private static EquinoxSecurityManager getSupportedSystemSecurityManager() {
try {
EquinoxSecurityManager equinoxManager = (EquinoxSecurityManager) System.getSecurityManager();
return equinoxManager != null && equinoxManager.inCheckPermission() ? equinoxManager : null;
} catch (ClassCastException e) {
return null;
}
}
/**
* Returns the absolute path name of a native library.
*
* @param name the library name
* @return the absolute path of the native library or null if not found
*/
public String findLibrary(final String name) {
if (System.getSecurityManager() == null) return findLocalLibrary(name);
return (String)
AccessController.doPrivileged(
new PrivilegedAction() {
public Object run() {
return findLocalLibrary(name);
}
});
}
private static ClassLoader getClassLoader(final Class clazz) {
if (System.getSecurityManager() == null) return clazz.getClassLoader();
return (ClassLoader)
AccessController.doPrivileged(
new PrivilegedAction() {
public Object run() {
return clazz.getClassLoader();
}
});
}
private ClassLoader getParentPrivileged(final BundleClassLoader bcl) {
if (System.getSecurityManager() == null) return bcl.getParent();
return (ClassLoader)
AccessController.doPrivileged(
new PrivilegedAction() {
public Object run() {
return bcl.getParent();
}
});
}
private BundleClassLoader createBCLPrevileged(
final BundleProtectionDomain pd, final String[] cp) {
// Create the classloader as previleged code if security manager is present.
if (System.getSecurityManager() == null) return createBCL(pd, cp);
return (BundleClassLoader)
AccessController.doPrivileged(
new PrivilegedAction() {
public Object run() {
return createBCL(pd, cp);
}
});
}
private static void checkAllPermission() {
SecurityManager sm = System.getSecurityManager();
if (sm != null) sm.checkPermission(new AllPermission());
}