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Struts & Hibernate
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| | | Structs - NoClassDefFoundError | Structs - NoClassDefFoundError 2003-11-29 - By Glenn
Back
Hi I have the problem below where the ActionForm seems be unable to be found
when my class com.pp.webDomain.actions.animal.AnimalTypeForm inherit from my
AbstractForm (subclasses the structs actionForm class). However, if I directly
inherit from org.apache.struts.action.ActionForm  (normal struts class) it is
works fine.
I have checked the following :
1) Struct.jar is in /WEB-INF/Lib directory
2) AnimalTypeForm is in the classes directory
3) Config.xml is in the /WEB-INF directory along with all the strut's .tld files
4) Check that my abstract class in present in the correct directory /WEB-INF
/classes/com/common/webDomain/AbstractForm.
5) Check that my abstract class in present in the correct directory /WEB-INF
/classes/com/pp/webDomain/actions/animal/AnimalTypeForm.
5) Check that the com.pp.webDomain.actions.animal.AnimalTypeForm (concrete
class) inherits okay from my abstract class
I have an class called AbstractForm which subclasses org.apache.struts.action
.ActionForm. This resides in the package.
Anyone have any ideas please ???
********************** Error **********************
ERROR org.apache.struts.util.RequestUtils - Error creating form bean of class
com.pp.webDomain.actions.animal.AnimalTypeForm
java.lang.NoClassDefFoundError : org/apache/struts/action/ActionForm
at java.lang.ClassLoader (Native Method)
at java.lang.ClassLoader (ClassLoader.java:488)
at java.security.SecureClassLoader (SecureClassLoader.java
:106)
at weblogic.utils.classloaders.GenericClassLoader.findLocalClass
(GenericClassLoader.java:401)
at weblogic.utils.classloaders.GenericClassLoader.findClass
(GenericClassLoader.java:162)
at java.lang.ClassLoader (ClassLoader.java:294)
at java.lang.ClassLoader (ClassLoader.java:287)
at java.lang.ClassLoader (ClassLoader.java:250)
at weblogic.utils.classloaders.ChangeAwareClassLoader.loadClass
(ChangeAwareClassLoader.java:41)
at java.lang.ClassLoader (ClassLoader.java:310)
at java.lang.ClassLoader (Native Method)
at java.lang.ClassLoader (ClassLoader.java:488)
at java.security.SecureClassLoader (SecureClassLoader.java
:106)
at weblogic.utils.classloaders.GenericClassLoader.findLocalClass
(GenericClassLoader.java:401)
at weblogic.utils.classloaders.GenericClassLoader.findClass
(GenericClassLoader.java:162)
at weblogic.utils.classloaders.ChangeAwareClassLoader.findClass
(ChangeAwareClassLoader.java:62)
at java.lang.ClassLoader (ClassLoader.java:294)
at java.lang.ClassLoader (ClassLoader.java:250)
at weblogic.utils.classloaders.ChangeAwareClassLoader.loadClass
(ChangeAwareClassLoader.java:41)
at org.apache.struts.util.RequestUtils (RequestUtils
.java:190)
at org.apache.struts.util.RequestUtils (RequestUtils
.java:216)
at org.apache.struts.util.RequestUtils (RequestUtils
.java:610)
at org.apache.struts.action.RequestProcessor
(RequestProcessor.java:349)
at org.apache.struts.action.RequestProcessor (RequestProcessor
.java:243)
at org.apache.struts.action.ActionServlet (ActionServlet.java
:1109)
at org.apache.struts.action.ActionServlet (ActionServlet.java:452)
at javax.servlet.http.HttpServlet (HttpServlet.java:740)
at javax.servlet.http.HttpServlet (HttpServlet.java:853)
at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction
.run(ServletStubImpl.java:1058)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet
(ServletStubImpl.java:401)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:20)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl
.java:27)
at weblogic.servlet.internal.WebAppServletContext
$ServletInvocationAction.run(WebAppServletContext.java:5451)
at weblogic.security.service.SecurityServiceManager.runAs
(SecurityServiceManager.java:780)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet
(WebAppServletContext.java:3105)
at weblogic.servlet.internal.ServletRequestImpl.execute
(ServletRequestImpl.java:2588)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:213)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:189)
********************** End of Error **********************
********************** AbstractForm **********************
package com.common.webDomain;
import org.apache.struts.action.ActionForm ;
public class AbstractForm extends ActionForm
{
public AbstractForm()
{
}
}
********************** End of AbstractForm **********************
********************** AnimalTypeForm **********************
package com.pp.webDomain.actions.animal;
import org.apache.struts.action.ActionForm ;
import org.apache.struts.action.ActionMapping ;
import javax.servlet.http.HttpServletRequest ;
import com.pp.webDomain.WebTierController;
import com.common.webDomain.AbstractForm;
import org.apache.struts.action.ActionErrors ;
import org.apache.struts.action.ActionError ;
import com.pp.entityDomain.animalType.AnimalTypeTO;
import org.apache.log4j.Logger ;
public class AnimalTypeForm extends AbstractForm
{
