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I am using a PDF Prep Tool library (from www.pdf-tools.com) and it
seems to work just fine on Windows and AIX. I am currently trying to
use it with Red Hat 7.2, but I keep getting a
java.lang.UnsatisfiedLinkError with the message "undefined symbol:
__cxa_pure_virtual at java.lang.ClassLoader$NativeLibrary.load(Native
Method)".

I have created a very simple test program that just tries to load the
library and then exit. I continue to get this error. The library is
in my LD_LIBRARY_PATH and I have tried adding it to the path, and
classpath (figured it couldn't hurt). However, when I explicitly load
stdc++ (which is also in the same paths), using the System.LoadLibrary
method, right before I load the prep tool library no exception occurs.
(I used the ldd utility to find out what the prep tool library has as
its dependencies, but the stdc++ isn't one of them. The reason I
tried it stems from the fact that the website mentions that you need
to have it installed on a unix based system)
Why does that happen?

Unfortunately that is not an acceptable fix because this application
is meant to be platform independent.

Any suggestions would be greatly appreciated.

"Jared" wrote:

> Unfortunately that is not an acceptable fix because this application
> is meant to be platform independent.

You have chosen a tool which is a native library. So you will never be
platform independent. The only solution is to find another, 100% Java
only library.

Frankly said, I can' understand why someone choses a native library at
all if one has a requirement to be platform independent. I mean PDF
Tools AG clearly states that you get a native library. And now you are
surprised?

HH