Hi,
I'm using JBoss 3.2.2.
I have an entity bean (CMP) with a home method that returns all
instances of the bean, the method is called findAll.
When using a return type of java.util.Collection in the findAll method,
my tests run fine.
But when I changed the type to java.util.Set my tests broked. When I
call findAll on the home interface of my bean I get a
java.lang.ClassCastException when using java.util.Set.
To make it clear, my home interface is:
public interface MyBeanHome
extends javax.ejb.EJBHome
{
public java.util.Collection findAll()
throws javax.ejb.FinderException,java.rmi.RemoteException;
/* other home method here */
}
The test I'm doing is very simple:
public void testFindAll()
{
try {
Collection col = beanHome.findAll();
assertEquals(collectionExpectedSize, col.size());
}
catch (Exception e) {
e.printStackTrace();
Assert.fail(e.toString());
}
}
If I use a Collection, as exemplified above, the test works. But if I
change to Set, both in the home interface and, of course in the test
too, a ClassCastException happens.
The stack trace indicates that it happens inside the home object proxy:
------------------------------------------------------------------------
[junit] java.lang.ClassCastException
[junit] at $Proxy0.findAll(Unknown Source)
[junit] at
br.com.ose.smartmovie.tests.entities.MultiplexBeanTest.testFindAll(MultiplexBeanTest.java:95)
[junit] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)
[junit] at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
[junit] at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[junit] at java.lang.reflect.Method.invoke(Method.java:324)
[junit] at junit.framework.TestCase.runTest(TestCase.java:154)
[junit] at junit.framework.TestCase.runBare(TestCase.java:127)
[junit] at
junit.framework.TestResult$1.protect(TestResult.java:106)
[junit] at
junit.framework.TestResult.runProtected(TestResult.java:124)
[junit] at junit.framework.TestResult.run(TestResult.java:109)
[junit] at junit.framework.TestCase.run(TestCase.java:118)
[junit] at junit.framework.TestSuite.runTest(TestSuite.java:208)
[junit] at junit.framework.TestSuite.run(TestSuite.java:203)
[junit] at
org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:325)
[junit] at
org.apache.tools.ant.taskdefs.optional.junit.JUnitTask.executeInVM(JUnitTask.java:848)
[junit] at
org.apache.tools.ant.taskdefs.optional.junit.JUnitTask.execute(JUnitTask.java:556)
[junit] at
org.apache.tools.ant.taskdefs.optional.junit.JUnitTask.execute(JUnitTask.java:532)
[junit] at org.apache.tools.ant.Task.perform(Task.java:341)
[junit] at org.apache.tools.ant.Target.execute(Target.java:309)
[junit] at
org.apache.tools.ant.Target.performTasks(Target.java:336)
[junit] at
org.apache.tools.ant.Project.executeTarget(Project.java:1339)
[junit] at
org.apache.tools.ant.Project.executeTargets(Project.java:1255)
[junit] at org.apache.tools.ant.Main.runBuild(Main.java:609)
[junit] at org.apache.tools.ant.Main.start(Main.java:196)
[junit] at org.apache.tools.ant.Main.main(Main.java:235)
--------------------------------------------------------------------------------
Can anyone help to clarify this?
Thanks,
--
_/_/_/ _/_/_/ _/_/_/
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OSE - Open Systems Engineering _/ _/ _/ _/
http://www.ose.com.br _/ _/ _/_/_/ _/_/_/_/
Phone: (55) 34 - 3214-5995 _/ _/ _/ _/
Fax: (55) 34 - 3214-5994 _/ _/ _/ _/
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