CMP Entity beans char attributes are crashing the CMP engine when using Informix. It seems to look for a method that does not exist in the JDBC class com.informix.jdbc.IfxChar (neither in other classes like com.informix.jdbc.IfxString that works without problems). The stack trace we get is:

javax.ejb.EJBException: Internal error setting parameters for field categoria; CausedByException is:
System or internal error java.lang.NoSuchMethodException: com.informix.jdbc.IfxChar.fromnull(java.lang.Character)

at org.jboss.ejb.plugins.cmp.jdbc.bridge.JDBCAbstractCMPFieldBridge.setArgumentParameters(JDBCAbstractCMPFieldBridge.java:297)

at org.jboss.ejb.plugins.cmp.jdbc.bridge.JDBCAbstractCMPFieldBridge.setInstanceParameters(JDBCAbstractCMPFieldBridge.java:270)

at org.jboss.ejb.plugins.cmp.jdbc.JDBCCreateEntityCommand.insertEntity(JDBCCreateEntityCommand.java:192)

at org.jboss.ejb.plugins.cmp.jdbc.JDBCCreateEntityCommand.execute(JDBCCreateEntityCommand.java:131)

at org.jboss.ejb.plugins.cmp.jdbc.JDBCStoreManager.createEntity(JDBCStoreManager.java:527)

at org.jboss.ejb.plugins.CMPPersistenceManager.createEntity(CMPPersistenceManager.java:253)

at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.createEntity(CachedConnectionInterceptor.java:270)

at org.jboss.ejb.EntityContainer.createLocalHome(EntityContainer.java:580)

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.invokeHome(EntityContainer.java:1119)

at org.jboss.ejb.plugins.AbstractInterceptor.invokeHome(AbstractInterceptor.java:73)

at org.jboss.ejb.plugins.EntitySynchronizationInterceptor.invokeHome(EntitySynchronizationInterceptor.java:207)

at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invokeHome(CachedConnectionInterceptor.java:215)

at org.jboss.ejb.plugins.AbstractInterceptor.invokeHome(AbstractInterceptor.java:73)

at org.jboss.ejb.plugins.EntityInstanceInterceptor.invokeHome(EntityInstanceInterceptor.java:90)

at org.jboss.ejb.plugins.EntityLockInterceptor.invokeHome(EntityLockInterceptor.java:79)

at org.jboss.ejb.plugins.EntityCreationInterceptor.invokeHome(EntityCreationInterceptor.java:44)

at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:111)

at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:228)

at org.jboss.ejb.plugins.TxInterceptorCMT.invokeHome(TxInterceptorCMT.java:62)

at org.jboss.ejb.plugins.SecurityInterceptor.invokeHome(SecurityInterceptor.java:105)

at org.jboss.ejb.plugins.LogInterceptor.invokeHome(LogInterceptor.java:129)

at org.jboss.ejb.EntityContainer.invokeHome(EntityContainer.java:487)

at org.jboss.ejb.plugins.local.BaseLocalContainerInvoker.invokeHome(BaseLocalContainerInvoker.java:230)

at org.jboss.ejb.plugins.local.LocalHomeProxy.invoke(LocalHomeProxy.java:110)

at $Proxy51.create(Unknown Source)

at com.porsa.projects.services.FacadeBean.makeTestData(FacadeBean.java:35)

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.StatelessSessionContainer$ContainerInterceptor.invoke(StatelessSessionContainer.java:660)

at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:186)

at org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invoke(StatelessSessionInstanceInterceptor.java:77)

at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:107)

at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:228)

at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:92)

at org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java:130)

at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:204)

at org.jboss.ejb.StatelessSessionContainer.invoke(StatelessSessionContainer.java:313)

at org.jboss.ejb.Container.invoke(Container.java:712)

at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:517)

at org.jboss.invocation.jrmp.server.JRMPInvoker.invoke(JRMPInvoker.java:382)

at sun.reflect.GeneratedMethodAccessor32.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:324)

at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:261)

at sun.rmi.transport.Transport$1.run(Transport.java:148)

at java.security.AccessController.doPrivileged(Native Method)

at sun.rmi.transport.Transport.serviceCall(Transport.java:144)

at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460)

at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701)

at java.lang.Thread.run(Thread.java:536)