10 Replies Latest reply on Jun 12, 2012 6:16 PM by 943220

    Do you advise setting -XX:-UsePopCountInstruction to avoid JVM#7063674?


      Our project uses BDB JE 5.0.48 and 4.0.103.

      We are discussing the implications of [JVM defect 7063674|http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7063674] on our project. Whilst we have not encountered a defect that we can attribute to this bug, another team here (not using BDB JE) has been affected by this JVM issue, and this has caused us to sweep through our code and our dependencies. This sweep has prompted this question.

      We notice that BDB JE makes use of Integer.bitCount and BitSet.cardinality. Do you currently suggest use of the -XX:-UsePopCountInstruction at suggested by 7063674 on platforms affected by this issue?

      Kind regards, Keith Wall.