This very simple serialization/deserialization test fails. This is a regression.
////////////////////////////////////
import java.io.*;
public class Enum implements Serializable
{
public static void main(String[] args)
{
try {
ByteArrayOutputStream outb = new ByteArrayOutputStream();
ObjectOutputStream outs = new ObjectOutputStream(outb);
outs.writeObject(new Enum());
byte[] store = outb.toByteArray();
ByteArrayInputStream inb = new ByteArrayInputStream(store);
ObjectInputStream ins = new ObjectInputStream(inb);
ins.readObject();
}
catch (Throwable e) {
throw new Error(e);
}
}
}
///////////////////////////////
sauternes /tmp /usr/local/src/gcc-cvs/install/bin/gcj -C Enum.java
[04:54 27/05/05]
sauternes /tmp /usr/local/src/gcc-cvs/install/bin/gij Enum
[04:54 27/05/05]
Exception in thread "main" java.lang.Error: java.lang.ClassNotFoundException:
Enum
at Enum.main (Enum.java:17)
Caused by: java.lang.ClassNotFoundException: Enum
at java.lang.Class.forName (natClass.cc:91)
at java.io.ObjectInputStream.resolveClass (ObjectInputStream.java:782)
at java.io.ObjectInputStream.readClassDescriptor (ObjectInputStream.java:534)
at java.io.ObjectInputStream.readObject (ObjectInputStream.java:228)
at java.io.ObjectInputStream.readObject (ObjectInputStream.java:275)
at Enum.main (Enum.java:15)
sauternes /tmp kaffe Enum
[04:54 27/05/05]
sauternes /tmp java Enum
sauternes /tmp
gij (GNU libgcj) version 4.1.0 20050527 (experimental)
Note: this bug looks similar to a bug I reported against jamvm:
https://sourceforge.net/tracker/?func=detail&atid=543058&aid=1155738&group_id=75148
I paste here the evaluation Robert sent me privately after he fixed it, as it
MIGHT be relevant to gcj too (being a change in classpath).
"
P.S. It was the recent changes made to Classpath.
VMSecurityManager.currentClassLoader() now returns "null" if
checkPermissions(AllPermissions) passes. ObjectInputStream uses this
to resolve a class, and ends up trying to resolve it using the
bootstrap class loader (which fails). By luck SableVM works, because
it doesn't have a complete implementation of VMAccessController, so
checkPermissions(AllPermissions) fails, and currentClassLoader returns
the same as before. I'll report a Classpath/SableVM bug.
"
--
Summary: [regression] ClassNotFound during deserialization
Product: gcc
Version: 4.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: libgcj
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: bonniot at users dot sf dot net
CC: gcc-bugs at gcc dot gnu dot org,java-prs at gcc dot gnu
dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21785
