unable to deployed java programm into my google app engine

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lang="cs">import java.io.IOException;
import javax.servlet.http.*;

import com.sun.istack.internal.logging.Logger;

@SuppressWarnings("serial")
public class ChintamaniprogrammServlet extends HttpServlet {
//private static final Logger logger=logger.getLogger("chintamaniprogrammServlet");
public void doGet(HttpServletRequest req, HttpServletResponse resp)
throws IOException {
resp.setContentType("text/plain");
resp.getWriter().println("Chintamani Tripathy");
}

hi all,i am unable to deployed into google app engine,and showing error that
java.lang.RuntimeException: The application contains Java 7 classes, but the --use_java7 flag has not been set.please anyone having idea then tell me.

Posted 18-Dec-12 0:23am

chinta123

Updated 18-Dec-12 1:08am

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Richard MacCutchan 18-Dec-12 6:58am

The message is telling you what is wrong and how to fix it.

chinta123 18-Dec-12 7:09am

ava.lang.RuntimeException: The application contains Java 7 classes, but the --use_java7 flag has not been set.please anyone having idea then tell me.
This is my error.

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TorstenH. · Answer 1 · 2012-12-18T06:06:00

The application contains Java 7 classes, but the --use_java7 flag has not been set.

so hard to understand?

You are working with Java7 on your development machine. There are certain differences between Java6 and Java 7 ( New Features in Java7[^]

so to use your full-blown, serious rocking Java7 toxicated application, you need to tell the Google App Engine that your code is working on Java7, and that the Google App Engine should be aware of that.

Blogpost about using Java7[^] @ Google App Engine Blog

What I would do:
- uninstall Java7 on th develoment machine
- install java6 latest Release

- configure to use Java6

- try again if App runs (all functions!).

100 times safer.