Index: lams_learning/src/java/org/lamsfoundation/lams/learning/export/ExportPortfolioConstants.java
===================================================================
diff -u -rfc3d08d8dedf10a132cd00ff47b3798cf70526a7 -r994e0d9f1039fc2c76617b2f959a4aba8fc4daee
--- lams_learning/src/java/org/lamsfoundation/lams/learning/export/ExportPortfolioConstants.java	(.../ExportPortfolioConstants.java)	(revision fc3d08d8dedf10a132cd00ff47b3798cf70526a7)
+++ lams_learning/src/java/org/lamsfoundation/lams/learning/export/ExportPortfolioConstants.java	(.../ExportPortfolioConstants.java)	(revision 994e0d9f1039fc2c76617b2f959a4aba8fc4daee)
@@ -28,6 +28,7 @@
 
 import org.lamsfoundation.lams.util.Configuration;
 import org.lamsfoundation.lams.util.ConfigurationKeys;
+import org.lamsfoundation.lams.util.FileUtil;
 
 /**
  * @author mtruong
@@ -45,8 +46,7 @@
 	public static final String HOST = getServerURL();
 	public static final String SUBDIRECTORY_BASENAME = "Activity"; //subdirectory for each activity is ActivityXX where XX is the activity Id
 	public static final String PARAM_FILE_LOCATION = "fileLocation";
-	public static final String TEMP_DIRECTORY = System.getProperty("java.io.tmpdir");
-	
+	public static final String TEMP_DIRECTORY = FileUtil.TEMP_DIR;
 	private static String getServerURL()
 	{
 	    return Configuration.get(ConfigurationKeys.SERVER_URL);