Compile error when compiling the giraph shortest path problem: getOutEdgeMap()

I have some problem when I compiling the giraph shortest path problem

I can't understand exactly getOutEdgeMap() method.
Should I implement it?

and also I have other compile errors.

I just write a source code like this; https://github.com/aching/Giraph/wiki/Shortest-Paths-Example

I attach error messages.

--------------------
sp/SimpleShortestPathVertex.java:55: error: cannot find symbol
for(Edge<LongWritable, FloatWritable> edge : getOutEdgeMap().values()){
^
symbol: method getOutEdgeMap()
location: class SimpleShortestPathVertex
sp/SimpleShortestPathVertex.java:74: error: cannot find symbol
FileInputFormat.addInputPath(job, new Path(args[0]));
^
symbol: variable FileInputFormat
location: class SimpleShortestPathVertex
sp/SimpleShortestPathVertex.java:75: error: cannot find symbol
FileOutputFormat.setOutputPath(job, new Path(args[1]));
^
symbol: variable FileOutputFormat
location: class SimpleShortestPathVertex
sp/SimpleShortestPathVertex.java:88: error: no suitable method found for run(SimpleShortestPathVertex,String[])
System.exit(ToolRunner.run(new SimpleShortestPathVertex(), args));
^
method ToolRunner.run(Tool,String[]) is not applicable
(actual argument SimpleShortestPathVertex cannot be converted to Tool by method invocation conversion)
method ToolRunner.run(Configuration,Tool,String[]) is not applicable
(actual and formal argument lists differ in length)
sp/SimpleShortestPathVertex.java:100: error: SimpleShortestPathVertexReader is not abstract and does not override abstract method getCurrentVertex() in VertexReader
class SimpleShortestPathVertexReader extends TextVertexReader<LongWritable, DoubleWritable, FloatWritable, DoubleWritable>{
^
sp/SimpleShortestPathVertex.java:121: error: method addEdge in class MutableVertex<I,V,E,M> cannot be applied to given types;
vertex.addEdge(new Edge<LongWritable, FloatWritable>(new LongWritable(jEdge.getLong(0)), new FloatWritable((float)jEdge.getDouble(1))));
^
required: LongWritable,FloatWritable
found: Edge<LongWritable,FloatWritable>
reason: actual and formal argument lists differ in length
where I,V,E,M are type-variables:
I extends WritableComparable declared in class MutableVertex
V extends Writable declared in class MutableVertex
E extends Writable declared in class MutableVertex
M extends Writable declared in class MutableVertex
sp/SimpleShortestPathVertex.java:139: error: lineRecordWriter has private access in TextVertexWriter
super(lineRecordWriter);
^
sp/SimpleShortestPathVertex.java:150: error: cannot find symbol
for(Edge<LongWritable, FloatWritable> edge : vertex.getOutEdgeMap().values()){
^
symbol: method getOutEdgeMap()
location: variable vertex of type BasicVertex<LongWritable,DoubleWritable,FloatWritable,?>
8 errors