[Wrapper-user] getting hardware arch using just java

[Richard E. <rem...@ed...>]

I have to support solaris, linux and windows on
32 and 64 bit machines.
The wrapper executable and native library comes in
32 and 64 bit versions for those OSs.
What I need is the ability during an installation
to know what the machine (the hardware) architecture
is, 32 or 64 bit. I need to be able to know this
from within a java process (actually an Ant task).
I discovered today on my 64 bit workstation that if
I run java 1.4.x, a 32 bit java, then the system
property os.arch has the value i386 but if I run java
1.5.x the os.arch has the value amd64 --- os.arch
does not give the hardware architecture but rather
the java vm architecture. In order to install the
correct version of the wrapper executable and
native libaray I need the true hardware architecture
independent of what jvm I will be running.
Any thoughts as to how to get this information
using just java?

Richard

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