Differences @Get x @GET; @Post x @POST with @Path

[Bruno Mendes]

I'm developing an application where a POST to /operations will create a new 
Operation, a GET to /operations/{code} will either return the Operation in XML 
or in JSON, depending on the Header parameter Accept.

In order to achieve the path, I had to use @Path("operations") in the class 
declaration and @Path("{code}") in the GET methods.

Using @Get or @Post (from org.restlet) didn't work at all. But when I changed 
it to @GET and @POST (from javax.ws) it worked as expected.

So I have three questions:

1- Is it possible to use @Get and @Post with @Path?
2- What are the differences between: @Get and @GET; and between @Post and @POST 
(because it seems using @GET and @POST I can do more things)?
3- If they have different purposes, then am I supposed to annotate my methods 
with both @Get and @GET?

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http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447&dsMessageId=2730188
package br.org.bmnds.restlet.thirdapplication;

import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;

import org.restlet.data.Form;

@Path("operations")
public class OperationServerResource {

	private static OperationDAO operationDAO = new OperationDAO();
	
	@GET
	@Path("{code}")
	@Produces({"text/xml","application/json"})
	public Operation retrieveXML(@PathParam("code") String code) {
		return operationDAO.find(code);
	}
	
	@POST
	public void handlePostJAXRS(Form form) {
		String code = form.getFirstValue("code");
		String name = form.getFirstValue("name");
		String type = form.getFirstValue("type");
		Operation operation = new Operation(code, name, OperationType.valueOf(type));
		operationDAO.save(operation);
	}
	
}