This week's book giveaways are in the iOS and Features new in Java 8 forums. We're giving away four copies each of Barcodes with iOS: Bringing together the digital and physical worlds and Core Java for the Impatient and have the authors on-line! See this thread and this one for details.
JasperManager method fillReport is overridden and can take as the first parameter, a String Object (Which you are using), an InputStream or a JasperReport object.
Using the String method requires the report template to be on the file system. When you do your deployment, you need to create report directory on the C drive of the target machine and put a copy of reportInvestment.jasper there.
A better way to do this to make deployments easier is to include /reports/reportInvestment.jasper in your Jar file and change your code to :