broken Wicket build

Hi,

When trying to build the latest Apache Wicket Git repository, I get this
error:

[ERROR] Failed to execute goal org.codehaus.mojo:clirr-maven-
plugin:2.6.1:check (clirr-check) on project wicket-util: Execution
clirr-check of goal org.codehaus.mojo:clirr-maven-plugin:2.6.1:check
failed: Invalid byte tag in constant pool: 15 -> [Help 1]

It looks that there is an API break. I use Maven 3.2.1 3.1.1 and OpenJDK
1.6.32 1.7.55 as well as Oracle Java 8.11 on Debian Linux Wheezy.

Any help is appreciated.

Regards,

Pierre