I have my Jenkins system set up to automatically install Java 7. When I add a new project and try to build, I see errors saying:

Started by an SCM change
Building in workspace /var/lib/jenkins/jobs/FeedWatcher/workspace
Installing /var/lib/jenkins/tools/Java_SE_7/jdk.sh
[Java_SE_7] $ /var/lib/jenkins/tools/Java_SE_7/jdk.sh -noregister
/var/lib/jenkins/tools/Java_SE_7/jdk.sh: 1: cannot open html: No such file
/var/lib/jenkins/tools/Java_SE_7/jdk.sh: 2: cannot open head: No such file
/var/lib/jenkins/tools/Java_SE_7/jdk.sh: 3: cannot open title: No such file
/var/lib/jenkins/tools/Java_SE_7/jdk.sh: 3: Request: not found
/var/lib/jenkins/tools/Java_SE_7/jdk.sh: 4: cannot open META: No such file
/var/lib/jenkins/tools/Java_SE_7/jdk.sh: 5: cannot open link: No such file
/var/lib/jenkins/tools/Java_SE_7/jdk.sh: 6: cannot open link: No such file
/var/lib/jenkins/tools/Java_SE_7/jdk.sh: 7:
: not found
/var/lib/jenkins/tools/Java_SE_7/jdk.sh: 8: cannot open body: No such file
/var/lib/jenkins/tools/Java_SE_7/jdk.sh: 9: cannot open div: No such file
/var/lib/jenkins/tools/Java_SE_7/jdk.sh: 10: cannot open table: No such file
/var/lib/jenkins/tools/Java_SE_7/jdk.sh: 11: cannot open tr: No such file
/var/lib/jenkins/tools/Java_SE_7/jdk.sh: 12: Syntax error: redirection unexpected
ERROR: Failed to install JDK. Exit code=2
Finished: FAILURE

Looking at /var/lib/jenkins/tools/Java_SE_7/jdk.sh, I see it's HTML generated from an Oracle site.