code: package com.google.checkstyle.test.chapter5naming.rule51identifiernames;
  
  public class InputCatchParameterName {
      {
          try {
          } catch (Exception e) { // ok
          }
          try {
          } catch (Exception ex) { // ok
          }
          try {
          } catch (Error | Exception err) { // ok
          }
          try {
          } catch (Exception exception) { // ok
          }
          try {
          } catch (Exception exception1) { // ok
          }
          try {
          } catch (Exception noWorries) { // ok
          }
          try {
          } catch (Throwable t) { // ok
          }
          try {
              throw new InterruptedException("interruptedException");
          } catch (InterruptedException ie) { // ok
          }
          try {
          } catch (Exception ok) { // ok
              // appropriate to take no action here
          }
          try {
          } catch (Exception e1) { // ok
              try {
              } catch (Exception e2) { // ok
              }
          }
          try {
          } catch (Throwable t1) { // ok
              try {
              } catch (Throwable t2) { // ok
              }
          }
          try {
          } catch (Exception iException) { // warn
          }
          try {
          } catch (Exception ex_1) { // warn
          }
          try {
          } catch (Exception eX) { // warn
          }
          try {
          } catch (Exception eXX) { // warn
          }
          try {
          } catch (Exception x_y_z) { // warn
          }
          try {
          } catch (Exception Ex) { // warn
          }
      }
  }
  