cziegeler 2002/08/20 23:43:58
Modified: src/java/org/apache/cocoon/webapps/session/xml XMLUtil.java
Log:
Adding more meaning to NPE.
Revision Changes Path
1.5 +11 -3
xml-cocoon2/src/java/org/apache/cocoon/webapps/session/xml/XMLUtil.java
Index: XMLUtil.java
===================================================================
RCS file:
/home/cvs/xml-cocoon2/src/java/org/apache/cocoon/webapps/session/xml/XMLUtil.java,v
retrieving revision 1.4
retrieving revision 1.5
diff -u -r1.4 -r1.5
--- XMLUtil.java 24 Jun 2002 12:42:50 -0000 1.4
+++ XMLUtil.java 21 Aug 2002 06:43:58 -0000 1.5
@@ -827,13 +827,21 @@
* this node is searched for a child named path[1]...
*/
public static NodeList getNodeListFromPath(Node contextNode,
- String[] path) {
+ String[] path) {
if (contextNode == null) return new NodeListImpl();
if (path == null || path.length == 0) {
return new NodeListImpl(new Node[] {contextNode});
}
NodeListImpl result = new NodeListImpl();
- getNodesFromPath(result, contextNode, path, 0);
+ try {
+ getNodesFromPath(result, contextNode, path, 0);
+ } catch (NullPointerException npe) {
+ // this NPE is thrown because the parser iss not configured
+ // to use DOM Level 2
+ throw new NullPointerException("XMLUtil.getNodeListFromPath() did catch
a NullPointerException."+
+ "This might be due to a missconfigured XML parser which
does not use DOM Level 2."+
+ "Make sure that you use the XML parser shipped with
Cocoon.");
+ }
return result;
}
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