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annotate graal/com.oracle.max.base/src/com/sun/max/ide/JavaProject.java @ 4142:bc8527f3071c

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Adjust code base to new level of warnings.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Sun, 18 Dec 2011 05:24:06 +0100
parents e233f5660da4
children fa6b78681c54
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1 /*
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2 * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.sun.max.ide;
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24
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25 import java.io.*;
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26 import java.util.*;
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27
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28 import com.sun.max.program.*;
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29 import com.sun.max.program.Classpath.Entry;
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30
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31 /**
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32 * Software project-dependent configuration derived from the
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33 * {@linkplain Classpath#fromSystem() system class path}.
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34 */
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35 public final class JavaProject {
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36
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37 /**
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38 * System property name specifying the Maxine workspace directory.
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39 */
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40 public static final String MAX_WORKSPACE_PROPERTY = "max.workspace";
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41
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42 /**
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43 * Determines if a given directory is Maxine workspace directory.
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44 *
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45 * @param dir a directory to test
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46 * @return {@code true} if {@code dir} is a directory containing a file named "projects.properties"
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47 */
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48 public static boolean isWorkspace(File dir) {
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49 return new File(dir, "projects.properties").exists();
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50 }
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51
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52 private JavaProject() {
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53 }
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54
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55 public static final String SOURCE_DIRECTORY_NAME = "src";
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56
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57 public static final String TEST_SOURCE_DIRECTORY_NAME = "test";
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58
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59 /**
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60 * Gets the paths on which all the class files referenced by a Java project can be found.
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61 *
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62 * @param projClass a class denoting a project (i.e. any class in the project)
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63 * @param includeDependencies if true, the returned path includes the location of the
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64 * class files produced by each of the projects that the current
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65 * project depends upon
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66 */
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67 public static Classpath getClassPath(Class projClass, boolean includeDependencies) {
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68 String classfile = projClass.getName().replace('.', '/') + ".class";
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69 ArrayList<Entry> classPathEntries = new ArrayList<>();
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70 Entry projEntry = null;
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71 for (Entry entry : Classpath.fromSystem().entries()) {
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72 if (entry.contains(classfile)) {
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73 projEntry = entry;
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74 classPathEntries.add(entry);
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75 break;
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76 }
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77 }
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78 if (classPathEntries.isEmpty()) {
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79 throw new JavaProjectNotFoundException("Could not find path to Java project classes");
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80 }
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81 if (includeDependencies) {
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82 for (Entry entry : Classpath.fromSystem().entries()) {
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83 if (entry != projEntry) {
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84 classPathEntries.add(entry);
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85 }
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86 }
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87 }
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88 return new Classpath(classPathEntries);
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89 }
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90
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91 static class WorkspaceFinder extends ClasspathTraversal {
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92
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93 File workspace;
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94 File project;
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95
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96
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97 boolean deriveWorkspace(File start) {
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98 File dir = start;
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99 File child = null;
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100 while (dir != null) {
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101 if (isWorkspace(dir)) {
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102 workspace = dir;
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103 project = child;
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104 return true;
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105 }
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106 child = dir;
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107 dir = dir.getParentFile();
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108 }
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109 return false;
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110 }
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111
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112 @Override
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113 protected boolean visitFile(File parent, String resource) {
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114 String classFile = JavaProject.class.getName().replace('.', File.separatorChar) + ".class";
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115 if (resource.equals(classFile)) {
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116 if (deriveWorkspace(parent)) {
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117 return false;
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118 }
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119 }
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120 return true;
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121 }
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122 @Override
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123 protected boolean visitArchiveEntry(java.util.zip.ZipFile archive, java.util.zip.ZipEntry resource) {
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124 String classFile = JavaProject.class.getName().replace('.', File.separatorChar) + ".class";
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125 if (resource.equals(classFile)) {
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126 File archiveFile = new File(archive.getName());
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127 if (deriveWorkspace(archiveFile)) {
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128 return false;
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129 }
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130 }
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131 return true;
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132 }
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133 }
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134
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135 /**
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136 * Gets Maxine workspace directory (i.e. the parent of all the {@linkplain #WORKSPACE_PROJECTS representative project directories}).
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137 * This can be specified explicitly with the {@value JavaProject#MAX_WORKSPACE_PROPERTY}
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138 * or is derived from the {@linkplain Classpath#fromSystem() system class path}.
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139 *
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140 * @return the Maxine workspace directory
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141 */
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142 public static File findWorkspaceDirectory() {
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143 final String prop = System.getProperty(JavaProject.MAX_WORKSPACE_PROPERTY);
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144 if (prop != null) {
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145 File dir = new File(prop);
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146 ProgramError.check(isWorkspace(dir), prop + " is not a Maxine workspace directory");
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147 return dir;
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148 }
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149 WorkspaceFinder finder = new WorkspaceFinder();
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150 finder.run(Classpath.fromSystem());
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151 ProgramError.check(finder.workspace != null, "failed to find the Maxine workspace directory");
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152 return finder.workspace;
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153 }
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154
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155 /**
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156 * Gets the paths on which all the Java source files for a Java project can be found.
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157 *
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158 * @param projClass a class denoting a project (i.e. any class in the project)
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159 * @param includeDependencies if true, the returned path includes the location of the
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160 * Java source files for each of the projects that the current
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161 * project depends upon
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162 */
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163 public static Classpath getSourcePath(Class projClass, boolean includeDependencies) {
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164 final Classpath classPath = getClassPath(projClass, includeDependencies);
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165 final List<String> sourcePath = new LinkedList<>();
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166 for (Entry entry : classPath.entries()) {
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167 WorkspaceFinder finder = new WorkspaceFinder();
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168 finder.deriveWorkspace(entry.file());
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169 final File projectDirectory = finder.project;
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170 if (projectDirectory != null) {
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171 final File srcDirectory = new File(projectDirectory, SOURCE_DIRECTORY_NAME);
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172 if (srcDirectory.exists() && srcDirectory.isDirectory()) {
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173 sourcePath.add(srcDirectory.getPath());
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174 }
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175
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176 final File testDirectory = new File(projectDirectory, TEST_SOURCE_DIRECTORY_NAME);
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177 if (testDirectory.exists() && testDirectory.isDirectory()) {
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178 sourcePath.add(testDirectory.getPath());
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179 }
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180 if (!includeDependencies) {
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181 break;
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182 }
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183 }
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184 }
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185 if (sourcePath.isEmpty()) {
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186 throw new JavaProjectNotFoundException("Could not find path to Java project sources");
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187 }
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188 return new Classpath(sourcePath.toArray(new String[sourcePath.size()]));
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189 }
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190
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191 /**
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192 * Find the primary source directory for a project.
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193 *
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194 * @param projClass a class denoting a project (i.e. any class in the project)
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195 */
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196 public static File findSourceDirectory(Class projClass) {
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197 return getSourcePath(projClass, false).entries().get(0).file();
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198 }
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199 }