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Posted to commits@harmony.apache.org by "Svetlana Samoilenko (JIRA)" <ji...@apache.org> on 2006/10/03 14:13:21 UTC
[jira] Commented: (HARMONY-81) java.util.zip.Inflater.infalate()
throws DataFormatException instead of actual number of uncompressed bytes
[ http://issues.apache.org/jira/browse/HARMONY-81?page=comments#action_12439471 ]
Svetlana Samoilenko commented on HARMONY-81:
--------------------------------------------
Mikhail/ Alexey,
thank you, bug is not reproducible with latest sources.
> java.util.zip.Inflater.infalate() throws DataFormatException instead of actual number of uncompressed bytes
> -----------------------------------------------------------------------------------------------------------
>
> Key: HARMONY-81
> URL: http://issues.apache.org/jira/browse/HARMONY-81
> Project: Harmony
> Issue Type: Bug
> Components: Classlib
> Reporter: Svetlana Samoilenko
> Assigned To: Mikhail Loenko
> Attachments: fix-JIRA-81.diff, HARMONY-81-Test.diff, HARMONY-81.diff, harmony-81.diff
>
>
> Description:
> According to the j2se 1.4 and 1.5 specification method java.util.zip.Inflater.infalate(byte [] b, int off, int length ) returns actual number of bytes uncompressed and throws DataFormatException if the compressed data format is invalid.
> The test listed below shows that Harmony throws DataFormatException instead of return 0 (actual number of uncompressed bytes).
> Code to reproduce:
> import java.util.zip.*;
> public class test2 {
> public static void main(String[] args){
> Inflater inf = new Inflater();
> try {
> System.out.println("Inflater.inflate() = "+inf.inflate(new byte[0], 0, 0));
> } catch(DataFormatException e) {
> e.printStackTrace();
> }
> }
> } Steps to Reproduce:
> 1. Build Harmony (check-out on 2006-01-30) j2se subset as described in README.txt.
> 2. Compile test2.java using BEA 1.4 javac
> > javac -d . test2.java
> 3. Run java using compatible VM (J9)
> > java -showversion test2
> Output:
> C:\tmp>C:\jrockit-j2sdk1.4.2_04\bin\java.exe -showversion test2
> java version "1.4.2_04"
> Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_04-b05)
> BEA WebLogic JRockit(TM) 1.4.2_04 JVM (build ari-31788-20040616-1132-win-ia32, Native Threads, GC strategy: parallel)
> Inflater.inflate() = 0
> C:\tmp>C:\harmony\trunk\deploy\jre\bin\java -showversion test2
> (c) Copyright 1991, 2005 The Apache Software Foundation or its licensors, as applicable.
> java.util.zip.DataFormatException:
> at java.util.zip.Inflater.inflateImpl(Native Method)
> at java.util.zip.Inflater.inflate(Inflater.java:169)
> at test2.main(test2.java:7)
>
> Suggested junit test case:
> ------------------------ InflaterTest.java -------------------------------------------------
> import java.util.zip.*;
> import junit.framework.*;
> public class InflaterTest extends TestCase {
> public static void main(String[] args) {
> junit.textui.TestRunner.run(InflaterTest.class);
> }
> public void test_inflate () {
> Inflater inf = new Inflater();
> try {
> int n=inf.inflate(new byte[0], 0, 0);
> assertEquals(0, n);
> } catch(DataFormatException e) {
> fail("unexpected DataFormatException");
> }
> }
> }
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