Hello everyone,
I am having problem with loader constraint violation. I am using jboss-5.0.1.GA
with JDK 1.6. The server starts normally with welcome page of my application
but when I start to login through that page, there occurs problem which is
given below:
| exception
| javax.servlet.ServletException: Servlet.init() for servlet controller threw
exception
|
org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)
|
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:525)
|
org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)
|
| root cause
|
| java.lang.LinkageError: loader constraint violation: when resolving method
"javax.xml.parsers.DocumentBuilder.parse(Lorg/xml/sax/InputSource;)Lorg/w3c/dom/Document;"
the class loader (instance of org/jboss/classloader/spi/base/BaseClassLoader)
of the current class, np/com/remitron/admin/utility/Config, and the class
loader (instance of <bootloader>) for resolved class,
javax/xml/parsers/DocumentBuilder, have different Class objects for the type
org/xml/sax/InputSource used in the signature
| np.com.remitron.admin.utility.Config.init(Config.java:33)
|
|
Can anyone suggest me, what this exception means? and also how to solve this
problem?
The code in config.java file is given below:
| protected void init(ServletContext sctx,String xmlFile) throws Exception
| {
| InputStream is=null;
| try {
| is=sctx.getResourceAsStream(xmlFile);
| DocumentBuilderFactory
factory=DocumentBuilderFactory.newInstance();
| DocumentBuilder builder=factory.newDocumentBuilder();
| Document doc=builder.parse(new InputSource(is));
| root=doc.getDocumentElement();
|
| }
|
| finally{
| if(is!=null)
| {
| is.close();
| }
| }
| }
|
|
Thank you.
-Ritesh
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