Xerces error (CKFinder Java)

I get the following error when attempting to use the "Browse" button. I'm using Tomcat 7.0.21 with JD 1.6.

Sep 8, 2011 3:54:47 PM org.apache.catalina.core.ApplicationContext log
SEVERE: StandardWrapper.Throwable
java.lang.AbstractMethodError: org.apache.xerces.dom.DeferredElementImpl.getTextContent()Ljava/lang/String;
at com.ckfinder.connector.configuration.Configuration.init(Configuration.java:164)
at com.ckfinder.connector.ConnectorServlet.init(ConnectorServlet.java:272)
at javax.servlet.GenericServlet.init(GenericServlet.java:160)
at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1228)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1147)
at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:836)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:135)

Any suggestions or tips greatly appreciated.

Steve

Thu, 09/08/2011 - 23:39

typeof

Joined: 24/04/2011

Posts: 99

Re: Xerces error (CKFinder Java)

Seems like, on Tomcat, you are using other version of Xerces than the one that was used to compile CKFinder Java.

Fri, 09/09/2011 - 00:23

steveorino

Joined: 08/09/2011

Posts: 3

Re: Xerces error (CKFinder Java)

how do I find the proper version of xerces to use? Also, I did not find a xerces.jar anywhere in my Tomcat setup (e.g. not in /apache-tomcat-7.0.21/lib

I had a very old version of xerces.jar in my webapp WEB-INF/lib folder and tried replacing it with the latest jars (xercesImp-2.7.0.jar and xml-apis.jar) but I still get the same error.

Thanks,
Steve

Fri, 09/09/2011 - 08:11

typeof

Joined: 24/04/2011

Posts: 99

Re: Xerces error (CKFinder Java)

I'm not sure. The problematic method (Node.getTextContent()) was introduced into JAXP in Java 5. It seems to me that you still have some old Xerces version (older than Java 5) in your classpath.

Maybe the jar you replaced is still somewhere in the Tomcat's cache (work dir)?

Fri, 09/09/2011 - 08:45

j.swiderski

Joined: 10/05/2011

Posts: 174

Re: Xerces error (CKFinder Java)

@typeof is right.

Most likely version of xerces.jar or xercesImpl.jar that is in your web application in not in compliance with the one from java.

From what I know the solutions to this problem are :
Remove/Update xerces.jar or xercesImpl.jar from your web application
Place xerces.jar or xercesImpl.jar that you want to use in tomcat: $CATALINA_HOME/common/endorsed

Some information about Xerces were also mentioned in tomcat local docs (maybe it will be usefull): $CATALINA_HOME/webapps/docs/class-loader-howto.html

Fri, 09/09/2011 - 15:19

steveorino

Joined: 08/09/2011

Posts: 3

Re: Xerces error (CKFinder Java)

I figured it out. MyEclipse copied the old xerces.jar into a deployment folder used by Tomcat. Once the file was removed everything worked