here are the errors:

org.jenkinsci.plugins.p4.client.ConnectionTest: Unable to delete file: tmp-p4root\db.workingx

and

java.nio.file.FileSystemException: C:\Users\trand8\AppData\Local\Temp\hudson6220150106327700823tmp\cvs\WEB-INF\lib\class
es.jar: The process cannot access the file because it is being used by another process.
at sun.nio.fs.WindowsException.translateToIOException(WindowsException.java:86)
at sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:97)
at sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:102)
at sun.nio.fs.WindowsFileSystemProvider.implDelete(WindowsFileSystemProvider.java:269)
at sun.nio.fs.AbstractFileSystemProvider.delete(AbstractFileSystemProvider.java:103)
at java.nio.file.Files.delete(Files.java:1079)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at hudson.Util.deleteFile(Util.java:239)
at hudson.Util.deleteRecursive(Util.java:307)
at hudson.Util.deleteContentsRecursive(Util.java:204)
at hudson.Util.deleteRecursive(Util.java:298)
at hudson.Util.deleteContentsRecursive(Util.java:204)
at hudson.Util.deleteRecursive(Util.java:298)
at hudson.Util.deleteContentsRecursive(Util.java:204)
at hudson.Util.deleteRecursive(Util.java:298)
at hudson.Util.deleteContentsRecursive(Util.java:204)
at hudson.Util.deleteRecursive(Util.java:298)
at org.jvnet.hudson.test.TestPluginManager$1.run(TestPluginManager.java:146)

Results :

Failed tests: testManual_Modtime(org.jenkinsci.plugins.p4.client.ConnectionTest): expected:<1397049803000> but was:<14
22999440444>