A multi-faceted language for the Java platform
It was discovered that there was a vulnerability within the Java serialization/deserialization process.
An attacker, by crafting a special serialized object, could execute arbitrary code.
There is no known workaround at this time.
Gentoo has discontinued support for Groovy. We recommend that users unmerge Groovy:
# emerge --unmerge "dev-java/groovy"