Class Loader
- java.lang.Object
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- org.apache.log4j.helpers.Loader
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public class Loader extends java.lang.Object
Load resources (or images) from various sources.- Author:
- Ceki Gülcü
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Constructor Summary
Constructors Constructor Description Loader()
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Method Summary
All Methods Static Methods Concrete Methods Deprecated Methods Modifier and Type Method Description static java.net.URL
getResource(java.lang.String resource)
This method will search forresource
in different places.static java.net.URL
getResource(java.lang.String resource, java.lang.Class clazz)
Deprecated.as of 1.2.static boolean
isJava1()
Deprecated.with no replacementstatic java.lang.Class
loadClass(java.lang.String clazz)
Load the specified class using the method.
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Method Detail
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getResource
public static java.net.URL getResource(java.lang.String resource, java.lang.Class clazz)
Deprecated.as of 1.2.Get a resource by delegating to getResource(String).- Parameters:
resource
- resource nameclazz
- class, ignored.- Returns:
- URL to resource or null.
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getResource
public static java.net.URL getResource(java.lang.String resource)
This method will search forresource
in different places. The search order is as follows:Search for
resource
using the thread context class loader, unless "log4j.ignoreTCL" system property was set to true.Search for
resource
using the class loader that loaded this class (Loader
).- Try one last time with
ClassLoader.getSystemResource(resource)
, that is is using the system class loader.
Nota bene: In versions of reload4j 1.2.23 and earlier, the jaadoc documentation stated that the thread context class loader was used but when running under JDK 9 and later this was not actually the case. As of version 1.2.25, the javadoc corresponds to the original intention as documented.
- Parameters:
resource
- the resource to load
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isJava1
@Deprecated public static boolean isJava1()
Deprecated.with no replacementAre we running under JDK 1.x?
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loadClass
public static java.lang.Class loadClass(java.lang.String clazz) throws java.lang.ClassNotFoundException
Load the specified class using the method.Nota bene: In versions of reload4j 1.2.23 and earlier, the documentation stated that the thread context class loader was used to load the specified class but when running under JDK 9 and later this was not actually the case. As of version 1.2.24, the javadoc above matches the code as executed.
- Parameters:
clazz
- the name of class to load- Throws:
java.lang.ClassNotFoundException
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