test/jdk/java/util/jar/JarFile/SignedJarFileGetInputStream.java

8206863: A closed JarVerifier.VerifierStream should throw IOException
Reviewed-by: rasbold
Contributed-by: Tobias Thierer <tobiast@google.com>, Martin Buchholz <martinrb@google.com>

*** 20,30 ****
   * or visit www.oracle.com if you need additional information or have any
   * questions.
   */
  
  /* @test
!  * @bug 4845692
   * @summary JarFile.getInputStream should not throw when jar file is signed
   * @author Martin Buchholz
   */
  
  import java.io.*;
--- 20,30 ----
   * or visit www.oracle.com if you need additional information or have any
   * questions.
   */
  
  /* @test
!  * @bug 4845692 8206863
   * @summary JarFile.getInputStream should not throw when jar file is signed
   * @author Martin Buchholz
   */
  
  import java.io.*;
*** 40,46 ****
--- 40,68 ----
          for (Enumeration e = jar.entries(); e.hasMoreElements();) {
              JarEntry entry = (JarEntry) e.nextElement();
              InputStream is = jar.getInputStream(new ZipEntry(entry.getName()));
              is.close();
          }
+ 
+         // read(), available() on closed stream should throw IOException
+         InputStream is = jar.getInputStream(new ZipEntry("Test.class"));
+         is.close();
+         byte[] buffer = new byte[1];
+ 
+         try {
+             is.read();
+             throw new AssertionError("Should have thrown IOException");
+         } catch (IOException success) {}
+         try {
+             is.read(buffer);
+             throw new AssertionError("Should have thrown IOException");
+         } catch (IOException success) {}
+         try {
+             is.read(buffer, 0, buffer.length);
+             throw new AssertionError("Should have thrown IOException");
+         } catch (IOException success) {}
+         try {
+             is.available();
+             throw new AssertionError("Should have thrown IOException");
+         } catch (IOException success) {}
      }
  }