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/*
* Copyright(C) 2020 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.javacard.seprovider;
import javacard.framework.JCSystem;
/**
* KMException is shared instance of exception used for all exceptions in the applet. It is used to
* throw EMError errors.
*/
public class KMException extends RuntimeException {
private static short[] reason;
private static KMException exception;
private KMException() {}
public static short reason() {
return reason[0];
}
public static void throwIt(short e) {
if (reason == null) {
reason = JCSystem.makeTransientShortArray((short) 1, JCSystem.CLEAR_ON_DESELECT);
}
if (exception == null) {
exception = new KMException();
}
reason[0] = e;
throw exception;
}
}
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