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Article #11638

Re: about HotSpot!

#11638
From: Tad Frysinger
Date: Mon, 03 May 1999 00:00
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1734 bytes
In article <MPG.1196dbde73c48580989bf2@forums.inprise.com>, 
supportinfo@inprise.com says...
> In article <7gi9io$2sk2@forums.borland.com>, kshakir@prosys.com.pk 
> says...
> > I used that Hotspot with JRE 1.2 but with the class files that are build
> > using JDK 1.1.8 kit...
> > I am not using that software with JRE 1.1
> > 
> 
> If you compiled the class files to JDK 1.1.8 specifications they should 
> be compatible with the JRE for 1.1.8 but not JRE 1.2.  IOW, you will have 
> JDK 1.1.8 classes which contain 1.1.8 bytecode and will require the 
> matching JRE to run successfully.  There is no way they will work 
> reliably (if at all) under JRE 1.2 or Hotspot until you recompile (javac) 
> under JDK 1.2.  If you managed to get classes compiled with 1.1.8 to load 
> with JRE1.2 it must be pure luck that the bytecode for some classes is 
> compatible, but when you get to hotspot all bets are off.
> 
By default, byte codes are the same between 1.1 and 1.2, unless a flag is 
used to explicitly turned off compatibility in 1.2.  Otherwise (for 
example), you wouldn't be able to use a 1.2 compiler against 1.1 code.

Tad Frysinger (TeamB)
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References: <7gfmb0$9s7@forums.borland.com> <MPG.1195a0944696c1a5989bf1@forums.inprise.com> <7gi9io$2sk2@forums.borland.com> <MPG.1196dbde73c48580989bf2@forums.inprise.com>

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From: tfrysinger@earthlink.net (Tad Frysinger)
Subject: Re: about HotSpot!
Date: 1999/05/03
Message-ID: <MPG.1197e8234c8924db9899d8@forums.borland.com>
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References: <7gfmb0$9s7@forums.borland.com> <MPG.1195a0944696c1a5989bf1@forums.inprise.com> <7gi9io$2sk2@forums.borland.com> <MPG.1196dbde73c48580989bf2@forums.inprise.com>
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