Source Code Cross Referenced for BytecodeTest.java in  » IDE-Netbeans » library » org » netbeans » perftest » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » IDE Netbeans » library » org.netbeans.perftest 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003:         *
004:         * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005:         *
006:         * The contents of this file are subject to the terms of either the GNU
007:         * General Public License Version 2 only ("GPL") or the Common
008:         * Development and Distribution License("CDDL") (collectively, the
009:         * "License"). You may not use this file except in compliance with the
010:         * License. You can obtain a copy of the License at
011:         * http://www.netbeans.org/cddl-gplv2.html
012:         * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013:         * specific language governing permissions and limitations under the
014:         * License.  When distributing the software, include this License Header
015:         * Notice in each file and include the License file at
016:         * nbbuild/licenses/CDDL-GPL-2-CP.  Sun designates this
017:         * particular file as subject to the "Classpath" exception as provided
018:         * by Sun in the GPL Version 2 section of the License file that
019:         * accompanied this code. If applicable, add the following below the
020:         * License Header, with the fields enclosed by brackets [] replaced by
021:         * your own identifying information:
022:         * "Portions Copyrighted [year] [name of copyright owner]"
023:         *
024:         * Contributor(s):
025:         *
026:         * The Original Software is NetBeans. The Initial Developer of the Original
027:         * Software is Sun Microsystems, Inc. Portions Copyright 2006 Sun
028:         * Microsystems, Inc. All Rights Reserved.
029:         *
030:         * If you wish your version of this file to be governed by only the CDDL
031:         * or only the GPL Version 2, indicate your decision by adding
032:         * "[Contributor] elects to include this software in this distribution
033:         * under the [CDDL or GPL Version 2] license." If you do not indicate a
034:         * single choice of license, a recipient has the option to distribute
035:         * your version of this file under either the CDDL, the GPL Version 2 or
036:         * to extend the choice of license to its licensees as provided above.
037:         * However, if you add GPL Version 2 code and therefore, elected the GPL
038:         * Version 2 license, then the option applies only if the new code is
039:         * made subject to such option by the copyright holder.
040:         */
041:
042:        package org.netbeans.perftest;
043:
044:        import java.io.File;
045:        import java.util.Enumeration;
046:        import java.util.HashSet;
047:        import java.util.Set;
048:        import java.util.jar.JarEntry;
049:        import java.util.jar.JarFile;
050:        import junit.framework.TestCase;
051:        import junit.framework.*;
052:        import com.sun.org.apache.bcel.internal.classfile.ClassParser;
053:        import com.sun.org.apache.bcel.internal.classfile.DescendingVisitor;
054:        import com.sun.org.apache.bcel.internal.classfile.EmptyVisitor;
055:        import com.sun.org.apache.bcel.internal.classfile.Field;
056:        import com.sun.org.apache.bcel.internal.classfile.JavaClass;
057:        import com.sun.org.apache.bcel.internal.classfile.LineNumberTable;
058:        import com.sun.org.apache.bcel.internal.classfile.LocalVariableTable;
059:        import com.sun.org.apache.bcel.internal.classfile.Method;
060:        import com.sun.org.apache.bcel.internal.generic.Type;
061:        import java.lang.reflect.Constructor;
062:        import java.util.ArrayList;
063:        import java.util.LinkedList;
064:        import java.util.List;
065:        import java.util.Map;
066:        import java.util.SortedMap;
067:        import java.util.TreeMap;
068:        import java.util.TreeSet;
069:        import java.util.logging.Level;
070:        import java.util.logging.Logger;
071:        import org.netbeans.*;
072:        import org.netbeans.junit.NbTestCase;
073:        import org.netbeans.junit.NbTestSuite;
074:        import org.openide.loaders.DataLoader;
075:        import org.openide.loaders.DataLoaderPool;
076:
077:        /**
078:         *
079:         * @author radim
080:         */
081:        public class BytecodeTest extends NbTestCase {
082:
083:            private Logger LOG;
084:
085:            public BytecodeTest(String testName) {
086:                super (testName);
087:            }
088:
089:            public static Test suite() {
090:                TestSuite suite = new NbTestSuite(BytecodeTest.class);
091:
092:                return suite;
093:            }
094:
095:            @Override
096:            protected Level logLevel() {
097:                return Level.INFO;
098:            }
099:
100:            protected void setUp() throws Exception {
101:                LOG = Logger.getLogger("TEST-" + getName());
102:
103:                super .setUp();
104:            }
105:
106:            // TODO test for ModuleInstall subclasses - they should override at least one important method
107:
108:            /** Verification that classfiles built in production build do not contain 
109:             * variable information to reduce their size and improve performance.
