Question on resolving generics

[Melinda Savoy]

I'm getting 2 warnings regarding generics that I cannot resolve. I'm running on Java 6 using Eclipse 3.2.2.

1st warning:

The argument of type String[] should explicitly be cast to Object[] for the invocation of the varargs method format(String, Object...) from type MessageFormat. It could alternatively be cast to Object for a varargs invocation

The warning refers to code in method writeExportLinks() (line 618):

String[] exportOptions = {buffer.toString()};
        write(MessageFormat.format(this.properties.getExportBanner(), exportOptions));

2nd warning:

Type safety: The method put(Object, Object) belongs to the raw type Map. References to generic type Map<K,V> should be parameterized

The warning refers to code in method getOpenTag() (line 632):

Map localAttributeMap = (Map) attributeMap.clone();
            localAttributeMap.put(TagConstants.ATTRIBUTE_ID, this.uid);

ANY help or direction would be greatly appreciated.

Regards.

[Bill Shirley]

I'm guessing

write(MessageFormat.format(this.properties.getExportBanner(), [B](Object)[/B]exportOptions));

is wanted because of the vararg declaration of the method allows
write(String)
or
write(String, Object)
or
write(String, Object, Object)
ad infinitum

also, the declaration of the Map variable should be generically parameterized:

Map[B]<String,String>[/B] localAttributeMap = attributeMap.clone();

(on the assumption the map is String->String)
if attributeMap is also correctly declared, the clone method will return the correct type.

[Melinda Savoy]

Bill,

Thanks for the reply. I'll give it a shot.

Regards.