FULL PRODUCT VERSION :
$ java -version
java version "1.8.0_45"
Java(TM) SE Runtime Environment (build 1.8.0_45-b14)
Java HotSpot(TM) 64-Bit Server VM (build 25.45-b02, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
Darwin MBP.fritz.box 14.4.0 Darwin Kernel Version 14.4.0: Thu May 28 11:35:04 PDT 2015; root:xnu-2782.30.5~1/RELEASE_X86_64 x86_64

A DESCRIPTION OF THE PROBLEM :
Process Annotations, if generated sources are already existing:

Note: Hibernate JPA 2 Static-Metamodel Generator 4.3.10.Final
An exception has occurred in the compiler (1.8.0_51). Please file a bug at the Java Developer Connection (http://java.sun.com/webapps/bugreport)  after checking the Bug Parade for duplicates. Include your program and the following diagnostic in your report.  Thank you.
java.lang.IllegalStateException: endPosTable already set
	at com.sun.tools.javac.util.DiagnosticSource.setEndPosTable(DiagnosticSource.java:136)
	at com.sun.tools.javac.util.Log.setEndPosTable(Log.java:350)
	at com.sun.tools.javac.main.JavaCompiler.parse(JavaCompiler.java:667)
	at com.sun.tools.javac.main.JavaCompiler.parseFiles(JavaCompiler.java:950)
	at com.sun.tools.javac.processing.JavacProcessingEnvironment$Round.<init>(JavacProcessingEnvironment.java:892)
	at com.sun.tools.javac.processing.JavacProcessingEnvironment$Round.next(JavacProcessingEnvironment.java:921)
	at com.sun.tools.javac.processing.JavacProcessingEnvironment.doProcessing(JavacProcessingEnvironment.java:1187)
[...] 
More stack trace elements.



REPRODUCIBILITY :
This bug can be reproduced always.