110:             * Line table and source info are OK.
111:             * Likely to fail for custom CVS unless they used -Dbuild.compiler.debuglevel=source,lines
112:             */
113:            public void testBytecode() throws Exception {
114:                JavaClass clz = new ClassParser(Main.class
115:                        .getResourceAsStream("Main.class"), "Main.class")
116:                        .parse();
117:                assertNotNull("classfile of Main parsed", clz);
118:
119:                Set<Violation> violations = new HashSet<Violation>();
120:                MyVisitor v = new MyVisitor();
121:                new DescendingVisitor(clz, v).visit();
122:                if (v.foundLocalVarTable()) {
123:                    violations.add(new Violation(Main.class.getName(),
124:                            "startup classpath", "local var table found"));
125:                }
126:                for (File f : org.netbeans.core.startup.Main.getModuleSystem()
127:                        .getModuleJars()) {
128:                    if (!f.getName().endsWith(".jar"))
129:                        continue;
130:
131:                    // list of 3rd party libs
132:                    // perhaps we can strip this debug info from these
133:                    if ("commons-logging-1.0.4.jar".equals(f.getName())
134:                            || "servlet-2.2.jar".equals(f.getName())
135:                            || "servlet2.5-jsp2.1-api.jar".equals(f.getName())
136:                            || "jaxws-tools.jar".equals(f.getName())
137:                            || "jaxws-rt.jar".equals(f.getName())
138:                            || "jaxb-impl.jar".equals(f.getName())
139:                            || "jaxb-xjc.jar".equals(f.getName())
140:                            || "jaxb-api.jar".equals(f.getName())
141:                            || "saaj-impl.jar".equals(f.getName())
142:                            || "activation.jar".equals(f.getName())
143:                            || "streambuffer.jar".equals(f.getName())
144:                            || "sjsxp.jar".equals(f.getName())
145:                            || "resolver-1_1_nb.jar".equals(f.getName())
146:                            || "webserver.jar".equals(f.getName())
147:                            || "swing-layout-1.0.2.jar".equals(f.getName())
148:                            || "beansbinding-0.5.jar".equals(f.getName())
149:                            || f.getName().matches("appframework-.*\\.jar")
150:                            //            ||  "jmi.jar".equals(f.getName())
151:                            || "persistence-tool-support.jar".equals(f
152:                                    .getName())
153:                            || "ini4j.jar".equals(f.getName())
154:                            || "svnClientAdapter.jar".equals(f.getName())
155:                            || "lucene-core-2.1.0.jar".equals(f.getName())
156:                            || "javac-impl-nb-7.0-b07.jar".equals(f.getName())
157:                            || "java-parser.jar".equals(f.getName()))
158:                        continue;
159:
160:                    // #97282 - profiler
161:                    if (f.getName().contains("profiler")) {
162:                        continue;
163:                    }
164:
165:                    JarFile jar = new JarFile(f);
166:                    Enumeration<JarEntry> entries = jar.entries();
167:                    JarEntry entry;
168:                    while (entries.hasMoreElements()) {
169:                        entry = entries.nextElement();
170:                        if (entry.getName().endsWith(".class")) {
171:                            LOG.log(Level.FINE, "testing entry {0}", entry);
172:                            clz = new ClassParser(jar.getInputStream(entry),
173:                                    entry.getName()).parse();
174:                            assertNotNull("classfile of " + entry.toString()
175:                                    + " parsed");
176:
177:                            v = new MyVisitor();
178:                            new DescendingVisitor(clz, v).visit();
179:                            if (v.foundLocalVarTable()) {
180:                                violations
181:                                        .add(new Violation(entry.toString(),
182:                                                jar.getName(),
183:                                                "local var table found"));
184:                            }
185:
186:                            break;
187:                        }
188:                    }
189:                }
190:                if (!violations.isEmpty()) {
191:                    StringBuilder msg = new StringBuilder();
192:                    msg
193:                            .append("Some classes in IDE contain variable table information:\n");
194:                    for (Violation viol : violations) {
195:                        msg.append(viol.entry).append(" in ").append(
196:                                viol.jarFile).append('\n');
197:                    }
198:                    fail(msg.toString());
199:                }
200:                //                    assertTrue (entry.toString()+" should have line number table", v.foundLineNumberTable());
201:            }
202:
203:            private static class Violation implements  Comparable<Violation> {
204:                String entry;
205:                String jarFile;
206:                String comment;
207:
208:                Violation(String entry, String jarFile, String comment) {
209:                    this .entry = entry;
210:                    this .jarFile = jarFile;
