code: protected void boxLocalVar(final Type type, final int slot, final boolean isSensitive) {
          visitVarInsn(type.getOpcode(ILOAD), slot);
          box(type, isSensitive);
      }
docs: Generate the instruction sequence needed to "box" the local variable
  if required.
  
  @param type
  the <code>Type</code> of the object in the specified local
  variable slot on the stack.
  @param slot
  the local variable slot to box.
  @param isSensitive
  indication that the variable is sensitive and should
  not be traced as is.