Added NonceReuseException

openid-connect-server/src/main/java/org/mitre/oauth2/exception/NonceReuseException.java

@@ -0,0 +1,15 @@
+package org.mitre.oauth2.exception;
+
+import org.mitre.openid.connect.model.Nonce;
+import org.springframework.security.oauth2.common.exceptions.OAuth2Exception;
+
+public class NonceReuseException extends OAuth2Exception {
+
+	private static final long serialVersionUID = 1L;
+
+	public NonceReuseException(String clientId, Nonce alreadyUsed) {
+		super("Client " + clientId + " attempted to use nonce " + alreadyUsed.getValue() + " which was used previously at "
+				+ alreadyUsed.getUseDate().toString() + " and expires at " + alreadyUsed.getExpireDate());
+	}
+
+}