static private Logger logger = Logger.getLogger( AnimalTypeForm.class );
public AnimalTypeForm()
{
logger.info( "Enter Creating AnimalTypeForm " );
animalType = new AnimalTypeTO();
logger.info( "Exit Creating AnimalTypeForm " );
}
public AnimalTypeTO getAnimalType()
{
return animalType;
}
public void setAnimalType( AnimalTypeTO animalType )
{
this.animalType = animalType;
}
public void reset( ActionMapping actionMapping, HttpServletRequest req )
{
logger.info( "Enter AnimalTypeForm.reset" );
if ( animalType != null )
{
animalType.setId( null );
animalType.setCrossBreed( Boolean.FALSE );
animalType.setName( null );
}
logger.info( "Exit AnimalTypeForm.reset" );
}
public ActionErrors validate( ActionMapping actionMapping,
HttpServletRequest req )
{
logger.info( "Enter AnimalTypeForm.validate" );
ActionErrors errors = new ActionErrors();
AnimalTypeTO animalTypeMVO = this.getAnimalType();
String typeName = animalTypeMVO.getName();
if ( typeName == null || typeName.equals( "" ) )
{
errors.add( "name", new ActionError( "error.animaltype.name" ) );
}
logger.info( "Exit AnimalTypeForm.validate" );
return errors;
}
private AnimalTypeTO animalType = null;
}
********************** End of AnimalTypeForm **********************
===========================================================================
To unsubscribe, send email to listserv@(protected) and include in the body
of the message "signoff J2EE-INTEREST". For general help, send email to
listserv@(protected) and include in the body of the message "help".
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=iso-8859 (See http://iso-8859.ora-code.com)-1">
<META content="MSHTML 6.00.2800.1276" name=GENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=#ffffff>
<DIV><FONT face=Arial size=2>Hi I have the problem below where the ActionForm
seems be unable to be found when my class
<STRONG>com.pp.webDomain.actions.animal.AnimalTypeForm </STRONG>inherit from my
<STRONG>AbstractForm </STRONG>(subclasses the structs actionForm class).
However, if I directly inherit from <STRONG>org.apache.struts.action.ActionForm
</STRONG>(normal struts class) it is works fine. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I have checked the following :</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>1) Struct.jar is in /WEB-INF/Lib
directory</FONT></DIV>
<DIV><FONT face=Arial size=2>2) AnimalTypeForm is in the classes
directory</FONT></DIV>
<DIV><FONT face=Arial size=2>3) Config.xml is in the /WEB-INF directory along
with all the strut's .tld files</FONT></DIV>
<DIV><FONT face=Arial size=2>4) Check that my abstract class in present in the
correct directory
/WEB-INF/classes/com/common/webDomain/AbstractForm.</FONT></DIV>
<DIV><FONT face=Arial size=2>5) Check that my abstract class in present in the
correct directory
/WEB-INF/classes/com/pp/webDomain/actions/animal/AnimalTypeForm.</FONT></DIV>
<DIV><FONT face=Arial size=2>
<DIV><FONT face=Arial size=2>5) Check that the
com.pp.webDomain.actions.animal.AnimalTypeForm (concrete class) inherits okay
from my abstract class</FONT></FONT></DIV></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I have an class called AbstractForm which
subclasses org.apache.struts.action.ActionForm This resides in the
package. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Anyone have any ideas please ???</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial
size=2>**********************
Error
********************** </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>ERROR org.apache.struts.util.RequestUtils - Error
creating form bean of class
com.pp.webDomain.actions.animal.AnimalTypeForm<BR>java.lang
.NoClassDefFoundError:
org/apache/struts/action/ActionForm<BR>
at java.lang.ClassLoader (Native
Method)<BR> at
java.lang.ClassLoader (ClassLoader.java:488)<BR>
at
java.security.SecureClassLoader (SecureClassLoader.java:106)<BR>
at
weblogic.utils.classloaders.GenericClassLoader.findLocalClass
(GenericClassLoader.java:401)<BR>
at
weblogic.utils.classloaders.GenericClassLoader.findClass(GenericClassLoader
.java:162)<BR>
at
java.lang.ClassLoader (ClassLoader.java:294)<BR>
at
java.lang.ClassLoader (ClassLoader.java:287)<BR>
at
java.lang.ClassLoader (ClassLoader.java:250)<BR>
at
weblogic.utils.classloaders.ChangeAwareClassLoader.loadClass
(ChangeAwareClassLoader.java:41)<BR>
at
java.lang.ClassLoader (ClassLoader.java:310)<BR>
at java.lang.ClassLoader (Native
Method)<BR> at
java.lang.ClassLoader (ClassLoader.java:488)<BR>
at
java.security.SecureClassLoader (SecureClassLoader.java:106)<BR>
at
weblogic.utils.classloaders.GenericClassLoader.findLocalClass
(GenericClassLoader.java:401)<BR>
at
weblogic.utils.classloaders.GenericClassLoader.findClass(GenericClassLoader
.java:162)<BR>
at
weblogic.utils.classloaders.ChangeAwareClassLoader.findClass
(ChangeAwareClassLoader.java:62)<BR>
at
java.lang.ClassLoader (ClassLoader.java:294)<BR>
at
java.lang.ClassLoader (ClassLoader.java:250)<BR>
at
weblogic.utils.classloaders.ChangeAwareClassLoader.loadClass
(ChangeAwareClassLoader.java:41)<BR>
at
org.apache.struts.util.RequestUtils (RequestUtils.java:190)<BR>
at
