Undefined symbol when using .so library on Java











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So basically I'm trying to use an .so file on java. I got this so file by compiling the o file using the ld command. This is also an wrapper for ENet library so I can use it inside java



Btw I use swig for wrapping the ENet code to java JNI code



Error code :



/usr/lib/jvm/java-8-openjdk-amd64/bin/java: symbol lookup error: /home/anom/Desktop/GrowtopiaServer/src/resources/libenet.so: undefined symbol: enet_initialize



I've managed to load the so file itself using System.loadLibrary, but I somehow got that error when trying to access the enetJNI class that is generated by swig



If you want to try if this is working on your side or not. You can take a look at Swig and Java example here http://www.swig.org/Doc1.3/Java.html#java_overview to build you will also need the .i file. You can get one from here https://pastebin.com/










share|improve this question
























  • How does it relate with c++?
    – Rhathin
    Nov 22 at 11:45










  • Ummm c++ would be related for the 'compiling' the o file then
    – DrOreo002 Gaming
    Nov 22 at 11:53










  • How is the enet_intialize function related to your .so file?
    – Botje
    Nov 22 at 12:13










  • that enet_initialize is basically a native void. So it would need the so file (Which is a wrapper for ENet lib so I can use it on java) to run. Oh and, here's the class that contains all the native method pastebin.com/EEcbMB2f
    – DrOreo002 Gaming
    Nov 22 at 12:45












  • Possible duplicate of What is an undefined reference/unresolved external symbol error and how do I fix it?
    – Werner Henze
    Nov 23 at 15:05















up vote
-2
down vote

favorite












So basically I'm trying to use an .so file on java. I got this so file by compiling the o file using the ld command. This is also an wrapper for ENet library so I can use it inside java



Btw I use swig for wrapping the ENet code to java JNI code



Error code :



/usr/lib/jvm/java-8-openjdk-amd64/bin/java: symbol lookup error: /home/anom/Desktop/GrowtopiaServer/src/resources/libenet.so: undefined symbol: enet_initialize



I've managed to load the so file itself using System.loadLibrary, but I somehow got that error when trying to access the enetJNI class that is generated by swig



If you want to try if this is working on your side or not. You can take a look at Swig and Java example here http://www.swig.org/Doc1.3/Java.html#java_overview to build you will also need the .i file. You can get one from here https://pastebin.com/










share|improve this question
























  • How does it relate with c++?
    – Rhathin
    Nov 22 at 11:45










  • Ummm c++ would be related for the 'compiling' the o file then
    – DrOreo002 Gaming
    Nov 22 at 11:53










  • How is the enet_intialize function related to your .so file?
    – Botje
    Nov 22 at 12:13










  • that enet_initialize is basically a native void. So it would need the so file (Which is a wrapper for ENet lib so I can use it on java) to run. Oh and, here's the class that contains all the native method pastebin.com/EEcbMB2f
    – DrOreo002 Gaming
    Nov 22 at 12:45












  • Possible duplicate of What is an undefined reference/unresolved external symbol error and how do I fix it?
    – Werner Henze
    Nov 23 at 15:05













up vote
-2
down vote

favorite









up vote
-2
down vote

favorite











So basically I'm trying to use an .so file on java. I got this so file by compiling the o file using the ld command. This is also an wrapper for ENet library so I can use it inside java



Btw I use swig for wrapping the ENet code to java JNI code



Error code :



/usr/lib/jvm/java-8-openjdk-amd64/bin/java: symbol lookup error: /home/anom/Desktop/GrowtopiaServer/src/resources/libenet.so: undefined symbol: enet_initialize



I've managed to load the so file itself using System.loadLibrary, but I somehow got that error when trying to access the enetJNI class that is generated by swig



If you want to try if this is working on your side or not. You can take a look at Swig and Java example here http://www.swig.org/Doc1.3/Java.html#java_overview to build you will also need the .i file. You can get one from here https://pastebin.com/










share|improve this question















So basically I'm trying to use an .so file on java. I got this so file by compiling the o file using the ld command. This is also an wrapper for ENet library so I can use it inside java



Btw I use swig for wrapping the ENet code to java JNI code



Error code :



/usr/lib/jvm/java-8-openjdk-amd64/bin/java: symbol lookup error: /home/anom/Desktop/GrowtopiaServer/src/resources/libenet.so: undefined symbol: enet_initialize



I've managed to load the so file itself using System.loadLibrary, but I somehow got that error when trying to access the enetJNI class that is generated by swig



If you want to try if this is working on your side or not. You can take a look at Swig and Java example here http://www.swig.org/Doc1.3/Java.html#java_overview to build you will also need the .i file. You can get one from here https://pastebin.com/







java c++ swig






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 22 at 12:44

























asked Nov 22 at 11:43









DrOreo002 Gaming

84




84












  • How does it relate with c++?
    – Rhathin
    Nov 22 at 11:45










  • Ummm c++ would be related for the 'compiling' the o file then
    – DrOreo002 Gaming
    Nov 22 at 11:53










  • How is the enet_intialize function related to your .so file?
    – Botje
    Nov 22 at 12:13










  • that enet_initialize is basically a native void. So it would need the so file (Which is a wrapper for ENet lib so I can use it on java) to run. Oh and, here's the class that contains all the native method pastebin.com/EEcbMB2f
    – DrOreo002 Gaming
    Nov 22 at 12:45












  • Possible duplicate of What is an undefined reference/unresolved external symbol error and how do I fix it?
    – Werner Henze
    Nov 23 at 15:05


















  • How does it relate with c++?
    – Rhathin
    Nov 22 at 11:45










  • Ummm c++ would be related for the 'compiling' the o file then
    – DrOreo002 Gaming
    Nov 22 at 11:53










  • How is the enet_intialize function related to your .so file?
    – Botje
    Nov 22 at 12:13










  • that enet_initialize is basically a native void. So it would need the so file (Which is a wrapper for ENet lib so I can use it on java) to run. Oh and, here's the class that contains all the native method pastebin.com/EEcbMB2f
    – DrOreo002 Gaming
    Nov 22 at 12:45












  • Possible duplicate of What is an undefined reference/unresolved external symbol error and how do I fix it?
    – Werner Henze
    Nov 23 at 15:05
















How does it relate with c++?
– Rhathin
Nov 22 at 11:45




How does it relate with c++?
– Rhathin
Nov 22 at 11:45












Ummm c++ would be related for the 'compiling' the o file then
– DrOreo002 Gaming
Nov 22 at 11:53




Ummm c++ would be related for the 'compiling' the o file then
– DrOreo002 Gaming
Nov 22 at 11:53












How is the enet_intialize function related to your .so file?
– Botje
Nov 22 at 12:13




How is the enet_intialize function related to your .so file?
– Botje
Nov 22 at 12:13












that enet_initialize is basically a native void. So it would need the so file (Which is a wrapper for ENet lib so I can use it on java) to run. Oh and, here's the class that contains all the native method pastebin.com/EEcbMB2f
– DrOreo002 Gaming
Nov 22 at 12:45






that enet_initialize is basically a native void. So it would need the so file (Which is a wrapper for ENet lib so I can use it on java) to run. Oh and, here's the class that contains all the native method pastebin.com/EEcbMB2f
– DrOreo002 Gaming
Nov 22 at 12:45














Possible duplicate of What is an undefined reference/unresolved external symbol error and how do I fix it?
– Werner Henze
Nov 23 at 15:05




Possible duplicate of What is an undefined reference/unresolved external symbol error and how do I fix it?
– Werner Henze
Nov 23 at 15:05

















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