Description Dieter Mai 2019-07-11 09:09:59 EDT

Hello

If you add a project to a run configuration and the added project has a dependency to a project that is already in the run configuration, then that project is added again and the list becomes erratic.

Actions to reproduce:
[A1] Create a Java project "TestProjectA" with a main class.
[A2] Create a Java project "TestProjectB".
[A3] Add "TestProjectA" to the classpath "TestProjectB"
[A4] Create a new run configuration "TestProjectARunConfig" with "TestProjectA" as the Main Project and its main class as main class.
[A5] Go to the Dependency view of "TestProjectARunConfig"
[A6] Add the Project "TestProjectB" to the classpath of "TestProjectARunConfig". The checkbox "Add required Projects of selected Projects" in the Project Selection dialog has to be checked.

What is Observed
[O1] Project "TestProjectA" is created.
[O2] Project "TestProjectB" is created.
[O3] Dependency is added.
[O4] The run configuration "TestProjectARunConfig" is created 
[O5] The Dependency view displays "TestProjectA" and the jdk in the classpath.
[O6] The Dependency view displays "TestProjectB" [OK] and "TestProjectA" twice [NOK]. The second "TestProjectA" behaves erratic when trying to move [NOK]

What I Expect
[E6] Only "TestProjectB" is added since "TestProjectA" is already in the list

How the issue heals:
- select another run configuration and switch back again. 



My eclipse version:
Version: 2019-06 (4.12)
Build id: 20190614-1200