private Entry convert( SplitDockPerspective.Entry entry, Map<PerspectiveDockable, Integer> children ){ if( entry == null ){ return null; } if( entry.asNode() != null ){ SplitDockPerspective.Node node = entry.asNode(); Entry childA = convert( node.getChildA(), children ); Entry childB = convert( node.getChildB(), children ); if( childA == null ){ return childB; } if( childB == null ){ return childA; } return new SplitDockStationLayout.Node( node.getOrientation(), node.getDivider(), childA, childB, toArray( node.getPlaceholders() ), node.getPlaceholderMap(), node.getNodeId() ); } else if( entry.asLeaf() != null ){ SplitDockPerspective.Leaf leaf = entry.asLeaf(); Integer id = children.get( leaf.getDockable() ); return new SplitDockStationLayout.Leaf( id == null ? -1 : id.intValue(), toArray( leaf.getPlaceholders() ), leaf.getPlaceholderMap(), leaf.getNodeId() ); } else{ return convert( ((Root)entry).getChild(), children ); } }