211:                    this .comment = comment;
212:                }
213:
214:                public int compareTo(Violation v2) {
215:                    String second = v2.entry + v2.jarFile;
216:                    return (entry + jarFile).compareTo(second);
217:                }
218:            }
219:
220:            private static class MyVisitor extends EmptyVisitor {
221:                private boolean localVarTable;
222:                private boolean lineNumberTable;
223:
224:                public void visitLocalVariableTable(LocalVariableTable obj) {
225:                    localVarTable = true;
226:                }
227:
228:                public boolean foundLocalVarTable() {
229:                    return localVarTable;
230:                }
231:
232:                public void visitLineNumberTable(LineNumberTable obj) {
233:                    lineNumberTable = true;
234:                }
235:
236:                public boolean foundLineNumberTable() {
237:                    return lineNumberTable;
238:                }
239:
240:            }
241:
242:            private static class BIVisitor extends EmptyVisitor {
243:
244:                private static Type pdType = Type
245:                        .getType("[Ljava/beans/PropertyDescriptor;");
246:                private static Type bdType = Type
247:                        .getType("Ljava/beans/BeanDescriptor;");
248:                private static Type mdType = Type
249:                        .getType("[Ljava/beans/MethodDescriptor;");
250:                private static Type edType = Type
251:                        .getType("[Ljava/beans/EventSetDescriptor;");
252:                private boolean hasDescFields;
253:                private boolean hasStaticMethods;
254:
255:                public void visitField(Field obj) {
256:                    if (obj.isStatic()) {
257:                        //                System.out.println("signature "+obj.getSignature());
258:                        Type name = Type.getReturnType(obj.getSignature());
259:                        if (pdType.equals(name) || bdType.equals(name)
260:                                || mdType.equals(name) || edType.equals(name)) {
261:                            hasDescFields = true;
262:                        }
263:                    }
264:                }
265:
266:                public void visitMethod(Method obj) {
267:                    if (obj.isStatic()) { // && obj.getArgumentTypes().length == 0) {
268:                        String name = obj.getName();
269:                        if ("getBdescriptor".equals(name)
270:                                || "getMdescriptor".equals(name)
271:                                || "getEdescriptor".equals(name)
272:                                || "getPdescriptor".equals(name)) {
273:                            hasStaticMethods = true;
274:                        }
275:                    }
276:                }
277:
278:                public boolean foundDescFields() {
279:                    return hasDescFields;
280:                }
281:
282:                public boolean foundStaticMethods() {
283:                    return hasStaticMethods;
284:                }
285:            }
286:
287:            private static class StaticsVisitor extends EmptyVisitor {
288:
289:                private static Type imageType = Type
290:                        .getType("Ljava/awt/Image;");
291:                private static Type image1Type = Type
292:                        .getType("Ljavax/swing/ImageIcon;");
293:                private static Type image2Type = Type
294:                        .getType("Ljavax/swing/Icon;");
295:                private static Type bType = Type
296:                        .getType("Ljava/util/ResourceBundle;");
297:                private static Type b2Type = Type
298:                        .getType("Lorg/openide/util/NbBundle;");
299:
300:                private boolean hasImageFields;
301:                private boolean hasPropFields;
302:
303:                @Override
304:                public void visitField(Field obj) {
305:                    if (obj.isStatic()) {
306:                        //                System.out.println("signature "+obj.getSignature());
307:                        Type name = Type.getReturnType(obj.getSignature());
308:                        if (imageType.equals(name) || image1Type.equals(name)
309:                                || image2Type.equals(name)) {
310:                            hasImageFields = true;
311:                        }
312:                        if (bType.equals(name) || b2Type.equals(name)) {
313:                            hasPropFields = true;
314:                        }
315:                    }
316:                }
317:
318:                public boolean foundStaticFields() {
319:                    return hasImageFields | hasPropFields;
320:                }
321:
322:                public String fieldTypes() {
323:                    if (hasImageFields) {
324:                        return hasPropFields ? "images and bundle resources"
325:                                : "images";
326:                    } else {
327:                        return hasPropFields ? "bundle resources" : "none";
328:                    }
329:                }
330:            }
331:
332:            /** Scan of BeanInfo classes to check if they held descriptors statically
333:             */
334:            public void testBeanInfos() throws Exception {
335:                JavaClass clz;
336:
337:                Set<Violation> violations = new TreeSet<Violation>();
338:                for (File f : org.netbeans.core.startup.Main.getModuleSystem()
