I have selected 'HP Tests from file System' in 'Add build step' and 'Publish HP test results' as 'Post build action'. The surprising fact is, the post build action is always failing for some unknown reason.

I have tried with custom workspace option but still no luck. Please find the console output below:-

Started by upstream project "OracleAutomation_AR" build number 12
originally caused by:
Started by user anonymous
Building remotely on PC242567 in workspace C:\Program Files\Java\jre7\label\PC242567
[PC242567] $ "C:\Program Files\Java\jre7\label\PC242567\HpToolsLauncher.exe" -paramfile props21072015141832553.txt
"Started..."
1 tests found:
\\ctsingtpsfnc\gdssim\Automation\Oracle Automation\Mandatory Scenario\AR_Entering Transaction in Transaction Window
============================================================================
21/07/2015 14:18:38 Running: \\ctsingtpsfnc\gdssim\Automation\Oracle Automation\Mandatory Scenario\AR_Entering Transaction in Transaction Window
Running test: \\ctsingtpsfnc\gdssim\Automation\Oracle Automation\Mandatory Scenario\AR_Entering Transaction in Transaction Window
Test result: Passed
21/07/2015 14:22:57 Test complete: \\ctsingtpsfnc\gdssim\Automation\Oracle Automation\Mandatory Scenario\AR_Entering Transaction in Transaction Window
-------------------------------------------------------------------------------------------------------
================================================
Run status: Job succeeded, total tests: 1, succeeded: 1, failures: 0, errors: 0
Passed : \\ctsingtpsfnc\gdssim\Automation\Oracle Automation\Mandatory Scenario\AR_Entering Transaction in Transaction Window
================================================
ERROR: Failed to archive testing tool reports
java.io.IOException: remote file operation failed: C:\Program Files\Java\jre7\label\PC242567 at hudson.remoting.Channel@dcc3c2:PC242567: java.io.IOException: Failed to read C:\Program Files\Java\jre7\label\PC242567\Results21072015141832553.xml
at hudson.FilePath.act(FilePath.java:987)
at hudson.FilePath.act(FilePath.java:969)
at com.hp.application.automation.tools.results.RunResultRecorder.perform(RunResultRecorder.java:130)
at hudson.tasks.BuildStepMonitor$3.perform(BuildStepMonitor.java:45)
at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:779)
at hudson.model.AbstractBuild$AbstractBuildExecution.performAllBuildSteps(AbstractBuild.java:726)
at hudson.model.Build$BuildExecution.post2(Build.java:185)
at hudson.model.AbstractBuild$AbstractBuildExecution.post(AbstractBuild.java:671)
at hudson.model.Run.execute(Run.java:1766)
at hudson.matrix.MatrixRun.run(MatrixRun.java:146)
at hudson.model.ResourceController.execute(ResourceController.java:98)
at hudson.model.Executor.run(Executor.java:381)
Caused by: java.io.IOException: Failed to read C:\Program Files\Java\jre7\label\PC242567\Results21072015141832553.xml
at hudson.tasks.junit.TestResult.parse(TestResult.java:287)
at hudson.tasks.junit.TestResult.parsePossiblyEmpty(TestResult.java:228)
at hudson.tasks.junit.TestResult.parse(TestResult.java:163)
at hudson.tasks.junit.TestResult.parse(TestResult.java:146)
at hudson.tasks.junit.TestResult.<init>(TestResult.java:122)
at com.hp.application.automation.tools.results.RunResultRecorder$1.invoke(RunResultRecorder.java:165)
at com.hp.application.automation.tools.results.RunResultRecorder$1.invoke(RunResultRecorder.java:130)
at hudson.FilePath$FileCallableWrapper.call(FilePath.java:2691)
at hudson.remoting.UserRequest.perform(UserRequest.java:121)
at hudson.remoting.UserRequest.perform(UserRequest.java:49)
at hudson.remoting.Request$2.run(Request.java:325)
at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:68)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at hudson.remoting.Engine$1$1.run(Engine.java:69)
at java.lang.Thread.run(Thread.java:745)
at ......remote call to PC242567(Native Method)
at hudson.remoting.Channel.attachCallSiteStackTrace(Channel.java:1361)
at hudson.remoting.UserResponse.retrieve(UserRequest.java:221)
at hudson.remoting.Channel.call(Channel.java:753)
at hudson.FilePath.act(FilePath.java:980)
... 11 more
Caused by: java.lang.SecurityException: class "hudson.remoting.RemoteClassLoader$RemoteIClassLoader"'s signer information does not match signer information of other classes in the same package
at java.lang.ClassLoader.checkCerts(ClassLoader.java:895)
at java.lang.ClassLoader.preDefineClass(ClassLoader.java:665)
at java.lang.ClassLoader.defineClass(ClassLoader.java:758)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:455)
at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
at java.net.URLClassLoader$1.run(URLClassLoader.java:367)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:360)
at com.sun.jnlp.JNLPClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at hudson.remoting.RemoteClassLoader.export(RemoteClassLoader.java:657)
at hudson.remoting.UserRequest.<init>(UserRequest.java:70)
at hudson.remoting.Channel.call(Channel.java:751)
at hudson.util.io.ParserConfigurator.applyConfiguration(ParserConfigurator.java:81)
at hudson.tasks.junit.SuiteResult.parse(SuiteResult.java:121)
at hudson.tasks.junit.TestResult.parse(TestResult.java:282)
at hudson.tasks.junit.TestResult.parsePossiblyEmpty(TestResult.java:228)
at hudson.tasks.junit.TestResult.parse(TestResult.java:163)
at hudson.tasks.junit.TestResult.parse(TestResult.java:146)
at hudson.tasks.junit.TestResult.<init>(TestResult.java:122)
at com.hp.application.automation.tools.results.RunResultRecorder$1.invoke(RunResultRecorder.java:165)
at com.hp.application.automation.tools.results.RunResultRecorder$1.invoke(RunResultRecorder.java:130)
at hudson.FilePath$FileCallableWrapper.call(FilePath.java:2691)
at hudson.remoting.UserRequest.perform(UserRequest.java:121)
at hudson.remoting.UserRequest.perform(UserRequest.java:49)
at hudson.remoting.Request$2.run(Request.java:325)
at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:68)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at hudson.remoting.Engine$1$1.run(Engine.java:69)
at java.lang.Thread.run(Thread.java:745)
Build step 'Publish HP tests result' changed build result to FAILURE
Finished: FAILURE