Fix the issues shown in this link

https://sonar.onap.org/issues?myIssues=true&projectUuids=AV8WGSfM-08if2a6pIBQ&resolved=false

 

Use try-with-resources for handling the resources/streams to properly close them

https://www.securecoding.cert.org/confluence/x/MACfBg

Example:

try (BufferedReader br =
new BufferedReader(new FileReader(fileName)))

{ // no need to name intermediate resources if you don't want to return br.readLine(); }

catch (...) {}

 

Optimize try blocks