public int getBootstrapMethodsReference() {
		return bootstrapMethodsReference & 0xffff;
	}
The value of the bootstrap_method_ref item must be a valid index into
the constant_pool table. The constant_pool entry at that index must be
a CONSTANT_MethodHandle_info structure.

Commentary: The reference_kind item of the CONSTANT_MethodHandle_info
structure should have the value 6 (REF_invokeStatic) or 8 (REF_newInvokeSpecial) 
or else invocation of the bootstrap method
handle during call site specifier resolution for an invokedynamic instruction will
complete abruptly.

@return a valid index into the constant_pool table
Ghidra/Processors/JVM/src/main/java/ghidra/javaclass/format/attributes/BootstrapMethods.java