8329013: StackOverflowError when starting Apache Tomcat with signed jar #2687

amosshi · 2024-04-26T20:31:01Z

Backport of 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 openjdk/jdk@9583e36 , which is pretty big for Virtual Threads (JDK-8284161) and we have no intention to back port this change to Java 11 right now
  - So here we simply copy the current code of ThreadTracker.java to jdk11u-dev
commit 2:
- 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
commit 3: The Inner Class ThreadRef for the original Record type should be final

Testing

Local: Test passed
- RecursiveEventHelper.java: Test results: passed: 1
Pipeline: All checks have passed
Testing Machine: SAP nightlies passed on 2024-04-28
- Automated jtreg test: jtreg_jdk_tier2
- jdk/security/logging/RecursiveEventHelper.java: SUCCESSFUL GitHub 📊⏲ - [2,152 msec]
Testing Machine with commit 3: SAP nightlies passed on 2024-05-04
- Automated jtreg test: jtreg_jdk_tier2
- jdk/security/logging/RecursiveEventHelper.java: SUCCESSFUL GitHub 📊⏲ - [2,301 msec]

Progress

Change must be properly reviewed (1 review required, with at least 1 Reviewer)
Change must not contain extraneous whitespace
Commit message must refer to an issue
JDK-8329013 needs maintainer approval

Issue

JDK-8329013: StackOverflowError when starting Apache Tomcat with signed jar (Bug - P4 - Approved)

Reviewers

Matthias Baesken (@MBaesken - Reviewer)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk11u-dev.git pull/2687/head:pull/2687
$ git checkout pull/2687

Update a local copy of the PR:
$ git checkout pull/2687
$ git pull https://git.openjdk.org/jdk11u-dev.git pull/2687/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 2687

View PR using the GUI difftool:
$ git pr show -t 2687

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk11u-dev/pull/2687.diff

Webrev

Link to Webrev Comment

… Compile fix

bridgekeeper · 2024-04-26T20:31:20Z

👋 Welcome back ashi! A progress list of the required criteria for merging this PR into master will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

openjdk · 2024-04-26T20:31:22Z

@amosshi This change now passes all automated pre-integration checks.

After integration, the commit message for the final commit will be:

8329013: StackOverflowError when starting Apache Tomcat with signed jar

Reviewed-by: mbaesken

You can use pull request commands such as /summary, /contributor and /issue to adjust it as needed.

At the time when this comment was updated there had been 39 new commits pushed to the master branch:

c35d30d: 8331263: Bump update version for OpenJDK: jdk-11.0.25
47fd86c: 8273153: Consolidate file_exists into os:file_exists
8a489e5: 8293887: AArch64 build failure with GCC 12 due to maybe-uninitialized warning in libfdlibm k_rem_pio2.c
3533374: 8312194: test/hotspot/jtreg/applications/ctw/modules/jdk_crypto_ec.java cannot handle empty modules
b7596f3: 8316138: Add GlobalSign 2 TLS root certificates
b8ee2aa: 8326591: New test JmodExcludedFiles.java fails on Windows when --with-external-symbols-in-bundles=public is used
1d6965f: 8267796: vmTestbase/nsk/jvmti/scenarios/hotswap/HS201/hs201t002/TestDescription.java fails with NoClassDefFoundError
2a804f5: 8297082: Remove sun/tools/jhsdb/BasicLauncherTest.java from problem list
ece9b2c: 8326521: JFR: CompilerPhase event test fails on windows 32 bit
2ff4d4e: 8318322: Update IANA Language Subtag Registry to Version 2023-10-16
... and 29 more: https://git.openjdk.org/jdk11u-dev/compare/dabf4d16a190f5169a2eb56ff964f9a3365bce62...master

As there are no conflicts, your changes will automatically be rebased on top of these commits when integrating. If you prefer to avoid this automatic rebasing, please check the documentation for the /integrate command for further details.

➡️ To integrate this PR with the above commit message to the master branch, type /integrate in a new comment.

openjdk · 2024-04-26T20:31:30Z

This backport pull request has now been updated with issue from the original commit.

mlbridge · 2024-04-26T20:36:12Z

Webrevs

01: Full - Incremental (a7967b63)
00: Full (20f1386f)

amosshi · 2024-04-26T20:40:39Z

src/java.base/share/classes/jdk/internal/misc/ThreadTracker.java

+        Thread thread() {
+            return this.thread;
+        }
+
        @Override


Java 11 doe not have record yet (Java 14 via JEP 359), so we convert this record type as inner class.

amosshi · 2024-04-26T20:43:21Z

src/java.base/share/classes/jdk/internal/misc/ThreadTracker.java

        @Override
        public int hashCode() {
-            return Long.hashCode(thread.threadId());
+            return Long.hashCode(thread.getId());
        }


threadId() method does not exit in Java 11 yet

It was introduced by openjdk/jdk@9583e36 - JDK-8284161

we are using getId() method on jdk11u-dev 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; }

amosshi · 2024-04-26T20:53:30Z

src/java.base/share/classes/jdk/internal/misc/ThreadTracker.java

-            return (obj instanceof ThreadRef other)
-                    && this.thread == other.thread;
+            return (obj instanceof ThreadRef)
+                    && this.thread == ((ThreadRef)obj).thread;
        }


instanceof operator was introduced by Java 14 via JEP 305, on jdk11u-dev we need convert this code to traditional manner

MBaesken

looks okay but please check for final in the record to class conversion.

