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https://issues.jboss.org/browse/AS7-5496?page=com.atlassian.jira.plugin.s...
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Uwe Seimet edited comment on AS7-5496 at 9/6/12 2:26 AM:
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I have attached these files:
1. server.log, with the exception backtrace at the bottom.
2. test.sql: Dump of a very small MySQL database with two tables (one row each) and one ID
generator table.
3. deployments.tar.gz: Exploded ear and war that demonstrate the problem.
4. sources.tar.gz: The sources, created from my Eclipse workspace.
To reproduce the exception please do this:
1. Execute the SQL script test.sql to create the database named 'test' for this
test.
2. Add a JNDI entry in JBoss to use the database created in step 1.
3. Unpack the archive deployments.tar.gz in the JBoss standalone/deployments folder.
4. Start jboss with ./standalone.sh.
5. Open this URL:
http://localhost:8080/photo_web/index.html
6. Click on the button "Submit".
7. The result is the stack backtrace in the attached logfile.
Thank you for investigating this issue.
was (Author: seimet):
I have attached these files:
1. server.log, with the exception backtrace at the bottom.
2. test.sql: Dump of a very small MySQL database with two tables (one row each).
3. deployments.tar.gz: Exploded ear and war that demonstrate the problem.
4. sources.tar.gz: The sources, created from my Eclipse workspace.
To reproduce the exception please do this:
1. Execute the SQL script test.sql to create the database for this test.
2. Add a JNDI entry in JBoss to use the database created in step 1.
3. Unpack the archive deployments.tar.gz in the JBoss standalone/deployments folder.
4. Start jboss with ./standalone.sh.
5. Open this URL:
http://localhost:8080/photo_web/index.html
6. Click on the button "Submit".
7. The result is the stack backtrace in the attached logfile.
Thank you for investigating this issue.
Hibernate proxy class not found in remote EJB call
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Key: AS7-5496
URL:
https://issues.jboss.org/browse/AS7-5496
Project: Application Server 7
Issue Type: Bug
Components: JPA / Hibernate
Affects Versions: 7.1.2.Final (EAP), 7.1.3.Final (EAP)
Environment: Java 1.6.0_35 and Java 1.7.0_07
Mac OS X 10.8.1, Windows XP and Gentoo Linux with Kernel 3.5.3
Reporter: Uwe Seimet
Assignee: Scott Marlow
Attachments: deployments.tar.gz, server.log, sources.tar.gz, test.sql
Prerequisites:
1. A JPA entity A with a reference to a different JPA entity B. FetchType is
FetchType.LAZY, e.g.
@Entity
public class A {
@ManyToOne(fetch = FetchType.LAZY)
private B refToB;
}
@Entity
public class B {
}
2. A remote interface with methods passing an instance of A, .e.g.
@Remote
public interface ITest {
A test1();
void test2(A a);
}
3. A process calling test1() and then test2() on the remote interface like this:
@EJB(lookup = "...")
private ITest iTest;
public void ITest() {
final A a = iTest.test1();
iTest.test2(a); }
}
Error description: When calling test1() an instance of A is returned. This instance is
valid and works as expected. The reference to B is a proxy (something like
B_$$_javassist_2), which was expected because B was loaded lazily and was never accessed
in the remote process before. When passing the instance of A back by calling test2(a) an
exception of this type is raised:
java.lang.ClassNotFoundException: B_$$_javassist_2 from [Module
"deployment.x.ear.y_ejb.jar:main" from Service Module Loader]
at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:190)
at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(Concurrent
ClassLoader.java:468)
It looks as if the proxy cannot be serialized or deserialized. The behavior is
reproducible with different applications on different platforms. As soon as a Hibernate
javassist proxy, which was received via a remote call, is passed back as an argument in
another remote call (the remote process is the same in all calls) the exception is
raised.
The classloader settings are the standard JBoss settings.
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