Re: [equinox-dev] NullPointerException in org.eclipse.equinox.launcher.M

[Thomas Watson <tjwatson@xxxxxxxxxx>]

I opened bug https://bugs.eclipse.org/bugs/show_bug.cgi?id=282704 to track this.

This appears to be RMI related. Can you update the bug report with more details on the scenario where this occurs?

Tom



"Pepping, Florian" ---07/07/2009 10:07:37 AM---Hello,

From:	"Pepping, Florian" <florian.pepping@xxxxxxxxxxxxxxxxxx>
To:	"Equinox development mailing list" <equinox-dev@xxxxxxxxxxx>
Date:	07/07/2009 10:07 AM
Subject:	[equinox-dev] NullPointerException in org.eclipse.equinox.launcher.Main$EclipsePolicy during PermissionCheck

---

Hello,

using the FrameworkSecurityManager of Equinox, I get a
NullPointerException during a permission check using Java 1.5.
Using exactly the same code, starting the application with Java 1.6,
everything works fine.
Stepping through the code in EclipsePolicy, it seems, that the
CodeSource of the ProtectionDomain to be checked against is null.
Referring to the Javadoc, this is normal behaviour and allowed but the
EclipsePolicy does not check this.

Is this a bug or am I doing something wrong? Currently I've have no idea
what to do, to avoid this Exception.

Below you find the StackTrace of the exception occuring.

java.lang.NullPointerException
		 at
org.eclipse.equinox.launcher.Main$EclipsePolicy.implies(Main.java:2432)
[org.eclipse.equinox.launcher-1.0.100.jar:na]
		 at
java.security.ProtectionDomain.implies(ProtectionDomain.java:195)
[na:1.5.0_06]
		 at
java.security.AccessControlContext.checkPermission(AccessControlContext.
java:249) [na:1.5.0_06]
		 at
org.eclipse.osgi.framework.internal.core.FrameworkSecurityManager.intern
alCheckPermission(FrameworkSecurityManager.java:119)
[org.eclipse.osgi-3.4.0.jar:na]
		 at
org.eclipse.osgi.framework.internal.core.FrameworkSecurityManager$CheckP
ermissionAction.run(FrameworkSecurityManager.java:84)
[org.eclipse.osgi-3.4.0.jar:na]
		 at java.security.AccessController.doPrivileged(Native Method)
[na:1.5.0_06]
		 at
org.eclipse.osgi.framework.internal.core.FrameworkSecurityManager.checkP
ermission(FrameworkSecurityManager.java:90)
[org.eclipse.osgi-3.4.0.jar:na]
		 at
org.eclipse.osgi.framework.internal.core.FrameworkSecurityManager.checkP
ermission(FrameworkSecurityManager.java:219)
[org.eclipse.osgi-3.4.0.jar:na]
		 at
java.lang.SecurityManager.checkConnect(SecurityManager.java:1034)
[na:1.5.0_06]
		 at java.net.Socket.connect(Socket.java:501) [na:1.5.0_06]
		 at java.net.Socket.connect(Socket.java:457) [na:1.5.0_06]
		 at java.net.Socket.<init>(Socket.java:365) [na:1.5.0_06]
		 at java.net.Socket.<init>(Socket.java:178) [na:1.5.0_06]
		 at
sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirectSoc
ketFactory.java:22) [na:1.5.0_06]
		 at
sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMasterSoc
ketFactory.java:128) [na:1.5.0_06]
		 at
sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:569)
[na:1.5.0_06]
		 at
sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:185)
[na:1.5.0_06]
		 at
sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:171)
[na:1.5.0_06]
		 at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:94)
[na:1.5.0_06]
		 at com.sun.jmx.remote.internal.PRef.invoke(Unknown Source)
[na:na]
		 at
javax.management.remote.rmi.RMIConnectionImpl_Stub.invoke(Unknown
Source) [na:1.5.0_06]
		 at
javax.management.remote.rmi.RMIConnector$RemoteMBeanServerConnection.inv
oke(RMIConnector.java:969) [na:1.5.0_06]
		 at
application.connector.impl.Connector.invoke(Connector.java:558) [na:na]
      ...

Thanks a lot

Florian





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