Eclipse Indigo running on Java 7 does not show ambiguous references to methods

Question

I have an application that used to run on Java 1.5. It compiled and ran well. Recently, I've decided to migrate to Java 1.7.

When I compile the code with Maven (I updated the Java version in the pom.xml), it displays several compilation errors, saying somes references to some methods are ambiguous, which is true. However, on Eclipse, those errors are not shown (I have also updated the compiler of Eclipse to 1.7).

A friend of mine tried to do the same thing on Eclipse Juno and the errors are showing.

Any ideas how to fix that?

Thanks

It may be stupid, but Eclipse sometimes need to be cleaned. So, do `Project` -> `Clean...`, check `Start a build immediately`. Then, if Eclipse keeps not showing the error, let us know — ThanksForAllTheFish, Jan 29 '13 at 13:22
Hi. Thanks for the tip, but I've already tried that. It doesn't work :( — Khoa Nghiem, Jan 29 '13 at 13:25
can you post your `eclipse.ini` file? I am honest, I don't know which your problem may be, I am trying to investigate — ThanksForAllTheFish, Jan 29 '13 at 14:17
Actually, I just updated Eclipse because I was getting late on my work... Sorry. But thanks for trying to help. — Khoa Nghiem, Jan 29 '13 at 15:12

score 0 · Answer 1 · answered Jan 29 '13 at 14:45

0

This problem is because the Eclipse thinks that your project is stil on java 1.5.

You need to go to Project -> Properties -> Java Buildpath -> Libraries and remove the old Jre.
You need to go to Project -> Properties -> Java Buildpath -> Libraries -> Add Library -> Add JRE System Library and ad the new Jre 7 library.

answered Jan 29 '13 at 14:45

AlexGo

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No, that doesn't work either. I did that at the very beginning. But thanks. – Khoa Nghiem Jan 29 '13 at 15:11

Eclipse Indigo running on Java 7 does not show ambiguous references to methods

1 Answers1