#310382 NPE protection when WAR is not a file

git-svn-id: svn+ssh://dev.eclipse.org/svnroot/rt/org.eclipse.jetty/jetty/trunk@1645 7e9141cc-0065-0410-87d8-b60c137991c4

VERSION.txt

@@ -7,6 +7,7 @@ jetty-7.1.0.RC1-SNAPSHOT
  + 308868 Update test suite to JUnit4 - Module jetty-websocket
  + 308869 Update test suite to JUnit4 - Module jetty-xml
  + 310094 Improved start.jar options handling and configs
+ + 310382 NPE protection when WAR is not a file
  + 310562 SslSocketConnector fails to start if excludeCipherSuites is set
  + 310634 Get the localport when opening a server socket.
  + 310703 Update test suite to JUnit4 - Module tests/test-integration

jetty-webapp/src/main/java/org/eclipse/jetty/webapp/WebInfConfiguration.java

@@ -403,9 +403,12 @@ public class WebInfConfiguration implements Configuration
                 {
                     // look for a sibling like "foo/" to a "foo.war"
                     File warfile=Resource.newResource(war).getFile();
-                    File sibling = new File(warfile.getParent(),warfile.getName().substring(0,warfile.getName().length()-4));
-                    if (sibling.exists() && sibling.isDirectory() && sibling.canWrite())
-                        extractedWebAppDir=sibling;
+                    if (warfile!=null)
+                    {
+                        File sibling = new File(warfile.getParent(),warfile.getName().substring(0,warfile.getName().length()-4));
+                        if (sibling.exists() && sibling.isDirectory() && sibling.canWrite())
+                            extractedWebAppDir=sibling;
+                    }
                 }
                 
                 if (extractedWebAppDir==null)