UCF runtime problem with failed to connect to server error

Symptoms

UCF component unable to upload any files to Documentum. Enabling UCF trace shows no UCF server log.



An error has occurred when invoking the UCF runtime. Details:
Failed to connect to server - refer ucf client logs for details
An error has occurred when invoking the UCF runtime. Details:
Failed to connect to server - refer ucf client logs for details

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Stack Trace:

An error has occurred when invoking the UCF runtime. Details:
Failed to connect to server - refer ucf client logs for details
com.documentum.ucf.client.install.launcher.InvocationException: An error has occurred when invoking the UCF runtime. Details:
Failed to connect to server - refer ucf client logs for details
at com.documentum.ucf.client.install.launcher.impl.RuntimeInvoker.retrieveContent(RuntimeInvoker.java:433)
at com.documentum.ucf.client.install.launcher.impl.RuntimeInvoker.initConnectionForSharedProcess(RuntimeInvoker.java:287)
at com.documentum.ucf.client.install.launcher.impl.RuntimeInvoker.initConnection(RuntimeInvoker.java:59)
at com.documentum.web.applet.ucfinvoker.LaunchRuntimeDelegate.connectRuntime(Unknown Source)
at com.documentum.web.applet.ucfinvoker.Java2DelegateImpl.access$201(Unknown Source)
at com.documentum.web.applet.ucfinvoker.Java2DelegateImpl$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at com.documentum.web.applet.ucfinvoker.Java2DelegateImpl.connectRuntime(Unknown Source)
at com.documentum.web.applet.ucfinvoker.LaunchRuntimeDelegate.safeConnectRuntime(Unknown Source)
at com.documentum.web.applet.ucfinvoker.LaunchRuntimeDelegate.getUcfSessionId(Unknown Source)
at com.documentum.web.applet.ucfinvoker.LaunchRuntimeDelegate.start(Unknown Source)
at com.documentum.web.applet.ucfinvoker.LaunchRuntime.start(Unknown Source)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)



SEVERE: Error during retrieveing Requests:

java.io.EOFException

at java.io.DataInputStream.readFully(Unknown Source)

at java.io.DataInputStream.readUTF(Unknown Source)

at java.io.DataInputStream.readUTF(Unknown Source)

at com.documentum.ucf.common.transport.spi.StreamHelper.readString(StreamHelper.java:29)

at com.documentum.ucf.client.transport.impl.ClientReceiver.getRequests(ClientReceiver.java:44)

at com.documentum.ucf.client.transport.impl.ClientSession.handshake(ClientSession.java:510)

at com.documentum.ucf.client.transport.impl.ClientSession.handshake(ClientSession.java:485)

at com.documentum.ucf.client.transport.impl.ClientSession.run(ClientSession.java:201)



Cause

Bug 118836, install dab after Webtop or DA.



If Webtop is installed before DAB, you may experience the ucf-server-api.jar issue referring to different location, the one in DAB. The reason is that, dctm.jar ->manifest.mf has the following:

Application%20Builder/devws.jar

And devws.jar ->manifest.mf has ucf specified as below. This jar is in C:\Program Files\Documentum\Application Builder, the ucf-server_api.jar is under C:\Program Files\Documentum\Application Builder\lib



Resolution

1. Go to DOS prompt.

2. Enter:

==

set classpath=

==

3. Start WebLogic from that command line prompt and see if that works.



An alternative solution is to get rid of dctm.jar from classpath. Reference all the jar files under Documentum\shared directory in the classpath.