src/main/java/org/plumelib/bcelutil/StackMapUtils.java
@Pure
  protected final @Nullable Attribute get_local_variable_type_table_attribute(MethodGen mgen) {
    for (Attribute a : mgen.getCodeAttributes()) {
      if (is_local_variable_type_table(a)) {
        return a;
      }
    }
    return null;
  }
@Pure
  protected final @Nullable Attribute get_local_variable_type_table_attribute(MethodGen mgen) {
    for (Attribute a : mgen.getCodeAttributes()) {
      if (is_local_variable_type_table(a)) {
        return a;
      }
    }
    return null;
  }
Find the LocalVariableTypeTable attribute for a method. Return null if there isn't one.

@param mgen the method
@return the LocalVariableTypeTable attribute for the method (or null if not present)