[infinispan-issues] [JBoss JIRA] (ISPN-2237) ConcurrentMapFactory does not allow use of V8 maps with Sun JDK 6

[Robert Stupp (JIRA)]

Robert Stupp created ISPN-2237:
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             Summary: ConcurrentMapFactory does not allow use of V8 maps with Sun JDK 6
                 Key: ISPN-2237
                 URL: https://issues.jboss.org/browse/ISPN-2237
             Project: Infinispan
          Issue Type: Bug
    Affects Versions: 5.1.6.FINAL
            Reporter: Robert Stupp
            Assignee: Mircea Markus


The implementation in ConcurrentMapFactory checks for existance of a Sun JVM private class. But although a Sun JDK/JRE 6 is used, the check fails (wrong class com.sun.unsafe.Unsafe instead of sun.misc.Unsafe).

Sould use sun.misc.Unsafe

{noformat}
   static {
      boolean sunIncompatibleJvm;
      boolean jdk8;
      boolean allowExperimentalMap = Boolean.getBoolean("infinispan.unsafe.allow_jdk8_chm");

      try {
         Class.forName("com.sun.unsafe.Unsafe");
         sunIncompatibleJvm = false;
      } catch (ClassNotFoundException e) {
         sunIncompatibleJvm = true;
      }
      
      try {
         Class.forName("java.util.concurrent.atomic.LongAdder");
         jdk8 = true;
      } catch (ClassNotFoundException e) {
         jdk8 = false;
      }

      if (jdk8 || sunIncompatibleJvm || !allowExperimentalMap)
         MAP_CREATOR = new JdkConcurrentMapCreator();
      else
         MAP_CREATOR = new BackportedV8ConcurrentMapCreator();
   }
{noformat}



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