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Improve diagnostics for LinkageError in case of ClassLoader mismatch

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Closes gh-25940
This commit is contained in:
Juergen Hoeller
2023-07-11 18:36:12 +02:00
parent 9e7ee0cb8e
commit c1bf09952b
1 changed files with 7 additions and 5 deletions
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12
spring-core/src/main/java/org/springframework/cglib/core/ReflectUtils.java
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@@ -576,15 +576,17 @@ public class ReflectUtils {
c = (Class) lookupDefineClassMethod.invoke(lookup, b);
}
catch (InvocationTargetException ex) {
throw new CodeGenerationException(ex.getTargetException());
}
catch (IllegalAccessException ex) {
throw new CodeGenerationException(ex) {
Throwable target = ex.getTargetException();
if (target.getClass() != LinkageError.class && target.getClass() != IllegalAccessException.class) {
throw new CodeGenerationException(target);
}
throw new CodeGenerationException(target) {
@Override
public String getMessage() {
return "ClassLoader mismatch for [" + contextClass.getName() +
"]: 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.";
}
};
}