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Java library for Javascript Object Signing and Encryption (JOSE) and JSON Web Tokens (JWT)

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package com.nimbusds.jose.jwk.source;


import java.util.List;

import com.nimbusds.jose.jwk.JWK;
import com.nimbusds.jose.jwk.JWKSelector;
import com.nimbusds.jose.jwk.JWKSet;
import com.nimbusds.jose.proc.SecurityContext;
import net.jcip.annotations.Immutable;


/**
 * JSON Web Key (JWK) source backed by an immutable JWK set.
 *
 * @author Vladimir Dzhuvinov
 * @version 2016-04-10
 */
@Immutable
public class ImmutableJWKSet implements JWKSource {


	/**
	 * The JWK set.
	 */
	private final JWKSet jwkSet;


	/**
	 * Creates a new JWK source backed by an immutable JWK set.
	 *
	 * @param jwkSet The JWK set. Must not be {@code null}.
	 */
	public ImmutableJWKSet(final JWKSet jwkSet) {
		if (jwkSet == null) {
			throw new IllegalArgumentException("The JWK set must not be null");
		}
		this.jwkSet = jwkSet;
	}


	/**
	 * Returns the JWK set.
	 *
	 * @return The JWK set.
	 */
	public JWKSet getJWKSet() {
		return jwkSet;
	}


	/**
	 * {@inheritDoc} The security context is ignored.
	 */
	@Override
	public List get(final JWKSelector jwkSelector, final C context) {

		return jwkSelector.select(jwkSet);
	}
}