Sharing contextual data b/w Request and Response filters

PassingDataFromReqToResponseFilter.java

@Priority(Priorities.AUTHENTICATION)
public class ReqFilter_1 implements ContainerRequestFilter {
  
  @Override
  public void filter(ContainerRequestContext cReqCtx) throws IOException {
    cReqCtx.setProperty("random-token", "token-007"); //generated and used internally
  }
}

public class ResponseFilter implements ContainerResponseFilter {
  
  @Override
  public void filter(ContainerRequestContext cReqCtx, ContainerResponseContext cRespCtx) throws IOException {
    String responseToken = (String) cReqCtx.getProperty("random-token"); //get the property
    if(responseToken!=null){
      cRespCtx.getHeaders.put("random-token-header" , responseToken); //set it to HTTP response header
    }
  }
}