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RT.load doesn't work when called by code that is on the bootstrap classpath

Description

RT.baseLoader assumes Compiler.getClass.getClassLoader will return a sane value. If Clojure is placed on the bootclasspath, it will return null.

Relying on baseLoader less may be possible; it looks like the ClassLoader/getSystemResource static method may get us the access we need to the bootstrap classloader, which would solve the problem I first noticed with using RT.load with the bootstrap classloader. However, there may be other issues beyond this.

More details at http://groups.google.com/group/clojure/browse_thread/thread/16c694573bd29552

I plan on investigating this further, but I've created this ticket to explain what I've discovered so far for posterity, etc.

Note that placing Clojure on the bootclasspath cuts its startup time in half; it's a measure that Charles Nutter of the JRuby project recommends.

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import August 12, 2011 at 1:56 AM

I just tested it again with the latest Clojure from git and it works fine. Here's an easy test that breaks without the fix: java -Xbootclasspath/a:clojure-1.3.0-master-SNAPSHOT.jar clojure.main -e "(require 'clojure.pprint)"

Aaron Bedra August 6, 2011 at 4:17 PM

Patch looks reasonable, but I am waiting for a response from Phil to see if this resolves his issue.

Kevin Downey June 30, 2011 at 4:04 AM

'lo as if from nowhere a patch!

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Created November 8, 2010 at 9:48 PM
Updated September 23, 2011 at 10:00 PM
Resolved September 23, 2011 at 10:00 PM