While trying to create SAP Adapter on JDeveloper 12c, configuration error can be appeared.
SAP JCO Library Missing
ERROR:SAP JCO library is not accessible. Please see 'Oracle SOA Adapter User Guide' for SAP JCO installation instructions.
Step 1: Download sapjco3.dll, sapjco3.jar and sapidoc3.jar files
Step 2: Copy sapjco3.jar and sapidoc3.jar files into JDeveloper SOA plugins folder ($FMW_HOME$\soa\plugins\jdeveloper\integration\adapters\lib) and test with using command prompt (java -jar sapjco3.jar)
Step 3: Getting java.library.path error
Step 4: Copy sapjco3.dll file into System32 folder and test again
Step 5: And try to Create!