Fixed an issue where there are no available catalogs. There was an IndexOutOfBoundsException, which is a no-no.

git-svn-id: https://olap4j.svn.sourceforge.net/svnroot/olap4j/trunk@238 c6a108a4-781c-0410-a6c6-c2d559e19af0

Author: lucboudreau

src/org/olap4j/driver/xmla/XmlaOlap4jConnection.java

@@ -386,7 +386,13 @@ public String getCatalog() throws OlapException {
         if (this.catalogName == null) {
             // This means that no particular catalog name
             // was specified by the user.
-            this.catalogName = this.getCatalogs().get(0).getName();
+            List<Catalog> catalogs = this.getCatalogs();
+            if (catalogs.size() == 0) {
+                throw new OlapException("There is no catalog " +
+                    "available to query against.");
+            } else {
+                this.catalogName = catalogs.get(0).getName();
+            }
         } else {
             // We must verify that the requested catalog name
             // exists in the metadata.