Hide content that only shown in specified page (beamer)

There is an itemize in my slide, which is made of beamer, and three pages is generated for the three items.

What I want is that Content "Another content (table) is here...." for the item 1 is only shown in the first page. These content should be hidden in the 2nd and 3rd page.

So how can i reach this that? Thanks very much.

\begin{frame}
\frametitle{Main findings from JRuby micro-indy benchmark }
\begin{itemize}
\item<1-> \textbf{Transformation Pattern} A small number of transformation patterns occur much more frequently than the others.
Another content (table) is here....

\item<2-> \textbf{Instance Pattern} A large number of equivalencies (mean 28.9\%) exist among method handles.%, and a method handle has 7.4 equivalent method handles on average.

\item<3-> \textbf{Instance Pattern} The distribution for the equivalent MHG set's size is uneven.
\end{itemize}
\end{frame}

• put in in an alt : \alt<1>{Here is your text}{\phantom{Here is the text in phantom... actually the same text as first}} – koleygr Sep 8 '17 at 3:28
• In phantom just put the same text as your first to keep the place of the replaced with empty space. – koleygr Sep 8 '17 at 3:30

If the text should simply vanish after the first slide, I suggest using \only<1>{your text}. If you want I to become invisible (i.e. keep the space) you could do \visible<1>{your text}.

\documentclass{beamer}

\begin{document}

\begin{frame}
\frametitle{Main findings from JRuby micro-indy benchmark }
\begin{itemize}[<+->]
\item \textbf{Transformation Pattern} A small number of transformation patterns occur much more frequently than the others.
\only<1>{Another content (table) is here....}

\item \textbf{Instance Pattern} A large number of equivalencies (mean 28.9\%) exist among method handles.%, and a method handle has 7.4 equivalent method handles on average.

\item \textbf{Instance Pattern} The distribution for the equivalent MHG set's size is uneven.
\end{itemize}
\end{frame}

\end{document}