private static Entry[] concat(Entry[] attrs1,Entry[] attrs2){
  Entry[] nattrs=new Entry[attrs1.length + attrs2.length];
  System.arraycopy(attrs1,0,nattrs,0,attrs1.length);
  System.arraycopy(attrs2,0,nattrs,attrs1.length,attrs2.length);
  return nattrs;
}

private static Entry [ ] concat ( Entry [ ] attrs1 , Entry [ ] attrs2 ) { Entry [ ] nattrs = new Entry [ attrs1 . length + attrs2 . length ] ; System . arraycopy ( attrs1 , 0 , nattrs , 0 , attrs1 . length ) ; System . arraycopy ( attrs2 , 0 , nattrs , attrs1 . length , attrs2 . length ) ; return nattrs ; }
return a concatenation of the two arrays .
