java - Method wrapper for dealing with Exceptions? -

i'm implementing iterator , in order deal exceptions i'm using following pattern: actual work done in private hasnextpriv() method whereas hasnext() method deals exceptions. reason doing way because don't want litter hasnextpriv() try-catch blocks.

@override public boolean hasnext() {     try {         return hasnextpriv();     } catch (xmlstreamexception e) {         e.printstacktrace();         try {             reader.close();         } catch (xmlstreamexception e1) {             e1.printstacktrace();         }     }     return false; } 

questions:

1. is there better way this?
2. what name private method hasnextpriv()?

another way handle exceptions extract each part throws exception in small pure function handles each exception. , construct final result composing functions.

optional<resource> open() {     try{          //...          return optional.of(resource);     } catch {          //....          return optional.empty();     } }  optional<value> read(resource resource) {     try{          //...          return optional.of(resource.value);     } catch {          //....          return optional.empty();     } }  boolean hasnext() {      open().flatmap(this::read).ispresent(); } 

there no need return optional everywhere. there dummy value in null object pattern

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another pattern wrap function execution in object produces either result or error value. in library javaslang looks like

return try.of(this::hasnextpriv)     .recover(x -> match(x).of(         case(instanceof(exception_1.class), /*handle exception*/),         case(instanceof(exception_2.class), ...)))     .getorelse(false); 

try object similar java 8 optional instead of holding present value or missing value try contains value of either success or failure.

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regarding naming hasnextpriv in case there specific domain of data structure. come more specific name hasmorenodes or notempty etc.