JDK-8219612 : [TESTBUG] compiler.codecache.stress.Helper.TestCaseImpl can't be defined in different runtime package as its nest host
- Type: Bug
- Component: hotspot
- Sub-Component: compiler
- Affected Version: 13
- Priority: P3
- Status: Resolved
- Resolution: Fixed
- Submitted: 2019-02-23
- Updated: 2023-12-06
- Resolved: 2019-03-27
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| JDK 11 | JDK 13 |
|---|---|
| 11.0.23-oracleFixed | 13 b14Fixed  |
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Description
compiler.codecache.stress.Helper.TestCaseImpl is a nested inner class of compiler.codecache.stress.Helper so they have nestmate relationship. However the test defines TestCaseImpl class with a different class loader in a different runtime package as its nest host class compiler.codecache.stress.Helper. TestCaseImpl has a NestHost attribute but TestCaseImpl does not rely on nestmate access it never validates the nest relationship and so this problem is not seen. These tests must be fixed before JDK-8171335 that will change the lambda generation using dynamic nestmates where the nest-host of the nested class has to be retrieved and results in a failure: Exception: java.lang.IncompatibleClassChangeError: Type compiler.codecache.stress.Helper$TestCaseImpl (loader: jdk.test.lib.ByteCodeLoader ...) is not a nest member of compiler.codecache.stress.Helper (loader: 'app'): types are in different packages The nest-host and the nest members must all be in the same package. The test should be rewritten to use top-level classes rather then nested ones. http://hg.openjdk.java.net/valhalla/valhalla/rev/ab7ea72963c9 is the patch fixing these tests in valhalla repo nestmates branch.
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