test/jdk/java/io/RandomAccessFile/UnreferencedRAFClosesFd.java

rev 50699 : 8202292: java/io/FileOutputStream/UnreferencedFOSClosesFd.java fails with "raw fd count wrong"

*** 22,46 ****
--- 22,53 ----
   */
  
  import java.io.File;
  import java.io.FileDescriptor;
  import java.io.FileNotFoundException;
+ import java.io.IOException;
  import java.io.RandomAccessFile;
  import java.lang.management.ManagementFactory;
  import java.lang.management.OperatingSystemMXBean;
  import java.lang.ref.Cleaner;
  import java.lang.ref.Reference;
  import java.lang.ref.ReferenceQueue;
  import java.lang.ref.WeakReference;
  import java.lang.reflect.Field;
+ import java.nio.file.Path;
+ import java.util.ArrayDeque;
  import java.util.HashSet;
  
  import com.sun.management.UnixOperatingSystemMXBean;
  
+ import jdk.test.lib.util.FileUtils;
+ 
  /**
   * @test
   * @bug 8080225
+  * @library /test/lib
+  * @build jdk.test.lib.util.FileUtils UnreferencedRAFClosesFd
   * @modules java.base/java.io:open
   * @summary Test to ensure that an unclosed and unreferenced RandomAccessFile closes the fd
   * @run main/othervm UnreferencedRAFClosesFd
   */
  public class UnreferencedRAFClosesFd {
*** 52,63 ****
  
          File inFile= new File(System.getProperty("test.dir", "."), FILE_NAME);
          inFile.createNewFile();
          inFile.deleteOnExit();
  
          long fdCount0 = getFdCount();
-         System.out.printf("initial count of open file descriptors: %d%n", fdCount0);
  
          String name = inFile.getPath();
          RandomAccessFile raf;
          try {
              // raf is explicitly *not* closed to allow cleaner to work
--- 59,70 ----
  
          File inFile= new File(System.getProperty("test.dir", "."), FILE_NAME);
          inFile.createNewFile();
          inFile.deleteOnExit();
  
+         FileUtils.listFileDescriptors(System.out);
          long fdCount0 = getFdCount();
  
          String name = inFile.getPath();
          RandomAccessFile raf;
          try {
              // raf is explicitly *not* closed to allow cleaner to work
*** 99,112 ****
          Reference.reachabilityFence(raf);
          Reference.reachabilityFence(pending);
  
          // Check the final count of open file descriptors
          long fdCount = getFdCount();
-         System.out.printf("final count of open file descriptors: %d%n", fdCount);
          if (fdCount != fdCount0) {
!             throw new AssertionError("raw fd count wrong: expected: " + fdCount0
!                     + ", actual: " + fdCount);
          }
      }
  
  
      // Get the count of open file descriptors, or -1 if not available
--- 106,119 ----
          Reference.reachabilityFence(raf);
          Reference.reachabilityFence(pending);
  
          // Check the final count of open file descriptors
          long fdCount = getFdCount();
          if (fdCount != fdCount0) {
!             System.out.printf("initial count of open file descriptors: %d%n", fdCount0);
!             System.out.printf("final count of open file descriptors: %d%n", fdCount);
!             FileUtils.listFileDescriptors(System.out);
          }
      }
  
  
      // Get the count of open file descriptors, or -1 if not available