org.apache.struts.util.RequestUtils (RequestUtils.java:216)
<BR>
at
org.apache.struts.util.RequestUtils (RequestUtils.java:610)<BR>
at
org.apache.struts.action.RequestProcessor (RequestProcessor
.java:349)<BR>
at
org.apache.struts.action.RequestProcessor (RequestProcessor.java:243)<BR
>
at
org.apache.struts.action.ActionServlet (ActionServlet.java:1109)<BR>
at
org.apache.struts.action.ActionServlet (ActionServlet.java:452)<BR>
at
javax.servlet.http.HttpServlet (HttpServlet.java:740)<BR>
at
javax.servlet.http.HttpServlet (HttpServlet.java:853)<BR>
at
weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run
(ServletStubImpl.java:1058)<BR>
at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
:401)<BR>
at
weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:20)<BR>
at
weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27)<BR>
at
weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run
(WebAppServletContext.java:5451)<BR>
at
weblogic.security.service.SecurityServiceManager.runAs(SecurityServiceManager
.java:780)<BR>
at
weblogic.servlet.internal.WebAppServletContext.invokeServlet
(WebAppServletContext.java:3105)<BR>
at
weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java
:2588)<BR>
at
weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:213)<BR>
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:189)</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>**********************
End
of Error
********************** </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial
size=2>**********************
AbstractForm
********************** </FONT></DIV>
<DIV><FONT face=Arial size=2>package com.common.webDomain;</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>import
org.apache.struts.action.ActionForm ;</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>public class AbstractForm extends
ActionForm<BR>{<BR> public AbstractForm()<BR>
{<BR> }<BR>}</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial
size=2>********************** End of
AbstractForm **********************</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>
<DIV><FONT face=Arial
size=2>**********************  
;AnimalTypeForm
**********************</FONT></DIV></FONT></DIV>
<DIV><FONT face=Arial size=2>package
com.pp.webDomain.actions.animal;</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>import
org.apache.struts.action.ActionForm ;<BR>import
org.apache.struts.action.ActionMapping ;<BR>import
javax.servlet.http.HttpServletRequest ;<BR>import
com.pp.webDomain.WebTierController;<BR>import
com.common.webDomain.AbstractForm;<BR>import
org.apache.struts.action.ActionErrors ;<BR>import
org.apache.struts.action.ActionError ;<BR>import
com.pp.entityDomain.animalType.AnimalTypeTO;<BR>import
org.apache.log4j.Logger ;</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>public class AnimalTypeForm extends
AbstractForm<BR>{<BR> static private Logger logger =
Logger.getLogger( AnimalTypeForm.class );</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2> public
AnimalTypeForm()<BR> {<BR>
logger.info( "Enter Creating AnimalTypeForm "
);<BR> animalType = new
AnimalTypeTO();<BR> logger.info( "Exit Creating
AnimalTypeForm " );<BR> }</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2> public AnimalTypeTO
getAnimalType()<BR> {<BR> return
animalType;<BR> }</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2> public void setAnimalType(
AnimalTypeTO animalType )<BR> {<BR>
this.animalType = animalType;<BR> }</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2> public void reset( ActionMapping
actionMapping, HttpServletRequest req )<BR>
{<BR> logger.info( "Enter AnimalTypeForm.reset"
);<BR> if ( animalType != null
)<BR>
{<BR> animalType.setId( null
);<BR> animalType.setCrossBreed
(
Boolean.FALSE );<BR>
animalType.setName( null );<BR>
}<BR> logger.info( "Exit AnimalTypeForm.reset"
);<BR> }</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2> public ActionErrors validate(
ActionMapping actionMapping, HttpServletRequest req )<BR>
{<BR> logger.info( "Enter AnimalTypeForm.validate
"
);<BR> ActionErrors
errors = new
ActionErrors();<BR> AnimalTypeTO animalTypeMVO =
this.getAnimalType();<BR> String
typeName =
animalTypeMVO.getName();<BR> if ( typeName ==
null
|| typeName.equals( "" ) )<BR>
{<BR> errors.add( "name", new
ActionError( "error.animaltype.name" ) );<BR>
}<BR> logger.info( "Exit AnimalTypeForm.validate"
);<BR> return errors;<BR>
}</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2> private AnimalTypeTO animalType =
null;<BR>}</FONT></DIV>
<DIV> </DIV><FONT face=Arial size=2>
<DIV><BR> </DIV>
<DIV>
<DIV><FONT face=Arial
size=2>********************** End of
AnimalTypeForm
**********************</FONT></DIV></DIV></FONT></BODY></HTML>
===========================================================================
To unsubscribe, send email to listserv@(protected) and include in the body
of the message "signoff J2EE-INTEREST". For general help, send email to
listserv@(protected) and include in the body of the message "help".
<p>
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