Bugs item #581751, was opened at 2002-07-15 11:02
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Category: JBossCMP
Group: v3.0 Rabbit Hole
>Status: Closed
>Resolution: Invalid
Priority: 5
Submitted By: Luke Taylor (luke_t)
>Assigned to: Dain Sundstrom (dsundstrom)
Summary: NullPointerException in CMP Proxy
Initial Comment:
I think this is a similar problem to that reported in
Bug 504246 against JAWS. I'm using JBoss 3.01RC1 with
jdk 1.3.1 and an Oracle8 DB.
If I have a have a CMP field (int or boolean), then I
get a NullPointerException thrown directly from the
proxy class:
2002-07-15 14:26:16,099 ERROR
[org.jboss.ejb.plugins.LogInterceptor]
TransactionRolledbackException, causedBy:
java.lang.NullPointerException
at
oss.biz.ejb.PersonCMP$Proxy.getFingerprintsHeld(<generated>)
at oss.biz.ejb.PersonCMP.getData(PersonCMP.java:52)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at
org.jboss.ejb.EntityContainer$ContainerInterceptor.invoke(EntityContainer.java:1197)
The problem occurs when there the fields are null in
the database and so goes away if they are changed to
Integer, Boolean etc.
I don't quite understand why the exception occurs in
the proxy class as I thought its only job was to
delegate to its InvocationHandler???
----------------------------------------------------------------------
>Comment By: Dain Sundstrom (dsundstrom)
Date: 2002-07-15 11:18
Message:
Logged In: YES
user_id=251431
A Java primitive cannot be null, so you can't have null
values in columns that are mapped to Java primitives. There
is a existing bug report to make this error message better.
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