author | jjg |
Fri, 12 Aug 2016 17:45:31 -0700 | |
changeset 40316 | 20b50a99fe8d |
parent 36526 | langtools/test/tools/javac/options/modes/Tester.java@3b41f1c69604 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2014, 2016, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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import com.sun.tools.javac.api.JavacTool; |
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import com.sun.tools.javac.file.JavacFileManager; |
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import com.sun.tools.javac.util.Context; |
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import java.io.ByteArrayOutputStream; |
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import java.io.FileWriter; |
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import java.io.IOException; |
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import java.io.PrintStream; |
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import java.io.PrintWriter; |
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import java.io.StringWriter; |
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import java.io.UncheckedIOException; |
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import java.lang.annotation.Annotation; |
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import java.lang.annotation.Retention; |
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import java.lang.annotation.RetentionPolicy; |
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import java.lang.reflect.InvocationTargetException; |
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import java.lang.reflect.Method; |
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import java.nio.file.Files; |
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import java.nio.file.Path; |
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import java.nio.file.Paths; |
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import java.util.ArrayList; |
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import java.util.Arrays; |
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import java.util.EnumMap; |
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import java.util.Iterator; |
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import java.util.List; |
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import java.util.Map; |
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import java.util.stream.Collectors; |
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import javax.tools.JavaFileManager; |
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import javax.tools.JavaFileObject; |
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import javax.tools.StandardJavaFileManager; |
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import javax.tools.ToolProvider; |
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public class OptionModesTester { |
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|
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/** Marker annotation for test methods to be invoked by runTests. */ |
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@Retention(RetentionPolicy.RUNTIME) |
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@interface Test { } |
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/** |
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* Run all methods annotated with @Test, and throw an exception if any |
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* errors are reported.. |
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* Typically called on a tester object in main() |
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* @throws Exception if any errors occurred |
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*/ |
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void runTests() throws Exception { |
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for (Method m: getClass().getDeclaredMethods()) { |
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Annotation a = m.getAnnotation(Test.class); |
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if (a != null) { |
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try { |
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out.println("Running test " + m.getName()); |
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m.invoke(this); |
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} catch (InvocationTargetException e) { |
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Throwable cause = e.getCause(); |
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throw (cause instanceof Exception) ? ((Exception) cause) : e; |
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} |
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out.println(); |
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} |
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} |
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if (errors > 0) |
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throw new Exception(errors + " errors occurred"); |
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} |
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|
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TestResult runMain(String[] opts, String[] files) { |
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out.println("Main " + Arrays.toString(opts) + " " + Arrays.toString(files)); |
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return run(new TestResult(opts), (tr, c, pw) -> { |
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com.sun.tools.javac.main.Main compiler = |
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new com.sun.tools.javac.main.Main("javac", pw); |
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int rc = compiler.compile(join(opts, files), c).exitCode; |
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tr.setResult(rc); |
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}); |
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} |
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TestResult runCall(String[] opts, String[] files) { |
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out.println("Call " + Arrays.toString(opts) + " " + Arrays.toString(files)); |
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return run(new TestResult(opts), (tr, c, pw) -> { |
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boolean ok = JavacTool.create() |
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.getTask(pw, null, null, Arrays.asList(opts), null, getFiles(files), c) |
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.call(); |
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tr.setResult(ok); |
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}); |
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} |
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|
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TestResult runParse(String[] opts, String[] files) { |
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out.println("Parse " + Arrays.toString(opts) + " " + Arrays.toString(files)); |
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return run(new TestResult(opts), (tr, c, pw) -> { |
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JavacTool.create() |
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.getTask(pw, null, null, Arrays.asList(opts), null, getFiles(files), c) |
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.parse(); |
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tr.setResult(true); |
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}); |
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} |
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|
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TestResult runAnalyze(String[] opts, String[] files) { |
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out.println("Analyze " + Arrays.toString(opts) + " " + Arrays.toString(files)); |
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return run(new TestResult(opts), (tr, c, pw) -> { |
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JavacTool.create() |
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.getTask(pw, null, null, Arrays.asList(opts), null, getFiles(files), c) |
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.analyze(); |
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tr.setResult(true); |
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}); |
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} |
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|
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interface Runnable { |
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void run(TestResult tr, Context c, PrintWriter pw) throws IOException; |
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} |
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|
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TestResult run(TestResult tr, Runnable r) { |
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StringWriter sw = new StringWriter(); |
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PrintWriter pw = new PrintWriter(sw); |
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StreamOutput sysOut = new StreamOutput(System.out, System::setOut); |
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StreamOutput sysErr = new StreamOutput(System.err, System::setErr); |
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Context context = new Context(); |
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JavacFileManager.preRegister(context); |
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try { |
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r.run(tr, context, pw); |
