Refactor some code to use AutoCloseable / try-with-resources

[matthew16550]

No description provided.

[arnaudroques]

I have to rollback changes made on AFileZipEntry.java.

Otherwise, the following example does not work any more and raises some java.io.IOException: Stream closed.

@startuml
!import demo.zip
alice->bob : before include
!include MyService1/myMethod1.iuml
alice->bob : after include
@enduml

With demo.zip containing some MyService1/myMethod1.iuml file.

I think it's because we should not close the InputStream at https://github.com/plantuml/plantuml/blob/master/src/net/sourceforge/plantuml/AFileZipEntry.java#L71

I hope (!) the InputStream is closed further in the code and that there is no leak here. This probably means that some refactoring is also needed here :-)

Anyway, thanks for your contribution!

[matthew16550]

Oops yes my bad 🤦

[arnaudroques]

Oops yes my bad 🤦

Don't worry, this is not important.

This probably means that we have yet another a code smell here.

We can keep it this way right now, there is enough work in progress :-)