Cobertura ExceptionInInitializerError with Java 1.6.0_14

I ran into a problem running Cobertura via Maven with Java 1.6.0_14 and version 2.2 of the cobertura-maven-plugin.

Basically, every class, whether it be a Java or Groovy, was reported to have 0% coverage. The exception I found in the build log:

Results :

Tests run: 31, Failures: 0, Errors: 0, Skipped: 0

Exception in thread "Thread-0" java.lang.ExceptionInInitializerError
        at java.io.File.deleteOnExit(File.java:939)
        at net.sourceforge.cobertura.util.FileLocker.(FileLocker.java:80)
        at net.sourceforge.cobertura.coveragedata.ProjectData.saveGlobalProjectData(ProjectData.java:230)
        at net.sourceforge.cobertura.coveragedata.SaveTimer.run(SaveTimer.java:31)
        at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.IllegalStateException: Shutdown in progress
        at java.lang.Shutdown.add(Shutdown.java:62)
        at java.lang.System$2.registerShutdownHook(System.java:1146)
        at java.io.DeleteOnExitHook.(DeleteOnExitHook.java:20)
        ... 5 more

Anyone who runs into a similar problem can resolve it by upgrading to version 2.3 of the plugin which uses Cobertura 1.9.2. Upgrading to 1.9.2 would likely resolve the issue for non-Maven users too.