RELEASE NOTES FOR: 25.0.1
====================================================================================================

Notes generated: Mon Dec 08 08:31:30 CET 2025

Hint: Prefix bug IDs with https://bugs.openjdk.org/browse/ to reach the relevant JIRA entry.

JAVA ENHANCEMENT PROPOSALS (JEP):

  None.

RELEASE NOTES:

core-libs/java.io:serialization:

    JDK-8367031: Resolved Regression in java.time Class Objects

      The regression in the serialization of `java.time` class objects including LocalDate has been
      corrected by backing out the change JDK-8334742.

    JDK-8367031: Regression in Serialization of LocalDate Class Objects

      The serialized `Class` objects for several classes in the `java.time` package are incompatible
      between JDK 25 and previous versions. The affected classes include `LocalDate`, `YearMonth`,
      `MonthDay`, and `HijrahDate`. If a `Class` object for one of these classes is serialized on a
      previous version and is deserialized on JDK 25, or vice-versa, `InvalidClassException` will be
      thrown.
      
      Note that the incompatibility exists with `Class` objects but not instances of these classes.
      Serializing the `Class` object, for example by using:
      
      `writeObject(LocalDate.class)`
      
      will encounter the incompatibility. However, Serializing an instance through
      
      `writeObject(LocalDate.now())`
      
      is compatible.
      
      The issue will be examined for a future update release.

security-libs/java.security:

    JDK-8361212: Removed Four AffirmTrust Root Certificates

      The following root certificates, which are deactivated and no longer in use, have been removed
      from the `cacerts` keystore:
      
      ``` + alias name "affirmtrustcommercialca [jdk]"   Distinguished Name: CN=AffirmTrust
      Commercial, O=AffirmTrust, C=US
      
      + alias name "affirmtrustnetworkingca [jdk]"   Distinguished Name: CN=AffirmTrust Networking,
      O=AffirmTrust, C=US
      
      + alias name "affirmtrustpremiumca [jdk]"   Distinguished Name: CN=AffirmTrust Premium,
      O=AffirmTrust, C=US
      
      + alias name "affirmtrustpremiumeccca [jdk]"   Distinguished Name: CN=AffirmTrust Premium ECC,
      O=AffirmTrust, C=US ```


ALL FIXED ISSUES, BY COMPONENT AND PRIORITY:

client-libs/java.awt:
  (P3) JDK-8360647: [XWayland] [OL10] NumPad keys are not triggered
  (P3) JDK-8358452: JNI exception pending in Java_sun_awt_screencast_ScreencastHelper_remoteDesktopKeyImpl of screencast_pipewire.c:1214 (ID: 51119)

core-libs/java.io:serialization:
  (P2) JDK-8367031: [backout] Change java.time month/day field types to 'byte'

core-libs/java.util:i18n:
  (P3) JDK-8368308: ISO 4217 Amendment 180 Update - Bulgaria Adopts the Euro in 2026
  (P4) JDK-8358819: The first year is not displayed correctly in Japanese Calendar

docs/guides:
  (P4) JDK-8367892: Document System Logger use for javax.net.debug property

hotspot/compiler:
  (P3) JDK-8361532: RISC-V: Several vector tests fail after JDK-8354383
  (P4) JDK-8359270: C2: alignment check should consider base offset when emitting arraycopy runtime call
  (P4) JDK-8360179: RISC-V: Only enable BigInteger intrinsics when AvoidUnalignedAccess == false
  (P4) JDK-8359218: RISC-V: Only enable CRC32 intrinsic when AvoidUnalignedAccess == false

hotspot/gc:
  (P2) JDK-8366223: ZGC: ZPageAllocator::cleanup_failed_commit_multi_partition is broken

hotspot/jvmti:
  (P4) JDK-8358577: Test serviceability/jvmti/thread/GetCurrentContendedMonitor/contmon01/contmon01.java failed: unexpexcted monitor object

hotspot/runtime:
  (P4) JDK-8360533: ContainerRuntimeVersionTestUtils fromVersionString fails with some docker versions

hotspot/test:
  (P4) JDK-8357826: Avoid running some jtreg tests when asan is configured

infrastructure/build:
  (P4) JDK-8359059: Bump version numbers for 25.0.1

security-libs/java.security:
  (P3) JDK-8361212: Remove AffirmTrust root CAs