- core-libs-dev - openjdk.org

RFR: 8378698: Optimize Base64.Encoder#encodeToString
by Patrick Strawderman 04 Mar '26

04 Mar '26

Avoid a byte array copy in encodeToString by using JavaLangAccess#uncheckedNewStringWithLatin1Bytes ------------- Commit messages: - 8378698: Optimize Base64.Encoder#encodeToString Changes: https://git.openjdk.org/jdk/pull/29920/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=29920&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8378698 Stats: 5 lines in 1 file changed: 3 ins; 1 del; 1 mod Patch: https://git.openjdk.org/jdk/pull/29920.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/29920/head:pull/29920 PR: https://git.openjdk.org/jdk/pull/29920

7 27

RFR: 8379166: Upstream redundant diffs fixed in Valhalla - Part 1
by Chen Liang 04 Mar '26

04 Mar '26

In the lworld diff review for java.base, some diff are identified problems with mainline and best upstreamed to mainline than reverted in lworld. ------------- Commit messages: - Merge branch 'master' of https://github.com/openjdk/jdk into fix/valhalla-cleans - More diff - Merge branch 'master' of https://github.com/openjdk/jdk into fix/valhalla-cleans - Upstream some redundant diffs fixed in Valhalla Changes: https://git.openjdk.org/jdk/pull/29944/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=29944&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8379166 Stats: 51 lines in 14 files changed: 7 ins; 9 del; 35 mod Patch: https://git.openjdk.org/jdk/pull/29944.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/29944/head:pull/29944 PR: https://git.openjdk.org/jdk/pull/29944

2 9

RFR: 8378992: Case folding cache should not look up code point U+0000
by Naoto Sato 04 Mar '26

04 Mar '26

Fixed an issue in CaseFolding cache, where the cache could incorrectly hit with the code point U+0000. The issue has been found while upgrading the Unicode data to 18-alpha, and it cannot be reproduced (luckily) with the existing Unicode 17 data, so regression tests aren't provided. ------------- Commit messages: - initial commit Changes: https://git.openjdk.org/jdk/pull/30005/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=30005&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8378992 Stats: 7 lines in 1 file changed: 6 ins; 0 del; 1 mod Patch: https://git.openjdk.org/jdk/pull/30005.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/30005/head:pull/30005 PR: https://git.openjdk.org/jdk/pull/30005

3 4

RFR: 8378700: Migrate lang/annotation tests away from TestNG
by Chen Liang 04 Mar '26

04 Mar '26

Remove the use of TestNG from java/lang/annotation tests. Interesting that JUnit scans annotations on member classes, so we can't put malformed annotations on classes nested in the test class; we can put them on package-private classes in the same source file instead. Also refactored LoaderLeakTest to perform GC more reliably within our test framework. ------------- Commit messages: - Remove testng from annotation package Changes: https://git.openjdk.org/jdk/pull/29921/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=29921&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8378700 Stats: 309 lines in 7 files changed: 88 ins; 119 del; 102 mod Patch: https://git.openjdk.org/jdk/pull/29921.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/29921/head:pull/29921 PR: https://git.openjdk.org/jdk/pull/29921

3 5

RFR: 8378584: (process) Investigate and fix Alpine errors in Basic.java ProcessBuilder test, and re-enable tests
by Frederic Thevenet 04 Mar '26

04 Mar '26

With JDK-8378702 fixed[0], the two tests in `test/jdk/java/lang/ProcessBuilder/Basic.java` that are incompatible with the musl libc[1] are now properly excluded from running in this env, so it is safe to remove the file-wide exclusion so the other tests can be run. [0] https://bugs.openjdk.org/browse/JDK-8378702 [1] https://github.com/fthevenet/jdk/blob/4076fdd5387dbea52249692d2874705ebca39… ------------- Commit messages: - 8378584: (process) Investigate and fix Alpine errors in Basic.java ProcessBuilder test, and re-enable tests Changes: https://git.openjdk.org/jdk/pull/30016/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=30016&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8378584 Stats: 3 lines in 1 file changed: 0 ins; 1 del; 2 mod Patch: https://git.openjdk.org/jdk/pull/30016.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/30016/head:pull/30016 PR: https://git.openjdk.org/jdk/pull/30016

3 4

RFR: 8374364: TestCgroupMetrics.java fails when docker service unavailable
by SendaoYan 04 Mar '26

04 Mar '26

Hi all, Test jdk/internal/platform/cgroup/TestCgroupMetrics.java report fails when the docker service is unavailable. The details shows in jbs issue. I think it's better to call `DockerTestUtils.checkCanTestDocker()` before run this test. Change has been verified locally. Test-fix only, no risk. ------------- Commit messages: - 8374364: TestCgroupMetrics.java fails when docker service unavailable Changes: https://git.openjdk.org/jdk/pull/28996/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=28996&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8374364 Stats: 3 lines in 1 file changed: 2 ins; 0 del; 1 mod Patch: https://git.openjdk.org/jdk/pull/28996.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/28996/head:pull/28996 PR: https://git.openjdk.org/jdk/pull/28996

