[Unicore-cvs-commits] SF.net SVN: unicore:[16188] unicore-portal/trunk/grid.core/src/main/java/eu /unicore/portal/grid/core/utils/U6ApplicationUtils.java

[<bsc...@us...>]

Revision: 16188
          http://unicore.svn.sourceforge.net/unicore/?rev=16188&view=rev
Author:   bschuller
Date:     2013-03-29 13:31:40 +0000 (Fri, 29 Mar 2013)
Log Message:
-----------
avoid NPE and log any problems with metadata extraction

Modified Paths:
--------------
    unicore-portal/trunk/grid.core/src/main/java/eu/unicore/portal/grid/core/utils/U6ApplicationUtils.java

Modified: unicore-portal/trunk/grid.core/src/main/java/eu/unicore/portal/grid/core/utils/U6ApplicationUtils.java
===================================================================
--- unicore-portal/trunk/grid.core/src/main/java/eu/unicore/portal/grid/core/utils/U6ApplicationUtils.java	2013-03-29 13:03:10 UTC (rev 16187)
+++ unicore-portal/trunk/grid.core/src/main/java/eu/unicore/portal/grid/core/utils/U6ApplicationUtils.java	2013-03-29 13:31:40 UTC (rev 16188)
@@ -7,6 +7,7 @@
 
 import javax.xml.namespace.QName;
 
+import org.apache.log4j.Logger;
 import org.apache.xmlbeans.XmlCursor;
 import org.apache.xmlbeans.XmlCursor.TokenType;
 import org.apache.xmlbeans.XmlObject;
@@ -44,6 +45,8 @@
 
 public class U6ApplicationUtils {
 
+	private static final Logger logger = Logger.getLogger(U6ApplicationUtils.class);
+
 	private static final QName ARGUMENT_META_DATA = ArgumentDocument.type.getDocumentElementName();
 	private static final QName OUTPUT_META_DATA = OutputDocument.type.getDocumentElementName();
 
@@ -139,8 +142,8 @@
 
 			return CollectionUtil.toArray(result,ArgumentMetaData.class);
 		} catch (Exception e) {
-			
-			return null;// if anything goes wrong, we just ignore the argument metadata
+			logger.error("Error extracting metadata", e);
+			return new ArgumentMetaData[0];// if anything goes wrong, we just ignore the argument metadata
 		}
 	}
 

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