RFR: 8349860: Make Class.isArray(), Class.isInterface() and Class.isPrimitive() non-native

Dean Long dlong at openjdk.org
Wed Feb 19 03:37:52 UTC 2025


On Tue, 11 Feb 2025 20:56:39 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

> Class.isInterface() can check modifier flags, Class.isArray() can check whether component mirror is non-null and Class.isPrimitive() needs a new final transient boolean in java.lang.Class that the JVM code initializes.
> Tested with tier1-4 and performance tests.

src/hotspot/share/prims/jvm.cpp line 2283:

> 2281: // Otherwise it returns its argument value which is the _the_class Klass*.
> 2282: // Please, refer to the description in the jvmtiThreadState.hpp.
> 2283: 

Does this "RedefineClasses support" comment still belong here?

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PR Review Comment: https://git.openjdk.org/jdk/pull/23572#discussion_r1960900041


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