In Java2, ClassLoaders got much fancier.
The "null" ClassLoader is the bootstrap loader, which is used to load
things in the boot classpath (sun.boot.class.path).
Applications, on the other hand, are loaded by the AppClassLoader (subclass
of URLClassLoader, IIRC), so this is NOT the so-called boot loader.
A big advantage of non-boot ClassLoaders is that, if/when they are GC'd,
all the java.lang.Class objects they loaded can be GC'd, too.
-blair
Blair Wyman -- iSeries JVM -- (507) 253-2891
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"It is a sobering thought that when Mozart was my age,
he had been dead for two years." -- Tom Lehrer
RAMESH
VISHNUVARDHAN To: "JDJList"
<[EMAIL PROTECTED]>
<[EMAIL PROTECTED]> cc:
Subject: [jdjlist] RE: Classloader is
null
05/24/2002 10:35
AM
Please respond to
"JDJList"
Upto my knowledge, the main class will be loaded by the bootstrap
classloader.When i execute the following code I get
sun.misc.Launcher$AppClassLoader@7fdcde. I think this is the bootstrap
classloader.
public class Test{
public static void main(String args[]) {
System.out.println(Test.class.getClassLoader());
}
}
-----Original Message-----
From: Fewtrell, Tom
To: JDJList
Sent: 5/24/02 5:05 PM
Subject: [jdjlist] RE: Classloader is null
The javadoc contains the following for Class's getClassLoader() method:
"Some implementations may use null to represent the bootstrap class
loader.
This method will return null in such implementations if this class was
loaded by the bootstrap class loader."
Is the bootstrap classloader used for Strings? or maybe something to do
with
bootstrapping for the main method?
-----Original Message-----
From: RAMESH VISHNUVARDHAN [mailto:[EMAIL PROTECTED]]
Sent: Friday, May 24, 2002 3:48 PM
To: JDJList
Subject: [jdjlist] Classloader is null
Hi all,
I am executing the following code:
public class Test{
public static void main(String args[]) {
System.out.println(new String().getClass().getClassLoader());
}
}
I am getting the output as null. How can be a class without classloader?
Can
anybody explain why am i getting null.
Regards,
Vishnu
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