Error on startup: 'overlaps the location of another project'...

0.8.0, Linux 14.04

• Opening up VSCode on a folder containing the devoxx sample (https://github.com/fbricon/devoxx.git) gives me the following error:

Contains: /home/aeschli/workspaces/samples/devoxx overlaps the location of another project: 'devoxx'

• the underlying problem is that the hidden Eclipe workspace can only have a single project of a given name
• looks like I already opened some other project called 'devoxx' some time (that's possible)
• it would be good if the other location would be printed so we can find out if it's a valid conflict
• conflicts like that should not be the users concern:
  • a solution would be to always qualify all project names so they are unique
  • an other solution would be to always delete such duplicated projects (and rebuild them if they are used again later)

[Error - 11:07:12 AM] Aug 21, 2017 11:07:11 AM Problem importing to workspace
Invalid project description.
org.eclipse.core.internal.resources.ResourceException: Invalid project description.
at org.eclipse.core.internal.resources.Project.checkDescription(Project.java:169)
at org.eclipse.core.internal.resources.Project.assertCreateRequirements(Project.java:53)
at org.eclipse.core.internal.resources.Project.create(Project.java:263)
at org.eclipse.core.internal.resources.Project.create(Project.java:247)
at org.eclipse.m2e.core.internal.project.ProjectConfigurationManager.create(ProjectConfigurationManager.java:995)
at org.eclipse.m2e.core.internal.project.ProjectConfigurationManager$1.call(ProjectConfigurationManager.java:162)
at org.eclipse.m2e.core.internal.project.ProjectConfigurationManager$1.call(ProjectConfigurationManager.java:1)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.executeBare(MavenExecutionContext.java:177)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:151)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:99)
at org.eclipse.m2e.core.internal.embedder.MavenImpl.execute(MavenImpl.java:1355)
at org.eclipse.m2e.core.internal.project.ProjectConfigurationManager.importProjects(ProjectConfigurationManager.java:143)
at org.eclipse.m2e.core.internal.project.ProjectConfigurationManager.importProjects(ProjectConfigurationManager.java:133)
at org.eclipse.jdt.ls.core.internal.managers.MavenProjectImporter.importToWorkspace(MavenProjectImporter.java:117)
at org.eclipse.jdt.ls.core.internal.managers.ProjectsManager.initializeProjects(ProjectsManager.java:75)
at org.eclipse.jdt.ls.core.internal.handlers.InitHandler$1.run(InitHandler.java:117)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:56)
Contains: OK
Contains: /home/aeschli/workspaces/samples/devoxx overlaps the location of another project: 'devoxx'

Trace the startup path through InitHandler, ProjectsManager, and MavenProjectImporter, using the reported Project.checkDescription failure as the starting point. Determine how duplicate project names are handled and verify that startup no longer leaves the conflict unexplained or fails without identifying the other location.