Hi Gareth,
thanks for your interest in Karaf and Cellar.
It seems that you found a bug. I'm gonna raise a Jira and reproduce your
issue with a test case.
Could you provide some information about your bundle ?
Do you have create Cellar group ?
Thanks
Regards
JB
On 07/20/2011 04:36 AM, Gareth wrote:
Hello,
I would like to use Karaf as well as Cellar. I also would like to use
Hazelcast for my program (since it is now getting a lot of Apache
integration vs. other open-source clustering software). So I have some
questions:
(1) Is there an issue if I piggyback on the Cellar Hazelcast cluster, or
should I make a completely separate one? Just as a note, I am seeing some
exceptions when I uninstall my bundles after using Hazelcast:
java.lang.ClassNotFoundException:<my class> not found from bundle
[org.apache.karaf.cellar.hazelcast]
at
org.springframework.osgi.util.BundleDelegatingClassLoader.findClass(BundleDelegatingClassLoader.java:103)
at
org.springframework.osgi.util.BundleDelegatingClassLoader.loadClass(BundleDelegatingClassLoader.java:156)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:247)
.
.
Caused by: java.lang.ClassNotFoundException:<My class> not found by
org.apache.karaf.cellar.hazelcast [141]
at
org.apache.felix.framework.ModuleImpl.findClassOrResourceByDelegation(ModuleImpl.java:787)
at org.apache.felix.framework.ModuleImpl.access$400(ModuleImpl.java:71)
at
org.apache.felix.framework.ModuleImpl$ModuleClassLoader.loadClass(ModuleImpl.java:1768)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at
org.apache.felix.framework.ModuleImpl.getClassByDelegation(ModuleImpl.java:645)
(2) I see there is an OSGi classloader problem with the Hazelcast Cluster
Monitor. If you use any custom classes in an IMap it cannot find them. e.g.:
Caused by: java.lang.ClassNotFoundException:
org.apache.karaf.cellar.core.Group not found by com.hazelcast.monitor [143]
at
org.apache.felix.framework.ModuleImpl.findClassOrResourceByDelegation(ModuleImpl.java:787)
at org.apache.felix.framework.ModuleImpl.access$400(ModuleImpl.java:71)
at
org.apache.felix.framework.ModuleImpl$ModuleClassLoader.loadClass(ModuleImpl.java:1768)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)[:1.6.0_26]
Is there any way around this? Is using the Hazelcast cluster monitor to be
avoided for OSGi/Keraf Cellar?
thanks in advance,
Gareth
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Jean-Baptiste Onofré
[email protected]
http://blog.nanthrax.net
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