Originally posted by: MBecker

Hi,

I am trying to get CP Optimizer (12.7) working on OSX, using Java in Eclipse.

I followed steps I found in a blog post online, in a similar way I managed to get CPLEX working in the same setup.

Unfortunately CP doesn't seem to work the same way.

If I try to run the example SchedSequence.java I get the following error (see below).

What confuses me is that on OSX there is no OPL. I hope someone can clear things up!

Native code library failed to load: ensure the appropriate library (opl1270.dll/.so) is in your path.
Exceptions:
no opl1270 in java.library.path
no opl_lang_wrap_cpp in java.library.path
no opl_core_wrap_cpp_java1270 in java.library.path
no opl_core_wrap_cpp in java.library.path
no cp_oaas1270 in java.library.path
no cp_oaas in java.library.path
/Users/mbr04/Applications/IBM/ILOG/CPLEX_Studio127/cpoptimizer/bin/x86-64_osx/libcp_wrap_cpp_java1270.jnilib: dlopen(/Users/mbr04/Applications/IBM/ILOG/CPLEX_Studio127/cpoptimizer/bin/x86-64_osx/libcp_wrap_cpp_java1270.jnilib, 1): Library not loaded: /nfs/home/cplexadmin/jenkins/agent-optbld30x/workspace/distrib-branch12.7/label/x64-osx.optbld30x/bin/x86-64_osx/static_pic/libcplex1270.jnilib
  Referenced from: /Users/mbr04/Applications/IBM/ILOG/CPLEX_Studio127/cpoptimizer/bin/x86-64_osx/libcp_wrap_cpp_java1270.jnilib
  Reason: image not found
no cp_wrap_cpp in java.library.path
no concert_wrap_cpp_java1270 in java.library.path
no concert_wrap_cpp in java.library.path

Exception in thread "main" java.lang.ExceptionInInitializerError
        at ilog.concert.cppimpl.IloEnv.<init>(IloEnv.java:49)
        at ilog.concert.IloModelerImpl.<init>(IloModelerImpl.java:34)
        at ilog.cp.IloCP.<init>(IloCP.java:128)
        at ilog.cp.IloCP.<init>(IloCP.java:121)
        at SchedSequence.<clinit>(SchedSequence.java:82)
Caused by: java.lang.RuntimeException: Native code library failed to load: ensure the appropriate library (opl1270.dll/.so) is in your path.
Exceptions:
no opl1270 in java.library.path
no opl_lang_wrap_cpp in java.library.path
no opl_core_wrap_cpp_java1270 in java.library.path
no opl_core_wrap_cpp in java.library.path
no cp_oaas1270 in java.library.path
no cp_oaas in java.library.path
/Users/mbr04/Applications/IBM/ILOG/CPLEX_Studio127/cpoptimizer/bin/x86-64_osx/libcp_wrap_cpp_java1270.jnilib: dlopen(/Users/mbr04/Applications/IBM/ILOG/CPLEX_Studio127/cpoptimizer/bin/x86-64_osx/libcp_wrap_cpp_java1270.jnilib, 1): Library not loaded: /nfs/home/cplexadmin/jenkins/agent-optbld30x/workspace/distrib-branch12.7/label/x64-osx.optbld30x/bin/x86-64_osx/static_pic/libcplex1270.jnilib
  Referenced from: /Users/mbr04/Applications/IBM/ILOG/CPLEX_Studio127/cpoptimizer/bin/x86-64_osx/libcp_wrap_cpp_java1270.jnilib
  Reason: image not found
no cp_wrap_cpp in java.library.path
no concert_wrap_cpp_java1270 in java.library.path
no concert_wrap_cpp in java.library.path

        at ilog.concert.IloJNILoader.loadJNI(IloJNILoader.java:88)
        at ilog.concert.cppimpl.concert_wrapJNI.<clinit>(concert_wrapJNI.java:15)
        ... 5 more

Originally posted by: rdumeur

Dear MBecker,

An easy way to know what are the setting to run java examples is to go in the

<cplex_studio_installdir>/cpoptimizer/examples/x86-64_osx/static_pic

and run the java examples:

make execute_java

This will print execution command like:

DYLD_LIBRARY_PATH=../../../bin/x86-64_osx:../../../../cplex/bin/x86-64_osx:$DYLD_LIBRARY_PATH /System/Library/Frameworks/JavaVM.framework/Versions/CurrentJDK/Home/bin/java  -classpath ../../../lib/ILOG.CP.jar:. PlantLocation

so if you add

DYLD_LIBRARY_PATH=<cplex_studio_installdir>/cpoptimizer/bin/x86-64_osx:<cplex_studio_installdir>/cplex/bin/x86-64_osx:$DYLD_LIBRARY_PATH

to your environment, your program should run.

I hope this helps,

Cheers,

Originally posted by: MBecker

Thank you for the fast answer! I managed to get the examples to run, so the rest should be manageable :) 

Originally posted by: MohammadAbdollahi

MBecker.

How did you get cpoptimizer working? I have the same platform (java + osx) and have the same error. when I'm updating DYLD_LIBRARY_PATH it ain't working. I highly appreciate your advice. Thanks!

Originally posted by: MBecker

Hi,

I managed to get the examples to execute using the script that is provided. (make execute_java)

So I now know that CP works on my OSX installation under Java. 

What I didn't manage yet is to find the correct settings for the path variables to get it working in Eclipse (unfortunately I didn't had much time to look int that lately). 

Any help in that would be great!

Originally posted by: MohammadAbdollahi

I got the examples running as well. If you open up the makefile you see that for every example the DYLD_LIBRARY_PATH is set to have .dll files for cpoptimizer (bin/x_86-64_osx). However, I'm not able to set this path variable, and I do not know why it is not working. I tried to export the path in .bash_profile, but it ain't working. I appreciate any help in this regard.

Originally posted by: MBecker

I had the same issues with trying to set this variable outside of the makefile. Any hep would be great to resolve this!

Originally posted by: MohammadAbdollahi

I added DYLD_LIBRARY_PATH to my IDE ( I'm using eclipse) environment. To do so, in your run configuration, you should add .dll files for both cplex ad cpoptimizer in your dynamic library path. I attached a screen shot of where to find it. 

Originally posted by: MBecker

Did it work like this?

I added both to the build path and linked where to find the native libraries.

Then I also set the variables similar as you did. But still the same error.

I attached screenshots of both configurations. (I try to get the SchedSequence example to work in eclipse)

Is there anything different to the way you solved it?

Any hints would be greatly appreciated :)