I figured out how to setup logging it was easy. I was trying to load the
markup HTML from a jar file:
12-22 12:18:32 [DEBUG] [UrlResourceStream] - cannot convert url:
jar:file:/export/webapps/mycompany.com/web/ROOT/WEB-INF/lib/com.mycompany.newscomments.jar!/com/mycompany/newscomments/CommentHomePage.html
to file (URI is not hierarchical), falling back to the inputstream for
polling
12-22 12:18:32 [DEBUG] [MarkupCache] - Loading markup from
jar:file:/export/webapps/mycompany.com/web/ROOT/WEB-INF/lib/com.mycompany.newscomments.jar!/com/mycompany/newscomments/CommentHomePage.html
12-22 12:18:33 [ERROR] [RequestCycle] -
java.lang.NullPointerException
at wicket.markup.parser.XmlPullParser.parse(XmlPullParser.java:390)
at wicket.markup.MarkupParser.readAndParse(MarkupParser.java:196)
at wicket.markup.MarkupCache.loadMarkup(MarkupCache.java:279)
at
wicket.markup.MarkupCache.loadMarkupAndWatchForChanges(MarkupCache.java:354)
at wicket.markup.MarkupCache.getMarkup(MarkupCache.java:198)
at wicket.markup.MarkupCache.getMarkupStream(MarkupCache.java:106)
at
wicket.MarkupContainer.getAssociatedMarkupStream(MarkupContainer.java:827)
at wicket.markup.html.WebPage.commonInit(WebPage.java:235)
at wicket.markup.html.WebPage.<init>(WebPage.java:120)
at
com.mycompany.newscomments.CommentHomePage.<init>(CommentHomePage.java:27)
...
Once I moved the markup file out of the jar and into WEB-INF/classes,
the problem went away. Is there any way to keep them in the jar file
without getting this error?
-August
Johan Compagner wrote:
can you check for us why that is null in your case?
All those exceptions are logged just make sure you have the right
logging.properties
johan
On 12/22/06, *August Detlefsen* <[EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>> wrote:
I am getting a NullPointerException when I try to visit the home
page of
my web application. Root cause:
java.lang.NullPointerException
at wicket.markup.parser.XmlPullParser.parse(XmlPullParser.java:390)
at wicket.markup.MarkupParser.readAndParse(MarkupParser.java:196)
at wicket.markup.MarkupCache.loadMarkup (MarkupCache.java:279)
at
wicket.markup.MarkupCache.loadMarkupAndWatchForChanges(MarkupCache.java:354)
at wicket.markup.MarkupCache.getMarkup(MarkupCache.java:198)
at wicket.markup.MarkupCache.getMarkupStream( MarkupCache.java:106)
at
wicket.MarkupContainer.getAssociatedMarkupStream(MarkupContainer.java:827)
at wicket.markup.html.WebPage.commonInit(WebPage.java:235)
at wicket.markup.html.WebPage.<init>(WebPage.java :120)
at
com.mycompany.newscomments.CommentHomePage.<init>(CommentHomePage.java:27)
...
I traced it back to the parse method in XmlPullParser, specifically
where the xmlReader is closed in the finally block:
finally
{
resource.close();
this.xmlReader.close();
}
I think this exception can be avoided by changing:
this.xmlReader.close ();
to:
if (this.xmlReader != null) this.xmlReader.close();
However, what is causing the xmlReader object to be null?
Is there a way to redirect these errors to a log file instead of
displaying them on screen?
Thanks,
August
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August Detlefsen
CEO/Web Application Architect
CodeMagi, Inc.
510-368-4489 tel
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http://www.codemagi.com
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