Exception: Unexpected end of ZLIB input stream

by

You have to call close() on the GZIPOutputStream before you attempt to read it. The final bytes of the file will only be written when the stream object is actually closed.

(This is irrespective of any explicit buffering in the output stack. The stream only knows to compress and write the last bytes when you tell it to close. A flush() won’t help … though calling finish() instead of close() should work. Look at the javadocs.)

Here’s the correct code (in Java);

package test;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.zip.GZIPInputStream;
import java.util.zip.GZIPOutputStream;

public class GZipTest {

    public static void main(String[] args) throws
                FileNotFoundException, IOException {
        String name = "/tmp/test";
        GZIPOutputStream gz = new GZIPOutputStream(new FileOutputStream(name));
        gz.write(10);
        gz.close();       // Remove this to reproduce the reported bug
        System.out.println(new GZIPInputStream(new FileInputStream(name)).read());
    }
}

(I’ve not implemented resource management or exception handling / reporting properly as they are not relevant to the purpose of this code. Don’t treat this as an example of “good code”.)

More Related Contents:

  1. Write Java Program to grade Scala Homeworks
  2. Scanner is skipping nextLine() after using next() or nextFoo()?
  3. Scanner is skipping nextLine() after using next() or nextFoo()?
  4. How to use java.String.format in Scala?
  5. How to simulate keyboard presses in java?
  6. Shuffle a list of integers with Java 8 Streams API
  7. Is asynchronous jdbc call possible?
  8. Sign CSR using Bouncy Castle
  9. What throws an IOException in Java?
  10. How to copy file from one location to another location?
  11. Java: Reading integers from a file into an array
  12. FileInputStream vs FileReader
  13. Java compile speed vs Scala compile speed
  14. Memory barriers and coding style over a Java VM
  15. How to make a folder hidden using java
  16. Get file name from FileOutputStream
  17. What is InputStream & Output Stream? Why and when do we use them?
  18. What are the Spark transformations that causes a Shuffle?
  19. Listing files in a directory matching a pattern in Java [duplicate]
  20. How do I disambiguate in Scala between methods with vararg and without
  21. In Java, what is the default location for newly created files?
  22. java.io.StreamCorruptedException: invalid stream header: 7371007E
  23. Given a Java InputStream, how can I determine the current offset in the stream?
  24. How to break a file into pieces using Java?
  25. How can I read comma separated values from a text file in Java?
  26. Which programming languages can be used to develop in Android? [duplicate]
  27. Resetting Standard output Stream
  28. Creating a jar file from a Scala file
  29. Difference between SparkContext, JavaSparkContext, SQLContext, and SparkSession?
  30. Will using longs instead of ints benefit in 64bit java

Leave a Comment