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Java 9: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector

See original GitHub issue

With Java 9 or 10, using

            <dependency>
                <groupId>org.glassfish.jaxb</groupId>
                <artifactId>jaxb-runtime</artifactId>
                <version>2.3.0</version>
            </dependency>

results in:

WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector 
(file: repository/org/glassfish/jaxb/jaxb-runtime/2.3.0/jaxb-runtime-2.3.0.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release

Issue Analytics

State:
Created 5 years ago
Reactions:1
Comments:13 (9 by maintainers)

Top GitHub Comments

4reactions

Tomas-Krauscommented, Sep 21, 2018

@bravehorsie Commented jaxb-ri runtime uses ClassLoader#defineClass / Unsafe#defineClass to do some bytecode modification in runtime to optimize performance. ClassLoader#defineClass is tried first which causes the warning.

This legacy optimization is removed completely in jaxb-ri master (after 2.3.0, not released yet).

To disable this optimization for 2.3.0, set system property com.sun.xml.bind.v2.bytecode.ClassTailor.noOptimize.

Roman

On Wed, May 9, 2018 at 6:57 AM, Naman Nigam notifications@github.com wrote:

Tracker for a similar question on Stackoverflow => Q50237516 https://stackoverflow.com/questions/50237516/proper-fix-for-java-10-complaining-about-illegal-reflection-access-by-jaxb-impl

— You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub https://github.com/javaee/jaxb-v2/issues/1197#issuecomment-387620115, or mute the thread https://github.com/notifications/unsubscribe-auth/AI8ZttSIFtRovJJhToXUxJrtfXDj2AGmks5twndJgaJpZM4Tz4Of .

0reactions

bourgeslcommented, Mar 31, 2021

Thanks. My fat jar already had META-INF/versions folder but ‘Multi-Release: true’ was missing in the MANIFEST.MF ! I will get rid of my JDK16 fix as it works now like a charm !