jodd-core/src/main/java/jodd/util/ArraysUtil.java
@SuppressWarnings({"unchecked"})
	public static <T> T[] join(Class<T> componentType, T[][] arrays) {
		if (arrays.length == 1) {
			return arrays[0];
		}
		int length = 0;
		for (T[] array : arrays) {
			length += array.length;
		}
		T[] result = (T[]) Array.newInstance(componentType, length);

		length = 0;
		for (T[] array : arrays) {
			System.arraycopy(array, 0, result, length, array.length);
			length += array.length;
		}
		return result;
	}
@SuppressWarnings({"unchecked"})
	public static <T> T[] join(Class<T> componentType, T[][] arrays) {
		if (arrays.length == 1) {
			return arrays[0];
		}
		int length = 0;
		for (T[] array : arrays) {
			length += array.length;
		}
		T[] result = (T[]) Array.newInstance(componentType, length);

		length = 0;
		for (T[] array : arrays) {
			System.arraycopy(array, 0, result, length, array.length);
			length += array.length;
		}
		return result;
	}
@ SuppressWarnings ( { "unchecked" } ) public static < T > T [ ] join ( Class < T > componentType , T [ ] [ ] arrays ) { if ( arrays . length == 1 ) { return arrays [ 0 ] ; } int length = 0 ; for ( T [ ] array : arrays ) { length += array . length ; } T [ ] result = ( T [ ] ) Array . newInstance ( componentType , length ) ; length = 0 ; for ( T [ ] array : arrays ) { System . arraycopy ( array , 0 , result , length , array . length ) ; length += array . length ; } return result ; }
Joins arrays using provided component type.
Joins arrays using provided component type .