public String toShortString() {
    // Call[id=32153218,methodName=Get]
    return new ToStringBuilder(this, ToStringStyle.SHORT_PREFIX_STYLE).append("id", id)
      .append("methodName", md != null ? md.getName() : "").toString();
  }
Builds a simplified {@link #toString()} that includes just the id and method name.
hbase-client/src/main/java/org/apache/hadoop/hbase/ipc/Call.java