A set of adaptors for types belonging to the Java language or Java SDK. Includes: - a set of functions for instantiating Java array types given a stream of values, for example, [[createJavaIntArray]], [[createJavaFloatArray]], [[createJavaByteArray]], [[createJavaBooleanArray]], [[createJavaObjectArray]], and [[createJavaStringArray]], - a set of functions for converting between Ceylon's [[Array]] class and Java array types, for example, [[javaIntArray]], [[javaFloatArray]], ...