langtools/test/tools/jdeps/APIDeps.java
author mchung
Thu, 17 Jul 2014 10:17:58 -0700
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parent 25442 755ff386d1ac
child 27579 d1a63c99cdd5
permissions -rw-r--r--
8050804: (jdeps) Recommend supported API to replace use of JDK internal API Reviewed-by: dfuchs
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/*
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 * Copyright (c) 2012, 2014, 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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/*
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 * @test
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 * @bug 8015912 8029216 8048063 8050804
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 * @summary Test -apionly and -jdkinternals options
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 * @build m.Bar m.Foo m.Gee b.B c.C c.I d.D e.E f.F g.G
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 * @run main APIDeps
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 */
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import java.io.File;
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import java.io.IOException;
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import java.io.PrintWriter;
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import java.io.StringWriter;
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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.*;
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import java.util.regex.*;
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public class APIDeps {
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    private static boolean symbolFileExist = initProfiles();
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    private static boolean initProfiles() {
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        // check if ct.sym exists; if not use the profiles.properties file
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        Path home = Paths.get(System.getProperty("java.home"));
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        if (home.endsWith("jre")) {
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            home = home.getParent();
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        }
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        Path ctsym = home.resolve("lib").resolve("ct.sym");
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        boolean symbolExists = ctsym.toFile().exists();
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        if (!symbolExists) {
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            Path testSrcProfiles =
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                Paths.get(System.getProperty("test.src", "."), "profiles.properties");
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            if (!testSrcProfiles.toFile().exists())
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                throw new Error(testSrcProfiles + " does not exist");
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            System.out.format("%s doesn't exist.%nUse %s to initialize profiles info%n",
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                ctsym, testSrcProfiles);
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            System.setProperty("jdeps.profiles", testSrcProfiles.toString());
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        }
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        return symbolExists;
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    }
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    public static void main(String... args) throws Exception {
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        int errors = 0;
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        errors += new APIDeps().run();
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        if (errors > 0)
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            throw new Exception(errors + " errors found");
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    }
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    int run() throws IOException {
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        File testDir = new File(System.getProperty("test.classes", "."));
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        String testDirBasename = testDir.toPath().getFileName().toString();
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        File mDir = new File(testDir, "m");
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        // all dependencies
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        test(new File(mDir, "Bar.class"),
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             new String[] {"java.lang.Object", "java.lang.String",
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                           "java.util.Set", "java.util.HashSet",
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                           "java.lang.management.ManagementFactory",
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                           "java.lang.management.RuntimeMXBean",
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                           "b.B", "c.C", "d.D", "f.F", "g.G"},
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             new String[] {"compact1", "compact3", testDirBasename},
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             new String[] {"-classpath", testDir.getPath(), "-verbose", "-P"});
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        test(new File(mDir, "Foo.class"),
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             new String[] {"c.I", "e.E", "f.F"},
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             new String[] {testDirBasename},
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             new String[] {"-classpath", testDir.getPath(), "-verbose:class", "-P"});
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        test(new File(mDir, "Foo.class"),
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             new String[] {"c.I", "e.E", "f.F", "m.Bar"},
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             new String[] {testDirBasename},
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             new String[] {"-classpath", testDir.getPath(), "-verbose:class", "-filter:none", "-P"});
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        test(new File(mDir, "Gee.class"),
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             new String[] {"g.G", "sun.misc.Lock", "com.sun.tools.classfile.ClassFile",
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                           "com.sun.management.ThreadMXBean", "com.sun.source.tree.BinaryTree"},
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             new String[] {testDirBasename, "JDK internal API", "compact3", ""},
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             new String[] {"-classpath", testDir.getPath(), "-verbose", "-P"});
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        // -jdkinternals
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        test(new File(mDir, "Gee.class"),
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             new String[] {"sun.misc.Lock", "com.sun.tools.classfile.ClassFile"},
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             new String[] {"JDK internal API"},
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             new String[] {"-jdkinternals"});
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        // -jdkinternals parses all classes on -classpath and the input arguments
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        test(new File(mDir, "Gee.class"),
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             new String[] {"com.sun.tools.jdeps.Main", "com.sun.tools.classfile.ClassFile",
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                           "sun.misc.Lock", "sun.misc.Unsafe"},
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             new String[] {"JDK internal API"},
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             new String[] {"-classpath", testDir.getPath(), "-jdkinternals"});
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        // parse only APIs
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        test(mDir,
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             new String[] {"java.lang.Object", "java.lang.String",
