On Dec 14, 2010, at 8:12 PM, Rémi Forax wrote: > On 12/14/2010 06:10 PM, Christian Thalinger wrote: >> On Dec 14, 2010, at 6:02 PM, Rémi Forax wrote: >>> With the jdk7b121, sometimes when I call a MH created with guardWith, it >>> get a NPE because the target is NULL :( >>> >>> groovy examples/mixin.groovy >>> >>> java.lang.NullPointerException >>> at >>> sun.dyn.MethodHandleImpl$GuardWithTest.invoke_L1(MethodHandleImpl.java:963) >>> at java.dyn.MethodHandle.invokeVarargs(MethodHandle.java:336) >>> at org.codehaus.groovy2.lang.MOPLinker.fallback(MOPLinker.java:145) >>> at sun.dyn.FilterGeneric$F1.invoke_C0(FilterGeneric.java:516) >>> at mixin.run(Unknown Source) >>> at >>> groovy.lang.GroovyShell.runScriptOrMainOrTestOrRunnable(GroovyShell.java:264) >>> at groovy.lang.GroovyShell.run(GroovyShell.java:227) >>> at groovy.lang.GroovyShell.run(GroovyShell.java:157) >>> at groovy.ui.GroovyMain.processOnce(GroovyMain.java:496) >>> at groovy.ui.GroovyMain.run(GroovyMain.java:311) >>> at groovy.ui.GroovyMain.process(GroovyMain.java:297) >>> at groovy.ui.GroovyMain.processArgs(GroovyMain.java:112) >>> at groovy.ui.GroovyMain.main(GroovyMain.java:93) >>> Caught: java.lang.NullPointerException >>> >>> Because MHs.guardWithTest() explicitly test that the target is not null, >>> I think there is a bug somewhere in the VM. >> Does it also happen with -Xint? Or C1? I guess you're using C2. > > Xint => same problem > I use C2 on a 64bits VM, I could reproduce it with C2 using a 32bits VM > but not with C1 (32bits VM).
I can reproduce it on x86 and SPARC with -Xint. I'm not sure yet what causes this but can this be an API problem? -- Christian _______________________________________________ mlvm-dev mailing list [email protected] http://mail.openjdk.java.net/mailman/listinfo/mlvm-dev
