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  1. Weld
  2. WELD-2613

ClassFileUtils.java can invoke Unsafe under JDK 11 causing a NoClassDefFoundError

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Details

    • Bug
    • Resolution: Done
    • Major
    • 3.1.4.Final
    • 3.1.3.Final
    • Reflection layer
    • None

    Description

      I tried to do my homework but didn't see any other issue in the issue tracker with Weld as the project and "sun misc Unsafe" as search keywords. Feel free to close if this is a duplicate.

      ClassUtils.java line 75 features a blind invocation of sun.misc.Unsafe that throws a NoClassDefFoundError under JDK 11. Here's the source link: https://github.com/weld/core/blob/8d4fb65fcba96a41abbf8c019f8162a786cc1435/impl/src/main/java/org/jboss/weld/util/bytecode/ClassFileUtils.java#L75

      It's my understanding that Unsafe is no longer present in JDK 11.

      We stumbled across this when a user mistakenly used the module path in case it matters.

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          relates to

          Enhancement - An enhancement to or refactoring of existing functionality that is not configurable by an end user (typically a change made by an internal team that affects users) WELD-2619 Refactor ClassFileUtils to operate better on JDK 11+

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Pull Request Sent

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              manovotn Matěj Novotný
              ljnelson+github@gmail.com Laird Nelson (Inactive)
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