Fixed an issue where there are no available catalogs. There was an In…

…dexOutOfBoundsException, which is a no-no.

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

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.