The HPI is left over from bygone years where we needed to support both green and native threading models. Some of the code has not been used since we transitioned to HotSpot in JDK 1.3. This bug requests that the HPI be removed from the jdk repo and for the JDK to no longer ship with libhpi.so/hpi.dll. This work can happen once the HotSpot changes for 6348631 are in a promoted build.