339:                        .getModuleJars()) {
340:                    if (!f.getName().endsWith(".jar"))
341:                        continue;
342:
343:                    JarFile jar = new JarFile(f);
344:                    Enumeration<JarEntry> entries = jar.entries();
345:                    JarEntry entry;
346:                    while (entries.hasMoreElements()) {
347:                        entry = entries.nextElement();
348:                        if (entry.getName().endsWith("BeanInfo.class")) {
349:                            LOG.log(Level.FINE, "testing entry {0}", entry);
350:                            if (entry.getName().endsWith(
351:                                    "JXPathBasicBeanInfo.class")) {
352:                                continue;
353:                            }
354:
355:                            clz = new ClassParser(jar.getInputStream(entry),
356:                                    entry.getName()).parse();
357:                            assertNotNull("classfile of " + entry.toString()
358:                                    + " parsed");
359:
360:                            BIVisitor v = new BIVisitor();
361:                            new DescendingVisitor(clz, v).visit();
362:                            if (v.foundDescFields()) {
363:                                violations
364:                                        .add(new Violation(entry.toString(),
365:                                                jar.getName(),
366:                                                " found fields that should be avoided"));
367:                            }
368:                            if (v.foundStaticMethods()) {
369:                                violations
370:                                        .add(new Violation(entry.toString(),
371:                                                jar.getName(),
372:                                                " found methods that should be avoided"));
373:                            }
374:                        }
375:                    }
376:                }
377:                if (!violations.isEmpty()) {
378:                    StringBuilder msg = new StringBuilder();
379:                    msg
380:                            .append("Some BeanInfo classes should be more optimized:\n");
381:                    for (Violation v : violations) {
382:                        msg.append(v.entry).append(" in ").append(v.jarFile)
383:                                .append(v.comment).append('\n');
384:                    }
385:                    fail(msg.toString());
386:                }
387:            }
388:
389:            /** Scan of all classes to check if they held statically things like Images or ResourceBundles
390:             */
391:            public void testStaticRefs() throws Exception {
392:                JavaClass clz;
393:
394:                // TODO need to exclude some usages that are justified
395:
396:                Set<Violation> violations = new TreeSet<Violation>();
397:                for (File f : org.netbeans.core.startup.Main.getModuleSystem()
398:                        .getModuleJars()) {
399:                    if (!f.getName().endsWith(".jar"))
400:                        continue;
401:
402:                    if (f.getName().endsWith("servlet-2.2.jar")
403:                            || f.getName()
404:                                    .endsWith("servlet2.5-jsp2.1-api.jar")
405:                            || f.getName().endsWith("javaee.jar")
406:                            || f.getName()
407:                                    .endsWith("javac-impl-nb-7.0-b07.jar")
408:                            || f.getName().endsWith("jaxb-impl.jar")
409:                            || f.getName().endsWith("jaxb-xjc.jar")
410:                            || f.getName().endsWith("saaj-impl.jar")
411:                            || f.getName().endsWith("jh-2.0_05.jar")
412:                            || f.getName().endsWith("xerces-2.8.0.jar")
413:                            || f.getName().endsWith("svnClientAdapter.jar")
414:                            || f.getName().endsWith("beansbinding-0.5.jar")
415:                            || f.getName().endsWith(
416:                                    "persistence-tool-support.jar") // issue #96439
417:                            || f.getName().endsWith(
418:                                    "org-netbeans-modules-websvc-core.jar") // issue #96453
419:                            || f.getName().endsWith(
420:                                    "org-netbeans-modules-websvc-jaxrpc.jar")
421:                            || f.getName().endsWith(
422:                                    "org-netbeans-modules-websvc-design.jar") // issue #99971
423:                            || f.getName().endsWith(
424:                                    "org-netbeans-modules-j2ee-sun-appsrv.jar") // issue #96439
425:                            || f
426:                                    .getName()
427:                                    .endsWith(
428:                                            "org-netbeans-modules-j2ee-sun-appsrv81.jar")
429:                            || f
430:                                    .getName()
431:                                    .endsWith(
432:                                            "org-netbeans-modules-j2ee-ejbjarproject.jar") // issue #96423
433:                            || f.getName().endsWith(
434:                                    "org-netbeans-modules-j2ee-earproject.jar")
435:                            || f
436:                                    .getName()
437:                                    .endsWith(
