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  1. JDK
  2. JDK-4111750

zip DeflaterOutputStream/InflaterInputStream ctors don't check for null

    Details

    • Subcomponent:
      jar
    • Resolved In Build:
      1.2fcs
    • CPU:
      sparc
    • OS:
      solaris_2.5
    • Verification:
      Verified

      Description



      Name: sdC67446 Date: 02/12/98


      Constructor java.util.zip.DeflaterOutputStream(OutputStream os, Deflater def)
      doesn't check parameter "def" for null. Thus calling the write method later
      causes undocumented NullPointerException.

      The similar bug is present in InflaterInputStream constructor as well.

      --------------------------------------------------
      Here is the test demonstrating the bug:
      -----------------Test.java------------------------
      import java.util.zip.*;
      import java.io.*;

      public class Test {
        
        public static void main(String[] args) {

          ByteArrayOutputStream bos = new ByteArrayOutputStream();
          Deflater def = null;
          
          DeflaterOutputStream defOS = new DeflaterOutputStream(bos, def);
          System.out.println("Constructed!");
          
          try {
            defOS.write(100);
          } catch ( NullPointerException e ) {
            System.out.println("NullPointerException thrown while writing!");
          } catch ( IOException e ) {
            System.out.println(e);
          }
        }
      }
      ---------Output from the test---------------------
      Constructed!
      NullPointerException thrown while writing!
      --------------------------------------------------

      ======================================================================

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            • Assignee:
              dconnellsunw David Connelly (Inactive)
              Reporter:
              sdmitriesunw Sergei Dmitriev (Inactive)
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                Updated:
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