Here you can find the source of split(String signature, boolean skipInitialAngleBracket)
public static final List<String> split(String signature, boolean skipInitialAngleBracket)
//package com.java2s; /*/*w w w .j a v a 2 s. c om*/ * FindBugs - Find Bugs in Java programs * Copyright (C) 2006, University of Maryland * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ import java.util.ArrayList; import java.util.List; public class Main { public static final List<String> split(String signature, boolean skipInitialAngleBracket) { List<String> result = new ArrayList<>(); if (signature.charAt(0) != '<') { skipInitialAngleBracket = false; } int depth = 0; int start = 0; for (int pos = start; pos < signature.length(); pos++) { switch (signature.charAt(pos)) { case '<': depth++; break; case '>': depth--; if (depth == 0 && skipInitialAngleBracket) { skipInitialAngleBracket = false; start = pos + 1; } break; case ';': if (depth > 0) { break; } String substring = signature.substring(start, pos + 1); result.add(substring); start = pos + 1; break; default: break; } } if (depth != 0) { throw new IllegalArgumentException("Unbalanced signature: " + signature); } return result; } }