After a brief look at the NB-sourcecode, I found these in some of the java.hint -classes:
@Hint(category="bitwise_operations", suppressWarnings="IncompatibleBitwiseMaskOperation")
@Hint(category="initialization", suppressWarnings="LeakingThisInConstructor")
@Hint(category="logging", suppressWarnings={"NonConstantLogger"}) //NOI18N
@Hint(category="logging", suppressWarnings={"ClassWithMultipleLoggers"}) //NOI18N
@Hint(category="logging", suppressWarnings={"ClassWithoutLogger"}, enabled=false) //NOI18N
@Hint(category="code_maturity", suppressWarnings="UseOfObsoleteCollectionType")
@Hint(category="initialization", suppressWarnings="OverridableMethodCallInConstructor")
@Hint(category="bitwise_operations", suppressWarnings="PointlessBitwiseExpression")
@Hint(category="code_maturity", suppressWarnings="CallToThreadDumpStack")
@Hint(category="bitwise_operations", suppressWarnings="ShiftOutOfRange")
@Hint(category="initialization", suppressWarnings="StaticNonFinalUsedInInitialization")
@Hint(category="code_maturity", enabled = false, suppressWarnings="UseOfSystemOutOrSystemErr")
@Hint(category="code_maturity", suppressWarnings="CallToPrintStackTrace")
Apparently, not all IDE-hints that are displayed as warnings are made suppressable...
Don't know why though, 'cause the AbstractHint class wich many of them extends easily provides this ability...
These are just the suppress-names though, so to find the mapping to the names of the warnings they represent, a deeper dig in the source is needed.