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Classloader

 
Greenhorn
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Can we load a user defined class using bootstrap classloader?
 
Rancher
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Android Eclipse IDE Ubuntu
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You can, but probably not in the way you thought. I'm looking for a link, but there was a white paper by Ted Neward where he gave an example of replacing standard Java libraries using the -Xbootclasspath setting.
 
David O'Meara
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Oh (pdf), that wasn't so hard. Hope this helps.

Dave
 
Santy Jagtap
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Yes that was of gr8 help to me...
But just want to know is there any other way of doing the same?
 
David O'Meara
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weeeeelllllll, you could write your own JVM?
 
Santy Jagtap
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generally bootestrap classes are loaded from jre's lib directory
so can we put our class file into that.
Not sure whether it 'll load using bootstrap classloader or system?
 
David O'Meara
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Read the section Solution Discussion, Part I where they do just this. The observation is that by outputting the sun.boot.class.path property, there are non-existant locations included in the boothpath. By placing files there, they get loaded by the boot ClassLoader! Sounds nasty and non-transferable, but true.

Possibly a question I should have asked earlier: Why?
 
Santy Jagtap
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generally bootestrap classes are loaded from jre's lib directory
so can we put our class file into that.
Not sure whether it 'll load using bootstrap classloader or system?
 
David O'Meara
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You should test it and find out.
 
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