com.sun.istack.tools.SecureLoader Maven / Gradle / Ivy
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package com.sun.istack.tools;
/**
* Class defined for safe calls of getClassLoader methods of any kind (context/system/class
* classloader. This MUST be package private and defined in every package which
* uses such invocations.
* @author snajper
*/
class SecureLoader {
static ClassLoader getContextClassLoader() {
if (System.getSecurityManager() == null) {
return Thread.currentThread().getContextClassLoader();
} else {
return (ClassLoader) java.security.AccessController.doPrivileged(
new java.security.PrivilegedAction() {
public java.lang.Object run() {
return Thread.currentThread().getContextClassLoader();
}
});
}
}
static ClassLoader getClassClassLoader(final Class c) {
if (System.getSecurityManager() == null) {
return c.getClassLoader();
} else {
return (ClassLoader) java.security.AccessController.doPrivileged(
new java.security.PrivilegedAction() {
public java.lang.Object run() {
return c.getClassLoader();
}
});
}
}
static ClassLoader getSystemClassLoader() {
if (System.getSecurityManager() == null) {
return ClassLoader.getSystemClassLoader();
} else {
return (ClassLoader) java.security.AccessController.doPrivileged(
new java.security.PrivilegedAction() {
public java.lang.Object run() {
return ClassLoader.getSystemClassLoader();
}
});
}
}
static ClassLoader getParentClassLoader(final ClassLoader cl) {
if (System.getSecurityManager() == null) {
return cl.getParent();
} else {
return (ClassLoader) java.security.AccessController.doPrivileged(
new java.security.PrivilegedAction() {
public java.lang.Object run() {
return cl.getParent();
}
});
}
}
static void setContextClassLoader(final ClassLoader cl) {
if (System.getSecurityManager() == null) {
Thread.currentThread().setContextClassLoader(cl);
} else {
java.security.AccessController.doPrivileged(
new java.security.PrivilegedAction() {
public java.lang.Object run() {
Thread.currentThread().setContextClassLoader(cl);
return null;
}
});
}
}
}