Before conversion:
```
$ make test TEST=test/langtools/tools/javac
[...]
Test results: passed: 3,938; excluded: 4; did not match keywords: 2; did not meet platform requirements: 2
Framework-based tests: 3043 = 2762 TestNG + 281 JUnit
[...]
```

After automatic conversion with https://github.com/lahodaj/netbeans/tree/openjdk-testng-junit-fixes-and-hacks/java/java.openjdk.project/junit-convert
```
$ make test TEST=test/langtools/tools/javac
[...]
Test results: passed: 3,919; failed: 20; excluded: 4; did not match keywords: 2; did not meet platform requirements: 2
Framework-based tests: 420 = 0 TestNG + 420 JUnit
[...]
```