"This is the general, more flexible metafactory; a streamlined version is provided by altMetafactory(MethodHandles.Lookup, String, MethodType, Object...)." - the streamlined version is metaFactory, not altMetafactory.
JDK-8044819LambdaMetafactory.altMetafactory javadoc refers to wrong method
JDK-8048405LambdaMetafactory.altMetafactory javadoc refers to wrong method
JDK-8053664LambdaMetafactory.altMetafactory javadoc refers to wrong method