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http://issues.apache.org/bugzilla/show_bug.cgi?id=41267 Summary: NPE in TagLibraryInfoImpl for a declared tag files not in jar files Product: Tomcat 5 Version: 5.5.20 Platform: Other OS/Version: other Status: NEW Severity: minor Priority: P2 Component: Jasper AssignedTo: tomcat-dev@jakarta.apache.org ReportedBy: [EMAIL PROTECTED] When a tld contains a tag-file definition with a path that starts with "/META-INF/tags" TagLibraryInfoImpl immediately assumes the tld is contained in a jar file (like it should, according to specifications), and causes a NPE if it doesn't since the jar URL is null. This is actually a minor problem since the tag doesn't have to be loaded anyway (tag files with a path of "META-INF/tags" must be packaged in jar), but the NPE thrown by TagLibraryInfoImpl is not very friendly (I just spent a couple of hours before understanding where it came from). The attached patch simply fix TagLibraryInfoImpl in order to avoid a NPE. If the file is not available in TagFileJarUrls a better exception will already be thrown when trying to use it. This patch is only needed for tomcat 5.5, tomcat 6.0 doesn't have this problem (no NPE, but the same exception you will get in 5.5 after this patch). For reference, this is the stacktrace you get in a JSP page without this fix: java.lang.NullPointerException java.util.Hashtable.put(Hashtable.java:396) org.apache.jasper.compiler.TagLibraryInfoImpl.createTagFileInfo(TagLibraryInfoImpl.java:494) org.apache.jasper.compiler.TagLibraryInfoImpl.parseTLD(TagLibraryInfoImpl.java:250) org.apache.jasper.compiler.TagLibraryInfoImpl.<init>(TagLibraryInfoImpl.java:162) org.apache.jasper.compiler.JspDocumentParser.getTaglibInfo(JspDocumentParser.java:1259) org.apache.jasper.compiler.JspDocumentParser.startPrefixMapping(JspDocumentParser.java:767) com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startNamespaceMapping(AbstractSAXParser.java:2063) com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(AbstractSAXParser.java:499) com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:330) com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl$NSContentDispatcher.scanRootElementHook(XMLNSDocumentScannerImpl.java:779) -- Configure bugmail: http://issues.apache.org/bugzilla/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug, or are watching the assignee. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
