Hello everyone, I'm getting a strange error 500 when trying to test my application on my local development server. The strange thing is that when I deploy it to GAE's remote server, then it works fine.
I've written a bare-bone JSP, which also pretty much isolates the problem: <%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1" isELIgnored="false"%> <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"; %> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>Page Title</title> </head> <body> <h1>Sum Test 2+2=<c:out value="${2+2}" /></h1> <c:choose> <c:when test="${2+2==4}">sum works</c:when> <c:otherwise>sum doesn't work</c:otherwise> </c:choose> </body> Now, some details about my configuration: - Eclipse IDE - No jstl jar file added to WEB-INF\lib as a copy has been included in the SDK by default - No tld added anywhere, as they should be inside the jar - No references to the tld in WEB-INF\lib - SDK 1.4.2 A partial stack trace: HTTP ERROR 500 Problem accessing /. Reason: javax/servlet/jsp/tagext/TagSupport Caused by: java.lang.NoClassDefFoundError: javax/servlet/jsp/tagext/TagSupport at java.lang.ClassLoader.findBootstrapClass(Native Method) at java.lang.ClassLoader.findBootstrapClassOrNull(ClassLoader.java: 927) at java.lang.ClassLoader.loadClass(ClassLoader.java:298) at com.google.appengine.tools.development.DevAppServerClassLoader.loadClass(DevAppServerClassLoader.java: 87) at java.lang.ClassLoader.loadClass(ClassLoader.java:248) at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(ClassLoader.java:632) at java.lang.ClassLoader.defineClass(ClassLoader.java:616) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java: 141) at java.net.URLClassLoader.defineClass(URLClassLoader.java:283) at java.net.URLClassLoader.access$000(URLClassLoader.java:58) at java.net.URLClassLoader$1.run(URLClassLoader.java:197) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:190) at java.lang.ClassLoader.loadClass(ClassLoader.java:307) at com.google.appengine.tools.development.DevAppServerClassLoader.loadClass(DevAppServerClassLoader.java: 87) ... And some further (strange) details: - Again, the app works fine in the remote server - The tag <c:out value="${2+2}" /> by itself works in the development server; adding other tags such as <c:choose> or <c:if> generate the error 500 Does anyone have any idea why this is happening? I've searched all over the forums, but apparently nobody has had this issue...? -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-java@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