438:                                            "org-netbeans-modules-j2ee-clientproject.jar")
439:                            || f.getName().endsWith(
440:                                    "org-netbeans-modules-j2ee-blueprints.jar")
441:                            || f.getName().endsWith(
442:                                    "org-netbeans-modules-j2ee-archive.jar")
443:                            || f.getName().endsWith(
444:                                    "org-netbeans-modules-j2ee-ddloaders.jar")
445:                            || f.getName().endsWith(
446:                                    "org-netbeans-modules-j2ee-dd.jar")
447:                            || f
448:                                    .getName()
449:                                    .endsWith(
450:                                            "org-netbeans-modules-j2ee-api-ejbmodule.jar")
451:                            || f.getName().endsWith(
452:                                    "org-netbeans-modules-web-project.jar") // issue #96427
453:                            || f.getName().endsWith(
454:                                    "org-netbeans-modules-web-core-syntax.jar")
455:                            || f.getName().endsWith(
456:                                    "org-netbeans-modules-java-source.jar") // issue #96461
457:                            || f.getName().endsWith(
458:                                    "org-netbeans-modules-java-project.jar")
459:                            || f
460:                                    .getName()
461:                                    .endsWith(
462:                                            "org-netbeans-modules-java-j2seproject.jar")
463:                            || f.getName().endsWith(
464:                                    "org-netbeans-modules-java-platform.jar")
465:                            || f.getName().endsWith(
466:                                    "org-netbeans-modules-j2ee-sun-ddui.jar")) { // issue #96422
467:                        continue;
468:                    }
469:                    // #97283 - profiler
470:                    if (f.getName().contains("jfluid")
471:                            || f.getName().contains("profiler")) {
472:                        continue;
473:                    }
474:                    JarFile jar = new JarFile(f);
475:                    Enumeration<JarEntry> entries = jar.entries();
476:                    JarEntry entry;
477:                    while (entries.hasMoreElements()) {
478:                        entry = entries.nextElement();
479:                        if (entry.getName().endsWith(".class")) {
480:                            if ("org/openide/explorer/view/VisualizerNode.class"
481:                                    .equals(entry.getName()) // default node icon si OK
482:                                    || "org/openide/awt/JInlineMenu.class"
483:                                            .equals(entry.getName()) // empty icon si OK
484:                                    || "org/openide/awt/DynaMenuModel.class"
485:                                            .equals(entry.getName()) // empty icon si OK
486:                                    || "org/netbeans/swing/tabcontrol/TabData.class"
487:                                            .equals(entry.getName()) // empty icon si OK
488:                                    || "org/openide/explorer/propertysheet/PropertySheet.class"
489:                                            .equals(entry.getName())) { // deprecated kept for compat
490:                                continue;
491:                            } else if (entry
492:                                    .getName()
493:                                    .startsWith(
494:                                            "org/netbeans/modules/editor/java/JavaCompletionItem") // #96442
495:                            //                            || entry.getName().startsWith("org/netbeans/api/visual") // 99964
496:                            ) {
497:                                continue;
498:                            }
499:
500:                            LOG.log(Level.FINE, "testing entry {0}", entry);
501:                            clz = new ClassParser(jar.getInputStream(entry),
502:                                    entry.getName()).parse();
503:                            assertNotNull("classfile of " + entry.toString()
504:                                    + " parsed");
505:
506:                            StaticsVisitor v = new StaticsVisitor();
507:                            new DescendingVisitor(clz, v).visit();
508:                            if (v.foundStaticFields()) {
509:                                violations.add(new Violation(entry.toString(),
510:                                        jar.getName(),
511:                                        " has static fields of type "
512:                                                + v.fieldTypes()));
513:                            }
514:                        }
515:                    }
516:                }
517:                if (!violations.isEmpty()) {
518:                    StringBuilder msg = new StringBuilder();
519:                    msg.append("Some classes retain memory permanently (")
520:                            .append(violations.size()).append("):\n");
521:                    for (Violation v : violations) {
522:                        msg.append(v.entry).append(v.comment).append(" (")
523:                                .append(v.jarFile).append(")\n");
524:                    }
525:                    fail(msg.toString());
526:                }
527:            }
528:
529:            /** Check that we are not loading classes hungrily. 
