=== removed file 'dhis-2/dhis-api/src/main/java/org/hisp/dhis/program/comparator/ProgramStageInstanceDueDateComparator.java'
--- dhis-2/dhis-api/src/main/java/org/hisp/dhis/program/comparator/ProgramStageInstanceDueDateComparator.java	2015-01-17 07:41:26 +0000
+++ dhis-2/dhis-api/src/main/java/org/hisp/dhis/program/comparator/ProgramStageInstanceDueDateComparator.java	1970-01-01 00:00:00 +0000
@@ -1,56 +0,0 @@
-package org.hisp.dhis.program.comparator;
-
-/*
- * Copyright (c) 2004-2015, University of Oslo
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- * Redistributions of source code must retain the above copyright notice, this
- * list of conditions and the following disclaimer.
- *
- * Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * Neither the name of the HISP project nor the names of its contributors may
- * be used to endorse or promote products derived from this software without
- * specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
- * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-import org.hisp.dhis.program.ProgramStageInstance;
-
-import java.util.Comparator;
-
-/**
- * @author Chau Thu Tran
- * @version $ProgramStageInstanceDueDateComparator.java Jun 7, 2012 9:49:25 AM$
- */
-public class ProgramStageInstanceDueDateComparator
-    implements Comparator<ProgramStageInstance>
-{
-    @Override
-    public int compare( ProgramStageInstance programStageInstance1, ProgramStageInstance programStageInstance2 )
-    {
-        if ( programStageInstance1.getDueDate().before( programStageInstance2.getDueDate() ) )
-        {
-            return -1;
-        }
-        else if ( programStageInstance1.getDueDate().after( programStageInstance2.getDueDate() ) )
-        {
-            return 1;
-        }
-        return 0;
-    }
-
-}

=== removed file 'dhis-2/dhis-api/src/main/java/org/hisp/dhis/program/comparator/ProgramStageMinDaysComparator.java'
--- dhis-2/dhis-api/src/main/java/org/hisp/dhis/program/comparator/ProgramStageMinDaysComparator.java	2015-01-17 07:41:26 +0000
+++ dhis-2/dhis-api/src/main/java/org/hisp/dhis/program/comparator/ProgramStageMinDaysComparator.java	1970-01-01 00:00:00 +0000
@@ -1,60 +0,0 @@
-package org.hisp.dhis.program.comparator;
-
-/*
- * Copyright (c) 2004-2015, University of Oslo
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- * Redistributions of source code must retain the above copyright notice, this
- * list of conditions and the following disclaimer.
- *
- * Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * Neither the name of the HISP project nor the names of its contributors may
- * be used to endorse or promote products derived from this software without
- * specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
- * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-import java.util.Comparator;
-
-import org.hisp.dhis.program.ProgramStage;
-
-/**
- * @author Chau Thu Tran
- * @version $ProgramStageMinDaysComparator.java Jun 12, 2012 3:22:20 PM$
- */
-public class ProgramStageMinDaysComparator implements Comparator<ProgramStage>
-{
-    @Override
-    public int compare( ProgramStage programStage1, ProgramStage programStage2 )
-    {
-        if(  programStage1.getMinDaysFromStart() != programStage2.getMinDaysFromStart() )
-        {
-            return programStage1.getMinDaysFromStart() - programStage2.getMinDaysFromStart();
-        }
-        
-        if ( programStage1.getCreated().before( programStage2.getCreated() ) )
-        {
-            return -1;
-        }
-        else if ( programStage1.getCreated().after( programStage2.getCreated() ) )
-        {
-            return 1;
-        }
-        
-        return 0;
-    }
-}