Here you can find the source of startWithClass(Throwable throwable, Class> clazz)
public static boolean startWithClass(Throwable throwable, Class<?> clazz)
//package com.java2s; /**/*w w w.ja va 2s. c om*/ * Copyright 2001-2017 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 * * 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. */ import java.io.PrintWriter; import java.io.StringWriter; public class Main { public static boolean startWithClass(Throwable throwable, Class<?> clazz) { StackTraceElement[] elements = throwable.getStackTrace(); return elements[0].getClassName().equals(clazz.getName()); } public static String getStackTrace(Throwable throwable) { StringWriter stackTrace = new StringWriter(); throwable.printStackTrace(new PrintWriter(stackTrace)); return stackTrace.getBuffer().toString(); } }