I took a quick look through and noticed one thing which looks strange. I believe that when you use a primary key class for a compound key, you should *not* make the key class a cmp member of the EJB. Rather, the EJB needs to have cmp fields which are named the same as the public fields in the primary key class. The container figures out how to map it all out. Take a look at section 9.10.1.2 of the spec. I'm pretty sure this is your problem. I seem to remember one of the Orion guys mentioning that any less-than-stellar error messages should be considered bugs to be logged in bugzilla :-) Good luck, Jeff > -----Original Message----- > From: Jim Archer [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, October 17, 2000 1:54 PM > To: Orion-Interest > Cc: Jeff Schnitzer > Subject: RE: Please help! I get null pointer exception after calling > createonan EB with EJB 2.0 CMP Orion 1.3.8... > > > OK, here is the code and deployment descriptor. I apologize > that there is a > lot here, but I have included one entity bean, a session bean > that creates > this entity bean, and the deployment descriptor. > > Eventually I am planning to move all the address information into a > dependant object, but heck, I have to get create working first ;-) > > Thanks VERY much! > > Jim > > > // CrHome.java > > package com.regtek.eb20; > > import java.rmi.RemoteException; > import java.util.*; > import javax.ejb.CreateException; > import javax.ejb.EJBHome; > import javax.ejb.FinderException; > > import com.regtek.types.RegnetCR; > import com.regtek.types.RegnetTag; > > public interface CrHome extends EJBHome { > Cr create() > throws CreateException, RemoteException; > > Cr create(RegnetCR cr) > throws CreateException, RemoteException; > > Cr findByPrimaryKey(RegnetTag primaryKey) > throws FinderException, RemoteException; > > Collection findByLastname(String lastname) > throws FinderException, RemoteException; > > Collection findByFullName(String lastname, String firstname) > throws FinderException, RemoteException; > > Collection findByEmail(String email) > throws FinderException, RemoteException; > > Collection findByPhone(String phone) > throws FinderException, RemoteException; > > Collection findAll() > throws FinderException, RemoteException; > } > > > //------------------------------------------------------------ > ------------- > ------- > > // CrEJB.java > // Cr EJB 2.0 Entity Bean > > package com.regtek.eb20; > > import java.rmi.RemoteException; > > import java.sql.*; > import java.util.Enumeration; > import java.util.Vector; > import java.util.Date; > > import javax.ejb.*; > import javax.naming.*; > import javax.sql.DataSource; > import javax.transaction.*; > > import com.regtek.types.RegnetCR; > import com.regtek.types.RegnetTag; > > public abstract class CrEJB implements EntityBean { > > protected EntityContext ejbContext; > > public void setEntityContext(EntityContext ctx) { > ejbContext = ctx; > } > > public void unsetEntityContext() { > ejbContext = null; > } > > public void ejbRemove() throws RemoveException { > } > > public void ejbLoad() { > } > > public void ejbStore() { > } > > public void ejbPostCreate() throws CreateException { > } > > // public void ejbPostCreate(RegnetTag tag) throws > CreateException { > // } > > public void ejbPostCreate(RegnetCR cr) throws CreateException { > } > > // ------------------------------------------------------------ > public RegnetTag ejbCreate() { > trace("ejbCreate() entered"); > > initToNull(); > > trace("ejbCreate() entered"); > > // In CMP, should return null. > return null; > } > > // ------------------------------------------------------------ > public RegnetTag ejbCreate(RegnetCR cr) > throws CreateException { > > trace("ejbCreate(RegnetCR cr) entered"); > > initToNull(); > > if(cr == null) > return null; > > setTag(cr.getTag()); > > setLastName(cr.getLastName()); > setFirstName(cr.getFirstName()); > setMiddleInitial(cr.getMiddleInitial()); > > setAddr1(cr.getAddr1()); > setAddr2(cr.getAddr2()); > setAddr3(cr.getAddr3()); > setCity(cr.getCity()); > setState(cr.getState()); > setPostalCode(cr.getPostalCode()); > setCountryCode(cr.getCountryCode()); > setPhone(cr.getPhone()); > setFax(cr.getFax()); > setEmail(cr.getEmail()); > > Date