Temp path issue (#128)

* Fix Java temp path discrepancy

* Fix Java temp path discrepancy

* Fix Java temp dir discrepancy

* Fix test for temp dir discrepancy

* Fix Java temp path discrepancy

* Fix Java temp dir path discrepancy

* Fix temp path issue_Incorporate reviews

* Fix temp path discrepancy_use computer channel

Author: abhargav-mw

src/main/java/com/mathworks/ci/MatlabBuild.java

@@ -76,16 +76,21 @@ default FilePath getFilePathForUniqueFolder(Launcher launcher, String uniqueName
          * https://javadoc.jenkins-ci.org/jenkins/tasks/SimpleBuildStep.html */
 
         String tmpDir = getNodeSpecificTmpFolderPath(workspace);
-        return new FilePath(launcher.getChannel(), tmpDir+"/"+uniqueName);
+
+        return new FilePath(launcher.getChannel(), tmpDir + "/" + uniqueName);
     }
 
     default String getNodeSpecificTmpFolderPath(FilePath workspace) throws IOException, InterruptedException {
         Computer cmp = workspace.toComputer();
         if (cmp == null) {
             throw new IOException(Message.getValue("build.workspace.computer.not.found"));
         }
-        String tmpDir = (String) cmp.getSystemProperties().get("java.io.tmpdir");
-        return tmpDir;
+        
+        String tmpDirPath = (String) cmp.getSystemProperties().get("java.io.tmpdir");
+
+        // Invoke FilePath.normalize for clean file path on any channel.
+        FilePath tmpDir = new FilePath(cmp.getChannel(), tmpDirPath);
+        return tmpDir.getRemote();
     }
 
     default String getUniqueNameForRunnerFile() {

src/test/java/com/mathworks/ci/RunMatlabCommandBuilderTest.java

@@ -249,6 +249,9 @@ public void verifyCommandSupportsEnvVar() throws Exception {
 
     /*
      * Test to verify if appropriate MATALB runner file is copied in workspace.
+     * 
+     * NOTE: This test assumes there is no MATLAB installed and is not on System Path.
+     * 
      */
     @Test
     public void verifyMATLABrunnerFileGenerated() throws Exception {
@@ -262,6 +265,9 @@ public void verifyMATLABrunnerFileGenerated() throws Exception {
 
 	/*
 	 * Test to verify if Matrix build fails when MATLAB is not available.
+     * 
+     * NOTE: This test assumes there is no MATLAB installed and is not on System Path.
+     * 
 	 */
 	@Test
 	public void verifyMatrixBuildFails() throws Exception {

src/test/java/com/mathworks/ci/RunMatlabTestsBuilderTest.java

@@ -334,6 +334,9 @@ public void veriyEmptyParameters() throws Exception {
 
     /*
      * Test to verify if appropriate MATALB runner file is copied in workspace.
+     * 
+     * NOTE: This test assumes there is no MATLAB installed and is not on System Path.
+     *
      */
     @Test
     public void verifyMATLABrunnerFileGeneratedForAutomaticOption() throws Exception {
@@ -346,6 +349,9 @@ public void verifyMATLABrunnerFileGeneratedForAutomaticOption() throws Exception
 
 	/*
 	 * Test to verify if Matrix build fails when MATLAB is not available.
+     * 
+     * NOTE: This test assumes there is no MATLAB installed and is not on System Path.
+     *
 	 */
 	@Test
 	public void verifyMatrixBuildFails() throws Exception {