删除编译错误

2024-04-30 12:20:08 -04:00
parent f857c68a7c
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+## JEE 7
+
+This module contains articles about JEE 7.
+
+### Relevant Articles:
+- [Scheduling in Jakarta EE](https://www.baeldung.com/scheduling-in-java-enterprise-edition)
+- [JSON Processing in Java EE 7](https://www.baeldung.com/jee7-json)
+- [Converters, Listeners and Validators in Java EE 7](https://www.baeldung.com/java-ee7-converter-listener-validator)
+- [Introduction to JAX-WS](https://www.baeldung.com/jax-ws)
+- [A Guide to Java EE Web-Related Annotations](https://www.baeldung.com/javaee-web-annotations)
+- [Introduction to Testing with Arquillian](https://www.baeldung.com/arquillian)
+- [Java EE 7 Batch Processing](https://www.baeldung.com/java-ee-7-batch-processing)
+- [The Difference Between CDI and EJB Singleton](https://www.baeldung.com/jee-cdi-vs-ejb-singleton)
+- [Invoking a SOAP Web Service in Java](https://www.baeldung.com/java-soap-web-service)
@@ -0,0 +1,129 @@
+
+package com.baeldung.soap.ws.client.generated;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlSchemaType;
+import javax.xml.bind.annotation.XmlType;
+
+/**
+ * <p>Java class for country complex type.
+ * 
+ * <p>The following schema fragment specifies the expected content contained within this class.
+ * 
+ * <pre>
+ * &lt;complexType name="country"&gt;
+ *   &lt;complexContent&gt;
+ *     &lt;restriction base="{http://www.w3.org/2001/XMLSchema}anyType"&gt;
+ *       &lt;sequence&gt;
+ *         &lt;element name="capital" type="{http://www.w3.org/2001/XMLSchema}string" minOccurs="0"/&gt;
+ *         &lt;element name="currency" type="{http://server.ws.soap.baeldung.com/}currency" minOccurs="0"/&gt;
+ *         &lt;element name="name" type="{http://www.w3.org/2001/XMLSchema}string" minOccurs="0"/&gt;
+ *         &lt;element name="population" type="{http://www.w3.org/2001/XMLSchema}int"/&gt;
+ *       &lt;/sequence&gt;
+ *     &lt;/restriction&gt;
+ *   &lt;/complexContent&gt;
+ * &lt;/complexType&gt;
+ * </pre>
+ * 
+ * 
+ */
+@XmlAccessorType(XmlAccessType.FIELD)
+@XmlType(name = "country", propOrder = { "capital", "currency", "name", "population" })
+public class Country {
+
+    protected String capital;
+    @XmlSchemaType(name = "string")
+    protected Currency currency;
+    protected String name;
+    protected int population;
+
+    /**
+     * Gets the value of the capital property.
+     * 
+     * @return
+     *     possible object is
+     *     {@link String }
+     *     
+     */
+    public String getCapital() {
+        return capital;
+    }
+
+    /**
+     * Sets the value of the capital property.
+     * 
+     * @param value
+     *     allowed object is
+     *     {@link String }
+     *     
+     */
+    public void setCapital(String value) {
+        this.capital = value;
+    }
+
+    /**
+     * Gets the value of the currency property.
+     * 
+     * @return
+     *     possible object is
+     *     {@link Currency }
+     *     
+     */
+    public Currency getCurrency() {
+        return currency;
+    }
+
+    /**
+     * Sets the value of the currency property.
+     * 
+     * @param value
+     *     allowed object is
+     *     {@link Currency }
+     *     
+     */
+    public void setCurrency(Currency value) {
+        this.currency = value;
+    }
+
+    /**
+     * Gets the value of the name property.
+     * 
+     * @return
+     *     possible object is
+     *     {@link String }
+     *     
+     */
+    public String getName() {
+        return name;
+    }
+
+    /**
+     * Sets the value of the name property.
+     * 
+     * @param value
+     *     allowed object is
+     *     {@link String }
+     *     
+     */
+    public void setName(String value) {
+        this.name = value;
+    }
+
+    /**
+     * Gets the value of the population property.
+     * 
+     */
+    public int getPopulation() {
+        return population;
+    }
+
+    /**
+     * Sets the value of the population property.
