'Must Override a Superclass Method' Errors after importing a project into Eclipse
Anytime I have to re-import my projects into Eclipse (if I reinstalled Eclipse, or changed the location of the projects), almost all of my overridden methods are not formatted correctly, causing the error The method must override a superclass method.
It may be noteworthy to mention this is with Android projects - for whatever reason, the method argument values are not always populated, so I have to manually populate them myself. For instance:
list.setOnCreateContextMenuListener(new OnCreateContextMenuListener() {
//These arguments have their correct names
public void onCreateContextMenu(ContextMenu menu, View v,
ContextMenuInfo menuInfo) {
}
});
will be initially populated like this:
list.setOnCreateContextMenuListener(new OnCreateContextMenuListener() {
//This methods arguments were not automatically provided
public void onCreateContextMenu(ContextMenu arg1, View arg2,
ContextMenuInfo arg3) {
}
});
The odd thing is, if I remove my code, and have Eclipse automatically recreate the method, it uses the same argument names I already had, so I don't really know where the problem is, other then it auto-formatting the method for me.
This becomes quite a pain having to manually recreate ALL my overridden methods by hand. If anyone can explain why this happens or how to fix it .. I would be very happy.
Maybe it is due to the way I am formatting the methods, which are inside an argument of another method?
2Answer
Eclipse is defaulting to Java 1.5 and you have classes implementing interface methods (which in Java 1.6 can be annotated with @Override, but in Java 1.5 can only be applied to methods overriding a superclass method).
Go to your project/ide preferences and set the java compiler level to 1.6 and also make sure you select JRE 1.6 to execute your program from eclipse.
- answered 8 years ago
- Sandy Hook
In case this happens to anyone else who tried both alphazero and Paul's method and still didn't work.
For me, eclipse somehow 'cached' the compile errors even after doing a Project > Clean...
I had to uncheck Project > Build Automatically, then do a Project > Clean, and then build again.
Also, when in doubt, try restarting Eclipse. This can fix a lot of awkward, unexplainable errors.
- answered 8 years ago
- Sandy Hook
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