Collectors.joining is missing from bundle.d.ts but present in bundle.js

[dsyer]

JavaScript knows about Collectors.joining():

               Collectors.joining = function (delimiter, prefix, suffix) {
                    if (((delimiter != null && (delimiter.constructor != null && delimiter.constructor[
...
}
                    else
                        throw new Error('invalid overload');
                };

however it does not appear in the types bundle:

declare namespace java.util.stream {
    class Collectors {
        static throwingMerger<T>(): (p1: T, p2: T) => T;
        static toList<T>(): java.util.stream.Collector<T, any, java.util.List<T>>;
        static toSet<T>(): java.util.stream.Collector<T, any, java.util.Set<T>>;
        static toMap$java_util_function_Function$java_util_function_Function<T, K, U>(keyMapper: (p1: any) => any, valueMapper: (p1: any) => any): java.util.stream.Collector<T, any, java.util.Map<K, U>>;
        static toMap$java_util_function_Function$java_util_function_Function$java_util_function_BinaryOperator<T, K, U>(keyMapper: (p1: any) => any, valueMapper: (p1: any) => any, mergeFunction: (p1: U, p2: U) => U): java.util.stream.Collector<T, any, java.util.Map<K, U>>;
        static toMap$java_util_function_Function$java_util_function_Function$java_util_function_BinaryOperator$java_util_function_Supplier<T, K, U, M extends java.util.Map<K, U>>(keyMapper: (p1: any) => any, valueMapper: (p1: any) => any, mergeFunction: (p1: U, p2: U) => U, mapSupplier: () => M): java.util.stream.Collector<T, any, M>;
        static toMap<T, K, U, M extends java.util.Map<K, U> = any>(keyMapper?: any, valueMapper?: any, mergeFunction?: any, mapSupplier?: any): any;
        static mapMerger<K, V, M extends java.util.Map<K, V> = any>(mergeFunction: (p1: V, p2: V) => V): (p1: M, p2: M) => M;
    }
...
}

and consequently if you try to transpile code that uses Collectors.join() e.g.

public class Sweet {

	private static List<String> values = Arrays.asList("Hello", "World");
	
	public String hello() {
		return values.stream().collect(Collectors.joining(" "));
	}
}

then the transpiler barfs at build time:

[ERROR] transpilation failed
org.apache.maven.plugin.MojoFailureException: transpilation failed with 1 error(s) and 0 warning(s)

=========================================
TRANSPILATION ERRORS SUMMARY:
* /home/dsyer/dev/scratch/jsweet-demo/src/main/java/com/example/demo/Sweet.java(12,67)[ts] Property 'joining' does not exist on type 'typeof Collectors'.


=========================================
    at org.jsweet.AbstractJSweetMojo.transpile (AbstractJSweetMojo.java:701)
    at org.jsweet.JSweetMojo.execute (JSweetMojo.java:43)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137)