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  1. JDK
  2. JDK-8288483

JAVA_TOOL_OPTIONS are silently truncated if they exceed 1024 bytes

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    • Icon: Bug Bug
    • Resolution: Unresolved
    • Icon: P3 P3
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    • Fix Understood

      The JAVA_TOOL_OPTIONS environment variable is used to pass additional JVM arguments.

      The current implementation has an internal limit on the length of the option variable (1024 bytes) and the number of options (64).

      A longer variable will be silently truncated and options will be lost or the VM will exist with an unrecognized option error.

      Such limits are not set in the specification: https://docs.oracle.com/javase/8/docs/platform/jvmti/jvmti.html#tooloptions

      It's partial backport of relevant changes from JDK-8135195, JDK-8074895, JDK-8061999

        1. EnvVarOptionsTest.java
          3 kB
          Dmitriy Samersoff

            dsamersoff Dmitriy Samersoff
            dsamersoff Dmitriy Samersoff
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              Created:
              Updated: