JDK 64-Bit Server VM warning: Max heap size too large for Compressed Oops

Solution Verified - Updated -

Issue

  • I'm getting this error below when I set my max heap size to 32GB or higher and use -XX:+UseCompressedOops:
OpenJDK 64-Bit Server VM warning: Max heap size too large for Compressed Oops

Java HotSpot(TM) 64-Bit Server VM warning: Max heap size too large for Compressed Oops

Environment

  • Red Hat Enterprise Linux
  • Java
    • 1.7
    • 1.8
  • Red Hat JBoss Data Grid (JDG)
    • 6.5.0
  • Red Hat JBoss Enterprise Application Platform (EAP)
    • 6.x

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