JDK-8240563 : [TESTBUG] WB_IsCDSIncludedInVmBuild should support uncompressed oops/klasses
- Type: Enhancement
- Component: hotspot
- Sub-Component: runtime
- Affected Version: 15
- Priority: P4
- Status: Resolved
- Resolution: Fixed
- Submitted: 2020-03-05
- Updated: 2020-03-24
- Resolved: 2020-03-12
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Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availability Release.
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| JDK 15 |
|---|
15 b15Fixed  |
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Description
http://hg.openjdk.java.net/jdk/jdk/file/73bcb3e4e596/src/hotspot/share/prims/whitebox.cpp#l1975
WB_ENTRY(jboolean, WB_IsCDSIncludedInVmBuild(JNIEnv* env))
#if INCLUDE_CDS
# ifdef _LP64
if (!UseCompressedOops || !UseCompressedClassPointers) {
// On 64-bit VMs, CDS is supported only with compressed oops/pointers
return false;
}
# endif // _LP64
return true;
#else
return false;
#endif // INCLUDE_CDS
WB_END
The test for (!UseCompressedOops || !UseCompressedClassPointers) should be removed because CDS started supporting them after JDK-8232069.
To validate, run all CDS tests with
jtreg -vmoptions:-XX:+UseZGC
jtreg -vmoptions:-XX:-UseCompressedOops
jtreg -vmoptions:-XX:-UseCompressedClassPointers
Comments
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