[ome-users] Checking a false login

[Matthias Dunda]

Hi all!

I'm new to this group and trying to get into this omero stuff...

Right now I'm using this example to start from:

http://trac.openmicroscopy.org.uk/omero/wiki/examples/ExampleOne

What I'd like to ask is how can I check for a false login? When I run the code providing a wrong login/pass I get some very strange exceptions, from witch I would never think of that is only the login being wrong:

----snip----
Exception in thread "main" java.lang.reflect.UndeclaredThrowableException
        at $Proxy14.saveAndReturnObject(Unknown Source)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:280)
        at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:199)
        at $Proxy7.saveAndReturnObject(Unknown Source)
        at examples.Example01.main(Example01.java:34)
Caused by: java.lang.ClassNotFoundException: [Ljava.lang.StackTraceElement;
        at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
        at org.jboss.remoting.loading.RemotingClassLoader.loadClass(RemotingClassLoader.java:50)
        at org.jboss.remoting.loading.ObjectInputStreamWithClassLoader.resolveClass(ObjectInputStreamWithClassLoader.java:139)
        at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1575)
        at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1496)
        at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1624)
        at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1323)
        at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945)
        at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1869)
        at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
        at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
        at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945)
        at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1869)
        at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
        at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
        at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945)
        at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1869)
        at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
        at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
        at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
        at org.jboss.remoting.serialization.impl.java.JavaSerializationManager.receiveObject(JavaSerializationManager.java:128)
        at org.jboss.remoting.marshal.serializable.SerializableUnMarshaller.read(SerializableUnMarshaller.java:66)
        at org.jboss.remoting.transport.socket.SocketClientInvoker.transport(SocketClientInvoker.java:279)
        at org.jboss.remoting.RemoteClientInvoker.invoke(RemoteClientInvoker.java:143)
        at org.jboss.remoting.Client.invoke(Client.java:525)
        at org.jboss.remoting.Client.invoke(Client.java:488)
        at org.jboss.aspects.remoting.InvokeRemoteInterceptor.invoke(InvokeRemoteInterceptor.java:55)
        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
        at org.jboss.aspects.tx.ClientTxPropagationInterceptor.invoke(ClientTxPropagationInterceptor.java:61)
        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
        at org.jboss.aspects.security.SecurityClientInterceptor.invoke(SecurityClientInterceptor.java:55)
        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
        at org.jboss.ejb3.remoting.IsLocalInterceptor.invoke(IsLocalInterceptor.java:65)
        at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
        at org.jboss.ejb3.stateless.StatelessRemoteProxy.invoke(StatelessRemoteProxy.java:102)
        ... 9 more
ERROR: JDWP Unable to get JNI 1.2 environment, jvm->GetEnv() return code = -2
JDWP exit error AGENT_ERROR_NO_JNI_ENV(183):  [../../../src/share/back/util.c:820]
----snip----

I didn't find something on the ServiceFactory like isValidLogin or isLoggedIn or something... I even get a not-null IUpdate from getUpdateService() although the login was wrong...

Any suggestions? Are there more examples available?

Cheers!
Matthias

--
Matthias Dunda, Dipl.-Inform.
c.a.r.u.s. HMS GmbH
Bornbarch 9, D-22848 Norderstedt
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