@interface Foo { String value(); } @Foo(<error descr="Attribute value must be constant">"myclass: " + Bar.class</error>) class Bar {} @Foo("myclass: Bazz") class Bazz{} @Foo("myclass:" + "Bazz1") class Bazz1{} @Foo(Const.CONST + Const.CONST) class Bazz2{} @Foo(<error descr="Incompatible types. Found: 'java.lang.Class<FooBar>', required: 'java.lang.String'">FooBar.class</error>) class FooBar {} class Const { public static final String CONST = "const"; }