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From "Tony Wu" <wuyue...@gmail.com>
Subject Re: [jira] Created: (HARMONY-2321) [classlib] Launcher fails to find properties location when bad -Djava.home is specified on the command line
Date Mon, 14 May 2007 10:32:23 GMT
hmm, my opinion is set up another property pointing to the excuteable
path, e.g. hy.home. then craft the org.apache.harmony.boot.class.path
by hy.home rather than java.home.

On 5/14/07, Gregory Shimansky <gshimansky@apache.org> wrote:
> LvJimmy,Jing wrote:
> > Agreed, it is strange that Harmony need correct java.home property to
> > execute as it is not necessary for RI.
>
> VM doesn't depend on java.home property, it depends on
> org.apache.harmony.boot.class.path to find bootstrap classes. As I wrote
> in the bug report, when bad java.home is specified, launcher fails to
> initialize org.apache.harmony.boot.class.path properly.
>
> > 2007/4/29, Tony Wu <wuyuehao@gmail.com>:
> >> Hi all,
> >> I agree with Gregory that this system is wrong, but I think the root
> >> cause is not in the launcher. If we ignore the java.home passed on cmd
> >> line in launcher and pass the executable path to vm as java.home, we
> >> have to set the property after vm has been created(this is one
> >> solution) otherwise we lose the feature to set this property.(RI could
> >> print correct (System.getProperty("java.home")) in this case)
> >>
> >> IMO, VM should not depend on the system property "java.home" to load
> >> its own libraries. So, another solution is, pass executable path to vm
> >> in another manner instead of using java.home.
> >>
> >> I'm not sure that which one is better, what's your opinion and do you
> >> have any suggestion on this problem?
> >>
> >
> > Either is OK IMHO, just behave as RI does.
> >
> >> On 11/25/06, Gregory Shimansky (JIRA) <jira@apache.org> wrote:
> >> > [classlib] Launcher fails to find properties location when bad
> >> -Djava.home is specified on the command line
> >> >
> >> -----------------------------------------------------------------------------------------------------------
> >>
> >> >
> >> >                 Key: HARMONY-2321
> >> >                 URL: http://issues.apache.org/jira/browse/HARMONY-2321
> >> >             Project: Harmony
> >> >          Issue Type: Bug
> >> >          Components: Classlib
> >> >         Environment: All
> >> >            Reporter: Gregory Shimansky
> >> >
> >> >
> >> > A short investigation shows that launcher parses -Djava.home passed
> >> on the command line. Later on while classlib is initialized the
> >> function readClassPathFromPropertiesFile calls properties_load with
> >> file name formed as ${java.home}/lib/boot/bootclasspath.properties. If
> >> this file is not found and properties_load, then no value is assigned
> >> to org.apache.harmony.boot.class.path.
> >> >
> >> > I think this system is wrong. The launcher should not pay attention
> >> to java.home passed on the command line. The location should be found
> >> from the executable path probably. RI doesn't crash or fail its boot
> >> classes when I specify bad -Djava.home on the command line.
> >> >
> >> >
> >> > --
> >> > This message is automatically generated by JIRA.
> >> > -
> >> > If you think it was sent incorrectly contact one of the
> >> administrators: http://issues.apache.org/jira/secure/Administrators.jspa
> >> > -
> >> > For more information on JIRA, see:
> >> http://www.atlassian.com/software/jira
> >> >
> >> >
> >> >
> >>
> >>
> >> --
> >> Tony Wu
> >> China Software Development Lab, IBM
> >>
> >
> >
>
>
> --
> Gregory
>
>


-- 
Tony Wu
China Software Development Lab, IBM

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