I am trying to develop a web application on my Windows 7 (64-bit) machine. I am trying to run
Tomcat 6.0 standalone on port 80. When I try to navigate to the initial
jsp page, I get the following errors (copied from the Tomcat localhost log):
Oct 21, 2011 9:41:57 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for
servlet jsp threw exception
java.lang.NullPointerException
at sun.awt.shell.Win32ShellFolder2$1.call(Unknown Source)
at sun.awt.shell.Win32ShellFolder2$1.call(Unknown Source)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at sun.awt.shell.Win32ShellFolderManager2$ComInvoker$3.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Oct 21, 2011 10:01:28 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet jsp threw exception
java.lang.NullPointerException
at sun.awt.shell.Win32ShellFolder2$1.call(Unknown Source)
at sun.awt.shell.Win32ShellFolder2$1.call(Unknown Source)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at sun.awt.shell.Win32ShellFolderManager2$ComInvoker$3.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Oct 21, 2011 10:01:48 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet jsp threw exception
java.lang.NullPointerException
at sun.awt.shell.Win32ShellFolder2$1.call(Unknown Source)
at sun.awt.shell.Win32ShellFolder2$1.call(Unknown Source)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at sun.awt.shell.Win32ShellFolderManager2$ComInvoker$3.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
I have looked around on the web - there are a number of postings that display this error message, but I could not find one that had a useful explanation of what all this means. I do note that no jsp file is being compiled, so I have to assume this is a configuration problem or software incompatibility problem, not a problem in my code.