[jdk11u-dev] RFR: 8329013: StackOverflowError when starting Apache Tomcat with signed jar

[Amos Shi]

On Fri, 26 Apr 2024 20:31:01 GMT, Amos Shi <ashi at openjdk.org> wrote:

> Backport of [JDK-8329013](https://bugs.openjdk.org/browse/JDK-8329013)
> - This PR contains two commits
> - commit 1: is
>   - the original git apply
>   - and the `src/java.base/share/classes/jdk/internal/misc/ThreadTracker.java` file needed by this PR
>     - The `ThreadTracker.java` class was added by https://github.com/openjdk/jdk/commit/9583e3657e43cc1c6f2101a64534564db2a9bd84 , which is pretty big for `Virtual Threads` and we have no intention to back this change to Java 11 right now
>     - So here we simply copy the current code of `ThreadTracker.java` to `jdk11u-dev`
> - commit 2: is
>   - Manual merge of `src/java.base/share/classes/jdk/internal/event/EventHelper.java` based on the `EventHelper.java.rej` file. The change to this file can be `considered as clean`.
>   - Fix java 11 compile error for `ThreadTracker.java`
> 
> Testing
> - Local: Test passed
>   - `RecursiveEventHelper.java`: Test results: passed: 1
> - Pipeline: 
> - Testing Machine:

src/java.base/share/classes/jdk/internal/misc/ThreadTracker.java line 56:

> 54:         public int hashCode() {
> 55:             return Long.hashCode(thread.getId());
> 56:         }

`threadId()` method does not exit in Java 11 yet
we are using `getId()` method which is doing exactly the same job.
- https://github.com/openjdk/jdk/blame/4018b2b19629ddb8cd7a56e064dfef371f23e5fa/src/java.base/share/classes/java/lang/Thread.java#L2565


    @Deprecated(since="19")
    public long getId() {
        return threadId();
    }

    public final long threadId() {
        return tid;
    }

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PR Review Comment: https://git.openjdk.org/jdk11u-dev/pull/2687#discussion_r1581513282