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                           "java.util.Set",
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                           "c.C", "d.D", "c.I", "e.E"},
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             new String[] {"compact1", testDirBasename},
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             new String[] {"-classpath", testDir.getPath(), "-verbose:class", "-P", "-apionly"});
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        test(mDir,
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             new String[] {"java.lang.Object", "java.lang.String",
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                           "java.util.Set",
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                           "c.C", "d.D", "c.I", "e.E", "m.Bar"},
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             new String[] {"compact1", testDirBasename, mDir.getName()},
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             new String[] {"-classpath", testDir.getPath(), "-verbose", "-P", "-apionly"});
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        return errors;
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    }
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    void test(File file, String[] expect, String[] profiles) {
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        test(file, expect, profiles, new String[0]);
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    }
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    void test(File file, String[] expect, String[] profiles, String[] options) {
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        List<String> args = new ArrayList<>(Arrays.asList(options));
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        if (file != null) {
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            args.add(file.getPath());
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        }
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        checkResult("api-dependencies", expect, profiles,
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                    jdeps(args.toArray(new String[0])));
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    }
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    Map<String,String> jdeps(String... args) {
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        StringWriter sw = new StringWriter();
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        PrintWriter pw = new PrintWriter(sw);
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        System.err.println("jdeps " + Arrays.toString(args));
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        int rc = com.sun.tools.jdeps.Main.run(args, pw);
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        pw.close();
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        String out = sw.toString();
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        if (!out.isEmpty())
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            System.err.println(out);
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        if (rc != 0)
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            throw new Error("jdeps failed: rc=" + rc);
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        return findDeps(out);
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    }
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    // Pattern used to parse lines
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    private static Pattern linePattern = Pattern.compile(".*\r?\n");
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    private static Pattern pattern = Pattern.compile("\\s+ -> (\\S+) +(.*)");
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    // Use the linePattern to break the given String into lines, applying
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    // the pattern to each line to see if we have a match
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    private static Map<String,String> findDeps(String out) {
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        Map<String,String> result = new HashMap<>();
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        Matcher lm = linePattern.matcher(out);  // Line matcher
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        Matcher pm = null;                      // Pattern matcher
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        int lines = 0;
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        while (lm.find()) {
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            lines++;
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            CharSequence cs = lm.group();       // The current line
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            if (pm == null)
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                pm = pattern.matcher(cs);
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            else
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                pm.reset(cs);
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            if (pm.find())
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                result.put(pm.group(1), pm.group(2).trim());
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            if (lm.end() == out.length())
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                break;
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        }
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        return result;
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    }
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    void checkResult(String label, String[] expect, Collection<String> found) {
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        List<String> list = Arrays.asList(expect);
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        if (!isEqual(list, found))
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            error("Unexpected " + label + " found: '" + found + "', expected: '" + list + "'");
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    }
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    void checkResult(String label, String[] expect, String[] profiles, Map<String,String> result) {
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        // check the dependencies
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        checkResult(label, expect, result.keySet());
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        // check profile information
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        Set<String> values = new TreeSet<>();
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        String internal = "JDK internal API";
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        for (String s: result.values()) {
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            if (s.startsWith(internal)){
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                values.add(internal);
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            } else {
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                values.add(s);
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            }
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        }
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        checkResult(label, profiles, values);
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    }
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    boolean isEqual(List<String> expected, Collection<String> found) {
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        if (expected.size() != found.size())
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            return false;
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        List<String> list = new ArrayList<>(found);
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        list.removeAll(expected);
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        return list.isEmpty();
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    }
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    void error(String msg) {
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        System.err.println("Error: " + msg);
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        errors++;
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    }
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    int errors;
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}