on Java 13.
We use the Velocity Annotation processor to generate code.
When Eclipse runs the plugin, it is throwing a:
java.lang.NoClassDefFoundError: javax/xml/bind/JAXBException
...
at org.eclipse.jdt.apt.core.internal.ClassServiceFactory.newInstance(ClassServiceFactory.java:30)
at org.eclipse.jdt.internal.apt.pluggable.core.dispatch.IdeAnnotationProcessorManager.discoverNextProcessor(IdeAnnotationProcessorManager.java:96)
at org.eclipse.jdt.internal.compiler.apt.dispatch.RoundDispatcher.round(RoundDispatcher.java:119)
at org.eclipse.jdt.internal.compiler.apt.dispatch.BaseAnnotationProcessorManager.processAnnotations(BaseAnnotationProcessorManager.java:171)
at org.eclipse.jdt.internal.apt.pluggable.core.dispatch.IdeAnnotationProcessorManager.processAnnotations(IdeAnnotationProcessorManager.java:138)
at org.eclipse.jdt.internal.compiler.Compiler.processAnnotations(Compiler.java:934)

Since the java 13 runtime no longer includes the JAXB classes, it appears that Eclipse will need to be updated to include the relevant .jar.
The .jar is already in our Plugin project, but it appears that Eclipse is referencing it outside of our project.

Any ideas for a workaround? I haven't seen a good way to add the jaxb-api-2.3.1.jar file to the eclipse classpath.

Re: Eclipse on Java 13 vs Annotations [message #1818134 is a reply to message #1818132]

Fri, 06 December 2019 18:23

Eclipse User

I'm beginning to suspect that something is broken in Eclipse 2019-03 Annotation processing.
I've switch Eclipse back to Java 8, and our project, and out annotation plugin - and it still fails, though with a different exception:
java.lang.Exception: java.lang.NoClassDefFoundError: org/apache/velocity/context/Context
at org.eclipse.jdt.internal.compiler.apt.dispatch.RoundDispatcher.handleProcessor(RoundDispatcher.java:172)
at org.eclipse.jdt.internal.compiler.apt.dispatch.RoundDispatcher.round(RoundDispatcher.java:124)
at org.eclipse.jdt.internal.compiler.apt.dispatch.BaseAnnotationProcessorManager.processAnnotations(BaseAnnotationProcessorManager.java:171)
at org.eclipse.jdt.internal.apt.pluggable.core.dispatch.IdeAnnotationProcessorManager.processAnnotations(IdeAnnotationProcessorManager.java:138)
at org.eclipse.jdt.internal.compiler.Compiler.processAnnotations(Compiler.java:934)

That class is in one of the .jar files our annotation plugin uses.

Re: Eclipse on Java 13 vs Annotations [message #1818152 is a reply to message #1818134]

Sun, 08 December 2019 23:18

Eclipse User

Looks like a bug to me.. Can you raise bug please?

Re: Eclipse on Java 13 vs Annotations [message #1818730 is a reply to message #1818152]

Wed, 25 December 2019 02:40

Eclipse User

How can solve bug?

Re: Eclipse on Java 13 vs Annotations [message #1818733 is a reply to message #1818730]

Wed, 25 December 2019 07:40

Eclipse User

Hi,

Have you tried Eclipse 2019-12 (this release supports Java 13 ).

Regards.

Re: Eclipse on Java 13 vs Annotations [message #1818734 is a reply to message #1818132]

Wed, 25 December 2019 07:52

Eclipse User

If you are using Apache Maven

Add this to the pom:

<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>2.3.1</version>
</dependency>

Re: Eclipse on Java 13 vs Annotations [message #1818779 is a reply to message #1818733]

Sat, 28 December 2019 01:52

Eclipse User

Thanks for sharing the article link, It will be helpful for me.

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