You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@mina.apache.org by "Emmanuel Lecharny (JIRA)" <ji...@apache.org> on 2011/03/17 09:15:29 UTC
[jira] Resolved: (DIRMINA-824) AbstractIoBuffer.getObject cannot
handle non-serializable class
[ https://issues.apache.org/jira/browse/DIRMINA-824?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Emmanuel Lecharny resolved DIRMINA-824.
---------------------------------------
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.
--
This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira