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http://issues.apache.org/bugzilla/show_bug.cgi?id=35720 Summary: Updating JSP causes error "Provider org.apache.xerces.jaxp.SAXParserFactoryImpl could not be instantiated: java.lang.NullPointerException" Product: Tomcat 5 Version: 5.5.9 Platform: PC OS/Version: Windows Server 2003 Status: NEW Severity: normal Priority: P2 Component: Catalina AssignedTo: tomcat-dev@jakarta.apache.org ReportedBy: [EMAIL PROTECTED] Configuration: JDK: 1.5.0_03 Apache Web Server: 2.0.52 Tomcat: 5.5.9 Connector: mod_jk 1.2.14 Server OS: Windows Server 2003 Problem: Every time I update a JSP, then try to access it via a browser, I encounter: HTTP Status 500 - type Exception report message description The server encountered an internal error () that prevented it from fulfilling this request. exception javax.servlet.ServletException: Provider org.apache.xerces.jaxp.SAXParserFactoryImpl could not be instantiated: java.lang.NullPointerException org.apache.jasper.servlet.JspServlet.service(JspServlet.java:249) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) root cause javax.xml.parsers.FactoryConfigurationError: Provider org.apache.xerces.jaxp.SAXParserFactoryImpl could not be instantiated: java.lang.NullPointerException javax.xml.parsers.SAXParserFactory.newInstance(Unknown Source) org.apache.taglibs.standard.tlv.JstlBaseTLV.validate(JstlBaseTLV.java:152) org.apache.taglibs.standard.tlv.JstlCoreTLV.validate(JstlCoreTLV.java:96) org.apache.jasper.compiler.TagLibraryInfoImpl.validate(TagLibraryInfoImpl.java:750) org.apache.jasper.compiler.Validator.validateXmlView(Validator.java:1527) org.apache.jasper.compiler.Validator.validate(Validator.java:1495) org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:157) org.apache.jasper.compiler.Compiler.compile(Compiler.java:286) org.apache.jasper.compiler.Compiler.compile(Compiler.java:267) org.apache.jasper.compiler.Compiler.compile(Compiler.java:255) org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:556) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:293) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:291) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) note The full stack trace of the root cause is available in the Apache Tomcat/5.5.9 logs. After seeing this message, I can restart Tomcat and the JSP functions normally. However, if I change the JSP, restart Tomcat before viewing the page, then view the page, I still get the error. For some reason, the error actually has to be thrown before restarting Tomcat fixes it. I know of no other fix. If I change two separate JSPs, I have to view the first page (throwing the error), restart Tomcat, then view the second page (throwing the error again), then restart Tomcat again. It is not enough to throw it once and restart to fix all pages; the error apparently tied to each page. I can include any related XMLs upon request. The problem seems to occur with all JSPs, but I can include a sample if it will be helpful. I posted this before (Bug 35243), and it was labeled invalid. I was told to investigate via tomcat-user. I have done this, and have received only one response, which was not helpful. I contacted a second developer, and he agreed that it sounded more like a bug, so I am posting it again. -- 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]
