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23 
24 /**
25  * @test
26  * @bug 6374379
27  * @library /test/lib
28  * @build jdk.test.lib.Platform
29  *        jdk.test.lib.util.FileUtils
30  * @run main ReadLongZipFileName
31  * @summary Verify that we can read zip file names > 255 chars long
32  */
33 
34 import java.io.*;
35 import java.util.jar.*;
36 import java.util.Stack;
37 import jdk.test.lib.util.FileUtils;
38 
39 public class ReadLongZipFileName {
40     private static String entryName = "testFile.txt";;
41 
realMain(String args[])42     public static void realMain(String args[]) {
43         String longDirName = "abcdefghijklmnopqrstuvwx"; // 24 chars.
44         String jarFileName = "areallylargejarfilename.jar";    // 27 chars.
45         File file = null;
46         File myJarFile = null;
47         int currentFileLength = 0;
48         int minRequiredLength = 600; // long enough to definitely fail.
49         Stack<File> directories = new Stack<File>();
50 
51         String filename = "." + File.separator;
52         try {
53             // Create a directory structure long enough that the filename will
54             // put us over the minRequiredLength.
55             do {
56                 filename = filename + longDirName + File.separator;
57                 file = new File(filename);
58                 file.mkdir();
59                 currentFileLength = file.getCanonicalPath().length();
60                 directories.push(file);
61             } while (currentFileLength < (minRequiredLength - jarFileName.length()));
62 
63             // Create a new Jar file: use jar instead of zip to make sure long
64             // names work for both zip and jar subclass.
65             filename = filename + jarFileName;
66             JarOutputStream out = new JarOutputStream(
67                 new BufferedOutputStream(
68                     new FileOutputStream(filename.toString())));
69             out.putNextEntry(new JarEntry(entryName));
70             out.write(1);
71             out.close();
72             myJarFile = new File(filename.toString());
73             currentFileLength = myJarFile.getCanonicalPath().length();
74             if (!myJarFile.exists()) {
75                 fail("Jar file does not exist.");
76             }
77         } catch (IOException e) {
78             unexpected(e, "Problem creating the Jar file.");
79         }
80 
81         try {
82             JarFile readJarFile = new JarFile(myJarFile);
83             JarEntry je = readJarFile.getJarEntry(entryName);
84             check(je != null);
85             DataInputStream dis = new DataInputStream(
86                 readJarFile.getInputStream(je));
87             byte val = dis.readByte();
88             check(val == 1);
89             try {
90                 dis.readByte();
91                 fail("Read past expected EOF");
92             } catch (IOException e) {
93                 pass();
94             }
95             readJarFile.close();
96             pass("Opened Jar file for reading with a name " + currentFileLength
97                  + " characters long");
98         } catch (IOException e) {
99             unexpected(e, "Test failed - problem reading the Jar file back in.");
100         }
101 
102         if (myJarFile != null) {
103             check(myJarFile.delete());
104         }
105 
106         while (! directories.empty()) {
107             File f = directories.pop();
108             try {
109                 FileUtils.deleteFileWithRetry(f.toPath());
110             } catch (IOException e) {
111                 unexpected(e, "Fail to clean up directory, " + f);
112                 break;
113             }
114         }
115     }
116 
117     //--------------------- Infrastructure ---------------------------
118     static volatile int passed = 0, failed = 0;
pass()119     static void pass() {passed++;}
pass(String msg)120     static void pass(String msg) {System.out.println(msg); passed++;}
fail()121     static void fail() {failed++; Thread.dumpStack();}
fail(String msg)122     static void fail(String msg) {System.out.println(msg); fail();}
unexpected(Throwable t)123     static void unexpected(Throwable t) {failed++; t.printStackTrace();}
unexpected(Throwable t, String msg)124     static void unexpected(Throwable t, String msg) {
125         System.out.println(msg); failed++; t.printStackTrace();}
check(boolean cond)126     static void check(boolean cond) {if (cond) pass(); else fail();}
equal(Object x, Object y)127     static void equal(Object x, Object y) {
128         if (x == null ? y == null : x.equals(y)) pass();
129         else fail(x + " not equal to " + y);}
main(String[] args)130     public static void main(String[] args) throws Throwable {
131         try {realMain(args);} catch (Throwable t) {unexpected(t);}
132         System.out.println("\nPassed = " + passed + " failed = " + failed);
133         if (failed > 0) throw new AssertionError("Some tests failed");}
134 }
135