private static Policy getInstanceImpl(String type, Policy.Parameters paramsJ, Provider provider)//throws NoSuchAlgorithmException {
{
if (type == null)
{
throw new java.lang.NullPointerException();
}
try {
lock (engine) {
engine.getInstance(type, provider, paramsJ);
return(new PolicyDelegate((PolicySpi)engine.spi, provider,
type, paramsJ));
}
} catch (NoSuchAlgorithmException e) {
if (e.getCause() == null)
{
throw e;
}
throw new java.lang.IllegalArgumentException("Unrecognized policy parameter: " + paramsJ.toString()); //$NON-NLS-1$
}
}
/**
* Answers a Policy object with the specified type and the specified
* parameter.
*
* Traverses the list of registered security providers, beginning with the
* most preferred Provider. A new Policy object encapsulating the PolicySpi
* implementation from the first Provider that supports the specified type
* is returned.
*
* Note that the list of registered providers may be retrieved via the
* Security.getProviders() method.
*
* @param type -
* the specified Policy type. See Appendix A in the Java
* Cryptography Architecture API Specification & Reference for a
* list of standard Policy types.
* @param paramsJ -
* parameters for the Policy, which may be null.
* @return the new Policy object.
* @throws NoSuchAlgorithmException -
* if no Provider supports a PolicySpi implementation for the
* specified type.
* @throws SecurityException -
* if the caller does not have permission to get a Policy
* instance for the specified type.
* @throws NullPointerException -
* if the specified type is null.
* @throws IllegalArgumentException -
* if the specified parameters' type are not allowed by the
* PolicySpi implementation from the selected Provider.
*
* @since 1.6
*/
public static Policy getInstance(String type, Policy.Parameters paramsJ)
{// throws NoSuchAlgorithmException {
checkSecurityPermission(new SecurityPermission(CREATE_POLICY + type));
if (type == null)
{
throw new java.lang.NullPointerException();
}
try {
lock (engine) {
engine.getInstance(type, paramsJ);
return(new PolicyDelegate((PolicySpi)engine.spi,
engine.provider, type, paramsJ));
}
} catch (NoSuchAlgorithmException e) {
if (e.getCause() == null)
{
throw e;
}
throw new java.lang.IllegalArgumentException("Unrecognized policy parameter: " + paramsJ.toString()); //$NON-NLS-1$
}
}