Max number is smaller than 2000000000, Lines are 100000000.
After complie java file or rebuild project, execute class file with param :
# java -Xmx${MB}m ${MAIN_CLASS_NAME}
java -Xmx512m App
or fix :
# path for IntelliJ, mac os
vi /Applications/IntelliJ\ IDEA\ CE.app/Contents/bin/idea.vmoptions
check lines of output file
$ wc -l
100000000