All values are permitted (unrecognized ones are ignored). The list of recognized ones is compiler specific.
In The Java Tutorials unchecked
and deprecation
are listed as the two warnings required by The Java Language Specification, therefore, they should be valid with all compilers:
Every compiler warning belongs to a category. The Java Language Specification lists two categories: deprecation and unchecked.
The specific sections inside The Java Language Specification where they are defined is not consistent across versions. In the Java SE 8 Specification unchecked
and deprecation
are listed as compiler warnings in sections 9.6.4.5. @SuppressWarnings and 9.6.4.6 @Deprecated, respectively.
For Sun's compiler, running javac -X
gives a list of all values recognized by that version. For 1.5.0_17, the list appears to be: