I've deployed an application(EAR) on IBM WebSphere succesffully. When I hit the URL - "https://WAS-External-IP:PORT/ProjectName/OtherInfo/ServletName, I get the error:
Error 404: javax.servlet.UnavailableException: SRVE0200E: Servlet [ServletName]: Could not find required class - class ServletName : javax.servlet.ServletException: Project's Exception: com.sun.crypto.provider.SealedObjectForKeyProtector
From the post - identify whether is code running on app engine runtime (Java)
I figure that GAE runtime 1.9.23 has the fix for runtime whitelisting, which omitted one or more classes needed to load the JCEKS key store. However, I can't figure out where can I find the GAE runtime version in my WebSphere.
When the same code is run when Application is installed on a Windows box, I don't get this error.
When I looked at the trace logs, I get the error:
Caused by: java.lang.IllegalStateException: No implementation could be
SystemErr R at jarName.classname.methodName(className.java:LineNumber)
From debugging, I see the class-name string is not loaded in the classpath. However, when I checked the jars available in the path mentioned in the classpath, I can see the JAR is present there. The JAR is also present in the pom file of the project.
I'm not able to set debug points at static blocks of missing class to see what is going wrong.
Windows and Linux often return list of files in different order, which can lead to jars being added to the classpath in a different order. How can I make Linux read the missing JAR in the classpath the way Windows does?
Related
Our web service client in live environment recently got the exception:
java.lang.NoClassDefFoundError: Could not initialize class com.sun.xml.internal.ws.fault.SOAPFaultBuilder
at com.sun.xml.internal.ws.client.sei.SyncMethodHandler.invoke(SyncMethodHandler.java:107)
at com.sun.xml.internal.ws.client.sei.SyncMethodHandler.invoke(SyncMethodHandler.java:78)
at com.sun.xml.internal.ws.client.sei.SEIStub.invoke(SEIStub.java:135)
at com.sun.proxy.$Proxy146.search(Unknown Source)
....
I've done a lot of search online, including a few posts here at StackOverflow:
Catching webservice exception with CXF: NoClassDefFoundError: SOAPFaultBuilder
Could not initialize class com.sun.xml.internal.ws.fault.SOAPFaultBuilder
java.lang.NoClassDefFoundError: Could not initialize class com.sun.xml.internal.ws.fault.SOAPFaultBuilder
And my understanding was our client received a SOAP Fault from the server and it's missing some jar file. So I'm trying to solve the problem by first recreating it.
I created a simple Web Service server project in Eclipse which has a web method throws a simple fault class annotated by #WebFault. Then I created a simple Web Service client project which consumes the web method. The client project doesn't have any additional libraries/jars in its classpath; all it has is the JRE. To my surprise, it didn't throw the NoClassDefFoundError exception! Instead, I got the javax.xml.ws.soap.SOAPFaultException I defined on the server side.
The class SOAPFaultBuilder is indeed in rt.jar in JRE. So the simple web service projects I created probably just work as they should. However, how come the web service client in our live environment throw the NoClassDefFoundError exception? That project definitely has rt.jar in the classpath.
Can anyone please shed some light on this problem? If it's missing some jar files (either from the jaxws RI or Apache CXF or others), why would the super simple client I created didn't throw the error? Both the live environment and my local environment use Java7u51.
I have encountered the same problem and I could subsequently resolve this.
Due to the following error mentioned in the Problem, the underlying cause of the SOAP Fault could not be found.
I followed the steps mentioned in the following link, to identify the reason for NoClassDefFoundError.
http://javarevisited.blogspot.in/2011/06/noclassdeffounderror-exception-in.html
I could find the following errors in my application log:
java.lang.ExceptionInInitializerError
Caused by: java.lang.ClassCastException: com.sun.xml.bind.v2.runtime.JAXBContextImpl cannot be cast to com.sun.xml.internal.bind.api.JAXBRIContext
The reason for the above classcast exception is due to conflicting jar files.
rt.jar (this is present in jre classpath)
jaxb-impl-2.0.1.jar (this is present in my application classpath).
I have removed the file jaxb-impl-2.0.1.jar from my classpath and the actual error is gone.
I had the same erorr and I resolved this issue by deleting the jax-impl.jar from the tomcat lib folder. It was a possible conflict of the jaxb jar versions with one of my webapps installed in tomcat.
http://programtalk.com/java/i-was-running-gwt-application-on-tomca/
I've got into a scenario where I have to get an Axis2 based ws consumer working within WebMethods as a java service. I've implemented the ws consumer first in netbeans just to see if it works and thus i found that the minimal amount of jars I'll require are the following:
[ xmlschema-1.4.7.jar, apache-mime4j-core-0.7.2.jar,
axiom-api-1.2.13.jar, axiom-impl-1.2.13.jar, axis2-adb-1.6.2.jar,
axis2-kernel-1.6.2.jar, axis2-transport-http-1.6.2.jar,
axis2-transport-local-1.6.2.jar, commons-codec-1.3.jar,
commons-httpclient-3.1.jar, commons-logging-1.1.1.jar,
httpcore-4.0.jar, mail-1.4.jar, neethi-3.0.2.jar, wsdl4j-1.6.2.jar ]
I've uploaded these jar files under the IS/packages/{package_name}/code/jars folder. Whenever I try to execute the java service that would send the request and process the response I get the following exception:
java.lang.reflect.InvocationTargetException:
org.apache.axiom.om.OMFactory.getMetaFactory()Lorg/apache/axiom/om/OMMetaFactory;
From the IS error log file I found that the actual error message is as follows:
org.apache.axiom.om.OMFactory.getMetaFactory()Lorg/apache/axiom/om/OMMetaFactory;
Caused by: java.lang.reflect.InvocationTargetException: null Caused
by:
java.lang.NoSuchMethodError:org.apache.axiom.om.OMFactory.getMetaFactory()Lorg/apache/axiom/om/OMMetaFactory;
The platform is WebMethods 8.2 under Linux environment. The JDK version is 1.6.0_32 and the application server under WebMethods is Jetty.
