ReferenceTypeId refId = idMan.readReferenceTypeId(bb);
ClassReferenceTypeId refId = (ClassReferenceTypeId) idMan.readReferenceTypeId(bb);
  private void executeVariableTable(ByteBuffer bb, DataOutputStream os)      throws JdwpException, IOException  {    ReferenceTypeId refId = idMan.readReferenceTypeId(bb);    Class clazz = refId.getType();    ObjectId oid = idMan.readObjectId(bb);    Method method = (Method) oid.getObject();    VariableTable vt = VMVirtualMachine.getVarTable(clazz, method);    vt.write(os);  }