JDK-8266877: Missing local debug information when debugging JEP-330

[JaroslavTulach]

I am polishing support for JEP-330 in NetBeans (PR-2938) and I have problems with debugging. Local variables aren't visible as the compiler doesn't pass -g option when compiling the main class. I'd like to see

however, that requires one to pass -g option to the compiler somehow. As far as I can say there is no such way and hence I decided to create this pull request. If I invoke:

$ java -agentlib:jdwp=transport=dt_socket,address=8000,server=y,suspend=y x.java

it detects JDWP is on and adds -g to the compiler arguments. Is this an acceptable improvement? The alternative is to avoid using JEP-330 when debugging and rather generate .class by invoking javac and then run it as usual, but I'd rather rely on JEP-330 and avoid creation of the .class file.

---

Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• Change must be properly reviewed

Issue

• JDK-8266877: Missing local debug information when debugging JEP-330

Reviewers

• @APA2527 (no known github.com user name / role)
• Alan Bateman (@AlanBateman - Reviewer)

Reviewing

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$ git checkout pull/3939

Update a local copy of the PR:
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$ git pull https://git.openjdk.java.net/jdk pull/3939/head

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Checkout this PR locally:
$ git pr checkout 3939

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https://git.openjdk.java.net/jdk/pull/3939.diff

[AlanBateman]

/label add compiler

[bridgekeeper]

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[openjdk]

@AlanBateman
The compiler label was successfully added.

[robilad]

@JaroslavTulach, I've added your GitHub account to the set of verified accounts for OpenJDK.

[mlbridge]

Webrevs

• 00: Full (48ecf902)

[openjdk]

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

ℹ️ This project also has non-automated pre-integration requirements. Please see the file CONTRIBUTING.md for details.

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

8266877: Missing local debug information when debugging JEP-330

Reviewed-by: alanb

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 199 new commits pushed to the master branch:

• 3113910: 8267553: Extra JavaThread assignment in ClassLoader::create_class_path_entry()
• 4d26f22: 8264304: Create implementation for NSAccessibilityToolbar protocol peer
• 6288a99: 8267404: vmTestbase/vm/mlvm/anonloader/stress/oome/metaspace/Test.java failed with OutOfMemoryError
• 71e2fa2: 8267531: [x86] Assembler::andb(Address,Register) encoding is incorrect
• 4023646: 8266528: Optimize C2 VerifyIterativeGVN execution time
• 2462316: 8261354: SIGSEGV at MethodIteratorHost
• 72c9567: 8263486: Clean up MTLSurfaceDataBase.h
• fe33343: 8256304: should MonitorUsedDeflationThreshold be experimental or diagnostic
• 8f10c5a: 8267190: Optimize Vector API test operations
• 94cfeb9: 8256155: Allow multiple large page sizes to be used on Linux
• ... and 189 more: https://git.openjdk.java.net/jdk/compare/3af4efdfcfbbb52d38415374083c66c9e7b22604...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.

As you do not have Committer status in this project an existing Committer must agree to sponsor your change. Possible candidates are the reviewers of this PR (@AlanBateman) but any other Committer may sponsor as well.

➡️ To flag this PR as ready for integration with the above commit message, type /integrate in a new comment. (Afterwards, your sponsor types /sponsor in a new comment to perform the integration).

[jonathan-gibbons]

/csr

[openjdk]

@jonathan-gibbons this pull request will not be integrated until the CSR request JDK-8266882 for issue JDK-8266877 has been approved.

[openjdk]

@JaroslavTulach usage: /integrate [auto|manual|<hash>]

[JaroslavTulach]

/integrate

[openjdk]

@JaroslavTulach
Your change (at version 48ecf90) is now ready to be sponsored by a Committer.

[jonathan-gibbons]

/sponsor

[openjdk]

@jonathan-gibbons @JaroslavTulach Since your change was applied there have been 273 commits pushed to the master branch:

• 0c9daa7: 8265029: Preserve SIZED characteristics on slice operations (skip, limit)
• 95b1fa7: 8267529: StringJoiner can create a String that breaks String::equals
• 7f52c50: 8182043: Access to Windows Large Icons
• 8a31c07: 8267886: ProblemList javax/management/remote/mandatory/connection/RMIConnector_NPETest.java
• ae258f1: 8265418: Clean-up redundant null-checks of Class.getPackageName()
• 41185d3: 8229517: Support for optional asynchronous/buffered logging
• 7c85f35: 8267123: Remove RMI Activation
• 0754266: 8267709: Investigate differences between HtmlStyle and stylesheet.css
• 23189a1: 8191786: Thread-SMR hash table size should be dynamic
• ef368b3: 8265836: OperatingSystemImpl.getCpuLoad() returns incorrect CPU load inside a container
• ... and 263 more: https://git.openjdk.java.net/jdk/compare/3af4efdfcfbbb52d38415374083c66c9e7b22604...master

Your commit was automatically rebased without conflicts.

Pushed as commit 6eb9114.

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