net/src/main/java/com/stanfy/enroscar/net/operation/executor/ApplicationServiceSupport.java
public void unbind() {
    if (serviceObject == null) { return; }
    serviceObject = null;
    final Context context = contextRef.get();
    if (DEBUG) { Log.v(TAG, "Unbind " + context + " from " + getInterfaceClass()); }
    if (context == null) { return; }
    try {
      context.unbindService(this);
    } catch (final Exception e) {
      if (DEBUG) { Log.e(TAG, "Cannot unbind from application service", e); }
    }
  }
public void unbind() {
    if (serviceObject == null) { return; }
    serviceObject = null;
    final Context context = contextRef.get();
    if (DEBUG) { Log.v(TAG, "Unbind " + context + " from " + getInterfaceClass()); }
    if (context == null) { return; }
    try {
      context.unbindService(this);
    } catch (final Exception e) {
      if (DEBUG) { Log.e(TAG, "Cannot unbind from application service", e); }
    }
  }
Destroy the service connection.