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  1. JDK
  2. JDK-8054027

zipinputstream.getNextEntry() sometimes return a/b.txt instead of first entry a

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    • Subcomponent:
    • CPU:
      x86
    • OS:
      windows_7

      Description

      FULL PRODUCT VERSION :
      java version "1.6.0_29"
      Java(TM) SE Runtime Environment (build 1.6.0_29-b11)
      Java HotSpot(TM) Client VM (build 20.4-b02, mixed mode, sharing)

      ADDITIONAL OS VERSION INFORMATION :
      Microsoft Windows XP [Version 5.1.2600]
      Microsoft Windows [Version 6.1.7601]

      A DESCRIPTION OF THE PROBLEM :
      The problem maybe not reproduce-able every time. but when it can reproduce one time. it's reproduce-able from then on.

      I created a zip file on windows server 2008 by:
      1. right click the mouse->New->Compressed(zipped) Folder
      2. rename it to a.zip
      3. then create a empty folder named: a
      4. then in folder a create a new txt file named: b.txt
      5. drag the folder a to the zipped folder: a.zip
      6. add any another jar file to the zip.
      7. use the java code to unzip the zip.
      8. there is an exception thrown:java.io.FileNotFoundException: C:\installTest\tmp\1343099963134\a\c.txt (The system cannot find the path specified)
      at java.io.FileOutputStream.open(Native Method)
      at java.io.FileOutputStream.<init>(FileOutputStream.java:194)
      at java.io.FileOutputStream.<init>(FileOutputStream.java:84)
      at Test.extractZip(Test.java:41)
      at Test.main(Test.java:62)



      REGRESSION. Last worked in version 6u31

      STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
      I created a zip file on windows server 2008 by:
      1. right click the mouse->New->Compressed(zipped) Folder
      2. rename it to a.zip
      3. then create a empty folder named: a
      4. then in folder a create a new txt file named: b.txt
      5. drag the folder a to the zipped folder: a.zip
      6. add any another jar file to the zip.
      7. use the java code to unzip the zip.
      8. there is an exception thrown:java.io.FileNotFoundException: C:\installTest\tmp\1343099963134\a\c.txt (The system cannot find the path specified)
      at java.io.FileOutputStream.open(Native Method)
      at java.io.FileOutputStream.<init>(FileOutputStream.java:194)
      at java.io.FileOutputStream.<init>(FileOutputStream.java:84)
      at Test.extractZip(Test.java:41)
      at Test.main(Test.java:62)

      EXPECTED VERSUS ACTUAL BEHAVIOR :
      EXPECTED -
      The problem maybe: it should find the folder a first, then find the file b.txt under it.
      ACTUAL -
      But it seems found the file a/b.txt directlly and skip the folder a

      ERROR MESSAGES/STACK TRACES THAT OCCUR :
      java.io.FileNotFoundException: C:\installTest\tmp\1343099963134\a\c.txt (The system cannot find the path specified)
      at java.io.FileOutputStream.open(Native Method)
      at java.io.FileOutputStream.<init>(FileOutputStream.java:194)
      at java.io.FileOutputStream.<init>(FileOutputStream.java:84)
      at Test.extractZip(Test.java:41)
      at Test.main(Test.java:62)

      REPRODUCIBILITY :
      This bug can be reproduced often.

      ---------- BEGIN SOURCE ----------

      public static void extractZip(String sourcePath, String fileName, String destPath){


      File destFile = new File(destPath);
      if(!destFile.exists()){
      destFile.mkdirs();
      }
              try
              {
                  byte[] buf = new byte[1024];
                  ZipInputStream zipinputstream = null;
                  ZipEntry zipentry;
                  zipinputstream = new ZipInputStream(new BufferedInputStream(
                          new FileInputStream(sourcePath+File.separator+fileName)));

                  zipentry = zipinputstream.getNextEntry();
                  while (zipentry != null)
                  {
                      //for each entry to be extracted
                      String entryName = destPath +File.separator+ zipentry.getName();
                      int n;
                      FileOutputStream fileoutputstream;
                      File newFile = new File(entryName);
                      if (zipentry.isDirectory()) {
                          if (!newFile.mkdirs()) {
                              break;
                          }
                          zipentry = zipinputstream.getNextEntry();
                          continue;
                      }
                  
                      fileoutputstream = new FileOutputStream(entryName);

                      while ((n = zipinputstream.read(buf, 0, 1024)) > -1) {
                          fileoutputstream.write(buf, 0, n);
                      }

                      fileoutputstream.close();
                      zipinputstream.closeEntry();
                      zipentry = zipinputstream.getNextEntry();
                  }//while

                  zipinputstream.close();
              }
              catch (Exception e)
              {
                  e.printStackTrace();
              }
          }



      the exception was thrown by this line:
         fileoutputstream = new FileOutputStream(entryName);
      ---------- END SOURCE ----------

      CUSTOMER SUBMITTED WORKAROUND :
      before execute the above line, check if the parent of the file exists or not, if not, make dirs first

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            Assignee:
            sherman Xueming Shen
            Reporter:
            mbankal Mala Bankal (Inactive)
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              Dates

              Created:
              Updated:
              Resolved:
              Imported: