RFR: 8328611: Thread safety issue in com.sun.tools.jdi.ReferenceTypeImpl::classObject

[Alex Menkov]

On Tue, 28 May 2024 23:20:48 GMT, Chris Plummer <cjplummer at openjdk.org> wrote:

> Fixed "double-checked-locking" bug in `ReferenceImplType.classObject()`. Details in the first comment. Tested with the following:
> - com/sun/jdi
> - nsk/jdi
> - nsk/jdwp
> - nsk/jdb

Marked as reviewed by amenkov (Reviewer).

src/jdk.jdi/share/classes/com/sun/tools/jdi/ReferenceTypeImpl.java line 185:

> 183:     public String signature() {
> 184:         if (signature == null) {
> 185:             // Does not need synchronization. Worst case is static info is fetched twice

Could you add dot at the end of all updated comments

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PR Review: https://git.openjdk.org/jdk/pull/19439#pullrequestreview-2084073364
PR Review Comment: https://git.openjdk.org/jdk/pull/19439#discussion_r1618047117