Test jdk/lambda/vm/InterfaceAccessFlagsTest.java gets IOException during compilation

This test failed in hs-rt nightly testing on 2014-05-26 with IOException during compilation.

RULE jdk/lambda/vm/InterfaceAccessFlagsTest.java Exception java.lang.RuntimeException: IOExcep...

----------System.out:(126/8113)----------
[TestNG] Running:
  jdk/lambda/vm/InterfaceAccessFlagsTest.java

test vm.InterfaceAccessFlagsTest.testPrivateMethodCall(): failure
java.lang.RuntimeException: IOException encountered during compilation
at separate.Compiler.compileOne(Compiler.java:191)
at separate.Compiler.compileHierarchy(Compiler.java:135)
at separate.Compiler.compile(Compiler.java:111)
at vm.InterfaceAccessFlagsTest.testMethodCallWithFlag(InterfaceAccessFlagsTest.java:56)

...
Test InterfaceAccessFlagsTest.testPrivateMethodCall FAILED
config separate.TestHarness.printError(org.testng.internal.TestResult@79f964): success
config separate.TestHarness.reset(): success
test vm.InterfaceAccessFlagsTest.testPrivateStaticMethodCall(): failure
java.lang.RuntimeException: IOException encountered during compilation
at separate.Compiler.compileOne(Compiler.java:191)
at separate.Compiler.compileHierarchy(Compiler.java:135)
at separate.Compiler.compile(Compiler.java:111)
at vm.InterfaceAccessFlagsTest.testMethodCallWithFlag(InterfaceAccessFlagsTest.java:56)

...
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jdk/lambda/vm/InterfaceAccessFlagsTest.java
Total tests run: 3, Failures: 3, Skips: 0
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