# CrashController.java

    /*
     * Copyright 2012-2019 the original author or authors.
     *
     * 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
     *
     *      https://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 org.springframework.samples.petclinic.system;

    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.GetMapping;

    /**
     * Controller used to showcase what happens when an exception is thrown
     *
     * @author Michael Isvy
     * <p/>
     * Also see how a view that resolves to "error" has been added ("error.html").
     */
    @Controller
    class CrashController {

        @GetMapping("/oups")
        public String triggerException() {
            throw new RuntimeException("Expected: controller used to showcase what "
                    + "happens when an exception is thrown");
        }

    }