3 15

RFR: 8378876: jpackage: facilitate testing with mocks
by Alexey Semenyuk 04 Mar '26

04 Mar '26

- Decouple jpackage implementation and test helpers from the current OS: replace OperatingSystem.current() calls with parameters and/or fields of type jdk.internal.util.OperatingSystem where feasible. - Support running jpackage without making it run actual packaging. jpackage will exit after it parses the command line, validates the options, and builds a model. ------------- Commit messages: - Update copyright year - MacDmgSystemEnvironment: support mock testing - ToolValidator: remove adding "--version" option by default on Linux platform as it interferes with mock testing - PackageBuilder: don't assume install directory of a non-standard package should be absolute - TKit: support switching the current OS. - unbind from the OperatingSystem.current() - StandardOption: add "EXIT_AFTER_CONFIGURATION_PHASE" internal debug option. If in the list of options, jpackage will exit after configuration phase is over and will not run packaging pipeline. Changes: https://git.openjdk.org/jdk/pull/29908/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=29908&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8378876 Stats: 179 lines in 22 files changed: 97 ins; 28 del; 54 mod Patch: https://git.openjdk.org/jdk/pull/29908.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/29908/head:pull/29908 PR: https://git.openjdk.org/jdk/pull/29908

3 12

RFR: 8378312: [VectorAPI] libraryUnaryOp/libraryBinaryOp failed to intrinsify
by Yasumasa Suenaga 04 Mar '26

04 Mar '26

I ran following code with `-Djdk.incubator.vector.DEBUG=true`, however it was not intrinsified. public static void cos(){ var rand = new Random(); for(int i = 0; i < 1_000_000; i++){ var vec = DoubleVector.fromArray(DoubleVector.SPECIES_256, rand.doubles().limit(4).toArray(), 0); vec.lanewise(VectorOperators.COS); } } I knew `__jsvml_cos4_ha_l9()` in libjsvml.so should be called in this case (via vector debug log), but it was not hitted even though I set breakpoint in it. `LaneType` has been introduced in [JDK-8376187](https://bugs.openjdk.org/browse/JDK-8376187), and `LibraryCallKit::inline_vector_call()` was updated to handle lane type rather than class of element type. However `VectorMathLibrary` wasn't modified. I confirmed `__jsvml_cos4_ha_l9()` is called with this fix, and also all jdk/jdk/incubator/vector jtreg tests passed on Linux AMD64. ------------- Commit messages: - 8378312: [VectorAPI] libraryUnaryOp/libraryBinaryOp failed to intrinsify Changes: https://git.openjdk.org/jdk/pull/29835/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=29835&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8378312 Stats: 9 lines in 3 files changed: 2 ins; 0 del; 7 mod Patch: https://git.openjdk.org/jdk/pull/29835.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/29835/head:pull/29835 PR: https://git.openjdk.org/jdk/pull/29835

5 26

RFR: 8379039: Build failure on vector API source generation after JDK-8378312
by Yasumasa Suenaga 04 Mar '26

04 Mar '26

[JDK-8378312](https://bugs.openjdk.org/browse/JDK-8378312) updated method signature to intrinsify functions provided by SVML / SLEEF. However it does not have change for X-Vector.java.template, so DoubleVector.java and FloatVector.java would be back to older signature if the developer re-generate Vecotr API source code via gen-src.sh. This PR fixes to align X-Vector.java.template with current DoubleVector and FloatVector. ------------- Commit messages: - 8379039: Build failure on vector API source generation after JDK-8378312 Changes: https://git.openjdk.org/jdk/pull/30025/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=30025&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8379039 Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod Patch: https://git.openjdk.org/jdk/pull/30025.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/30025/head:pull/30025 PR: https://git.openjdk.org/jdk/pull/30025

3 4

RFR: 8378874: jpackage: remove redundant messages
by Alexey Semenyuk 03 Mar '26

03 Mar '26

On macOS, remove message.signing.pkg=Warning: For signing PKG, you might need to set "Always Trust" for your certificate using "Keychain Access" tool. This warning is redundant, as the user should have this type of configuration when using jpackage for any signing. On Windows, remove message.use-wix36-features=WiX {0} detected. Enabling advanced cleanup action. This notification is redundant: The oldest officially available version of WiX is 3.11. ------------- Commit messages: - Update copyright year - Remove "message.signing.pkg" warning - Remove redundant "message.use-wix36-features" info message Changes: https://git.openjdk.org/jdk/pull/29907/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=29907&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8378874 Stats: 31 lines in 6 files changed: 1 ins; 28 del; 2 mod Patch: https://git.openjdk.org/jdk/pull/29907.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/29907/head:pull/29907 PR: https://git.openjdk.org/jdk/pull/29907

2 3