Functioning JDK installation after the Oracle site change. They now put binaries behind SSO, so we need a real HTML scraper to be able to get past this, hence the htmlunit dependency.

again.

Conflicts:
	changelog.html

And there's no need to maintain the password in memory anyway.

fixes reference count leaks.

3a38a67c that causes update center to
fail to accept updates.

Enhancements for Maven dependency graph

[FIXED JENKINS-10367] Maven modules which are not buildable should be excluded from the dependency graph