now = new Date(); > > setDateAdded(now); > setDateLastMod(now); > > trace("ejbCreate(RegnetCR cr) exiting"); > > > // In CMP, should return null. > return null; > } > > // ------------------------------------------------------------ > public void ejbPassivate() {} > public void ejbActivate() {} > > // ------------------------------------------------------------ > private void initToNull() > { > trace("initToNull() entered"); > > setTag(null); > setFirstName(null); > setLastName(null); > setMiddleInitial(null); > setAddr1(null); > setAddr2(null); > setAddr3(null); > setCity(null); > setState(null); > setPostalCode(null); > setCountryCode(null); > setPhone(null); > setFax(null); > setEmail(null); > setDateAdded(null); > setDateLastMod(null); > > trace("initToNull() exiting"); > } > > // --------------------------------------------------------- > private void trace(String text) > { > java.util.Date now = new java.util.Date(); > System.out.println("EB CrEJB: " + now + " " + text); > } > > > // User Methods ------------------------------------------- > public abstract RegnetTag getTag(); > public abstract void setTag(RegnetTag tag); > > public abstract String getFirstName(); > public abstract void setFirstName(String fn); > > public abstract String getLastName(); > public abstract void setLastName(String ln); > > public abstract String getMiddleInitial(); > public abstract void setMiddleInitial(String mi); > > public abstract String getAddr1(); > public abstract void setAddr1(String addr1); > > public abstract String getAddr2(); > public abstract void setAddr2(String addr2); > > public abstract String getAddr3(); > public abstract void setAddr3(String addr3); > > public abstract String getCity(); > public abstract void setCity(String city); > > public abstract String getState(); > public abstract void setState(String state); > > public abstract String getPostalCode(); > public abstract void setPostalCode(String pc); > > public abstract String getCountryCode(); > public abstract void setCountryCode(String ctryCode); > > public abstract String getPhone(); > public abstract void setPhone(String phone); > > public abstract String getFax(); > public abstract void setFax(String fax); > > public abstract String getEmail(); > public abstract void setEmail(String email); > > public abstract Date getDateAdded(); > public abstract void setDateAdded(Date now); > > public abstract Date getDateLastMod(); > public abstract void setDateLastMod(Date lastMod); > } > > > //------------------------------------------------------------ > -------------- > > // Cr.java > > // This is the Cr EB remote interface - Its a CMP EJB v1.1 EJB > > package com.regtek.eb20; > > import java.rmi.RemoteException; > import javax.ejb.EJBObject; > > import com.regtek.types.RegnetTag; > > public interface Cr extends EJBObject { > public RegnetTag getTag() throws RemoteException; > public void setTag(RegnetTag tag) throws RemoteException; > > public String getLastName() throws RemoteException; > public void setLastName(String ln) throws RemoteException; > > public String getFirstName() throws RemoteException; > public void setFirstName(String fn) throws RemoteException; > > public String getMiddleInitial() throws RemoteException; > public void setMiddleInitial(String mi) throws RemoteException; > > public String getAddr1() throws RemoteException; > public void setAddr1(String addr1) throws RemoteException; > > public String getAddr2() throws RemoteException; > public void setAddr2(String addr2) throws RemoteException; > > public String getAddr3() throws RemoteException; > public void setAddr3(String addr3) throws RemoteException; > > public String getCity() throws RemoteException; > public void setCity(String city) throws RemoteException; > > public String getState() throws RemoteException; > public void setState(String state) throws RemoteException; > > public String getPostalCode() throws RemoteException; > public void setPostalCode(String zip) throws RemoteException; > > public String getCountryCode() throws RemoteException; > public void setCountryCode(String countryCode) throws > RemoteException; > > public String getPhone() throws RemoteException; > public void setPhone(String