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class Test {
    void method1() {
        println 'In method1'
    }

    void method1(String foo) {
        println "In method1 with String param of $foo"
    }

    static method2(String foo) {

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def getRandomNumber() {
    randomInt = new Random().nextInt(11)
}

def buildCell() {
    """${getRandomNumber()} <br>
       + ${getRandomNumber()} <br>
      <hr width=40px>
    """

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def init = { servletContext ->
    if (["test", "ci", "functional"].contains(Environment.current.name)) {
        // bring some environments down to bare database. 20120609160926 is the base migration script's ID
        // limitation: if we add development to this list and run the app in IDEA, it orphans the java processes
        executeCommand ("${getMigrationCommand()} --env=${Environment.current.name} version 20120609160926", new File("./db"))
        executeCommand ("${getMigrationCommand()} --env=${Environment.current.name} up", new File("./db"))
    }
    
    // other init operations...
}

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package myapp

import org.apache.commons.logging.Log
import org.apache.commons.logging.LogFactory
import org.apache.log4j.MDC

class UsageTrackingFilters {
    private static final Log LOG = LogFactory.getLog('usagetracking')

    private static final String REQUEST_ID = "requestId"

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<%@ page defaultCodec="none" %>
<div class="form-group ${formGroupClass ?: ''} <g:if test="${invalid}">has-error</g:if>">
  <label class="control-label ${labelClass ?: ''}" for="${property}">${label} <%=required ? "*" : ""%></label>
  <input type="<%=type ?: "text" %>" name="${prefix ?: ''}${property}" id="${prefix ?: ''}${property}" value="${value}" <%=constraints.maxSize ? "maxlength=${constraints.maxSize}" : ""%> <%=readonly ? "readonly=readonly" : ""%> class="form-control <%= pageScope["class"] ?: '' %>" <%=placeholder ? "placeholder='$placeholder'" : ""%>/>
  <g:if test="${helpText}"><span class="help-block">${helpText}</span></g:if>
  <g:if test="${invalid}"><span class="help-block">${errors.join('<br>')}</span></g:if>
</div>

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def things = [ [a: 1], [a: 2] ]

things.collect { it.a } // returns [1, 2]
things*.a               // returns [1, 2]
things.a                // returns [1, 2]

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def things = null

things.collect { it.a }   // returns []
things*.a                 // returns null
things.a                  // throws a NullPointerException

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package com.foo.util

import groovy.util.logging.Log4j
import org.apache.tomcat.jdbc.pool.ConnectionPool
import org.codehaus.groovy.grails.commons.GrailsApplication

@Log4j
class TomcatDatasourceUtil {

    static void ensureCurrentDatasources(GrailsApplication application, List datasourceNames) {

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import groovy.json.JsonSlurper

dataSource {
    // most properties are directly set
    pooled = true
    // ...
    
    // the url is retrieved from etcd...make sure the etcd resource is properly protected
    def jsonSlurper = new JsonSlurper()
    def catalogUrlConfig = jsonSlurper.parseText(new URL("http://etcdlocation:2379/v2/keys/dataSource/url").text)

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package com.foo.config

import com.foog.util.TomcatDatasourceUtil
import grails.plugins.rest.client.RestBuilder
import groovy.json.JsonSlurper

/**
 * Application service to get and set values from a centralized remote configuration service.
 */
class RemoteConfigService {