No POD found for Callback.pm. Time to read the source?
Callback.pm
To install PBJ::JNI, copy and paste the appropriate command in to your terminal.
cpanm
cpanm PBJ::JNI
CPAN shell
perl -MCPAN -e shell install PBJ::JNI
For more information on module installation, please visit the detailed CPAN module installation guide.