JDK-6868487 : EnableInvokeDynamic and EnableMethodHandles should not be visible flags in JDK6 or JDK7
  • Type: Bug
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 7
  • Priority: P3
  • Status: Closed
  • Resolution: Fixed
  • OS: generic
  • CPU: generic
  • Submitted: 2009-08-04
  • Updated: 2011-03-08
  • Resolved: 2011-03-08
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Resolved: Release in which this issue/RFE has been resolved.
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JDK 6 JDK 7 Other
6u18Fixed 7Fixed hs16Fixed
Related Reports
Relates :  
JDK-6817525 - turn on method handle functionality by default for JSR 292
Description
The flags EnableInvokeDynamic and EnableMethodHandles need to be categorized as experimental in the JDK6 VM (and off by default).

In a later build of JDK7, the fix for bug 6817525 will turn on those flags (both of them) by default, and at the same time recategorize them as diagnostic.
Comments
EVALUATION http://hg.openjdk.java.net/jdk7/hotspot-gc/hotspot/rev/bd2b1f617a4e
10-08-2009
EVALUATION http://hg.openjdk.java.net/jdk7/hotspot-comp/hotspot/rev/bd2b1f617a4e
07-08-2009
SUGGESTED FIX diff --git a/src/share/vm/runtime/globals.hpp b/src/share/vm/runtime/globals.hpp --- a/src/share/vm/runtime/globals.hpp +++ b/src/share/vm/runtime/globals.hpp @@ -3316,7 +3316,7 @@ product(bool, AnonymousClasses, false, \ "support sun.misc.Unsafe.defineAnonymousClass") \ \ - product(bool, EnableMethodHandles, false, \ + experimental(bool, EnableMethodHandles, false, \ "support method handles (true by default under JSR 292)") \ \ diagnostic(intx, MethodHandlePushLimit, 3, \ @@ -3331,7 +3331,7 @@ diagnostic(bool, OptimizeMethodHandles, true, \ "when constructing method handles, try to improve them") \ \ - product(bool, EnableInvokeDynamic, false, \ + experimental(bool, EnableInvokeDynamic, false, "recognize the invokedynamic instruction") \ \ develop(bool, TraceInvokeDynamic, false, \
04-08-2009