Generic-Class with java.nio.Buffer

Question

An API-call is defined for different Buffer-classes:

apicall(ByteBuffer buffer);
apicall(FloatBuffer buffer);
apicall(IntBuffer buffer);
apicall(LongBuffer buffer);
apicall(DoubleBuffer buffer);

I need to write some classes working with that, but instead of writing five classes I want to use a generic class.

MyClass<T extends Buffer> ...

The Problem with that is, that apicall() is not defined for every Buffer, i.e. not for CharBuffer.

myMethod(T buffer) {apicall(buffer);}

fails. My workaround is something like this:

if (buffer instanceof FloatBuffer) {
    apicall((FloatBuffer)buffer);
} else if (buffer instanceof ByteBuffer) {
    apicall((ByteBuffer)buffer);
} else ...

I don't feel well with this. My question is, if there is a better way to solve my problem.