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[GREENFOOT-116] Open Recent on a deleted project not handled well

When using the Open Recent menu to open a project that no longer exists, this exception is printed:

Exception in thread "Thread-416" java.lang.NullPointerException at greenfoot.core.GreenfootMain.deleteClassFiles(GreenfootMain.java:601) at greenfoot.core.GreenfootMain.deleteAllClassFiles(GreenfootMain.java:584) at greenfoot.core.GreenfootMain.prepareGreenfootProject(GreenfootMain.java:449) at greenfoot.core.GreenfootMain.updateApi(GreenfootMain.java:537) at greenfoot.core.GreenfootMain.openProject(GreenfootMain.java:233) at greenfoot.actions.OpenRecentProjectAction$1.run(OpenRecentProjectAction.java:43)

It also incorrectly shows the dialog saying that there is a mismatch between project and greenfoot version.

This should be changed, so that a message dialog is displayed, telling the user that the project no longer exists.

Issue metadata

  • Issue type: Bug
  • Priority: Lowest
  • Fix versions: 1.4.5