phone) throws RemoteException; > > public String getFax() throws RemoteException; > public void setFax(String fax) throws RemoteException; > > public String getEmail() throws RemoteException; > public void setEmail(String email) throws RemoteException; > } > > > // > -------------------------------------------------------------- > ------------- > --------- > > // CreateNewCR.java > > package com.regtek.slsb; > > import java.rmi.RemoteException; > > import com.regtek.types.RegnetCR; > > > public interface CreateNewCR extends javax.ejb.EJBObject > { > public boolean makeNew(RegnetCR regCr) throws RemoteException; > } > > > //------------------------------------------------------------ > ------------- > > // CreateNewCRBean.java > > package com.regtek.slsb; > > import com.regtek.types.*; > // import com.regtek.eb_ejb_ver11.*; > import com.regtek.eb20.*; > > import java.rmi.RemoteException; > import javax.rmi.PortableRemoteObject; > > import javax.ejb.*; > import javax.naming.*; > > public class CreateNewCRBean implements javax.ejb.SessionBean > { > public SessionContext context; > private javax.naming.Context jndiContext = null; > > // > --------------------------------------------------------------- > public boolean makeNew(RegnetCR regCr) throws RemoteException > { > System.out.println("NewCRBean.makeNew() called"); > > Context context = null; > CrHome home = null; > Cr cr = null; > > try > { > System.out.println("NewCRBean.makeNew() > - getting initial context"); > context = new InitialContext(); > > System.out.println("NewCRBean.makeNew() > - lookup"); > Object obj = > context.lookup("java:comp/env/ejb/CrHomeEb"); > > System.out.println("NewCRBean.makeNew() > - get the home object"); > home = (CrHome) > PortableRemoteObject.narrow(obj, CrHome.class); > > System.out.println("NewCRBean.makeNew() > - call create"); > cr = home.create(regCr); > } > catch(RemoteException e) > { > > System.err.println("RE:System/communication error: " + > e.getMessage()); > } > catch(NamingException e) > { > System.err.println("NE:Communication > error: " + e.getMessage()); > } > catch(CreateException e) > { > System.err.println("CE:Error creating > contact record: " + > e.getMessage()); > } > catch(ClassCastException e) > { > System.err.println("CCE:Error narrowing > object: " + e.getMessage()); > } > > > return true; > } > > > // > --------------------------------------------------------------- > public void ejbCreate() > { > } > > // > --------------------------------------------------------------- > public void ejbActivate() > { > } > > // > --------------------------------------------------------------- > public void ejbPassivate() > { > } > > // > --------------------------------------------------------------- > public void ejbRemove() > { > } > > // > --------------------------------------------------------------- > public void setSessionContext(SessionContext ctx) > { > context = ctx; > > try > { > jndiContext = new javax.naming.InitialContext(); > } > catch(NamingException ne) > { > throw new EJBException(ne); > } > } > } > > //------------------------------------------------------------ > ------------- > -------------- > > // CreateNewCRHome.java > > package com.regtek.slsb; > > import java.rmi.RemoteException; > import javax.ejb.CreateException; > > public interface CreateNewCRHome extends javax.ejb.EJBHome > { > public CreateNewCR create() throws RemoteException, > CreateException; > } > > //------------------------------------------------------------ > ------------- > -- > > // RegnetTag.java > > /* > This class is a primary key class > */ > > package com.regtek.types; > > public class RegnetTag implements java.io.Serializable { > public static final byte UNKNOWN = 0; > public static final byte CR = 1; > public static final byte DR = 2; > public static final byte UAR = 3; > public static final byte LIDR = 4; > > private int type; > private String tagName; > private String checkChar; > > > // -------------------------------------------------------- > // Constructors > // -------------------------------------------------------- > > // This constructor creates a completely blank tag > public RegnetTag() > { > setName(""); > setType(UNKNOWN); > checkChar = null; > } > > // -------------------------------------------------------- > // When passed a name and type, this constructor creates a > // complete tag > public RegnetTag(int type, String name) > { > setName(name); > setType(type); > > caculateCheckChar(); > } > > // -------------------------------------------------------- > // This constructor will generate a unique tag of the > // passed type > public RegnetTag(int type) > { > setName(""); > setType(type); > generate(); > } > > // -------------------------------------------------------- > // This constructor will take a full tag name and set this > // RegnetTag to its values by parsing the passed string tag.. > public RegnetTag(String tagStr) > { > int one = tagStr.indexOf("-"); > int two = tagStr.lastIndexOf("-"); > int len = tagStr.length(); > > String left = tagStr.substring(0, one); > String middle = tagStr.substring(one, two); > ++two; // Increment to land on the check char > String right = tagStr.substring(two, len); > > setName(middle); > > type = UNKNOWN; > > if(left.equals("CR")) > type = CR; > > if(left.equals("DR")) > type = DR; > > if(left.equals("UAR")) > type = UAR; > > if(left.equals("LIDR")) > type = LIDR; > > String check = caculateCheckChar(); > if(!check.equals(right)) > ; // Throw an invalid tag exception > > // Done > } > > > // -------------------------------------------------------- > // public methods > // -------------------------------------------------------- > public void generate() > { > setName("GeneratedTag"); > caculateCheckChar(); > } > > > // -------------------------------------------------------- > // private methods > // -------------------------------------------------------- > private String caculateCheckChar() > { > checkChar = "X"; > return checkChar; > } > > > // -------------------------------------------------------- > // Public setters here > // -------------------------------------------------------- > > public void setName(String name) > { > tagName = name; > caculateCheckChar(); > } > > // -------------------------------------------------------- > public void setType(int type) > { > type = type; > caculateCheckChar(); > } > > > // -------------------------------------------------------- > // public getters here > // -------------------------------------------------------- > > public String getFullName() > { > String pre = ""; > > if (type == CR) > { > pre = "CR"; > } > > if (type == DR) > { > pre = "DR"; > } > > if (type == UAR) > { > pre = "UAR"; > } > > if (type == LIDR) > { > pre = "LIDR"; > } > > return pre + "-" + tagName + "-" + checkChar; > } > > // -------------------------------------------------------- > public String getName() > { > return tagName; > } > > // -------------------------------------------------------- > public int getType() > { > return type; > } > > // -------------------------------------------------------- > // These methods are required by the spec for any type to be > // used as a primary key type > // -------------------------------------------------------- > public int hashCode() > { > String str = getFullName(); > int hc = str.hashCode(); > > return hc; > } > > // -------------------------------------------------------- > public boolean equals(Object obj) > { > if(obj == null || !(obj instanceof RegnetTag)) > return false; > > String me = this.getFullName(); > String it = ((RegnetTag) obj).getFullName(); > > if(me.equals(it)) > return true; > > return false; > } > > // -------------------------------------------------------- > public String toString() > { > return this.getFullName(); > } > > } > > //------------------------------------------------------------ > ------------- > -- > > > > <?xml version="1.0"?