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Improve diagnostics for LinkageError in case of ClassLoader mismatch 

Closes gh-25940
This commit is contained in:
Juergen Hoeller 2023-07-11 17:50:44 +02:00
parent c375fb1f70
commit e2b24f3c12
1 changed files with 10 additions and 8 deletions
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18
spring-core/src/main/java/org/springframework/cglib/core/ReflectUtils.java
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@ -22,6 +22,7 @@ import java.beans.Introspector;
import java.beans.PropertyDescriptor; import java.beans.PropertyDescriptor;
import java.lang.invoke.MethodHandles; import java.lang.invoke.MethodHandles;
import java.lang.reflect.Constructor; import java.lang.reflect.Constructor;
import java.lang.reflect.InaccessibleObjectException;
import java.lang.reflect.InvocationTargetException; import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Member; import java.lang.reflect.Member;
import java.lang.reflect.Method; import java.lang.reflect.Method;
@ -508,14 +509,14 @@ public class ReflectUtils {
catch (InvocationTargetException ex) { catch (InvocationTargetException ex) {
throw new CodeGenerationException(ex.getTargetException()); throw new CodeGenerationException(ex.getTargetException());
} }
catch (Throwable ex) { catch (InaccessibleObjectException ex) {
// Fall through if setAccessible fails with InaccessibleObjectException on JDK 9+ // setAccessible failed with JDK 9+ InaccessibleObjectException -> fall through
// (on the module path and/or with a JVM bootstrapped with --illegal-access=deny) // Avoid through JVM startup with --add-opens=java.base/java.lang=ALL-UNNAMED
if (!ex.getClass().getName().endsWith("InaccessibleObjectException")) {
throw new CodeGenerationException(ex);
}
t = ex; t = ex;
} }
catch (Throwable ex) {
throw new CodeGenerationException(ex);
}
} }
} }
@ -525,13 +526,14 @@ public class ReflectUtils {
MethodHandles.Lookup lookup = MethodHandles.privateLookupIn(contextClass, MethodHandles.lookup()); MethodHandles.Lookup lookup = MethodHandles.privateLookupIn(contextClass, MethodHandles.lookup());
c = lookup.defineClass(b); c = lookup.defineClass(b);
} }
catch (IllegalAccessException ex) { catch (LinkageError | IllegalAccessException ex) {
throw new CodeGenerationException(ex) { throw new CodeGenerationException(ex) {
@Override @Override
public String getMessage() { public String getMessage() {
return "ClassLoader mismatch for [" + contextClass.getName() + return "ClassLoader mismatch for [" + contextClass.getName() +
"]: JVM should be started with --add-opens=java.base/java.lang=ALL-UNNAMED " + "]: JVM should be started with --add-opens=java.base/java.lang=ALL-UNNAMED " +
"for ClassLoader.defineClass to be accessible on " + loader.getClass().getName(); "for ClassLoader.defineClass to be accessible on " + loader.getClass().getName() +
"; consider co-locating the affected class in that target ClassLoader instead.";
} }
}; };
} }