public class Test {
    private static final String AAAA = "aaaaaa";

    private String str = "1";

    public static void main(String[] args) {
        str += AAAA + "AAAA";
    }
}

----------------------------------------------------

[
	["keyword", "public"],
	["keyword", "class"],
	["class-name", ["Test"]],
	["punctuation", "{"],

	["keyword", "private"],
	["keyword", "static"],
	["keyword", "final"],
	["class-name", ["String"]],
	["constant", "AAAA"],
	["operator", "="],
	["string", "\"aaaaaa\""],
	["punctuation", ";"],

	["keyword", "private"],
	["class-name", ["String"]],
	" str ",
	["operator", "="],
	["string", "\"1\""],
	["punctuation", ";"],

	["keyword", "public"],
	["keyword", "static"],
	["keyword", "void"],
	["function", "main"],
	["punctuation", "("],
	["class-name", ["String"]],
	["punctuation", "["],
	["punctuation", "]"],
	" args",
	["punctuation", ")"],
	["punctuation", "{"],

	"\r\n        str ",
	["operator", "+="],
	["constant", "AAAA"],
	["operator", "+"],
	["string", "\"AAAA\""],
	["punctuation", ";"],

	["punctuation", "}"],

	["punctuation", "}"]
]

----------------------------------------------------

Checks for all constants.
