olingo-odata2-jpa-processor-ref-web fails to build on JDK 1.8

...
[INFO] olingo-odata2-jpa-processor-ref-web ............... FAILURE [0.794s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 20.595s
[INFO] Finished at: Tue Mar 31 10:42:50 CEST 2015
[INFO] Final Memory: 32M/183M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-remote-resources-plugin:1.4:process (default) on project olingo-odata2-jpa-processor-ref-web: Error rendering velocity resource. NullPointerException -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException
[ERROR] 
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR]   mvn <goals> -rf :olingo-odata2-jpa-processor-ref-web
...