Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-8176475

Xcheck:jni warnings in Module code - WARNING: JNI local refs: N, exceeds capacity: M

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: P4
    • Resolution: Fixed
    • Affects Version/s: 9, 10
    • Fix Version/s: 9-repo-jigsaw
    • Component/s: core-libs
    • Labels:
      None

      Description

      java -Xcheck:jni reports

      WARNING: JNI local refs: 33, exceeds capacity: 32
              at java.lang.reflect.Module.defineModule0(java.base/Native Method)
              at java.lang.reflect.Module.<init>(java.base/Module.java:132)
              at java.lang.reflect.Module.<init>(java.base/Module.java:97)
              at java.lang.reflect.Module$3.defineModule(java.base/Module.java:1514)
              at jdk.internal.module.Modules.defineModule(java.base/Modules.java:71)
              at jdk.internal.module.ModuleBootstrap.boot(java.base/ModuleBootstrap.java:135)
              at java.lang.System.initPhase2(java.base/System.java:1928)
      WARNING: JNI local refs: 66, exceeds capacity: 65
              at java.lang.reflect.Module.defineModule0(java.base/Native Method)
              at java.lang.reflect.Module.<init>(java.base/Module.java:132)
              at java.lang.reflect.Module.<init>(java.base/Module.java:97)
              at java.lang.reflect.Module$3.defineModule(java.base/Module.java:1514)
              at jdk.internal.module.Modules.defineModule(java.base/Modules.java:71)
              at jdk.internal.module.ModuleBootstrap.boot(java.base/ModuleBootstrap.java:135)
              at java.lang.System.initPhase2(java.base/System.java:1928)
      WARNING: JNI local refs: 99, exceeds capacity: 98
              at java.lang.reflect.Module.defineModule0(java.base/Native Method)
              at java.lang.reflect.Module.<init>(java.base/Module.java:132)
              at java.lang.reflect.Module.<init>(java.base/Module.java:97)
              at java.lang.reflect.Module$3.defineModule(java.base/Module.java:1514)
              at jdk.internal.module.Modules.defineModule(java.base/Modules.java:71)
              at jdk.internal.module.ModuleBootstrap.boot(java.base/ModuleBootstrap.java:135)
              at java.lang.System.initPhase2(java.base/System.java:1928)
      WARNING: JNI local refs: 132, exceeds capacity: 131
              at java.lang.reflect.Module.defineModule0(java.base/Native Method)
              at java.lang.reflect.Module.<init>(java.base/Module.java:132)
              at java.lang.reflect.Module.<init>(java.base/Module.java:97)
              at java.lang.reflect.Module$3.defineModule(java.base/Module.java:1514)
              at jdk.internal.module.Modules.defineModule(java.base/Modules.java:71)
              at jdk.internal.module.ModuleBootstrap.boot(java.base/ModuleBootstrap.java:135)
              at java.lang.System.initPhase2(java.base/System.java:1928)

      In all cases we seem to have exceeded capacity by one.

        Attachments

          Issue Links

            Activity

              People

              • Assignee:
                alanb Alan Bateman
                Reporter:
                dholmes David Holmes
              • Votes:
                0 Vote for this issue
                Watchers:
                2 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: