Starting language server crashes

When building SAP hybris from the command line (outside of vscode) with ant, nearly all class files get regenerated.
Afterwards the langage server hangs at 22-24% and outputs the error logs down below.

Environment

• Operating System: macOS 10.12.6 (16G1036)
• JDK version: 1.8.0_144
• Visual Studio Code version: Version 1.18.0 (1.18.0)
• Java extension version: 0.14.0

Steps To Reproduce

1. Start vscode and load a java file -> language server gets invoked
2. rebuild whole SAP hybris suite (several 10k classes)
   3 switch back to vscode -> the language server tries to refresh and crashes

[attach a sample project reproducing the error]
attach logs

Current Result

[Error - 15:42:07] 16.11.2017 15:40:54 Invalid project description.
[Error - 15:42:07] 16.11.2017 15:40:54 An internal error occurred during: "Initialize Workspace".
org.eclipse.core.internal.resources.ResourceException: Invalid project description.
java.lang.RuntimeException: org.eclipse.core.internal.resources.ResourceException: Invalid project description.
	at org.eclipse.jdt.ls.core.internal.managers.EclipseProjectImporter.importDir(EclipseProjectImporter.java:96)
	at org.eclipse.jdt.ls.core.internal.managers.EclipseProjectImporter.lambda$0(EclipseProjectImporter.java:63)
	at java.util.ArrayList.forEach(ArrayList.java:1249)
	at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080)
	at org.eclipse.jdt.ls.core.internal.managers.EclipseProjectImporter.importToWorkspace(EclipseProjectImporter.java:63)
	at org.eclipse.jdt.ls.core.internal.managers.ProjectsManager.importProjects(ProjectsManager.java:100)
	at org.eclipse.jdt.ls.core.internal.managers.ProjectsManager.access$1(ProjectsManager.java:94)
	at org.eclipse.jdt.ls.core.internal.managers.ProjectsManager$1.run(ProjectsManager.java:88)
	at org.eclipse.jdt.internal.core.BatchOperation.executeOperation(BatchOperation.java:39)
	at org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:724)
	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2240)
	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2267)
	at org.eclipse.jdt.core.JavaCore.run(JavaCore.java:5660)
	at org.eclipse.jdt.core.JavaCore.run(JavaCore.java:5617)
	at org.eclipse.jdt.ls.core.internal.managers.ProjectsManager.initializeProjects(ProjectsManager.java:82)
	at org.eclipse.jdt.ls.core.internal.handlers.InitHandler$1.runInWorkspace(InitHandler.java:157)
	at org.eclipse.core.internal.resources.InternalWorkspaceJob.run(InternalWorkspaceJob.java:39)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:56)
Caused by: 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.jdt.ls.core.internal.managers.EclipseProjectImporter.importDir(EclipseProjectImporter.java:92)
	... 17 more

Expected Result

Don't crash

Additional Informations

Tái hiện crash bằng cách mở một tệp Java trong VS Code và build lại bộ SAP hybris bằng Ant, sử dụng môi trường macOS và JDK đã nêu nếu có thể. Bắt đầu với stack trace tại EclipseProjectImporter.java:96 và theo dõi quá trình khởi tạo qua ProjectsManager và InitHandler. Được xem là hoàn tất khi language server hoàn thành việc làm mới workspace mà không có lỗi Invalid project description.