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Date: Tue, 8 Aug 2006 02:54:13 -0700 (PDT)
From: "Vladimir Ivanov (JIRA)" <jira@apache.org>
To: harmony-commits@incubator.apache.org
Subject: [jira] Created: (HARMONY-1101) [classlib][archive] unexpected
 IOException for double ZipInputStream().close()
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[classlib][archive] unexpected IOException for double ZipInputStream().close()
------------------------------------------------------------------------------

                 Key: HARMONY-1101
                 URL: http://issues.apache.org/jira/browse/HARMONY-1101
             Project: Harmony
          Issue Type: Bug
          Components: Classlib
            Reporter: Vladimir Ivanov


The spec says for the method java.io.Closeable.close(): "If the stream is already closed then invoking this method has no effect".
The spec for java.util.zip.ZipInputStream.close() says nothing for double call but RI follow the spec for Closeable and do nothing while Harmony throws IOException.

====================== test.java ======================
import java.io.*; 
import java.util.zip.*; 

public class test { 
    public static void main(String args[]) { 
        ZipInputStream zis = null; 
        try { 
            File f=new File("myFile"); 
            f.createNewFile(); 
            f.deleteOnExit(); 
            BufferedInputStream b = new BufferedInputStream(new FileInputStream(f)); 
            zis = new ZipInputStream(new BufferedInputStream(b)); 
        } catch (IOException e) { 
            System.out.println("unexpected exception: " + e);
            return;
        } 
        try {
            if (zis != null) { 
                zis.close(); 
                zis.close();
            }
            System.out.println("PASSED"); 
        } catch (IOException e) { 
            System.out.println("FAILED: " + e); 
            e.printStackTrace();
        } 
    } 
} 
====================================================

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))

PASSED

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.
FAILED: java.io.IOException: Stream is closed
java.io.IOException: Stream is closed
        at java.util.zip.ZipInputStream.closeEntry(ZipInputStream.java:90)
        at java.util.zip.ZipInputStream.close(ZipInputStream.java:80)
        at test.main(test.java:20)


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