编译后的Eclipse maven无法在Eclipse中看到target / classes文件夹

Question

After doing mvn clean compile install i can not see any files in target/classes folder in eclipse. But when i have a look in filesystem the folder is there with compiled classes files inside. But when i start a unit test, it says "there is no target/classes folder"

Any ideas ???

Answer 1

Solution was: Right click project -> properties -> build path -> Source tab -> "Allow output folders for source folders" and add the output folder target/classes explicit to each source folder. This works for me and after adding all folders, project could be compiled and executed

Answer 2

From my experience it would seam that Eclipse does not monitor the file system for changes. So if you created your classes the you manually ran maven from command line, I suspect you'd have to right click your project in Eclipse (from the Navigator for example), and click refresh, and only after this you'll see the new files.

You could also install the m2e and the m2-wtp maven plugins for Eclipse, and run your build process from inside Eclipse which should detect all the changes on the file system.

Answer 3

Preferences -> General -> Workspace -> Refresh using native hooks or polling

When enabled, any changes made by external editors will be automatically discovered by the Workbench.