Thanks for the suggestion! It's true, and I have thought about it.
However, it does seem like something somewhere must be wrong if I can't
open an NIO socket to the host that served up the applet without
triggering a security exception. I'm wondering if I've misconfigured
something.
Thanks,
-Matt
Sangjin Lee wrote:
You might want to consider signing your applet which will grant more
permissions...
Regards,
Sangjin
On Thu, Apr 17, 2008 at 1:40 PM, Matt Kimmel <[EMAIL PROTECTED]>
wrote:
Hey all,
I'm working on a client/server application in which the client is an
applet. I've integrated both client and server to use MINA for their
communications, and they work fine when I run the applet in appletviewer.
However, when I run the applet in a web page in Firefox, I get the
following exception in the Java Console window:
java.lang.ExceptionInInitializerError
at sun.nio.ch.KQueueSelectorImpl.<init>(KQueueSelectorImpl.java:51)
at
sun.nio.ch.KQueueSelectorProvider.openSelector(KQueueSelectorProvider.java:20)
at java.nio.channels.Selector.open(Selector.java:209)
at
org.apache.mina.transport.socket.nio.SocketConnector.startupWorker(SocketConnector.java:233)
at
org.apache.mina.transport.socket.nio.SocketConnector.connect(SocketConnector.java:195)
at
org.apache.mina.transport.socket.nio.SocketConnector.connect(SocketConnector.java:137)
at
org.apache.mina.common.support.BaseIoConnector.connect(BaseIoConnector.java:40)
at com.esc.client.MinaClient.connect(MinaClient.java:94)
at com.esc.client.SpaceClient.<init>(SpaceClient.java:100)
at com.esc.viewer.applet.ViewerApplet.start(ViewerApplet.java:152)
at sun.applet.AppletPanel.run(AppletPanel.java:420)
at jep.AppletFramePanel.run(AppletFramePanel.java:176)
at java.lang.Thread.run(Thread.java:613)
Caused by: java.security.AccessControlException: access denied
(java.util.PropertyPermission sun.arch.data.model read)
at
java.security.AccessControlContext.checkPermission(AccessControlContext.java:264)
at
java.security.AccessController.checkPermission(AccessController.java:427)
at
java.lang.SecurityManager.checkPermission(SecurityManager.java:532)
at
java.lang.SecurityManager.checkPropertyAccess(SecurityManager.java:1285)
at java.lang.System.getProperty(System.java:628)
at
sun.nio.ch.KQueueArrayWrapper.<clinit>(KQueueArrayWrapper.java:67)
... 13 more
It looks like there's a security issue with something deep in NIO trying
to use System.getProperty, but I haven't been able to figure how to fix it
or avoid it. Has anyone seen this before? Does anyone have any
suggestions? FWIW, my dev environment is Mac OS X 10.5.2, Firefox
2.0.0.14, Apple's JDK 5, and both client and server running on the same
machine.
Thanks!
-Matt
--
Matt Kimmel, Software Alchemist
The Electric Sheep Company, Inc.
[EMAIL PROTECTED]
Second Life: Feep Larsson
--
Matt Kimmel, Software Alchemist
The Electric Sheep Company, Inc.
[EMAIL PROTECTED]
Second Life: Feep Larsson
