Can't re-build project without Maven "clean" phase

[wodzuu]

How to reproduce

1. run mvn clean package
2. run mvn package

Expected behaviour
The second command succeeds

Actual behaviour
The command execution fails with error message

[ERROR] Failed to execute goal com.ethlo.persistence.tools:eclipselink-maven-plugin:3.0.2:modelgen (modelgen) on project security: Processing failed: 
[ERROR] Note: Hibernate JPA 2 Static-Metamodel Generator 6.2.0.CR4
[ERROR] warning: Unable to parse persistence.xml: Unable to perform unmarshalling at line number 0 and column 0. Message: null
[ERROR] error: Problem with Filer: Attempt to recreate a file for type com.my.Entity_

Workaround
Include the clean phase each time you build the project

[ethlo]

Unfortunately this seems to be a bug/limitation in the Hibernate library.

[claudioweiler]

This breaks incremental builds also:

Failed to execute mojo com.ethlo.persistence.tools:eclipselink-maven-plugin:3.0.2:modelgen {execution: generate-jpa-metamodels} (com.ethlo.persistence.tools:eclipselink-maven-plugin:3.0.2:modelgen:generate-jpa-metamodels:generate-sources)

org.eclipse.core.runtime.CoreException: Failed to execute mojo com.ethlo.persistence.tools:eclipselink-maven-plugin:3.0.2:modelgen {execution: generate-jpa-metamodels}
	at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.executeMojo(MavenExecutionContext.java:340)
	at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.lambda$0(MavenExecutionContext.java:291)
	at ...
	at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:300)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)

Caused by: org.apache.maven.plugin.MojoExecutionException: Processing failed: 
Note: Hibernate JPA 2 Static-Metamodel Generator 6.2.0.CR4
error: Problem with Filer: Attempt to recreate a file for type ...
	at com.ethlo.persistence.tools.eclipselink.EclipselinkModelGenMojo.execute(EclipselinkModelGenMojo.java:182)
	at ...
	... 32 more

Hibernate says this is a javac behavior:
https://discourse.hibernate.org/t/hibernate-jpamodelgen-error-diagnostic-error-problem-with-filer-attempt-to-recreate-a-file-for-type/6624/7

Don't know where javac enters this, this is annotation processor, right?

But, why this works with 2.X versions and not with 3.X versions?

[claudioweiler]

Workaround doesn't work for run configuration ("Run As" context menu).

Default Maven run configurations do not include "clean" goal.

Custom run configurations with "clean" goal gets race conflict with Eclipse incremental build.