java.lang.VerifyError on method that worked a minute ago

Question

Apologies in advance but I have never seen this error before and don\'t know what to include. I am using NetBeans and suddenly began getting this error:

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Answer 1

It is definitely a compiler issue: the bytecode generated has a different Binary Format.

To solve this: Right click on the project -> Properties -> Sources -> Source/Binary Format

Change it to whatever format is suitable to your code.