AbstractResource.getFullyQualifiedName() returns wrong file path on Windows

1,cd to C:\Users
2,Get path use AbstractResource.getFullyQualifiedName() and it returns /Users
3,Execute "cd /Users" produces error of "[cd] no such resources:Users"

So,the following test failed:

org.junit.ComparisonFailure: expected:</Users[/Administrator]> but was:</Users[]>
at org.junit.Assert.assertEquals(Assert.java:123)
at org.junit.Assert.assertEquals(Assert.java:145)
at org.jboss.forge.shell.test.plugins.builtin.ChangeDirectoryPluginTest.testAbsolutePath(ChangeDirectoryPluginTest.java:137)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at org.jboss.arquillian.junit.Arquillian$6$1.invoke(Arquillian.java:251)
at org.jboss.arquillian.protocol.local.LocalMethodExecutor.invoke(LocalMethodExecutor.java:40)
at org.jboss.arquillian.impl.handler.ContainerTestExecuter.callback(ContainerTestExecuter.java:50)
at org.jboss.arquillian.impl.handler.ContainerTestExecuter.callback(ContainerTestExecuter.java:40)
at org.jboss.arquillian.impl.event.MapEventManager.fire(MapEventManager.java:63)
at org.jboss.arquillian.impl.context.AbstractEventContext.fire(AbstractEventContext.java:115)
at org.jboss.arquillian.impl.EventTestRunnerAdaptor.test(EventTestRunnerAdaptor.java:157)
at org.jboss.arquillian.junit.Arquillian$6.evaluate(Arquillian.java:244)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
at org.jboss.arquillian.junit.Arquillian$4.evaluate(Arquillian.java:207)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at org.jboss.arquillian.junit.Arquillian$5$1.evaluate(Arquillian.java:225)
at org.jboss.arquillian.junit.Arquillian$MultiStatementExecutor.execute(Arquillian.java:297)
at org.jboss.arquillian.junit.Arquillian$5.evaluate(Arquillian.java:221)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
at org.jboss.arquillian.junit.Arquillian$2.evaluate(Arquillian.java:163)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at org.jboss.arquillian.junit.Arquillian$3$1.evaluate(Arquillian.java:186)
at org.jboss.arquillian.junit.Arquillian$MultiStatementExecutor.execute(Arquillian.java:297)
at org.jboss.arquillian.junit.Arquillian$3.evaluate(Arquillian.java:182)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at org.jboss.arquillian.junit.Arquillian.run(Arquillian.java:127)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)