src/share/classes/com/sun/tools/javap/AttributeWriter.java

*** 398,413 ****
          println("MethodParameters:");
          indent(+1);
          println(header);
          for (MethodParameters_attribute.Entry entry :
                   attr.method_parameter_table) {
              String flagstr =
!                 (0 != (entry.flags & ACC_FINAL) ? " final" : "") +
!                 (0 != (entry.flags & ACC_SYNTHETIC) ? " synthetic" : "");
!             println(String.format(format,
!                                   constantWriter.stringValue(entry.name_index),
!                                   flagstr));
          }
          indent(-1);
          return null;
      }
  
--- 398,415 ----
          println("MethodParameters:");
          indent(+1);
          println(header);
          for (MethodParameters_attribute.Entry entry :
                   attr.method_parameter_table) {
+             String namestr =
+                 entry.name_index != 0 ?
+                 constantWriter.stringValue(entry.name_index) : "<no name>";
              String flagstr =
!                 (0 != (entry.flags & ACC_FINAL) ? "final " : "") +
!                 (0 != (entry.flags & ACC_MANDATED) ? "mandated " : "") +
!                 (0 != (entry.flags & ACC_SYNTHETIC) ? "synthetic" : "");
!             println(String.format(format, namestr, flagstr));
          }
          indent(-1);
          return null;
      }