The MBean method is:
--
public RowSet getRowSet (String sql_RO);
--
which I call via
--
RowSet rowSet = (RowSet) m_server.invoke
(serverName, "getRowSet",
new Object[]{sql}, new String[]{"java.lang.String"});
--
resulting in
--
RuntimeMBeanException: RuntimeException in MBean operation 'getRowSet(,java.lang.String)'
Cause: java.lang.NullPointerException
at org.jboss.mx.capability.ReflectedMBeanDispatcher.invoke(ReflectedMBeanDispatcher.java:299)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:517)
at org.jboss.jmx.adaptor.rmi.RMIAdaptorImpl.invoke(RMIAdaptorImpl.java:283)
--
using 3.0.3
====
Looking at the code in MBeanServerImpl:
509: DynamicMBean mbean = entry.getMBean();
517: return mbean.invoke(operationName, params, signature);
- It breaks in 517, the likely cause is in 509 returning null.
- the variable mbean is not checked for null
- the signature is a bit odd with (,java.lang.String) ??
Other methods - with multiple parameters, but returning String work fine. The first time, I got it working, retrieving the RowSet on the server correctly - but well, it dow does not.
-> any clues ??
-> how would I debug this?
