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Build a Interpreter and Compiler for Arithmetic Expressions using ANTLR3

Include operators +,-,* and / with usual mathematical precedence, brackets - “(“ and “)” 
and constants that are all integers 

- Build an ANTLR3 grammar for the expressions 
- Generate AST 
- Build an interpreter to evaluate expressions 
- Add a rule to check for "division by zero" 
- Build a compiler to Java bytecode (Bonus) 

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<dependency>
  <groupId>com.sourceclear.headlines</groupId>
  <artifactId>complete</artifactId>
  <version>0.1.6</version>    
</dependency>

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<dependency>
  <groupId>com.sourceclear.headlines</groupId>
  <artifactId>complete</artifactId>
  <version>0.1.4</version>    
</dependency>

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  /**
   * the command has been executed, so extract extract the needed information
   * from the application context.
   */
  public Object execute(ExecutionEvent event) throws ExecutionException {
    
    IWorkbenchWindow window = HandlerUtil.getActiveWorkbenchWindowChecked(event);

    ISelectionService service = window.getSelectionService();
    IStructuredSelection structured = (IStructuredSelection) service.getSelection();

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package interleavedexample;

import java.util.concurrent.Exchanger;
import java.util.logging.Logger;

/**
 *
 */
public class InterleavedRunnable implements Runnable {

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public interface ${name} {  
  
  ////////////////////////////////// Methods \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\  
 
}

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public class ${name} {
  
  ///////////////////////////// Class Attributes \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
  
  ////////////////////////////// Class Methods \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
  
  //////////////////////////////// Attributes \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
    
  /////////////////////////////// Constructors \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\  
  

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package com.mycompany

import org.springframework.security.core.context.SecurityContextHolder
import org.springframework.security.*
import org.springframework.web.filter.GenericFilterBean;
import org.springframework.beans.factory.*
import org.springframework.context.*
import javax.servlet.*
import javax.servlet.http.*

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package com.mycompany

import org.springframework.security.*
import org.springframework.security.core.*
import org.springframework.security.authentication.*
import org.springframework.security.core.userdetails.UsernameNotFoundException;

class ApiTokenAuthenticationProvider implements AuthenticationProvider {

  ///////////////////////////// Class Attributes \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\

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package com.mycompany

import org.springframework.security.*
import org.springframework.security.core.*

class ApiTokenAuthentication implements Authentication {

  ///////////////////////////// Class Attributes \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
  
  ////////////////////////////// Class Methods \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\