MBaesken · 2024-04-29T06:58:21Z

src/java.base/share/classes/jdk/internal/misc/ThreadTracker.java

+     * The hashCode/equals methods do not invoke the Thread hashCode/equals method
+     * as they may run arbitrary code and/or leak references to Thread objects.
+     */
+    private class ThreadRef {


In case of record to class, shouldn't it be a final class ?

@MBaesken Good catch. I decompiled a Java Record type confirmed this point: final is needed

access_flags: 0000000000110000 final super

openjdk · 2024-04-29T07:00:46Z

⚠️ @amosshi This change is now ready for you to apply for maintainer approval. This can be done directly in each associated issue or by using the /approval command.

tstuefe · 2024-04-29T07:35:53Z

I don't have time to review this, but kudos for clearly delineating and explaining the delta between this patch and its original. Wish every backporter would do this.

amosshi · 2024-05-06T21:18:34Z

/approval request "Un-Clean backport. SAP nightlies passed on 2024-05-04”

openjdk · 2024-05-06T21:20:13Z

@amosshi
8329013: The approval request has been created successfully.

amosshi · 2024-06-03T04:14:18Z

/integrate

openjdk · 2024-06-03T04:14:47Z

Going to push as commit 7b377ac.
Since your change was applied there have been 40 commits pushed to the master branch:

31a780d: 8276819: javax/print/PrintServiceLookup/FlushCustomClassLoader.java fails to free
c35d30d: 8331263: Bump update version for OpenJDK: jdk-11.0.25
47fd86c: 8273153: Consolidate file_exists into os:file_exists
8a489e5: 8293887: AArch64 build failure with GCC 12 due to maybe-uninitialized warning in libfdlibm k_rem_pio2.c
3533374: 8312194: test/hotspot/jtreg/applications/ctw/modules/jdk_crypto_ec.java cannot handle empty modules
b7596f3: 8316138: Add GlobalSign 2 TLS root certificates
b8ee2aa: 8326591: New test JmodExcludedFiles.java fails on Windows when --with-external-symbols-in-bundles=public is used
1d6965f: 8267796: vmTestbase/nsk/jvmti/scenarios/hotswap/HS201/hs201t002/TestDescription.java fails with NoClassDefFoundError
2a804f5: 8297082: Remove sun/tools/jhsdb/BasicLauncherTest.java from problem list
ece9b2c: 8326521: JFR: CompilerPhase event test fails on windows 32 bit
... and 30 more: https://git.openjdk.org/jdk11u-dev/compare/dabf4d16a190f5169a2eb56ff964f9a3365bce62...master

Your commit was automatically rebased without conflicts.

openjdk · 2024-06-03T04:14:53Z

@amosshi Pushed as commit 7b377ac.

💡 You may see a message that your pull request was closed with unmerged commits. This can be safely ignored.

amosshi added 2 commits April 26, 2024 13:29

Backport 925d82931c09dc11ea5a3bc410ea5cfd67ee14aa

78d12bc

Backport 925d82931c09dc11ea5a3bc410ea5cfd67ee14aa Manual Merge and 11…

20f1386

… Compile fix

openjdk bot changed the title ~~Backport 925d82931c09dc11ea5a3bc410ea5cfd67ee14aa~~ 8329013: StackOverflowError when starting Apache Tomcat with signed jar Apr 26, 2024

openjdk bot added backport rfr Pull request is ready for review labels Apr 26, 2024

amosshi commented Apr 26, 2024

View reviewed changes

MBaesken approved these changes Apr 29, 2024

View reviewed changes

Backport The Record class should be final

a7967b6

MBaesken approved these changes Apr 30, 2024

View reviewed changes

openjdk bot added the approval label May 6, 2024

openjdk bot added ready Pull request is ready to be integrated and removed approval labels May 29, 2024

openjdk bot added the integrated Pull request has been integrated label Jun 3, 2024

openjdk bot closed this Jun 3, 2024

openjdk bot removed ready Pull request is ready to be integrated rfr Pull request is ready for review labels Jun 3, 2024

amosshi deleted the backport-8329013 branch June 11, 2024 22:04

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8329013: StackOverflowError when starting Apache Tomcat with signed jar #2687

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8329013: StackOverflowError when starting Apache Tomcat with signed jar #2687

8329013: StackOverflowError when starting Apache Tomcat with signed jar #2687

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