Update July 2011: This list has been reviewed and
made current with the most recent Eclipse 3.7 release.
If you are a Java developer and use the new @SuppressWarnings annotation in
your code from time-to-time to suppress compiler warnings you, like me, have
wondered probably about a million times already just exactly
what are the supported valuesthat can be used with this
annotation.
The reason the list isn’t easy to find is because it’s compiler specific,
which means Sun may have a different set of supported values than say IBM, GCJ
or Apache Harmony.
Fortunately for us, the Eclipse folks have
documented the values they support (as of Eclipse
3.7), here they are for reference:
- all to suppress all warnings
- boxing to suppress warnings relative to boxing/unboxing
operations - cast to suppress warnings relative to cast
operations - dep-ann to suppress warnings relative to deprecated
annotation - deprecation to suppress warnings relative to
deprecation - fallthrough to suppress warnings relative to missing
breaks in switch statements - finally to suppress warnings relative to finally block
that don’t return - hiding to suppress warnings relative to locals that hide
variable - incomplete-switch to suppress warnings relative to
missing entries in a switch statement (enum case) - nls to suppress warnings relative to non-nls string
literals - null to suppress warnings relative to null analysis
- rawtypes to suppress warnings relative to un-specific
types when using generics on class params - restriction to suppress warnings relative to usage of
discouraged or forbidden references - serial to suppress warnings relative to missing
serialVersionUID field for a serializable class - static-access to suppress warnings relative to incorrect
static access - synthetic-access to suppress warnings relative to
unoptimized access from inner classes - unchecked to suppress warnings relative to unchecked
operations - unqualified-field-access to suppress warnings relative
to field access unqualified - unused to suppress warnings relative to unused code
TIP: For the folks that haven’t used @SuppressWarnings
before, the syntax looks like this:
@SuppressWarnings(“unused”)
and can be placed above almost any piece of code that is causing a compiler
warning to popup for your class.
Update #1: Thanks to Pierre for the addition of the
‘rawtypes’ argument and description.