NPE when using bootstrap or system class loader
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Key: JGRP-34
URL: http://jira.jboss.com/jira/browse/JGRP-34
Project: JGroups
Type: Bug
Environment: Sybase Application Server 4
Reporter: Kristoffer Olson
Assigned to: Bela Ban
NPE when using bootstrap or system class loader
Some classes assumes that classes are not loaded from
bootstrap or system class loader, e.g.
org.jgroups.conf.ClassConfigurator (line 43):
getClass().getClassLoader().loadClass("javax.xml.parsers.DocumentBuilderFactory");
getClass().getClassLoader() can return null if the
class is loaded using system class loader or bootstrap
class
loader(http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Class.html#getClassLoader()).
Searching for .getClassLoader() in the source code for
2.2.7 produced the following results:
org\jgroups\blocks\MethodCall.java(298):
parameter=Class.forName(name, false, cl.getClassLoader());
org\jgroups\conf\ClassConfigurator.java(43):
getClass().getClassLoader().loadClass("javax.xml.parsers.DocumentBuilderFactory");
org\jgroups\conf\ClassConfigurator.java(117): return
ClassConfigurator.class.getClassLoader().loadClass(clazzname);
org\jgroups\conf\ClassMap.java(50): return
getClass().getClassLoader().loadClass(getClassName());
org\jgroups\conf\ClassPathEntityResolver.java(50):
InputStream stream =
getClass().getClassLoader().getResourceAsStream(url);
org\jgroups\conf\MagicNumberReader.java(43):
InputStream
stream=getClass().getClassLoader().getResourceAsStream(mMagicNumberFile);
org\jgroups\stack\Configurator.java(575):
loader=this.getClass().getClassLoader();
org\jgroups\stack\Configurator.java(585):
loader=this.getClass().getClassLoader();
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