Cannot add the TextNG 7.0 library

[vkadlcik]

Problem Statement

I cannot create a project with TestNG 7.0.0 or add the library to an existing project. I always get Invalid classpath container: 'TestNG'.

My SW:

• Fedora 30
• OpenJDK 1.8 (java-1.8.0-openjdk-devel-1.8.0.212.b04-0.fc30.x86_64)
• Eclipse Platform + JDT of SimRel 2019-06
• org.testng 7.0.0.r201908191551
• org.testng.eclipse 7.0.0.201908201535

configuration.txt is my Eclipse configuration taken from Help > About. setup.sh.txt is my minimal reproducing setup script (note: it's destructive).

Steps to reproduce the problem:

1. File > New > Project... > Java > Java Project, click "Next >"
2. Project name: o.e.vk.p1, click "Next >"
3. Select the Libraries tab, click "Add Library...", double-click "TextNG", click "Finish", click "Finish"
4. Confirm switching to the Java perspective

Immediately you get 2 errors in the Problems view, the primary one is:
Invalid classpath container: 'TestNG' in project 'o.e.vk.p1'

The workspace log says:

!MESSAGE Null entry in container 'org.testng.TESTNG_CONTAINER'

!ENTRY org.eclipse.ui 4 0 2019-08-23 11:00:54.486
!MESSAGE Unhandled event loop exception
!STACK 0
java.lang.NullPointerException
        at org.eclipse.jdt.internal.ui.packageview.ClassPathContainer.getChildren(ClassPathContainer.java:202)
        ...

Now on exiting Eclipse, you get a window with "Problems saving workspace"

and in the workspace log:

!MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.core.resources".
!STACK 0
java.lang.NullPointerException
        at org.eclipse.jdt.internal.compiler.util.HashtableOfObjectToInt.get(HashtableOfObjectToInt.java:75)
        ...

Here is the workspace log in full.

I see similarities with #443 and #444 so it's possible that all these issues share a common root cause.

[missedone]

thanks for reporting,
fixed in new release 7.0.0.201908240652
pls verify

[vkadlcik]

thanks for reporting,
fixed in new release 7.0.0.201908240652

pretty swift :-)

pls verify

works for me, thanks for fixing this