[SCIP] Build the JNI interface in SCip folder

[Felipe Serrano]

Hi Soukaina

We no longer support the JNI that came with older versions of SCIP.
The Java interface for the newest version of SCIP (4.0), can be found here:

https://github.com/SCIP-Interfaces/JSCIPOpt

If you experience any problems, please open an issue there.

Best,
Felipe

On Mon, Jul 31, 2017 at 7:47 PM, Soukaina Sema <soukaina.sema at gmail.com>
wrote:

> Hi augain,
> I got this when typing  make from the JniKnapsack directory
>
>
> ~/scipoptsuite-3.2.0/scip-3.2.0/interfaces/jni/examples/JniKnapsack$ make
> -> compiling classes/JniKnapsack.class
> java/JniKnapsack.java:22: error: package de.zib.jscip.nativ does not exist
> import de.zib.jscip.nativ.*;
> ^
> java/JniKnapsack.java:23: error: package de.zib.jscip.nativ.jni does not
> exist
> import de.zib.jscip.nativ.jni.*;
> ^
> java/JniKnapsack.java:34: error: cannot find symbol
>       JniScipLibraryLoader.loadLibrary();
>       ^
>   symbol:   variable JniScipLibraryLoader
>   location: class JniKnapsack
> java/JniKnapsack.java:49: error: cannot find symbol
>      JniScip env = new JniScip();
>      ^
>   symbol:   class JniScip
>   location: class JniKnapsack
> java/JniKnapsack.java:49: error: cannot find symbol
>      JniScip env = new JniScip();
>                        ^
>   symbol:   class JniScip
>   location: class JniKnapsack
> java/JniKnapsack.java:52: error: cannot find symbol
>      JniScipVar envVar = new JniScipVar();
>      ^
>   symbol:   class JniScipVar
>   location: class JniKnapsack
> java/JniKnapsack.java:52: error: cannot find symbol
>      JniScipVar envVar = new JniScipVar();
>                              ^
>   symbol:   class JniScipVar
>   location: class JniKnapsack
> java/JniKnapsack.java:55: error: cannot find symbol
>      JniScipCons envCons = new JniScipCons();
>      ^
>   symbol:   class JniScipCons
>   location: class JniKnapsack
> java/JniKnapsack.java:55: error: cannot find symbol
>      JniScipCons envCons = new JniScipCons();
>                                ^
>   symbol:   class JniScipCons
>   location: class JniKnapsack
> java/JniKnapsack.java:58: error: cannot find symbol
>      JniScipConsKnapsack envConsKnapsack = new JniScipConsKnapsack();
>      ^
>   symbol:   class JniScipConsKnapsack
>   location: class JniKnapsack
> java/JniKnapsack.java:58: error: cannot find symbol
>      JniScipConsKnapsack envConsKnapsack = new JniScipConsKnapsack();
>                                                ^
>   symbol:   class JniScipConsKnapsack
>   location: class JniKnapsack
> java/JniKnapsack.java:61: error: cannot find symbol
>      JniScipConsLinear envConsLinear = new JniScipConsLinear();
>      ^
>   symbol:   class JniScipConsLinear
>   location: class JniKnapsack
> java/JniKnapsack.java:61: error: cannot find symbol
>      JniScipConsLinear envConsLinear = new JniScipConsLinear();
>                                            ^
>   symbol:   class JniScipConsLinear
>   location: class JniKnapsack
> java/JniKnapsack.java:139: error: cannot find symbol
>      if( status == JniScipStatus.SCIP_STATUS_OPTIMAL )
>                    ^
>   symbol:   variable JniScipStatus
>   location: class JniKnapsack
> java/JniKnapsack.java:151: error: cannot find symbol
>       catch (NativeScipException e)
>              ^
>   symbol:   class NativeScipException
>   location: class JniKnapsack
> java/JniKnapsack.java:162: error: cannot find symbol
>      JniScip env = new JniScip();
>      ^
>   symbol:   class JniScip
>   location: class JniKnapsack
> java/JniKnapsack.java:162: error: cannot find symbol
>      JniScip env = new JniScip();
>                        ^
>   symbol:   class JniScip
>   location: class JniKnapsack
> java/JniKnapsack.java:165: error: cannot find symbol
>      JniScipVar envVar = new JniScipVar();
>      ^
>   symbol:   class JniScipVar
>   location: class JniKnapsack
> java/JniKnapsack.java:165: error: cannot find symbol
>      JniScipVar envVar = new JniScipVar();
>                              ^
>   symbol:   class JniScipVar
>   location: class JniKnapsack
> java/JniKnapsack.java:192: error: cannot find symbol
>       catch (NativeScipException e)
>              ^
>   symbol:   class NativeScipException
>   location: class JniKnapsack
> 20 errors
> Makefile:69 : la recette pour la cible « classes/JniKnapsack.class » a
> échouée
> make: *** [classes/JniKnapsack.class] Erreur 1
>
> 2017-07-31 17:47 GMT+01:00 Soukaina Sema <soukaina.sema at gmail.com>:
>
>> Hello,
>>
>>
>> I have a problem while trying to use  the scip solver from the Java api,
>> via the JNI interface, I think that I did every step describing in the read
>> me file, but I got this error when arriving at step 6  which is: make
>> before make run  ( I use the scip-3.2.0 version )
>>
>> Thanks for any suggestion!
>>
>> Best regards
>>
>> ****************************************************
>> ~/scipoptsuite-3.2.0/scip-3.2.0/interfaces/jni$ make
>> -> generating library loader java/de/zib/jscip/nativ/jni/Jn
>> iScipLibraryLoader.java
>> bash: java/de/zib/jscip/nativ/jni/JniScipLibraryLoader.java: Aucun
>> fichier ou dossier de ce type
>> Makefile:495 : la recette pour la cible « java/de/zib/jscip/nativ/jni/JniScipLibraryLoader.java »
>> a échouée
>> make: *** [java/de/zib/jscip/nativ/jni/JniScipLibraryLoader.java] Erreur
>> 1
>> *********************************************************
>>
>>
>
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>
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