2 Replies Latest reply on Oct 4, 2001 1:42 AM by flesner

    Oracle 8i and CMPFieldMetaData null pointer exception

    flesner
    flesner Sep 20, 2001 9:52 PM

      I'm just beginning with JBOSS, but I've connected to my oracle 8i instance and get a null pointer exception when I try to access the database. I't something to do with the CMPFieldMetaData. I'm using default column and table mappings and i turned on SQL debug and the SQL looks fine. Anyone have a suggestion why the null pointer?

      [JAWS] Create, id is my place
      [JAWS] Exists command executing: SELECT COUNT(*) FROM FIELD WHERE name=?
      [JAWS] Set parameter: idx=1, jdbcType=VARCHAR, value=my place
      [JAWS] Create command executing: INSERT INTO FIELD (name,area,descript) VALUES (?,?,?)
      [JAWS] Set parameter: idx=1, jdbcType=VARCHAR, value=my place
      [JAWS] java.lang.NullPointerException
      [JAWS] at org.jboss.ejb.plugins.jaws.metadata.CMPFieldMetaData.getValue(CMPFieldMetaData.java:363)
      [JAWS] at org.jboss.ejb.plugins.jaws.jdbc.JDBCCommand.getCMPFieldValue(JDBCCommand.java:640)
      [JAWS] at org.jboss.ejb.plugins.jaws.jdbc.JDBCCreateEntityCommand.setParameters(JDBCCreateEntityCommand.java:163)
      [JAWS] at org.jboss.ejb.plugins.jaws.jdbc.JDBCCommand.jdbcExecute(JDBCCommand.java:159)
      [JAWS] at org.jboss.ejb.plugins.jaws.jdbc.JDBCCreateEntityCommand.execute(JDBCCreateEntityCommand.java:135)
      [JAWS] at org.jboss.ejb.plugins.jaws.JAWSPersistenceManager.createEntity(JAWSPersistenceManager.java:128)
      [JAWS] at org.jboss.ejb.plugins.CMPPersistenceManager.createEntity(CMPPersistenceManager.java:231)
      [JAWS] at org.jboss.ejb.EntityContainer.createHome(EntityContainer.java:616)
      [JAWS] at java.lang.reflect.Method.invoke(Native Method)
      [JAWS] at org.jboss.ejb.EntityContainer$ContainerInterceptor.invokeHome(EntityContainer.java:843)
      [JAWS] at org.jboss.ejb.plugins.EntitySynchronizationInterceptor.invokeHome(EntitySynchronizationInterceptor.java:231)
      [JAWS] at org.jboss.ejb.plugins.EntityInstanceInterceptor.invokeHome(EntityInstanceInterceptor.java:154)
      [JAWS] at org.jboss.ejb.plugins.EntityLockInterceptor.invokeHome(EntityLockInterceptor.java:108)
      [JAWS] at org.jboss.ejb.plugins.TxInterceptorCMT.invokeNext(TxInterceptorCMT.java:135)
      [JAWS] at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:307)
      [JAWS] at org.jboss.ejb.plugins.TxInterceptorCMT.invokeHome(TxInterceptorCMT.java:86)
      [JAWS] at org.jboss.ejb.plugins.SecurityInterceptor.invokeHome(SecurityInterceptor.java:103)
      [JAWS] at org.jboss.ejb.plugins.LogInterceptor.invokeHome(LogInterceptor.java:106)
      [JAWS] at org.jboss.ejb.EntityContainer.invokeHome(EntityContainer.java:420)
      [JAWS] at org.jboss.ejb.plugins.jrmp.server.JRMPContainerInvoker.invokeHome(JRMPContainerInvoker.java:370)
      [JAWS] at java.lang.reflect.Method.invoke(Native Method)
      [JAWS] at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:241)
      [JAWS] at sun.rmi.transport.Transport$1.run(Transport.java:152)
      [JAWS] at java.security.AccessController.doPrivileged(Native Method)
      [JAWS] at sun.rmi.transport.Transport.serviceCall(Transport.java:148)
      [JAWS] at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:465)
      [JAWS] at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:706)
      [JAWS] at java.lang.Thread.run(Thread.java:484)

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        • 1. Re: Oracle 8i and CMPFieldMetaData null pointer exception
          alu1344
          alu1344 Sep 24, 2001 4:57 PM (in response to flesner)

          Please post your JAWS settings for that entity bean and, if possible, drop the table, let JAWS create the table for you and try again.

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          • 2. Re: Oracle 8i and CMPFieldMetaData null pointer exception
            flesner
            flesner Oct 4, 2001 1:42 AM (in response to flesner)

            it doesn't matter if i drop the table or not, and i'm using these files (and it's JBoss 2.4.1 and jdk 1.3.1_01):

            --jaws.xml

            <enterprise-beans>

            <ejb-name>Field</ejb-name>
            <table-name>FIELD</table-name>
            <create-table>false</create-table>
            <cmp-field>
            <field-name>name</field-name>
            <column-name>name</column-name>
            </cmp-field>
            <cmp-field>
            <field-name>descript</field-name>
            <column-name>descript</column-name>
            </cmp-field>
            <cmp-field>
            <field-name>area</field-name>
            <column-name>area</column-name>
            </cmp-field>

            </enterprise-beans>

            --jboss.xml
            <?xml version="1.0" encoding="UTF-8"?>

            false
            <enterprise-beans>

            <ejb-name>Spring</ejb-name>
            <jndi-name>ejb/session/Spring</jndi-name>


            <ejb-name>Field</ejb-name>
            <jndi-name>ejb/entity/Field</jndi-name>

            </enterprise-beans>

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