[jdom-interest] Problem using the Crimson Parser

[HOOI Tak Keong, Henry]

Hi All, 

I'm having a hard time trying to figure out how to use the Crimson parser
instead of the Xerces one, and I was hoping someone on the list could help
me out. Based on the readme file, I included the crimson.jar, jaxp.jar and
jdom.jar into the classpath environment variable, and left out the
xerces.jar(the default one)

	SET
CLASSPATH=%MY_PROJECT%\lib\jdom.jar;%MY_PROJECT%\lib\jaxp.jar;%MY_PROJECT%\l
ib\crimson.jar

And when I ran my servlet that made a call to the parser, I got the
following Security Exception:

2001-08-17 12:09:24 - ContextManager: Adding context Ctx( /examples )
2001-08-17 12:09:24 - ContextManager: Adding context Ctx( /admin )
Starting tomcat. Check logs/tomcat.log for error messages
2001-08-17 12:09:24 - ContextManager: Adding context Ctx(  )
2001-08-17 12:09:24 - ContextManager: Adding context Ctx( /test )
2001-08-17 12:09:24 - ContextManager: Adding context Ctx( /crm )
2001-08-17 12:09:24 - ContextManager: Adding context Ctx( /sptb )
2001-08-17 12:09:24 - ContextManager: Adding context Ctx( /TestNewMVC )
PATH: C:\jakarta-tomcat-3.2.1\webapps\TestNewMVC\log\
Log Level: 0
2001-08-17 12:09:25 - PoolTcpConnector: Starting HttpConnectionHandler on
8080
2001-08-17 12:09:25 - PoolTcpConnector: Starting Ajp12ConnectionHandler on
8007
java.lang.SecurityException: sealing violation
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:234)
        at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:297)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:286)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:253)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:313)
        at
vrs.controller.MappingRules.parseMappingConfig(MappingRules.java:48)
        at vrs.controller.MappingRules.getInstance(MappingRules.java:32)
        at vrs.controller.BaseServlet.doPost(BaseServlet.java:62)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
        at
org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:4
04)
        at org.apache.tomcat.core.Handler.service(Handler.java:286)
        at
org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372
)
        at
org.apache.tomcat.core.ContextManager.internalService(ContextManager.
java:797)
        at
org.apache.tomcat.core.ContextManager.service(ContextManager.java:743
)
        at
org.apache.tomcat.service.http.HttpConnectionHandler.processConnectio
n(HttpConnectionHandler.java:210)
        at
org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:
416)
        at
org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java
:498)
        at java.lang.Thread.run(Thread.java:484)


I'm assuming that I'm receiving this error because I have extracted the
crimson, jaxp and jdom jar files out of their defult directory (e.g.
c:\jdom\lib) and am running them in my own project directory. Although this
doesn't make sense I don't know how to move on. I've searched the mailing
list already and came across a few mails with similar issues but there
didn't seem to be any answer to it. Please help me out.. Thank you..

The code I used to invoke the parser is listed below...

try {
			System.out.println("********RELOADING*********");
			SAXBuilder builder =  new SAXBuilder();
			Document doc = builder.build(thisFile);		
			Element businessrules = doc.getRootElement();

			List commands =
businessrules.getChildren("command");		
			Iterator i = commands.iterator();		
			while (i.hasNext()) {
				Element command = (Element) i.next();

				String name =
command.getChild("name").getText();
				Element pages = command.getChild("pages");
				List forwardList =
pages.getChildren("forward");
				Iterator j = forwardList.iterator();
				
				PageList pageList = new PageList();
			
				while (j.hasNext()) {
					Element forward = (Element)j.next();

					String pageName =
forward.getAttribute("name").getValue();
					String resource =
forward.getAttribute("resource").getValue();
					String sequence = "";
					String xsl= "";
					if (forward.getAttribute("sequence")
!= null) 
						sequence =
forward.getAttribute("sequence").getValue();
					if (forward.getAttribute("xsl") !=
null) 
						xsl =
forward.getAttribute("xsl").getValue();
					System.out.println("PARSING:");
					System.out.println("pageName:" +
pageName);
					System.out.println("resource:" +
resource);
					System.out.println("sequence:" +
sequence);
					System.out.println("xsl:" + xsl);
					System.out.println("\n");
					
					Forwarder fwd = new Forwarder();
					fwd.setResource(resource);
					fwd.setXsl(xsl);
					System.out.println("LENGTH: " +
sequence.length() );
					fwd.setSequence(sequence.length() >=
1 );
					
					pageList.setPgNameVec(pageName);
					pageList.setPropertyVec(fwd);
				}
				mappingTable.put(name, pageList);
			}
	 	} catch (JDOMException e) {
		            if (e.getRootCause() != null) {
	            	e.getRootCause().printStackTrace();
	            } else {
			e.printStackTrace();
	            }
	        } catch (Exception e) {
			e.printStackTrace();
	        }  


Cheers'
Henry Hooi Tak Keong
Software Engineer, 
NCS-I (Malaysia) Sdn. Bhd.
Tel: 603-7725-6878 (ext. 119)
tkhooi at my.ncs-i.com

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