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} catch (IllegalArgumentException | IllegalStateException | IOException e) { |
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tr.setThrown(e); |
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} finally { |
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try { |
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((JavacFileManager) context.get(JavaFileManager.class)).close(); |
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} catch (IOException e) { |
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throw new UncheckedIOException(e); |
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} |
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tr.setLogs(sw.toString(), sysOut.close(), sysErr.close()); |
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} |
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tr.setContext(context); |
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tr.show(); |
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return tr; |
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} |
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|
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enum Log { DIRECT, STDOUT, STDERR }; |
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|
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class TestResult { |
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final List<String> args; |
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Throwable thrown; |
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List<Throwable> suppressed = new ArrayList<>(); |
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Object rc; // Number or Boolean |
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Map<Log, String> logs; |
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Context context; |
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|
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TestResult(String... args) { |
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this.args = Arrays.asList(args); |
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} |
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|
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TestResult(List<String> args, Iterable<? extends JavaFileObject> files) { |
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this.args = new ArrayList<>(); |
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this.args.addAll(args); |
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for (JavaFileObject f: files) |
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this.args.add(f.getName()); |
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} |
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|
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void setResult(int rc) { |
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this.rc = rc; |
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} |
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|
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void setResult(boolean ok) { |
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this.rc = ok ? 0 : 1; |
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} |
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|
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void setSuppressed(Throwable thrown) { |
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this.suppressed.add(thrown); |
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} |
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|
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void setThrown(Throwable thrown) { |
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this.thrown = thrown; |
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} |
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|
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void setLogs(String direct, String stdOut, String stdErr) { |
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logs = new EnumMap<>(Log.class); |
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logs.put(Log.DIRECT, direct); |
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logs.put(Log.STDOUT, stdOut); |
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logs.put(Log.STDERR, stdErr); |
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} |
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|
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void setContext(Context context) { |
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this.context = context; |
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} |
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199 |
|
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200 |
final void show() { |
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String NL = System.getProperty("line.separator"); |
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boolean needSep = false; |
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203 |
if (rc != null) { |
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204 |
out.print("rc:" + rc); |
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needSep = true; |
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206 |
} |
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if (thrown != null) { |
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208 |
if (needSep) out.print("; "); |
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|
209 |
out.print("thrown:" + thrown); |
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|
210 |
needSep = true; |
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|
211 |
} |
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212 |
if (!suppressed.isEmpty()) { |
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213 |
if (needSep) out.print("; "); |
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out.print("suppressed:" + suppressed); |
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215 |
needSep = true; |
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|
216 |
} |
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|
217 |
if (needSep) |
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|
218 |
out.println(); |
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|
219 |
logs.forEach((k, v) -> { |
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|
220 |
if (!v.isEmpty()) { |
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|
221 |
out.println("javac/" + k + ":"); |
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|
222 |
if (v.endsWith(NL)) |
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|
223 |
out.print(v); |
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|
224 |
else |
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|
225 |
out.println(v); |
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|
226 |
} |
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|
227 |
|
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|
228 |
}); |
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|
229 |
} |
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|
230 |
|
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|
231 |
TestResult checkOK() { |
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|
232 |
if (thrown != null) { |
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|
233 |
error("unexpected exception thrown: " + thrown); |
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|
234 |
} else if (rc == null) { |
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|
235 |
error("no result set"); |
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|
236 |
} else if (rc != (Integer) 0 && rc != (Boolean) true) { |
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|
237 |
error("compilation failed unexpectedly; rc=" + rc); |
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|
238 |
} |
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|
239 |
return this; |
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|
240 |
} |
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|
241 |
|
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|
242 |
TestResult checkResult(int expect) { |
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|
243 |
if (thrown != null) { |
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|
244 |
error("unexpected exception thrown: " + thrown); |
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|
245 |
} else if (rc != (Integer) expect) { |
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|
246 |
error("unexpected result: " + rc +", expected:" + expect); |
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|
247 |
} |
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|
248 |
return this; |
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|
249 |
} |
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|
250 |
|
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|
251 |
TestResult checkResult(boolean expect) { |
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|
252 |
if (thrown != null) { |
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|
253 |
error("unexpected exception thrown: " + thrown); |
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|
254 |
} else if (rc != (Integer) (expect ? 0 : 1)) { |
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|
255 |
error("unexpected result: " + rc +", expected:" + expect); |
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|
256 |
} |
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|
257 |
return this; |
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|
258 |
} |
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|
259 |
|
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|
