It does not matter which classloader you use. The classes loaded by the
SystemClassLoader will allways be available due to the ClassLoader parent
delegation.
Regards,
Hiram
>From: Jason Dillon <[EMAIL PROTECTED]>
>To: Dain Sundstrom <[EMAIL PROTECTED]>
>CC: JBoss-dev <[EMAIL PROTECTED]>
>Subject: Re: [JBoss-dev] Loading array class object by name
>Date: Sun, 24 Feb 2002 18:18:15 -0800
>
>Hrm... did you try using ClassLoader.getSystemClassLoader() ?
>
>--jason
>
>
>Dain Sundstrom wrote:
>
>>Doesn't work. I tried [Ljava/lang/Object; and both without the
>>semicolon.
>>
>>-dain
>>
>>Jason Dillon wrote:
>>
>>>Try loading "[Ljava.lang.Object;" instead... which is the class name
>>>returned from Object[].class.getName();
>>>
>>>--jason
>>>
>>>
>>>Dain Sundstrom wrote:
>>>
>>>>
>>>>
>>>>Jason Dillon wrote:
>>>>
>>>>>What is the value for name you are using?
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>In my test code "java.lang.Object[]"
>>>>
>>>>
>>>>>Why not just use Class.class?
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>Because I am trying to load a parameter type from an xml file that
>>>>
>>>>just has the string name of the type.
>>>>
>>>>
>>>>
>>>>>Or if you really want to use Class.forName to load Class, then you
>>>>>should be able to use the system class loader.
>>>>
>>>>
>>>>
>>>>
>>>>>
>>>>>Is this after yesterdays Server/ServerLoader change?
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>No new feature. Class.forName docs say you can load arrays but it
>>>>is broken. Here is the code I use now:
>>>>
>>>>private Class convertToJavaClass(String name) throws
>>>>DeploymentException {
>>>> // Check primitive first
>>>> for (int i = 0; i < PRIMITIVES.length; i++) {
>>>> if(name.equals(PRIMITIVES[i])) {
>>>> return PRIMITIVE_CLASSES[i];
>>>> }
>>>> }
>>>>
>>>> int arraySize = 0;
>>>> while(name.endsWith("[]")) {
>>>> name = name.substring(0, name.length()-2);
>>>> arraySize++;
>>>> }
>>>>
>>>> try {
>>>> // get the base class
>>>> Class c = entity.getClassLoader().loadClass(name);
>>>>
>>>> // if we have an array get the array class
>>>> if(arraySize > 0) {
>>>> int[] dimensions = new int[arraySize];
>>>> for(int i=0; i<arraySize; i++) {
>>>> dimensions[i]=1;
>>>> }
>>>> c = Array.newInstance(c, dimensions).getClass();
>>>> }
>>>>
>>>> return c;
>>>> } catch(ClassNotFoundException e) {
>>>> throw new DeploymentException("Parameter class not found: " +
>>>> name);
>>>> }
>>>>}
>>>>
>>>>This is lame but works.
>>>>
>>>>-dain
>>>
>>>
>>>
>>>
>>
>
>
>
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