Description Samuel Martin 2018-05-18 15:56:03 EDT

Created attachment 274106 [details]
Minimal example, whole project

I get this error when trying to compile a file with an annotation that refers to a static final field made up of the concatenation of different Strings. It is an error because I am effectively using a compile-time constant (and javac does with it), and because, well, what is puzzling is that... changing other things such as a Javadoc, the annotated method name, etc. makes the error disappear

Description	Resource	Path	Location	Type
The value for annotation attribute Key.value must be a constant expression	MyConfig.java	/example/src/main/java	line 10	Java Problem

public interface MyConfig {

	/** 
	 * @see #configPrefix()
	 * @see #assetDuration()
	 */ // Change the reference to configPrefix from this Javadoc and the error disappears. Move this javadoc to another element and the error disappears too.
	static final String PROPS_PREFIX = "myproject";
	static final String PROPS_PREFIX_PROP = PROPS_PREFIX + ".prefix";
	
	@Key(PROPS_PREFIX_PROP) // Sometimes this line yields a compiler error...
	String configPrefix();
	
	@Key(PROPS_PREFIX_PROP) // But this line works..., even if we also mention this method from the javadoc above
	String assetDuration(); // Change this method name to "myDuration" and the error disappears
	
}

@interface Key {
	   String value();
}