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From "Ilya Okomin (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HARMONY-1080) [classlib][crypto] compatibility: Harmony CipherInputStream().read(..) returns 0 while RI throws NPE
Date Fri, 25 Aug 2006 08:37:23 GMT
     [ http://issues.apache.org/jira/browse/HARMONY-1080?page=all ]

Ilya Okomin updated HARMONY-1080:
---------------------------------

    Attachment: harmony-1080.patch

This issue concerns case when 

         new CipherInputStream(null, new NullCipher()).read(new byte[] {}) 

call doesn't throw NPE, as RI does.

Try this simple patch, that fixes both cases.

> [classlib][crypto] compatibility: Harmony CipherInputStream().read(..) returns 0 while
RI throws NPE
> ----------------------------------------------------------------------------------------------------
>
>                 Key: HARMONY-1080
>                 URL: http://issues.apache.org/jira/browse/HARMONY-1080
>             Project: Harmony
>          Issue Type: Bug
>          Components: Classlib
>            Reporter: Vladimir Ivanov
>         Assigned To: Mikhail Loenko
>            Priority: Minor
>         Attachments: CipherInputStreamTest.patch, harmony-1080.patch
>
>
> RI throws NPE for  CipherInputStream .read(byte[], int offset, int len) method if len
==0 and object was created with null arguments while
> Harmony at first checks len  and returns 0 if len =0.
> =============== test.java ==================
> import javax.crypto.*;
> public class test  {
>     public static void main (String[] args) throws Exception {
>         System.out.println("res = " + new CipherInputStream(null, new NullCipher()).read(new
byte[] {}, 1, 0));
>     }
> }
> ========================================
> Output:
> C:\tmp\tmp17>C:\jrockit-jdk1.5.0-windows-ia32\bin\java.exe -cp . -showversion test
> java version "1.5.0"
> Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-b64)
> BEA WebLogic JRockit(R) (build dra-38972-20041208-2001-win-ia32, R25.0.0-75, GC: System
optimized over throughput (initial strategy singleparpar))
> java.lang.NullPointerException
>         at javax.crypto.CipherInputStream.a()I(DashoA12275:???)
>         at javax.crypto.CipherInputStream.read([BII)I(DashoA12275:???)
>         at test.main(test.java:6)
> C:\tmp\tmp17>C:\harmony\trunk_0427\deploy\jdk\jre\bin\java.exe -cp . -showversion
test
> java version 1.5 (subset)
> (c) Copyright 1991, 2006 The Apache Software Foundation or its licensors, as applicable.
> res = 0

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