SerializationUtils throws ClassNotFoundException when cloning of primitive
classes
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Key: LANG-788
URL: https://issues.apache.org/jira/browse/LANG-788
Project: Commons Lang
Issue Type: Bug
Affects Versions: 3.1
Reporter: René Link
If a serializable object contains a reference to a primitive class, e.g.
int.class or int[].class, the SerializationUtils throw a ClassNotFoundException
when trying to clone that object.
{noformat}
import org.apache.commons.lang3.SerializationUtils;
import org.junit.Test;
public class SerializationUtilsTest {
@Test
public void primitiveTypeClassSerialization(){
Class<?> primitiveType = int.class;
Class<?> clone = SerializationUtils.clone(primitiveType);
assertEquals(primitiveType, clone);
}
}
{noformat}
The problem was already reported as a java bug
http://bugs.sun.com/view_bug.do?bug_id=4171142 and ObjectInputStream is fixed
since java version 1.4.
The SerializationUtils problem arises because the SerializationUtils internally
use the ClassLoaderAwareObjectInputStream that overrides the ObjectInputStream's
resoleClass method without delegating to the super method in case of a
ClassNotFoundException.
I understand the intention of the ClassLoaderAwareObjectInputStream, but this
implementation should also implement a fallback to the original implementation.
For example:
{noformat}
protected Class<?> resolveClass(ObjectStreamClass desc) throws
IOException, ClassNotFoundException {
String name = desc.getName();
try {
return Class.forName(name, false, classLoader);
} catch (ClassNotFoundException ex) {
try {
return Class.forName(name, false,
Thread.currentThread().getContextClassLoader());
} catch (Exception e) {
return super.resolveClass(desc);
}
}
}
{noformat}
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