Christian Beikov created DELTASPIKE-1432:
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Summary: Proxy class definition does not work
Key: DELTASPIKE-1432
URL: https://issues.apache.org/jira/browse/DELTASPIKE-1432
Project: DeltaSpike
Issue Type: Improvement
Security Level: public (Regular issues)
Components: Proxy-Module
Affects Versions: 1.9.5
Reporter: Christian Beikov
In
{{org.apache.deltaspike.proxy.impl.AsmDeltaSpikeProxyClassGenerator#loadClass}}
the current implementation always tries to make the {{ClassLoader#defineClass}}
method (of module java.base) accessible which is disallowed by default since
16. To workaround this, one has to add the following command line flags
{{--add-opens java.base/java.lang=ALL-UNNAMED}}. This can be properly
implemented though by using the new supported API
{{java.lang.invoke.MethodHandles.Lookup#defineClass}} like Weld 3.1.7 now also
did. This would help usability of Deltaspike a lot.
Here is the exception one sees without the flag:
{code}
Suppressed: java.lang.reflect.InaccessibleObjectException: Unable to make
protected final java.lang.Class
java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int,java.security.ProtectionDomain)
throws java.lang.ClassFormatError accessible: module java.base does not "opens
java.lang" to module deltaspike.proxy.module.impl.asmSuppressed:
java.lang.reflect.InaccessibleObjectException: Unable to make protected final
java.lang.Class
java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int,java.security.ProtectionDomain)
throws java.lang.ClassFormatError accessible: module java.base does not "opens
java.lang" to module deltaspike.proxy.module.impl.asm at
java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:357)
at
java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:297)
at java.base/java.lang.reflect.Method.checkCanSetAccessible(Method.java:199)
at java.base/java.lang.reflect.Method.setAccessible(Method.java:193) at
[email protected]/org.apache.deltaspike.proxy.impl.AsmDeltaSpikeProxyClassGenerator.loadClass(AsmDeltaSpikeProxyClassGenerator.java:528)
at
[email protected]/org.apache.deltaspike.proxy.impl.AsmDeltaSpikeProxyClassGenerator.generateProxyClass(AsmDeltaSpikeProxyClassGenerator.java:73)
at
[email protected]/org.apache.deltaspike.proxy.api.DeltaSpikeProxyFactory.createProxyClass(DeltaSpikeProxyFactory.java:89)
{code}
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