How was the first release of JDK Unit Tested?

java, junit

Solution

The JDK is tested , at least now, using jtreg . I am not aware of any usage of JUnit to test the JDK.

Problem

Can someone please explain the following - How was the first JDK release unit Tested? Since Junit came after Java how did they do it? - Are the current releases using Junit to test the JDK API? Regards

Original source