Workstation Not Opening after UFT got Upgraded

Document ID : KB000091835
Last Modified Date : 17/04/2018
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Issue:
 I had a UFT installation on my laptop, which got upgraded to the newest version through a push installation at our organization. Now, i am not able to start the DevTest Workstation 10.2.4 or 9.1. I see there's a process Workstation.exe in the task manager, however, the splash screen doesn't pop up.

Workstation.log shows the error:
12:34:48:385 >> Loading HP UFT Java Support (version 14.0.0.0) (Oracle Corporation, 1.8.0_102) 2018-04-17 17:34:48,466Z (12:34) [Thread-8] ERROR System.err - Exception in thread "Thread-8" java.lang.LinkageError: loader constraint violation: when resolving method "org.apache.xerces.parsers.DOMParser.parse(Lorg/xml/sax/InputSource;)V" the class loader (instance of com/mercury/javashared/agentloader/AgentClassLoaderJava2) of the current class, com/mercury/ftjadin/utils/xmlParsing/DomParserFactory, and the class loader (instance of ) for the method's defining class, org/apache/xerces/parsers/DOMParser, have different Class objects for the type org/xml/sax/InputSource used in the signature 2018-04-17 17:34:48,468Z (12:34) [Thread-8] ERROR System.err - at com.mercury.ftjadin.utils.xmlParsing.DomParserFactory.run(Unknown Source) 2018-04-17 17:34:48,469Z (12:34) [main] ERROR 
Environment:
All supported DevTest environments
Cause:
The UFT properties listed below were added to environment variable properties and these properties will interfere with the DEVTEST start up script. They need to be in its own start-up script and not in the ENV Variables.. 

JAVA_OPTIONS=-Xbootclasspath/a:"C:\Program Files (x86)\HP\Unified Functional Testing\bin\java_shared\classes\jasmine.jar"

IBM_JAVA_OPTIONS=-Xbootclasspath/a:"C:\Program Files (x86)\HP\Unified Functional Testing\bin\java_shared\classes\jasmine.jar"

JAVA_TOOL_OPTIONS=-agentlib:jvmhook
Resolution:
Option 1: 

Delete these environment variables, 
JAVA_OPTIONS
IBM_JAVA_OPTIONS
JAVA_TOOL_OPTIONS

Option 2: 
Rename these environment properties or leave the values as blank.. 
zzz_JAVA_OPTIONS
zzz_IBM_JAVA_OPTIONS
zzz_JAVA_TOOL_OPTIONS