please help me to fix this error in jenkin -testlink Continuous integration
---------------------
Running MevanProject.CI.TestClass
Tests run: 4, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 3.749 sec

Results :

Tests run: 4, Failures: 0, Errors: 0, Skipped: 0

[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 5.852s
[INFO] Finished at: Mon Jan 12 12:44:38 IST 2015
[INFO] Final Memory: 18M/173M
[INFO] ------------------------------------------------------------------------
Preparing TestLink client API.
Using TestLink URL:

http............/Testlink/lib/api/xmlrpc.php

FATAL: [Ljava.lang.Object; cannot be cast to java.util.Map
java.lang.ClassCastException: [Ljava.lang.Object; cannot be cast to java.util.Map
at br.eti.kinoshita.testlinkjavaapi.util.Util.castToMap(Util.java:591)
at br.eti.kinoshita.testlinkjavaapi.TestProjectService.getTestProjectByName(TestProjectService.java:115)
at br.eti.kinoshita.testlinkjavaapi.TestLinkAPI.getTestProjectByName(TestLinkAPI.java:438)
at hudson.plugins.testlink.TestLinkBuilder.getTestLinkSite(TestLinkBuilder.java:309)
at hudson.plugins.testlink.TestLinkBuilder.perform(TestLinkBuilder.java:186)
at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:20)
at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:770)
at hudson.model.Build$BuildExecution.build(Build.java:199)
at hudson.model.Build$BuildExecution.doRun(Build.java:160)
at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:533)
at hudson.model.Run.execute(Run.java:1759)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
at hudson.model.ResourceController.execute(ResourceController.java:89)
at hudson.model.Executor.run(Executor.java:240)