: As far as I know, I do have a full JDK. I'm on OS X and it should come with : a full JDK: : http://developer.apple.com/java/
well, 1) it depends on which version of "OS X" you are running (10.1, 10.2?, 10.3?, 10.4?, 10.5?) but i don't think that's your problem ... you said you could see the admin screen before (so JSPs were working) then you installed Solr-Drupal, and then you couldn't get the admin screens to work. and you were getting this exception. did you manually start jetty when you saw this error? or did drupal? ... either way might be the cause of hte problem ... if drupal started jetty, it may be trying to use a "nobody" user, and can't write to jetyt's tmp dir for JSPs since you already created it as yourself. you might also be seeing a varient of this issue... https://issues.apache.org/jira/browse/SOLR-118 -Hoss
