Linux JNI

[oupablo]

I'm having some issues getting the paylink to connect using the Tester java app included in the distribution. I'm using the 4-1-12-6 distribution. The AESCDriver works, the AESDemo runs fine and can see the coin device. The CoinRead program runs without issue. However, the Tester java app throws the following error.

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Hello
/usr/lib/jvm/java-7-oracle/bin/java: symbol lookup error: /usr/local/lib/libAESImheiJava.so.1.2.0: undefined symbol: OpenMHEVersion

It looks like someone else was having a similar issue before here but no resolution was ever posted. It looks like the OpenMHEVersion function is defined in Aesimhei.cpp and the driver seems to work fine.

Any help is appreciated.

[davebush]

I reproduced your problem, but do not understand the details of what causes it. In the end, I found that specifying the libraries differently when building the JNI so stop the problem happening. I can't see how this problem would have escaped final testing, so I can only imagine that Ubuntu has recently changed "something".

A modified makefile for the Java system is here: http://aesoffice.eu.com/HTTPSpace/Paylink/makefile.zip

If you do the sequence:

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./build.sh
make install
.test.sh

That will rebuild the so for the JNI interface and should fix your problem.

[oupablo]

Thank you very much. The new makefile looks to be working.

[davebush]

You're welcome.

If I ever find out why the problem occurred, I'll post it here.