Index: lams_common/build.xml
===================================================================
diff -u -r2e71958d5ce8fd25642197ffcf432754daa7cf00 -rbad08c13deb4bc303c07eb851957e0807d63e570
--- lams_common/build.xml	(.../build.xml)	(revision 2e71958d5ce8fd25642197ffcf432754daa7cf00)
+++ lams_common/build.xml	(.../build.xml)	(revision bad08c13deb4bc303c07eb851957e0807d63e570)
@@ -210,7 +210,7 @@
 	<!-- ================================================================ -->
 	<!-- Make jar archive for deployment        		    	          -->
 	<!-- ================================================================ -->
-	<target name="lams-jar" depends="compile,compile.test" description="creates jar file">
+	<target name="lams-jar" depends="compile" description="creates jar file">
 		<delete file="${build.lib}/${product}.jar"/>
 		<delete file="${build.lib}/lams-session.jar"/>
 		<jar jarfile="${build.lib}/${product}.jar">
Index: lams_common/src/java/org/lamsfoundation/lams/util/FileUtil.java
===================================================================
diff -u -r4fa4ba3d40e23d923eda065a946fab6701d6418f -rbad08c13deb4bc303c07eb851957e0807d63e570
--- lams_common/src/java/org/lamsfoundation/lams/util/FileUtil.java	(.../FileUtil.java)	(revision 4fa4ba3d40e23d923eda065a946fab6701d6418f)
+++ lams_common/src/java/org/lamsfoundation/lams/util/FileUtil.java	(.../FileUtil.java)	(revision bad08c13deb4bc303c07eb851957e0807d63e570)
@@ -344,12 +344,17 @@
 			fullpath = path + file;
 		else
 			fullpath = path + File.separator + file;
+		
+		return makeCanonicalPath(fullpath);
+		
+	}
+	
+	public static String makeCanonicalPath(String pathfile){
 		if(File.separator.indexOf("\\") != -1)
-			fullpath = fullpath.replaceAll("\\/","\\\\");
+			pathfile = pathfile.replaceAll("\\/","\\\\");
 		else
-			fullpath = fullpath.replaceAll("\\\\",File.separator);
+			pathfile = pathfile.replaceAll("\\\\",File.separator);
 		
-		return fullpath;
-		
+		return pathfile;
 	}
 }
Index: lams_common/src/java/org/lamsfoundation/lams/util/zipfile/ZipFileUtil.java
===================================================================
diff -u -r34b959260a0f8f8285793a4481a95ca3580eabc5 -rbad08c13deb4bc303c07eb851957e0807d63e570
--- lams_common/src/java/org/lamsfoundation/lams/util/zipfile/ZipFileUtil.java	(.../ZipFileUtil.java)	(revision 34b959260a0f8f8285793a4481a95ca3580eabc5)
+++ lams_common/src/java/org/lamsfoundation/lams/util/zipfile/ZipFileUtil.java	(.../ZipFileUtil.java)	(revision bad08c13deb4bc303c07eb851957e0807d63e570)
@@ -175,10 +175,15 @@
 	 * @param destName
 	 */
 	private static void prepareDirectory(String destName) {
+		//It must sort out the directory information to current OS.
+		//e.g, if zip file is zipped under windows, but unzip in linux.  
+		destName = FileUtil.makeCanonicalPath(destName);
 		File destNameFile = new File(destName);
 		String path = destNameFile.getParent();
-		File pathDir = new File(path);
-		pathDir.mkdirs();
+		if(path != null){
+			File pathDir = new File(path);
+			pathDir.mkdirs();
+		}
 	}
 
 	/** Delete a temporary directory.