To install Java::JVM::Classfile::ConstantPoolEntry, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Java::JVM::Classfile::ConstantPoolEntry
CPAN shell
perl -MCPAN -e shell install Java::JVM::Classfile::ConstantPoolEntry
For more information on module installation, please visit the detailed CPAN module installation guide.