RFR(S): 8161068: jdk.vm.ci.hotspot.test.MethodHandleAccessProviderTest fails

[Michael Haupt]

Dear all,

please review this fix.
Bug: https://bugs.openjdk.java.net/browse/JDK-8161068
Webrev: http://cr.openjdk.java.net/~mhaupt/8161068/webrev.00/

MethodHandleAccessProvider (MHAP) gets hold of an ResolvedJavaMethod instance of an internal method (LambdaForm.compileToBytecode()) and uses the result of an invocation thereof. The failure occurred because MHAP looks up said method by class and name only, without verifying the signature. The fix for 8160717 contained a refactoring of LF.cTB that changed the method's result type from MemberName to void. MHAP still relied on the result, leading to an NPE causing the test to fail.

The fix introduces signature verification.

Tests run: hs-tier0-comp via RBT.

Thanks,

Michael

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