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https://issues.apache.org/jira/browse/DIRMINA-824?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Emmanuel Lecharny resolved DIRMINA-824.
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Resolution: Duplicate
> AbstractIoBuffer.getObject cannot handle non-serializable class
> ---------------------------------------------------------------
>
> Key: DIRMINA-824
> URL: https://issues.apache.org/jira/browse/DIRMINA-824
> Project: MINA
> Issue Type: Bug
> Components: Core
> Affects Versions: 2.0.2
> Reporter: Rob Eden
>
> The inner class implementation of ObjectInputStream used in
> AbstractIoBuffer.getObject(ClassLoader) contains the following (lines
> 1960-1964 in revision 995776):
> case 1: // Non-primitive types
> String className = readUTF();
> Class<?> clazz = Class.forName(className, true,
> classLoader);
> return ObjectStreamClass.lookup(clazz);
> Instead of ObjectStreamClass.lookup(Class), it should use
> ObjectStreamClass.lookupAny(Class), which would allow non-serializable
> classes to be handled.
> The following unit test illustrates the problem:
> public class MINABufferSerializationTest extends TestCase {
> public void testGetObject() throws Exception {
> IoBuffer buffer = IoBuffer.allocate( 8 * 1024 );
> buffer.putObject( System.class );
> buffer.flip();
> Object obj = buffer.getObject();
> assertEquals( System.class, obj );
> }
> }
> When run, the following NPE is generated in the getObject:
> java.lang.NullPointerException
> at java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:534)
> at
> java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1582)
> at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1495)
> at java.io.ObjectInputStream.readClass(ObjectInputStream.java:1461)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1311)
> at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)
> at
> org.apache.mina.core.buffer.AbstractIoBuffer.getObject(AbstractIoBuffer.java:1990)
> at
> org.apache.mina.core.buffer.AbstractIoBuffer.getObject(AbstractIoBuffer.java:1927)
> at
> com.starlight.intrepid.MINABufferSerializationTest.testGetObject(MINABufferSerializationTest.java:14)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at
> com.intellij.junit3.JUnit3IdeaTestRunner.doRun(JUnit3IdeaTestRunner.java:109)
> at
> com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:65)
> The happens because the current ObjectStreamClass.lookup(Class) call returns
> null since the System class is not serializable.
> This is a blocking issue for my application as non-serializable class
> descriptors (Class objects) are often serialized.
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