Index: lams_common/src/java/org/lamsfoundation/lams/util/zipfile/ZipFileUtil.java
===================================================================
diff -u -rbad08c13deb4bc303c07eb851957e0807d63e570 -rca0172edce3b4798059b892187fcf985099749ab
--- lams_common/src/java/org/lamsfoundation/lams/util/zipfile/ZipFileUtil.java	(.../ZipFileUtil.java)	(revision bad08c13deb4bc303c07eb851957e0807d63e570)
+++ lams_common/src/java/org/lamsfoundation/lams/util/zipfile/ZipFileUtil.java	(.../ZipFileUtil.java)	(revision ca0172edce3b4798059b892187fcf985099749ab)
@@ -138,6 +138,7 @@
 					entryName = entry.getName();
 					String destName = tempDirName + File.separator + entryName;
 					
+					log.debug("Prepare directory for :" + destName);
 					prepareDirectory(destName);
 					
 			        FileOutputStream fos = new FileOutputStream( destName );
@@ -178,8 +179,10 @@
 		//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);
+		log.debug("Change canonical directory to :" + destName);
 		File destNameFile = new File(destName);
 		String path = destNameFile.getParent();
+		log.debug("Making path :" + path);
 		if(path != null){
 			File pathDir = new File(path);
 			pathDir.mkdirs();