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From "Tim Ellison (JIRA)" <j...@apache.org>
Subject [jira] Assigned: (HARMONY-86) java.util.zip.Inflater.needsDictionary() throws unspecified IllegalStateException
Date Tue, 14 Feb 2006 13:27:09 GMT
     [ http://issues.apache.org/jira/browse/HARMONY-86?page=all ]

Tim Ellison reassigned HARMONY-86:
----------------------------------

    Assign To: Tim Ellison

> java.util.zip.Inflater.needsDictionary() throws unspecified IllegalStateException
> ---------------------------------------------------------------------------------
>
>          Key: HARMONY-86
>          URL: http://issues.apache.org/jira/browse/HARMONY-86
>      Project: Harmony
>         Type: Bug
>   Components: Classlib
>     Reporter: Svetlana Samoilenko
>     Assignee: Tim Ellison

>
> According to the j2se 1.4 and 1.5 specification java.util.zip.needsDictionary() method
must not throw any exception.
> Harmony throws unspecified IllegalStateException that contradicts specification.
> Code to reproduce: 
> import java.util.zip.*; 
> public class test2 { 
>     public static void main(String args[]) { 
>         Inflater inf = new Inflater(); 
>         System.out.println("Inflater.needsDictionary() = "+inf.needsDictionary()); 
>     } 
> }
> 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.needsDictionary() = true
> 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.lang.IllegalStateException
>         at java.util.zip.Inflater.needsDictionary(Inflater.java:212)
>         at test2.main(test2.java:8)
> Siggested fix: to remove the lines in needsDictionary() method in archive/src/main/java/java/util/zip/Inflater.java
:   
>          211              if (inputBuffer == null)
>          212                    throw new IllegalStateException();
>  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_needsDictionary () { 
>        Inflater inf = new Inflater(); 
>        assertFalse(inf.needsDictionary());
>    } 
> }

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