Setting Required Classpaths to Compile the Java Project 
To implement and compile the login module, you need the JAR files util.jar and security_api.jar of the AS Java.
To specify the classpath:
Select the project name. Open the context menu and choose .
Browse to the location of the sap.com~tc~bl~jkernel_util~impl.jar. In the AS Java file system, you can find this library by following the path /usr/sap/<SID>/JC<XX>/j2ee/cluster/bin/system
Select the JAR and choose Open.
Choose the again.
Browse to the location of the sap.com~tc~je~security_api~impl.jar. In the AS Java file system, you can find this library by following the path /usr/sap/<SID>/JC<XX>/j2ee/cluster/bin/interfaces/security_api.
Select the JAR file and choose Open.
To save the new classpath, choose OK.
Note
If you need to rebuild the project from the menu path, choose .
The required classpaths for the project are set.