If a repeatable annotation has TYPE_USE and FIELD as @Targets and it's put on a field, javac crashes with this assertion,

"java.lang.AssertionError: Can't annotate already annotated type: (@A :: java.lang.Integer); adding: @A"

sample and output below.

-steve

8<- - - Test.java - - - - - - - - - - - - - -
import java.lang.annotation.*;
import static java.lang.annotation.RetentionPolicy.*;
import static java.lang.annotation.ElementType.*;

// (repeating) type annotations at class level.
class Test {
Test(){}
@A Integer i1 = 0; // crash FIELD
// type usage in method body
@B @B String test() { return null;} // ok on METHOD
}

@Retention(CLASS)
@Target({TYPE_USE,FIELD})
@Repeatable( AC.class )
@interface A { }

@Retention(CLASS)
@Target({TYPE_USE,FIELD})
@interface AC { A[] value(); }

@Retention(CLASS)
@Target({TYPE_USE,METHOD})
@Repeatable( BC.class )
@interface B { }

@Retention(CLASS)
@Target({TYPE_USE,METHOD})
@interface BC { B[] value(); }

8<- - - compiler output - - - - - - - - - - - - - -

An exception has occurred in the compiler (1.8.0-ea). Please file a bug at the Java Developer Connection (http://java.sun.com/webapps/bugreport) after checking the Bug Parade for duplicates. Include your program and the following diagnostic in your report. Thank you.
java.lang.AssertionError: Can't annotate already annotated type: (@A :: java.lang.Integer); adding: @A
        at com.sun.tools.javac.util.Assert.error(Assert.java:133)
        at com.sun.tools.javac.util.Assert.check(Assert.java:94)
        at com.sun.tools.javac.code.Type$AnnotatedType.<init>(Type.java:1505)
        at com.sun.tools.javac.code.TypeAnnotations$TypeAnnotationPositions$1.visitAnnotatedType(TypeAnnotations.java:410)
        at com.sun.tools.javac.code.TypeAnnotations$TypeAnnotationPositions$1.visitAnnotatedType(TypeAnnotations.java:389)
        at com.sun.tools.javac.code.Type$AnnotatedType.accept(Type.java:1527)
        at com.sun.tools.javac.code.TypeAnnotations$TypeAnnotationPositions.typeWithAnnotations(TypeAnnotations.java:470)
        at com.sun.tools.javac.code.TypeAnnotations$TypeAnnotationPositions.typeWithAnnotations(TypeAnnotations.java:353)
        at com.sun.tools.javac.code.TypeAnnotations$TypeAnnotationPositions.separateAnnotationsKinds(TypeAnnotations.java:189)
        at com.sun.tools.javac.code.TypeAnnotations$TypeAnnotationPositions.visitVarDef(TypeAnnotations.java:917)
        at com.sun.tools.javac.tree.JCTree$JCVariableDecl.accept(JCTree.java:792)
        at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
        at com.sun.tools.javac.code.TypeAnnotations$TypeAnnotationPositions.scan(TypeAnnotations.java:135)
        at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:57)
        at com.sun.tools.javac.code.TypeAnnotations$TypeAnnotationPositions.visitClassDef(TypeAnnotations.java:842)
        at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:650)
        at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
        at com.sun.tools.javac.code.TypeAnnotations$TypeAnnotationPositions.scan(TypeAnnotations.java:135)
        at com.sun.tools.javac.code.TypeAnnotations.organizeTypeAnnotationsBodies(TypeAnnotations.java:102)
        at com.sun.tools.javac.comp.Attr.attribClassBody(Attr.java:4039)
        at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:3918)
        at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:3852)
        at com.sun.tools.javac.comp.Attr.attrib(Attr.java:3826)
        at com.sun.tools.javac.main.JavaCompiler.attribute(JavaCompiler.java:1254)
        at com.sun.tools.javac.main.JavaCompiler.compile2(JavaCompiler.java:907)
        at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:866)
        at com.sun.tools.javac.main.Main.compile(Main.java:506)
        at com.sun.tools.javac.main.Main.compile(Main.java:365)
        at com.sun.tools.javac.main.Main.compile(Main.java:354)
        at com.sun.tools.javac.main.Main.compile(Main.java:345)
        at com.sun.tools.javac.Main.compile(Main.java:76)
        at com.sun.tools.javac.Main.main(Main.java:61)