--- a/flys-artifacts/src/main/java/de/intevation/flys/collections/FLYSArtifactCollection.java	Wed Aug 22 11:58:48 2012 +0000
+++ b/flys-artifacts/src/main/java/de/intevation/flys/collections/FLYSArtifactCollection.java	Wed Aug 22 12:25:28 2012 +0000
@@ -1,5 +1,24 @@
 package de.intevation.flys.collections;
 
+import de.intevation.artifactdatabase.Backend;
+import de.intevation.artifactdatabase.Backend.PersistentArtifact;
+import de.intevation.artifactdatabase.DefaultArtifactCollection;
+import de.intevation.artifactdatabase.state.Output;
+import de.intevation.artifactdatabase.state.Settings;
+import de.intevation.artifactdatabase.state.StateEngine;
+import de.intevation.artifacts.Artifact;
+import de.intevation.artifacts.ArtifactDatabase;
+import de.intevation.artifacts.ArtifactDatabaseException;
+import de.intevation.artifacts.ArtifactNamespaceContext;
+import de.intevation.artifacts.CallContext;
+import de.intevation.artifacts.CallMeta;
+import de.intevation.artifacts.common.utils.XMLUtils;
+import de.intevation.flys.artifacts.FLYSArtifact;
+import de.intevation.flys.artifacts.context.FLYSContext;
+import de.intevation.flys.exports.OutGenerator;
+import de.intevation.flys.exports.OutputHelper;
+import de.intevation.flys.utils.FLYSUtils;
+
 import java.io.IOException;
 import java.io.OutputStream;
 import java.util.ArrayList;
@@ -11,35 +30,11 @@
 import javax.xml.xpath.XPathConstants;
 
 import org.apache.log4j.Logger;
-
 import org.w3c.dom.Document;
 import org.w3c.dom.Element;
 import org.w3c.dom.Node;
 import org.w3c.dom.NodeList;
 
-import de.intevation.artifacts.Artifact;
-import de.intevation.artifacts.ArtifactDatabase;
-import de.intevation.artifacts.ArtifactDatabaseException;
-import de.intevation.artifacts.ArtifactNamespaceContext;
-import de.intevation.artifacts.CallContext;
-import de.intevation.artifacts.CallMeta;
-
-import de.intevation.artifacts.common.utils.XMLUtils;
-
-import de.intevation.artifactdatabase.Backend;
-import de.intevation.artifactdatabase.Backend.PersistentArtifact;
-import de.intevation.artifactdatabase.DefaultArtifactCollection;
-import de.intevation.artifactdatabase.state.Output;
-import de.intevation.artifactdatabase.state.Settings;
-import de.intevation.artifactdatabase.state.StateEngine;
-
-import de.intevation.flys.artifacts.context.FLYSContext;
-import de.intevation.flys.artifacts.FLYSArtifact;
-import de.intevation.flys.exports.OutGenerator;
-import de.intevation.flys.exports.OutputHelper;
-
-import de.intevation.flys.utils.FLYSUtils;
-
 /**
  * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
  */
@@ -459,10 +454,16 @@
 
         FLYSContext flysContext = FLYSUtils.getFlysContext(context);
         StateEngine engine = (StateEngine) flysContext.get(
-        FLYSContext.STATE_ENGINE_KEY);
+                FLYSContext.STATE_ENGINE_KEY);
 
         FLYSArtifact masterArtifact = getMasterArtifact(context);
 
+        if(masterArtifact == null) {
+            log.debug("buildOutAttributes: masterArtifact == null");
+            return null;
+        }
+
+        // FIXME: ec is not used?
         XMLUtils.ElementCreator ec = new XMLUtils.ElementCreator(
             doc,
             ArtifactNamespaceContext.NAMESPACE_URI,
@@ -483,7 +484,11 @@
 
         aParser.parse();
 
-        return new AttributeWriter(
+        if(engine == null) {
+            log.debug("buildOutAttributes: engine == null");
+        }
+
+        AttributeWriter aWriter = new AttributeWriter(
             db,
             aParser.getCollectionAttribute(),
             aParser.getOuts(),
@@ -491,7 +496,8 @@
             oParser.getOuts(),
             oParser.getFacets(),
             engine.getCompatibleFacets(masterArtifact.getStateHistoryIds())
-            ).write();
+            );
+        return aWriter.write();
     }