Here you can find the source of printStackTrace()
public static String printStackTrace()
//package com.java2s; /*-/* w w w .j a v a 2 s.c o m*/ * ============LICENSE_START======================================================= * SDC * ================================================================================ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved. * ================================================================================ * 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. * ============LICENSE_END========================================================= */ import java.io.IOException; import java.io.PrintWriter; import java.io.StringWriter; public class Main { /** * Print stack trace string. * * @return the string */ public static String printStackTrace() { StringWriter sw = new StringWriter(); StackTraceElement[] trace = Thread.currentThread().getStackTrace(); for (StackTraceElement traceElement : trace) { sw.write("\t " + traceElement); sw.write(System.lineSeparator()); } String str = sw.toString(); try { sw.close(); } catch (IOException e0) { System.err.println(e0); } return str; } /** * Gets stack trace. * * @param t0 the t 0 * @return the stack trace */ public static String getStackTrace(Throwable t0) { if (null == t0) { return ""; } StringWriter sw = new StringWriter(); t0.printStackTrace(new PrintWriter(sw)); return sw.toString(); } }