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I'm using a parser generator that creates somewhat ugly code. As a result my Eclipse project has several dozen warnings emanating from generated source files. I know I can use the @SuppressWarning annotation to suppress particular warnings in particular elements, but any annotations I add by hand will be lost when the parser generator runs again. Is there a way to configure Eclipse to suppress warnings for a particular file or directory?
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In Java, we can exclude Sonar checks using the built-in @SuppressWarnings annotation. This works exactly the same way as suppressing compiler warnings. All we have to do is specify the rule identifier, in this case java:S106.
If we don't want to fix the warning, then we can suppress it with the @SuppressWarnings annotation. This annotation allows us to say which kinds of warnings to ignore. While warning types can vary by compiler vendor, the two most common are deprecation and unchecked.
Starting with version 3.8 M6, Eclipse (to be exact: the JDT) has built-in functionality for this. It is configurable through a project's build path: Project properties > Java Build Path > Compiler > Source
Announced here: Eclipse 3.8 and 4.2 M6 - New and Noteworthy, called Selectively ignore errors/warnings from source folders. That's also where the screenshot is from. This is the new feature developed on the previously linked Bug 220928.
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