RFR: 8315576: compiler/codecache/CodeCacheFullCountTest.java fails after JDK-8314837

[Yi-Fan Tsai]

CodeCacheFullCountTest disables code cache flushing, loads classes, makes the code cache running out of space (the remaining is insufficient for another nmethod), and disables compilers.
The test expects two scenarios: 1) the process continues and terminates normally or 2) the adapters cannot be allocated in `refClass` and VirtualMachineError has been thrown and printed.

When the test runs with option `-Xcomp`, `-esa`, and `-XX:-TieredCompilation`, more codes are compiled and the code cache becomes full early. The adapters may not be allocated in `loadClass`, and VirtualMachineError has been thrown but wrapped in LambdaConversionException (`InnerClassLambdaMetafactory.buildCallSite`) and BootstrapMethodError (`BootstrapMethodInvoker.invoke`).
VirtualMachineError may not be completely printed by `printStackTrace` in `ThreadGroup.uncaughtException` before the process terminated. This breaks the expected scenario 2.

The check of scenario 2 is removed from the test as it's not reliable.

The test has passed as below.

make test \
    TEST="test/hotspot/jtreg/compiler/codecache/CodeCacheFullCountTest.java" \
    JTREG="JAVA_OPTIONS=-Xcomp -ea -esa -XX:-TieredCompilation"

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Commit messages:
 - 8315576: compiler/codecache/CodeCacheFullCountTest.java fails after JDK-8314837

Changes: https://git.openjdk.org/jdk/pull/15604/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=15604&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8315576
  Stats: 5 lines in 1 file changed: 0 ins; 5 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/15604.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/15604/head:pull/15604

PR: https://git.openjdk.org/jdk/pull/15604