Java SE (Java Platform, Standard Edition)

hi all,
i'm trying to run an application in web start which runs otherwise absolutely fine.i have made a tree application .if i press a link in a node it opens another page in jeditor pane which is on the other side of the split pane.every time i try to open a page it gives me the following exception


Exception occurred during event dispatching:

java.security.AccessControlException: access denied (java.io.FilePermission c:\Program Files\Apache Tomcat 4.0\webapps\web\hello.html read)

at java.security.AccessControlContext.checkPermission(Unknown Source)

at java.security.AccessController.checkPermission(Unknown Source)

at java.lang.SecurityManager.checkPermission(Unknown Source)

at java.lang.SecurityManager.checkRead(Unknown Source)

at java.io.File.isDirectory(Unknown Source)

at sun.net.www.protocol.file.FileURLConnection.connect(Unknown Source)

at sun.net.www.protocol.file.FileURLConnection.initializeHeaders(Unknown Source)

at sun.net.www.protocol.file.FileURLConnection.getHeaderField(Unknown Source)

at sun.net.www.URLConnection.getContentType(Unknown Source)

at javax.swing.JEditorPane.getStream(Unknown Source)

at javax.swing.JEditorPane.setPage(Unknown Source)

at browser.HelpPanel.displayURL(HelpPanel.java:156)

at browser.HelpPanel.access$000(HelpPanel.java:37)

at browser.HelpPanel$2.valueChanged(HelpPanel.java:74)

at javax.swing.JTree.fireValueChanged(Unknown Source)

at javax.swing.JTree$TreeSelectionRedirector.valueChanged(Unknown Source)

at javax.swing.tree.DefaultTreeSelectionModel.fireValueChanged(Unknown Source)

at javax.swing.tree.DefaultTreeSelectionModel.notifyPathChange(Unknown Source)

at javax.swing.tree.DefaultTreeSelectionModel.setSelectionPaths(Unknown Source)


i have given permissions for file io in jdk1.3 jre,tomcat 's catalina as well as in the java.policy file for this particular application which is in the jar folder but no use.can anybody tell me the solution.following is the content of my policy file.


grant {
permission java.net.SocketPermission "*:1024-65535",
"connect,accept,resolve";
permission java.net.SocketPermission "*:80", "connect";
permission java.security.AllPermission;

permission java.util.PropertyPermission "os.name", "read";
permission java.util.PropertyPermission "os.version", "read";
permission java.util.PropertyPermission "os.arch", "read";
permission java.util.PropertyPermission "file.separator", "read";
permission java.util.PropertyPermission "path.separator", "read";
permission java.util.PropertyPermission "line.separator", "read";
permission java.util.PropertyPermission "user.dir", "read";
permission java.util.PropertyPermission "dir", "read";
permission java.io.FilePermission "c:\Program Files\Apache Tomcat 4.0\webapps\web\", "read,write,execute";



};

thanks