+     * 
+     */
+    public void setPopulation(int value) {
+        this.population = value;
+    }
+
+}
@@ -0,0 +1,34 @@
+
+package com.baeldung.soap.ws.client.generated;
+
+import javax.jws.WebMethod;
+import javax.jws.WebParam;
+import javax.jws.WebResult;
+import javax.jws.WebService;
+import javax.jws.soap.SOAPBinding;
+import javax.xml.bind.annotation.XmlSeeAlso;
+import javax.xml.ws.Action;
+
+/**
+ * This class was generated by the JAX-WS RI.
+ * JAX-WS RI 2.3.2
+ * Generated source version: 2.2
+ * 
+ */
+@WebService(name = "CountryService", targetNamespace = "http://server.ws.soap.baeldung.com/")
+@SOAPBinding(style = SOAPBinding.Style.RPC)
+@XmlSeeAlso({ ObjectFactory.class })
+public interface CountryService {
+
+    /**
+     * 
+     * @param arg0
+     * @return
+     *     returns com.baeldung.soap.ws.client.generated.Country
+     */
+    @WebMethod
+    @WebResult(partName = "return")
+    @Action(input = "http://server.ws.soap.baeldung.com/CountryService/findByNameRequest", output = "http://server.ws.soap.baeldung.com/CountryService/findByNameResponse")
+    public Country findByName(@WebParam(name = "arg0", partName = "arg0") String arg0);
+
+}
@@ -0,0 +1,91 @@
+
+package com.baeldung.soap.ws.client.generated;
+
+import java.net.MalformedURLException;
+import java.net.URL;
+import javax.xml.namespace.QName;
+import javax.xml.ws.Service;
+import javax.xml.ws.WebEndpoint;
+import javax.xml.ws.WebServiceClient;
+import javax.xml.ws.WebServiceException;
+import javax.xml.ws.WebServiceFeature;
+
+/**
+ * This class was generated by the JAX-WS RI.
+ * JAX-WS RI 2.2.9-b130926.1035
+ * Generated source version: 2.2
+ * 
+ */
+@WebServiceClient(name = "CountryServiceImplService", targetNamespace = "http://server.ws.soap.baeldung.com/", wsdlLocation = "http://localhost:8888/ws/country?wsdl")
+public class CountryServiceImplService extends Service {
+
+    private final static URL COUNTRYSERVICEIMPLSERVICE_WSDL_LOCATION;
+    private final static WebServiceException COUNTRYSERVICEIMPLSERVICE_EXCEPTION;
+    private final static QName COUNTRYSERVICEIMPLSERVICE_QNAME = new QName("http://server.ws.soap.baeldung.com/", "CountryServiceImplService");
+
+    static {
+        URL url = null;
+        WebServiceException e = null;
+        try {
+            url = new URL("http://localhost:8888/ws/country?wsdl");
+        } catch (MalformedURLException ex) {
+            e = new WebServiceException(ex);
+        }
+        COUNTRYSERVICEIMPLSERVICE_WSDL_LOCATION = url;
+        COUNTRYSERVICEIMPLSERVICE_EXCEPTION = e;
+    }
+
+    public CountryServiceImplService() {
+        super(__getWsdlLocation(), COUNTRYSERVICEIMPLSERVICE_QNAME);
+    }
+
+    public CountryServiceImplService(WebServiceFeature... features) {
+        super(__getWsdlLocation(), COUNTRYSERVICEIMPLSERVICE_QNAME, features);
+    }
+
+    public CountryServiceImplService(URL wsdlLocation) {
+        super(wsdlLocation, COUNTRYSERVICEIMPLSERVICE_QNAME);
+    }
+
+    public CountryServiceImplService(URL wsdlLocation, WebServiceFeature... features) {
+        super(wsdlLocation, COUNTRYSERVICEIMPLSERVICE_QNAME, features);
+    }
+
+    public CountryServiceImplService(URL wsdlLocation, QName serviceName) {
+        super(wsdlLocation, serviceName);
+    }
+
+    public CountryServiceImplService(URL wsdlLocation, QName serviceName, WebServiceFeature... features) {
+        super(wsdlLocation, serviceName, features);
+    }
+
+    /**
+     * 
+     * @return
+     *     returns CountryService
+     */
+    @WebEndpoint(name = "CountryServiceImplPort")
+    public CountryService getCountryServiceImplPort() {
+        return super.getPort(new QName("http://server.ws.soap.baeldung.com/", "CountryServiceImplPort"), CountryService.class);
+    }
+
+    /**
+     * 
+     * @param features
+     *     A list of {@link javax.xml.ws.WebServiceFeature} to configure on the proxy.  Supported features not in the <code>features</code> parameter will have their default values.
