Yeah Java is partially dynamically typed. I think we can safely conclude that all practical languages are hybrids where some of the type checking is done by the compiler and some of the type checking is deferred to the runtime.
Then when we call a language statically typed we mean most of the type checking is usually done statically. Dynamic type checking is the exception, not the rule.
Even in dynamically typed languages like Python, some of the type checking may be done by an optimizer in the compilation stage. The runtime type check guarding some operations may be removed, because the optimizer decides it knows the types of the values involved once and for all.
Then when we call a language statically typed we mean most of the type checking is usually done statically. Dynamic type checking is the exception, not the rule.
Even in dynamically typed languages like Python, some of the type checking may be done by an optimizer in the compilation stage. The runtime type check guarding some operations may be removed, because the optimizer decides it knows the types of the values involved once and for all.