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Date: Mon, 11 Dec 2006 08:37:28 -0800 (PST)
From: "Leviev Ilya (JIRA)" <jira@apache.org>
To: commits@harmony.apache.org
Subject: [jira] Updated: (HARMONY-2558) [drlvm][jit] 'new' bytecode does not
 cause class initialization
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     [ http://issues.apache.org/jira/browse/HARMONY-2558?page=3Dall ]

Leviev Ilya updated HARMONY-2558:
---------------------------------

    Attachment: HARMONY-2558-reproduce-tests.zip

To run see HowTo file.

> [drlvm][jit] 'new' bytecode does not cause class initialization
> ---------------------------------------------------------------
>
>                 Key: HARMONY-2558
>                 URL: http://issues.apache.org/jira/browse/HARMONY-2558
>             Project: Harmony
>          Issue Type: Bug
>          Components: DRLVM
>            Reporter: Vladimir Beliaev
>         Attachments: HARMONY-2558-reproduce-tests.zip, Test.zip
>
>
> According to JVMS for 'new' bytecode:
> http://java.sun.com/docs/books/vmspec/2nd-edition/html/Instructions2.doc1=
0.html#new
>  ... named class, array, or interface type is resolved (=C2=A75.4.3.1) ..=
.
>  ... On successful resolution of the class, it is initialized (=C2=A75.5)=
 if it has not already been initialized....
> See also 5.5 Initialization (http://java.sun.com/docs/books/vmspec/2nd-ed=
ition/html/ConstantPool.doc.html#77976).
>   ... A class or interface may be initialized only as a result of:
>       o  The execution of any one of the Java virtual machine instruction=
s new, getstatic,...
> So, executing 'new' bytecode must cause a class initialization (in partic=
lar <clinit> call). The attached test shows it is not true for recent versi=
on of DRLVM. In this test the <clinit> produce exception which is supposed =
to be catched in 'main' method.
> The issue is not reproducible with interpreter (-Xint) - marking this bug=
 as JIT one.
> To prepare the test please build attached Jasm_part.jj first; then build =
Test.java.
> Test output is:
> $ deploy/jre/bin/java -showversion Test
> Apache Harmony Launcher : (c) Copyright 1991, 2006 The Apache Software Fo=
undation or its licensors, as applicable.
> java version "1.5.0"=20
> pre-alpha : not complete or compatible
> svn =3D r482108, (Dec  8 2006), Windows/ia32/msvc 1310, debug build
> http://incubator.apache.org/harmony
> FAILED: no exception...
> $ deploy/jre/bin/java -showversion -Xint Test
> Apache Harmony Launcher : (c) Copyright 1991, 2006 The Apache Software Fo=
undation or its licensors, as applicable.
> java version "1.5.0"=20
> pre-alpha : not complete or compatible
> svn =3D r482108, (Dec  8 2006), Windows/ia32/msvc 1310, debug build
> http://incubator.apache.org/harmony
> PASSED...
> $ java -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...
> Thanks
> Vladimir

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