java.lang.Object java.lang.ClassLoader java.security.SecureClassLoader
This class extends ClassLoader with additional support for defining classes with an associated code source and permissions which are retrieved by the system policy by default.
Constructor Summary | |
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protected |
SecureClassLoader
() Creates a new SecureClassLoader using the default parent class loader for delegation. |
protected |
SecureClassLoader
(
ClassLoader
parent) Creates a new SecureClassLoader using the specified parent class loader for delegation. |
Method Summary | |
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protected Class |
defineClass
(
String
name, byte[] b, int off, int len,
CodeSource
cs) Converts an array of bytes into an instance of class Class, with an optional CodeSource. |
protected Class |
defineClass
(
String
name,
ByteBuffer
b,
CodeSource
Converts a ByteBuffer Class , with an optional CodeSource. |
protected PermissionCollection |
getPermissions
(
CodeSource
codesource) Returns the permissions for the given CodeSource object. |
Methods inherited from class java.lang. ClassLoader |
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clearAssertionStatus , defineClass , defineClass , defineClass , defineClass , definePackage , findClass , findLibrary , findLoadedClass , findResource , findResources , findSystemClass , getPackage , getPackages , getParent , getResource , getResourceAsStream , getResources , getSystemClassLoader , getSystemResource , getSystemResourceAsStream , getSystemResources , loadClass , loadClass , resolveClass , setClassAssertionStatus , setDefaultAssertionStatus , setPackageAssertionStatus , setSigners |
Methods inherited from class java.lang. Object |
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clone , equals , finalize , getClass , hashCode , notify , notifyAll , toString , wait , wait , wait |
Constructor Detail |
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protected SecureClassLoader(ClassLoader parent)
If there is a security manager, this method first calls the security manager's checkCreateClassLoader method to ensure creation of a class loader is allowed.
protected SecureClassLoader()
If there is a security manager, this method first calls the security manager's checkCreateClassLoader method to ensure creation of a class loader is allowed.
Method Detail |
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protected final Class defineClass(String name, byte[] b, int off, int len, CodeSource cs)
If a non-null CodeSource is supplied a ProtectionDomain is constructed and associated with the class being defined.
protected final ClassdefineClass ( String name, ByteBuffer b, CodeSource cs)
If a non-null CodeSource is supplied a ProtectionDomain is constructed and associated with the class being defined.
protected PermissionCollection getPermissions(CodeSource codesource)
This method is invoked by the defineClass method which takes a CodeSource as an argument when it is constructing the ProtectionDomain for the class being defined.