tree a139bf4661352777370d6cd911b437d0b71ca6b8
parent 018d5fdc880f2ae8f22d4d4085c604d6dd51d87b
author Dave Twaddell <dave@twaddell.org> 1617814334 -0400
committer Lukas Jungmann <lukas.jungmann@oracle.com> 1623755543 +0200

Fixed regex for java version

The current Sed does not correctly handle java version strings that only include the major version: 
```
echo "openjdk version "16" 2021-03-16" | java -version 2>&1 | head -n 1 | cut -d'"' -f2 | sed -E 's/^(foo)?([0-9]+).+$/\2/'
1
```

The fix is to change the regex from `+` to `*`:
```
$ echo "openjdk version "16" 2021-03-16" | java -version 2>&1 | head -n 1 | cut -d'"' -f2 | sed -E 's/^(foo)?([0-9]+).*$/\2/'
16
```