private void put(Map<String,String> variables,Object key,Object value){
  variables.put(String.valueOf(key),String.valueOf(value));
}

private void put ( Map < String , String > variables , Object key , Object value ) { variables . put ( String . valueOf ( key ) , String . valueOf ( value ) ) ; }
just a little helper method that safes me from writing to many string . valueof ( ) . .
