Be graceful with pathes that contain any number of repeated "/" when searching...

Be graceful with pathes that contain any number of repeated "/" when searching the pathinfo db (better fix for SOB-27).

SVN: 24315

datastore_server/source/java/ch/systemsx/cisd/openbis/dss/generic/server/DatabaseBasedDataSetPathInfoProvider.java

@@ -185,7 +185,7 @@ public class DatabaseBasedDataSetPathInfoProvider implements IDataSetPathInfoPro
 
         public DataSetPathInfo tryGetPathInfoByRelativePath(String relativePath)
         {
-            final String normalizedRelativePath = relativePath.replaceAll("//", "/");
+            final String normalizedRelativePath = relativePath.replaceAll("/+", "/");
             DataSetFileRecord record =
                     dao.tryToGetRelativeDataSetFile(dataSetId, normalizedRelativePath);
             if (record != null)