530:             * DataLoader(String) is prefered to avoid loading of DataObject classes.
531:             */
532:            public void testDataLoaders() throws Exception {
533:                Enumeration<DataLoader> loaders = DataLoaderPool.getDefault()
534:                        .allLoaders();
535:                while (loaders.hasMoreElements()) {
536:                    DataLoader ldr = loaders.nextElement();
537:                    if ("org.netbeans.modules.cnd.loaders.CCDataLoader"
538:                            .equals(ldr.getClass().getName())) { // #97612
539:                        continue;
540:                    }
541:
542:                    try {
543:                        // XXX not enough better is to test that all ctors only call super(String)
544:                        Constructor ctor = ldr.getClass()
545:                                .getDeclaredConstructor(Class.class);
546:                        assertNull(
547:                                ldr.getClass().getName()
548:                                        + ".<init>(String) is better are usualy enough",
549:                                ctor);
550:                    } catch (NoSuchMethodException ex) {
551:                        // expected path - OK
552:                    }
553:                }
554:            }
555:
556:            public void testDuplicateClasses() throws Exception {
557:                SortedMap<String, List<String>> res2jars = new TreeMap<String, List<String>>();
558:
559:                Set<Violation> violations = new TreeSet<Violation>();
560:                for (File f : org.netbeans.core.startup.Main.getModuleSystem()
561:                        .getModuleJars()) {
562:                    if (!f.getName().endsWith(".jar"))
563:                        continue;
564:
565:                    if (f.getName().endsWith("servlet-2.2.jar")
566:                            || f.getName()
567:                                    .endsWith("servlet2.5-jsp2.1-api.jar")
568:                            || f.getName().endsWith("cdc-pp-awt-layout.jar")) // #105314
569:                        continue;
570:
571:                    if (f.getName().endsWith("tsalljlayoutclient601dev.jar") // #105628 
572:                            || f.getName().endsWith(
573:                                    "tsalljlayoutserver601dev.jar") // #105628 
574:                            || f.getName().endsWith("lucene-core-2.1.0.jar") // #105329 
575:                            || f.getName().endsWith("batik-mod.jar") // #100892
576:                            || f.getName().endsWith("batik-all.jar") // #100892
577:                            || f.getName().endsWith("JGo5.1.jar") // #105319 
578:                            || f.getName().endsWith("JGoLayout5.1.jar") // #105319 
579:                            || f.getName().endsWith("JGoInstruments5.1.jar")) // #105319 
580:                        continue;
581:
582:                    JarFile jar = new JarFile(f);
583:                    Enumeration<JarEntry> entries = jar.entries();
584:                    JarEntry entry;
585:                    while (entries.hasMoreElements()) {
586:                        entry = entries.nextElement();
587:                        String name = entry.getName();
588:                        if (!name.endsWith(".class"))
589:                            continue;
590:
591:                        LOG.log(Level.FINE, "testing entry {0}", entry);
592:                        List<String> jars = res2jars.get(name);
593:                        if (jars == null) {
594:                            jars = new LinkedList<String>();
595:                            res2jars.put(name, jars);
596:                        }
597:                        if (!jars.contains(jar.getName())) { // avoid errors for multiply loaded JARs
598:                            jars.add(jar.getName());
599:                        }
600:                    }
601:                }
602:                boolean fail = false;
603:                StringBuilder msg = new StringBuilder(
604:                        "There are some duplicated classes in IDE\n");
605:                for (Map.Entry<String, List<String>> entry : res2jars
606:                        .entrySet()) {
607:                    if (entry.getValue().size() > 1) {
608:                        fail = true;
609:                        msg.append(entry.getKey()).append(" is contained in ")
610:                                .append(entry.getValue().size()).append(
611:                                        " files: ").append(
612:                                        entry.getValue().toString()).append(
613:                                        '\n');
614:                    }
615:                }
616:                if (fail) {
617:                    fail(msg.toString());
618:                }
619:            }
620:        }
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