Desktop.getDesktop().Open(folder) permissions issue

I have a java intranet app running in a windows environment. The application is running in Tomcat and is just about to hit test, currently running as a Windows service under my login. I can create files and folders in the app using various methods (mkdir, jasper report export to odt/pdf/docx, poi create new excel workbook and also copy a template to a new file - you get the idea - no problems!) As Tomcat is running under my login I have no issues connecting to a database - not relevant really but just so you know the logon is feeding through.

I have a little code, not very elegant but part of the requirement, which opens a folder in the windows environment

    outputFolder = new File(path);  

    if (!outputFolder.exists()) 
    {
        outputFolder.mkdirs();
    }

    Desktop.getDesktop().open(outputFolder);

This has been working without issue on my dev machine to the point I forgot to even check it when I deployed to test! I've just noticed that it fails with an "Access is Denied" error on the server (full error below). Could anyone offer any advice on getting it working?

Other points

1. it is accessing a network resource along the lines of \\servername\folderpath and this is opening fine on dev from eclipse)
2. It is failing at Desktop.getDesktop().open(outputFolder); as I am creating the folder elsewhere no problems.

Thanks

Error Error message: Access is denied. sun.awt.windows.WDesktopPeer.ShellExecute(WDesktopPeer.java:82) sun.awt.windows.WDesktopPeer.open(WDesktopPeer.java:56) java.awt.Desktop.open(Desktop.java:272) uk.ac.epsrc.site.ProcessController.OpenActionFolder(ProcessController.java:805) uk.ac.epsrc.site.ProcessController.processRetrieveDocuments(ProcessController.java:184) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.lang.reflect.Method.invoke(Method.java:497) org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:215) org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132) org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:749) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:689) org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:83) org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:938) org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:870) org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961) org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:863) javax.servlet.http.HttpServlet.service(HttpServlet.java:648) org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837) javax.servlet.http.HttpServlet.service(HttpServlet.java:729) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) uk.ac.epsrc.filters.AuditRequestFilter.doFilter(AuditRequestFilter.java:60) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219) org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106) org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502) org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:610) org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518) org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091) org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:668) org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:283) org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2463) org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2452) java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) java.lang.Thread.run(Thread.java:745)