Method adaptForVarArgs

java/lib/src/main/java/io/github/ccxt/Helpers.java:715–748

(Method m, Object[] args)

}

private static Object[] adaptForVarArgs(Method m, Object[] args) {
    if (!m.isVarArgs()) return args;

    Class<?>[] ptypes = m.getParameterTypes();
    int fixedCount = ptypes.length - 1;              // last is the vararg array param
    Class<?> varArrayType = ptypes[ptypes.length - 1]; // e.g. Object[]
    Class<?> componentType = varArrayType.getComponentType();

    // Build the final invocation array with exactly ptypes.length slots
    Object[] invokeArgs = new Object[ptypes.length];

    // Copy fixed arguments (or null if missing)
    for (int i = 0; i < fixedCount; i++) {
        invokeArgs[i] = (i < args.length) ? args[i] : null;
    }

    // If caller already provided an array for the varargs slot AND argument count matches,
    // keep it as-is (common case: args already has Object[]{..., new Object[]{price}})
    if (args.length == ptypes.length && args[fixedCount] != null && args[fixedCount].getClass().isArray()) {
        // (Optionally) you could also check assignability to varArrayType here.
        invokeArgs[fixedCount] = args[fixedCount];
        return invokeArgs;
    }

    // Otherwise, pack remaining args into the varargs array
    int varCount = Math.max(0, args.length - fixedCount);
    Object varArray = Array.newInstance(componentType, varCount);
    for (int j = 0; j < varCount; j++) {
        Array.set(varArray, j, args[fixedCount + j]);
    }

    invokeArgs[fixedCount] = varArray;
    return invokeArgs;
}

    public static Object callDynamicallyAsync(Object obj, Object methodName, Object[] args) {
        if (args == null) args = new Object[]{};