Actually the solve of this problem was a bit more tricky. First of all I manually had to configure the manifest file of the package on the IS server to use the jars provided in the package abnd thus it wouldn't get in conflict with the Axis used by the IS itself. On the other hand I had to manually add the ClassLoader because WebMethods can't use META-INF based information from jar files as it seems. To solve this problem simply use:
System.setProperty("org.apache.axiom.om.OMMetaFactory", "org.apache.axiom.om.impl.llom.factory.OMLinkedListMetaFactory");
That solves all the problems.
I am trying to add metrics library to existing webservice on WAS 7. I am getting below error
Error 404: javax.servlet.UnavailableException: SRVE0203E: Servlet [AdminServlet]: com.yammer.metrics.reporting.AdminServlet was found, but is missing another required class. SRVE0206E: This error typically implies that the servlet was originally compiled with classes which cannot be located by the server. SRVE0187E: Check your class path to ensure that all classes required by the servlet are present.SRVE0210I: This problem can be debugged by recompiling the servlet using only the classes in the application's runtime class path SRVE0234I
What are the other run-time dependencies required for metrics-servlet-2.2.0?
I have metrics-core-2.2.0.jar and metrics-servlet-2.2.0.jar in my WEB-INF\lib folder.
Threads, ping and healthcheck servlets work fine.
I think your missing some more required jars, are you not using maven or gradle for dependency management
Please refer here to know all required jars that metrics-servlet-2.2.0.jar depends on. http://mvnrepository.com/artifact/com.yammer.metrics/metrics-servlets/3.0.0-BETA1
My suggestion is, it is always difficult to maintain dependencies without Maven/Gradle or any other build tools :).
I am using Spring 3.05 and DWR 3.0rc1 in my application for making AJAX calls. In local environment, i.e. Eclipse & Tomcat Server, it's working fine but in Clustered Environment I am getting the following errors while invoking DWR and a script error is coming saying DWR is not defined, but I am able to see myApplication/dwr/index.html properly.
Error Log:
Skipping 'script' due to NoClassDefFoundError on org.directwebremoting.create.ScriptedCreator. Cause: org/apache/bsf/BSFException
Skipping 'pageflow' due to ClassNotFoundException on org.directwebremoting.beehive.PageFlowCreator. Cause: Beehive/Weblogic jar file not available.
adding creator type: none = class org.directwebremoting.create.NullCreator
adding creator type: new = class org.directwebremoting.create.NewCreator
Please help me out
Looks to me that jars are not included in the classpath. Can you please check whether it is included?
I am developing an application for WebSphere 6.1 which uses a Java servlet. Within my servlet, I have defined a serial vesion ID of 1L. Upon deploying and running my application, I am receiving a LinkageError of the following type (from the server log):
[5/9/11 15:14:26:868 EDT] 0000001c WebApp
E [Servlet Error]-[ManageRecordsConsumerServlet]: java.lang.Exception:
java.lang.LinkageError: LinkageError while defining class:
<redacted>.docindexupdate.batch.servlet.ManageRecordsConsumerServlet
Could not be defined due to: (<redacted>/docindexupdate/batch/servlet
/ManageRecordsConsumerServlet) class name must be a string at offset=2074
This is often caused by having a class defined at multiple
locations within the classloader hierarchy. Other potential causes
include compiling against an older or newer version of the class
that has an incompatible method signature.
I'm not sure what the issue is. I was seeing this previously before defining a serial version uid and figured that by defining that and being consistent, future updates to the class file would run successfully. There are no errors during compilation or deployment to the server. Is it possible that an older version of the servlet is cached somewhere on the WebSphere instance (I am only deploying on my dev machine at the moment)?
The
class name must be a string at offset=2074
line is also confusing.
I am suspecting you have a jar that is being loaded in two different classloaders. By that I mean, your websphere server on startup loads that jar or has an endorsed directory with that jar. Also your EAR you are deploying has that jar in its lib. The two can conflict at runtime
What I would suggest is to find out which jar ManageRecordsConsumerServlet belongs to and either remove it from your EAR lib or your Websphere endorsed lib (best would be your EAR lib).
It may be versioning, but I don't thing so.
When two classes loaded by different classloader, a ClassNotFoundException is normally thrown.
When a class is passed over a wire/loaded from disk cache, VersionMismatchException is normally thrown.
When a class with different method signatures is used, NoSuchMethodError or alike is thrown.
I think this case is a corrupted class file. Could be corrupted in cache or in the JAR.