test/java/util/jar/JarFile/ScanSignedJar.java

rev 3516 : 7021582: convert jar/zip code and tests to use try-with-resources
Reviewed-by: XXX

*** 35,63 ****
  import java.util.jar.*;
  
  public class ScanSignedJar {
  
      public static void main(String[] args) throws Exception {
-         JarFile file = new JarFile(new File(System.getProperty("test.src","."),
-             "bogus-signerinfo-attr.jar"));
-         byte[] buffer = new byte[8192];
          boolean isSigned = false;
  
          for (Enumeration entries = file.entries(); entries.hasMoreElements();) {
              JarEntry entry = (JarEntry) entries.nextElement();
!             InputStream jis = file.getInputStream(entry);
              while (jis.read(buffer, 0, buffer.length) != -1) {
                  // read the jar entry
              }
!             jis.close();
              if (entry.getCertificates() != null) {
                  isSigned = true;
              }
              System.out.println((isSigned ? "[signed] " : "\t ") +
                  entry.getName());
          }
!         file.close();
  
          if (isSigned) {
              System.out.println("\nJAR file has signed entries");
          } else {
              throw new Exception("Failed to detect that the JAR file is signed");
--- 35,63 ----
  import java.util.jar.*;
  
  public class ScanSignedJar {
  
      public static void main(String[] args) throws Exception {
          boolean isSigned = false;
+         try (JarFile file = new JarFile(new File(System.getProperty("test.src","."),
+                  "bogus-signerinfo-attr.jar"))) {
+             byte[] buffer = new byte[8192];
  
              for (Enumeration entries = file.entries(); entries.hasMoreElements();) {
                  JarEntry entry = (JarEntry) entries.nextElement();
!                 try (InputStream jis = file.getInputStream(entry)) {
                      while (jis.read(buffer, 0, buffer.length) != -1) {
                          // read the jar entry
                      }
!                 }
                  if (entry.getCertificates() != null) {
                      isSigned = true;
                  }
                  System.out.println((isSigned ? "[signed] " : "\t ") +
                      entry.getName());
              }
!         }
  
          if (isSigned) {
              System.out.println("\nJAR file has signed entries");
          } else {
              throw new Exception("Failed to detect that the JAR file is signed");