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From "Mikhail Loenko (JIRA)" <j...@apache.org>
Subject [jira] Assigned: (HARMONY-667) [classlib][io]java.io.BufferedInputStream.skip(int n) unexpected NPE
Date Tue, 27 Jun 2006 10:30:32 GMT
     [ http://issues.apache.org/jira/browse/HARMONY-667?page=all ]

Mikhail Loenko reassigned HARMONY-667:
--------------------------------------

    Assign To: Mikhail Loenko

> [classlib][io]java.io.BufferedInputStream.skip(int n) unexpected NPE
> --------------------------------------------------------------------
>
>          Key: HARMONY-667
>          URL: http://issues.apache.org/jira/browse/HARMONY-667
>      Project: Harmony
>         Type: Bug

>   Components: Classlib
>     Reporter: Vladimir Ivanov
>     Assignee: Mikhail Loenko
>  Attachments: BufferedInputStreamTest.patch
>
> The java.io.BufferedInputStream.skip(int n) throws unexpected NPE if object was constructed
as BufferedInputStream(null, ...) while RI throws IOException. The same behavior observed
for java.io.BufferedInputStream.close()  too.
> =================== test.java ============================
> import java.io.*;
> public class test {
>    public static void main (String[] args) { 
>             BufferedInputStream buf = new BufferedInputStream(null,5);
>             try {
>                 buf.skip(1);
>             } catch (Exception e) {
>                 e.printStackTrace();
>             }                         
>             try {
>                 buf.close();
>             } catch (Exception e) {
>                 e.printStackTrace();
>             }                         
>    }   
> }
> ======================================================
> Output:
> C:\tmp\tmp17>C:\jrockit-j2sdk1.4.2_04\bin\java.exe -showversion test
> 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)
> java.io.IOException: Stream closed
>         at java.io.BufferedInputStream.ensureOpen()V(BufferedInputStream.java:120)
>         at java.io.BufferedInputStream.skip(J)J(BufferedInputStream.java:296)
>         at test.main([Ljava.lang.String;)V(test.java:7)
> C:\tmp\tmp17>C:\harmony\trunk_0427\deploy\jdk\jre\bin\java.exe -showversion test
> java version 1.5 (subset)
> (c) Copyright 1991, 2006 The Apache Software Foundation or its licensors, as applicable.
> java.lang.NullPointerException
>         at java.io.BufferedInputStream.skip(BufferedInputStream.java:339)
>         at test.main(test.java:7)
> java.lang.NullPointerException
>         at java.io.FilterInputStream.close(FilterInputStream.java:68)
>         at java.io.BufferedInputStream.close(BufferedInputStream.java:112)
>         at test.main(test.java:12)
> C:\tmp\tmp17>

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