@SuppressWarnings
@SuppressWarnings 对批注的代码元素内部某些警告保持静默
形如:
@SuppressWarning("unused")
@SuppressWarning("unused","unchecked")
抑制警告关键字:
- all to suppress all warnings (抑制所有警告)
- boxing to suppress warnings relative to boxing/unboxing operations(抑制装箱、拆箱操作时候的警告)
- cast to suppress warnings relative to cast operations (抑制映射相关的警告)
- dep-ann to suppress warnings relative to deprecated annotation(抑制启用注释的警告)
- deprecation to suppress warnings relative to deprecation(抑制过期方法警告)
- fallthrough to suppress warnings relative to missing breaks in switch statements(抑制确在switch中缺失breaks的警告)
- finally to suppress warnings relative to finally block that don’t return (抑制finally模块没有返回的警告)
- 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)(忽略没有完整的switch语句)
- nls to suppress warnings relative to non-nls string literals(忽略非nls格式的字符)
- null to suppress warnings relative to null analysis(忽略对null的操作)
- rawtypes to suppress warnings relative to un-specific types when using generics on class params(使用generics时忽略没有指定相应的类型)
- 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(忽略在serializable类中没有声明serialVersionUID变量)
- static-access to suppress warnings relative to incorrect static access(抑制不正确的静态访问方式警告)
- synthetic-access to suppress warnings relative to unoptimized access from inner classes(抑制子类没有按最优方法访问内部类的警告)
- unchecked to suppress warnings relative to unchecked operations(抑制没有进行类型检查操作的警告)
- unqualified-field-access to suppress warnings relative to field access unqualified (抑制没有权限访问的域的警告)
- unused to suppress warnings relative to unused code (抑制没被使用过的代码的警告)