> > <!DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise > JavaBeans 2.0//EN" "http://java.sun.com/j2ee/dtds/ejb-jar_2_0.dtd"> > <ejb-jar> > <description>RegNet</description> > <display-name>RegNet</display-name> > <enterprise-beans> > <entity> > <description>RegNet CR - Contact > Record</description> > <display-name>The com.regtek.eb20.Cr > stateless session > bean</display-name> > <ejb-name>com.regtek.eb20.Cr</ejb-name> > <home>com.regtek.eb20.CrHome</home> > <remote>com.regtek.eb20.Cr</remote> > <ejb-class>com.regtek.eb20.CrEJB</ejb-class> > <persistence-type>Container</persistence-type> > > <prim-key-class>com.regtek.types.RegnetTag</prim-key-class> > <reentrant>False</reentrant> > > > <cmp-field><field-name>tag</field-name></cmp-field> > > <cmp-field><field-name>lastName</field-name></cmp-field> > > <cmp-field><field-name>firstName</field-name></cmp-field> > > <cmp-field><field-name>middleInitial</field-name></cmp-field> > > <cmp-field><field-name>addr1</field-name></cmp-field> > > <cmp-field><field-name>addr2</field-name></cmp-field> > > <cmp-field><field-name>addr3</field-name></cmp-field> > > <cmp-field><field-name>city</field-name></cmp-field> > > <cmp-field><field-name>state</field-name></cmp-field> > > <cmp-field><field-name>postalCode</field-name></cmp-field> > > <cmp-field><field-name>countryCode</field-name></cmp-field> > > <cmp-field><field-name>phone</field-name></cmp-field> > > <cmp-field><field-name>fax</field-name></cmp-field> > > <cmp-field><field-name>email</field-name></cmp-field> > > <cmp-field><field-name>dateAdded</field-name></cmp-field> > > <cmp-field><field-name>dateLastMod</field-name></cmp-field> > > <primkey-field>tag</primkey-field> > </entity> > > <entity> > <description>RegNet UAR - Contact > Record</description> > > <display-name>com.regtek.eb20.UarEJB</display-name> > <ejb-name>com.regtek.eb20.UarEJB</ejb-name> > <home>com.regtek.eb20.UarHome</home> > <remote>com.regtek.eb20.Uar</remote> > <ejb-class>com.regtek.eb20.UarEJB</ejb-class> > <persistence-type>Container</persistence-type> > > <prim-key-class>com.regtek.types.RegnetTag</prim-key-class> > <reentrant>False</reentrant> > > > <cmp-field><field-name>tag</field-name></cmp-field> > > <cmp-field><field-name>password</field-name></cmp-field> > > <cmp-field><field-name>personal</field-name></cmp-field> > > <cmp-field><field-name>endUser</field-name></cmp-field> > > <cmp-field><field-name>entityName</field-name></cmp-field> > > <cmp-field><field-name>addr1</field-name></cmp-field> > > <cmp-field><field-name>addr2</field-name></cmp-field> > > <cmp-field><field-name>addr3</field-name></cmp-field> > > <cmp-field><field-name>city</field-name></cmp-field> > > <cmp-field><field-name>state</field-name></cmp-field> > > <cmp-field><field-name>postalCode</field-name></cmp-field> > > <cmp-field><field-name>countryCode</field-name></cmp-field> > > <cmp-field><field-name>phone</field-name></cmp-field> > > <cmp-field><field-name>fax</field-name></cmp-field> > > <cmp-field><field-name>crIsOwned</field-name></cmp-field> > <cmp-field><field-name>cr</field-name></cmp-field> > <ejb-ref> > <ejb-ref-name>ejb/CrHomeEb</ejb-ref-name> > <ejb-ref-type>Entity</ejb-ref-type> > <home>com.regtek.eb20.CrHome</home> > <remote>com.regtek.eb20.Cr</remote> > </ejb-ref> > <primkey-field>tag</primkey-field> > </entity> > <session> > <description>Create a CR</description> > > <display-name>com.regtek.slsb.CreateNewCR</display-name> > <ejb-name>com.regtek.slsb.CreateNewCR</ejb-name> > <home>com.regtek.slsb.CreateNewCRHome</home> > <remote>com.regtek.slsb.CreateNewCR</remote> > > <ejb-class>com.regtek.slsb.CreateNewCRBean</ejb-class> > <session-type>Stateless</session-type> > <transaction-type>Container</transaction-type> > <ejb-ref> > <ejb-ref-name>ejb/CrHomeEb</ejb-ref-name> > <ejb-ref-type>Entity</ejb-ref-type> > <home>com.regtek.eb20.CrHome</home> > <remote>com.regtek.eb20.Cr</remote> > </ejb-ref> > </session> > > <session> > <description>Create a UAR</description> > > <display-name>com.regtek.slsb.CreateNewUAR</display-name> > > <ejb-name>com.regtek.slsb.CreateNewUAR</ejb-name> > <home>com.regtek.slsb.CreateNewUARHome</home> > <remote>com.regtek.slsb.CreateNewUAR</remote> > > <ejb-class>com.regtek.slsb.CreateNewUARBean</ejb-class> > <session-type>Stateless</session-type> > <transaction-type>Container</transaction-type> > <ejb-ref> > <ejb-ref-name>ejb/UarHomeEb</ejb-ref-name> > <ejb-ref-type>Entity</ejb-ref-type> > <home>com.regtek.eb20.UarHome</home> > <remote>com.regtek.eb20.Uar</remote> > </ejb-ref> > <ejb-ref> > <ejb-ref-name>ejb/CrHomeEb</ejb-ref-name> > <ejb-ref-type>Entity</ejb-ref-type> > <home>com.regtek.eb20.CrHome</home> > <remote>com.regtek.eb20.Cr</remote> > </ejb-ref> > </session> > </enterprise-beans> > <relationships> > <ejb-relation> > <ejb-relation-name>UAR-CR</ejb-relation-name> > <ejb-relationship-role> > <ejb-relationship-role-name> > UAR-has-CR > </ejb-relationship-role-name> > <multiplicity>one</multiplicity> > <role-source> > > <ejb-name>com.regtek.eb20.UarEJB</ejb-name> > </role-source> > <cmr-field> > > <cmr-field-name>cr</cmr-field-name> > > <cmr-field-type>com.regtek.eb20.CrEJB</cmr-field-type> > </cmr-field> > </ejb-relationship-role> > <ejb-relationship-role> > <ejb-relationship-role-name> > CR-belongsto-UAR > </ejb-relationship-role-name> > <multiplicity>one</multiplicity> > <role-source> > > <ejb-name>com.regnet.eb20.UarEJB</ejb-name> > </role-source> > </ejb-relationship-role> > </ejb-relation> > > </relationships> > > <assembly-descriptor> > <security-role> > <description>Users</description> > <role-name>users</role-name> > </security-role> > </assembly-descriptor> > </ejb-jar> > > > > > > > > > > --On Tuesday, October 17, 2000 11:32 AM -0700 Jeff Schnitzer > <[EMAIL PROTECTED]> wrote: > > > I have had no problems creating CMP entity beans from > session beans with > > EJB2.0. Seems to work as advertsied :-) > > > > I suggest posting your code and descriptors; I'll take a > look, and the > > more examples of EJB2.0 beans floating around the better :-) > > > > Jeff > > > >> -----Original Message----- > >> From: Jim Archer [mailto:[EMAIL PROTECTED]] > >> Sent: Monday, October 16, 2000 4:18 PM > >> To: Orion-Interest > >> Subject: Please help! I get null pointer exception after > >> calling create > >> onan EB with EJB 2.0 CMP Orion 1.3.8... > >> > >> > >> > >> Hi All... > >> > >> Please help me out wityh this if you can. I'm really stuck > >> and already > >> behind schedual, so any ideas would be appreciated... > >> > >> I'm using Orion 1.3.8 and EJB 2.0 for CMP. > >> > >> I have written a fairley simple stateless session bean that's > >> job is to > >> just create a particular entity bean and populate it. This > >> session bean is > >> called from a servlet. > >> > >> When the session bean calls create on the home interface > >> object of the > >> entity bean it wants to create, the create method seems to > >> execute properly > >> and returns null. This seems true reguardless of which of two > >> create() > >> methods I call. > >> > >> After the create() method returns but before the next line > of code is > >> executed, Orion throws the following exception: > >> > >> java.lang.NullPointerException > >> at > >> > CrHome_EntityHomeWrapper7.hashCode(CrHome_EntityHomeWrapper7.java:127 > >> ) > >> at com.evermind.util.ExternalHashSet.get(JAX) > >> at > >> > CrHome_EntityHomeWrapper7.create(CrHome_EntityHomeWrapper7.java:335) > >> at > >> com.regtek.slsb.CreateNewCRBean.makeNew(CreateNewCRBean.java:41) > >> at > >> > CreateNewCR_StatelessSessionBeanWrapper2.makeNew(CreateNewCR_Stateles > >> sSessionBeanWrapper2.java:54) > >> at > com.regtek.protocol_servlets.MakeCR.doPost(MakeCR.java:92) > >> at javax.servlet.http.HttpServlet.service(HttpServlet.java) > >> at javax.servlet.http.HttpServlet.service(HttpServlet.java) > >> at javax.servlet.http.HttpServlet.service(HttpServlet.java) > >> at com.evermind.server.http.d1.si(JAX) > >> at com.evermind.server.http.d1.forward(JAX) > >> at com.evermind.server.http.ed.sp(JAX) > >> at com.evermind.server.http.ed.so(JAX) > >> at com.evermind.util.f.run(JAX) > >> > >> Of course, I have a pile of code and descriptors, but didn't > >> want to post > >> all that. If it is necessary, I will do so. Its not that I > >> didn't want to, > >> but I'm not sure which of it is relevant to this problem and > >> posting all of > >> it would make for a very long message. > >> > >> If someone could give me an idea of how to solve this I would > >> appreciate > >> it. I went through the archives and saw one other posting > >> from Sep 22 from > >> someone who was having this exact problem, but I could find > >> no reply. I > >> sent that guy a note, and he wrote back telling me he gave > up on it. > >> > >> I would post a bug in Bugzilla, but I'm not sure this is a > >> bug. It seems > >> too fundamental a problem to be a bug in Orion. > >> > >> Thanks very much. > >> > >> Jim > >> > >> > >> > >> > > > > > >
