Question

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What are the worst practices you actually found in Java code?

Mine are:

• using instance variables in servlets (it’s not just bad practice but bug, actually)
• using Collection implementations like HashMap, and not using the appropriate interfaces
• using seemingly cryptic class names like SmsMaker (SmsFactory) or CommEnvironment (CommunicationContext)

Answer 1

I had to maintain java code, where most of the Exception handling was like:

catch( Exception e ) {}