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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