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11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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23 
24 /**
25  * @test
26  * @bug 6405538 6474350
27  * @summary Make sure jar files with large entries (more than max heap size)
28  *    can be signed
29  * @modules jdk.jartool/sun.security.tools.jarsigner
30  * @run main/othervm -Xmx16m LargeJarEntry
31  * @author Sean Mullan
32  */
33 
34 import java.io.File;
35 import java.io.FileOutputStream;
36 import java.util.jar.JarEntry;
37 import java.util.jar.JarOutputStream;
38 import java.util.zip.CRC32;
39 
40 public class LargeJarEntry {
41 
main(String[] args)42     public static void main(String[] args) throws Exception {
43 
44         String srcDir = System.getProperty("test.src", ".");
45         String keystore = srcDir + "/JarSigning.keystore";
46         String jarName = "largeJarEntry.jar";
47 
48         // Set java.io.tmpdir to the current working dir (see 6474350)
49         System.setProperty("java.io.tmpdir", System.getProperty("user.dir"));
50 
51         // first, create jar file with 8M uncompressed entry
52         // note, we set the max heap size to 8M in @run tag above
53         byte[] bytes = new byte[1000000];
54         CRC32 crc = new CRC32();
55         for (int i=0; i<8; i++) {
56             crc.update(bytes);
57         }
58         JarEntry je = new JarEntry("large");
59         je.setSize(8000000l);
60         je.setMethod(JarEntry.STORED);
61         je.setCrc(crc.getValue());
62         File file = new File(jarName);
63         FileOutputStream os = new FileOutputStream(file);
64         JarOutputStream jos = new JarOutputStream(os);
65         jos.setMethod(JarEntry.STORED);
66         jos.putNextEntry(je);
67         for (int i=0; i<8; i++) {
68             jos.write(bytes, 0, bytes.length);
69         }
70         jos.close();
71 
72         String[] jsArgs = { "-keystore", keystore, "-storepass", "bbbbbb",
73                 jarName, "b" };
74         // now, try to sign it
75         try {
76             sun.security.tools.jarsigner.Main.main(jsArgs);
77         } catch (OutOfMemoryError err) {
78             throw new Exception("Test failed with OutOfMemoryError", err);
79         } finally {
80             // remove jar file
81             file.delete();
82         }
83     }
84 }
85