260 |
TestResult checkLog(String... expects) { |
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|
261 |
return checkLog(Log.DIRECT, expects); |
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|
262 |
} |
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|
263 |
|
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|
264 |
TestResult checkLog(Log l, String... expects) { |
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|
265 |
for (String e: expects) { |
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|
266 |
if (!logs.get(l).contains(e)) |
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|
267 |
error("expected string not found: " + e); |
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|
268 |
} |
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|
269 |
return this; |
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|
270 |
} |
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|
271 |
|
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272 |
TestResult checkIllegalArgumentException() { |
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|
273 |
return checkThrown(IllegalArgumentException.class); |
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|
274 |
} |
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275 |
|
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|
276 |
TestResult checkIllegalStateException() { |
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|
277 |
return checkThrown(IllegalStateException.class); |
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|
278 |
} |
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|
279 |
|
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|
280 |
TestResult checkThrown(Class<? extends Throwable> t) { |
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|
281 |
if (thrown == null) |
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|
282 |
error("expected exception not thrown: " + t); |
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|
283 |
else if (!t.isAssignableFrom(thrown.getClass())) |
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|
284 |
error("unexpected exception thrown: " + thrown + "; expected: " + t); |
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|
285 |
return this; |
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|
286 |
} |
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|
287 |
|
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TestResult checkClass(String name) { |
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Path p = getOutDir().resolve(name.replace(".", "/") + ".class"); |
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if (!Files.exists(p)) |
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error("expected class not found: " + name + " (" + p + ")"); |
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return this; |
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293 |
} |
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294 |
|
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295 |
Path getOutDir() { |
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296 |
Iterator<String> iter = args.iterator(); |
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297 |
while (iter.hasNext()) { |
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298 |
if (iter.next().equals("-d")) { |
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return Paths.get(iter.next()); |
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300 |
} |
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301 |
} |
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302 |
return null; |
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303 |
} |
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304 |
} |
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305 |
|
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306 |
/** |
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307 |
* Utility class to simplify the handling of temporarily setting a |
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* new stream for System.out or System.err. |
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309 |
*/ |
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310 |
private static class StreamOutput { |
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// functional interface to set a stream. |
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private interface Initializer { |
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void set(PrintStream s); |
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314 |
} |
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315 |
|
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316 |
private final ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
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private final PrintStream ps = new PrintStream(baos); |
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private final PrintStream prev; |
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private final Initializer init; |
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320 |
|
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321 |
StreamOutput(PrintStream s, Initializer init) { |
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prev = s; |
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323 |
init.set(ps); |
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this.init = init; |
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325 |
} |
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326 |
|
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327 |
String close() { |
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328 |
init.set(prev); |
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329 |
ps.close(); |
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330 |
return baos.toString(); |
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331 |
} |
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332 |
} |
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333 |
|
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334 |
List<JavaFileObject> getFiles(String... paths) { |
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335 |
List<JavaFileObject> files = new ArrayList<>(); |
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336 |
for (JavaFileObject f : fm.getJavaFileObjects(paths)) |
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files.add(f); |
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338 |
return files; |
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|
339 |
} |
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|
340 |
|
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341 |
String toString(List<JavaFileObject> files) { |
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return files.stream().map(f -> f.getName()).collect(Collectors.toList()).toString(); |
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343 |
} |
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344 |
|
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345 |
void mkdirs(String path) throws IOException { |
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346 |
Files.createDirectories(Paths.get(path)); |
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|
347 |
} |
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348 |
|
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349 |
void writeFile(String path, String body) throws IOException { |
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|
350 |
Path p = Paths.get(path); |
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|
351 |
if (p.getParent() != null) |
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|
352 |
Files.createDirectories(p.getParent()); |
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|
353 |
try (FileWriter w = new FileWriter(path)) { |
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|
354 |
w.write(body); |
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|
355 |
} |
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|
356 |
} |
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|
357 |
|
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358 |
String[] join(String[] a, String[] b) { |
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|
359 |
String[] result = new String[a.length + b.length]; |
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360 |
System.arraycopy(a, 0, result, 0, a.length); |
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|
361 |
System.arraycopy(b, 0, result, a.length, b.length); |
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|
362 |
return result; |
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|
363 |
} |
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|
364 |
|
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|
365 |
void error(String message) { |
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|
366 |
out.print(">>>>> "); |
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|
367 |
out.println(message); |
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|
368 |
errors++; |
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|
369 |
} |
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|
370 |
|
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|
371 |
StandardJavaFileManager fm = |
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|
372 |
ToolProvider.getSystemJavaCompiler().getStandardFileManager(null, null, null); |
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|
373 |
PrintStream out = System.err; |
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|
374 |
int errors; |
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|
375 |
|
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376 |
} |