RFR: CODETOOLS-7902929: JMH generators fail for benchmark in unnamed package

[Jason Zaugg]

Prior to the patch, the enclosed test failed with:


$ mvn -Preflection test
...
Running UnnamedPackageTest
Tests run: 1, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 0.004 sec <<< FAILURE! - in UnnamedPackageTest
compileTest(UnnamedPackageTest)  Time elapsed: 0.004 sec  <<< FAILURE!
java.lang.AssertionError: Annotation generator had thrown the exception.:
java.lang.NullPointerException
	at org.junit.Assert.fail(Assert.java:89)
	at org.junit.Assert.assertTrue(Assert.java:42)
	at UnnamedPackageTest.compileTest(UnnamedPackageTest.java:55)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)

-------------

Commit messages:
 - Address review feedback: really fix asm generator, restore private
 - Address review feedback: fix asm generator, use assertFail overload
 - CODETOOLS-7902929 NPE in reflection generator + unnamed package

Changes: https://git.openjdk.java.net/jmh/pull/38/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jmh&pr=38&range=00
  Issue: https://bugs.openjdk.java.net/browse/CODETOOLS-7902929
  Stats: 63 lines in 3 files changed: 56 ins; 0 del; 7 mod
  Patch: https://git.openjdk.java.net/jmh/pull/38.diff
  Fetch: git fetch https://git.openjdk.java.net/jmh pull/38/head:pull/38

PR: https://git.openjdk.java.net/jmh/pull/38