+     * @return
+     *     returns CountryService
+     */
+    @WebEndpoint(name = "CountryServiceImplPort")
+    public CountryService getCountryServiceImplPort(WebServiceFeature... features) {
+        return super.getPort(new QName("http://server.ws.soap.baeldung.com/", "CountryServiceImplPort"), CountryService.class, features);
+    }
+
+    private static URL __getWsdlLocation() {
+        if (COUNTRYSERVICEIMPLSERVICE_EXCEPTION != null) {
+            throw COUNTRYSERVICEIMPLSERVICE_EXCEPTION;
+        }
+        return COUNTRYSERVICEIMPLSERVICE_WSDL_LOCATION;
+    }
+
+}
@@ -0,0 +1,37 @@
+
+package com.baeldung.soap.ws.client.generated;
+
+import javax.xml.bind.annotation.XmlEnum;
+import javax.xml.bind.annotation.XmlType;
+
+/**
+ * <p>Java class for currency.
+ * 
+ * <p>The following schema fragment specifies the expected content contained within this class.
+ * <p>
+ * <pre>
+ * &lt;simpleType name="currency"&gt;
+ *   &lt;restriction base="{http://www.w3.org/2001/XMLSchema}string"&gt;
+ *     &lt;enumeration value="EUR"/&gt;
+ *     &lt;enumeration value="INR"/&gt;
+ *     &lt;enumeration value="USD"/&gt;
+ *   &lt;/restriction&gt;
+ * &lt;/simpleType&gt;
+ * </pre>
+ * 
+ */
+@XmlType(name = "currency")
+@XmlEnum
+public enum Currency {
+
+    EUR, INR, USD;
+
+    public String value() {
+        return name();
+    }
+
+    public static Currency fromValue(String v) {
+        return valueOf(v);
+    }
+
+}
@@ -0,0 +1,38 @@
+
+package com.baeldung.soap.ws.client.generated;
+
+import javax.xml.bind.annotation.XmlRegistry;
+
+/**
+ * This object contains factory methods for each 
+ * Java content interface and Java element interface 
+ * generated in the com.baeldung.soap.ws.client.generated package. 
+ * <p>An ObjectFactory allows you to programatically 
+ * construct new instances of the Java representation 
+ * for XML content. The Java representation of XML 
+ * content can consist of schema derived interfaces 
+ * and classes representing the binding of schema 
+ * type definitions, element declarations and model 
+ * groups.  Factory methods for each of these are 
+ * provided in this class.
+ * 
+ */
+@XmlRegistry
+public class ObjectFactory {
+
+    /**
+     * Create a new ObjectFactory that can be used to create new instances of schema derived classes for package: com.baeldung.soap.ws.client.generated
+     * 
+     */
+    public ObjectFactory() {
+    }
+
+    /**
+     * Create an instance of {@link Country }
+     * 
+     */
+    public Country createCountry() {
+        return new Country();
+    }
+
+}
@@ -0,0 +1,2 @@
+@javax.xml.bind.annotation.XmlSchema(namespace = "http://server.ws.soap.baeldung.com/", elementFormDefault = javax.xml.bind.annotation.XmlNsForm.QUALIFIED)
+package com.baeldung.soap.ws.client.generated;
@@ -0,0 +1,41 @@
+package com.baeldung.soap.ws.server;
+
+public class Country {
+    protected String name;
+    protected int population;
+    protected String capital;
+    protected Currency currency;
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public int getPopulation() {
+        return population;
+    }
+
+    public void setPopulation(int population) {
+        this.population = population;
+    }
+
+    public String getCapital() {
+        return capital;
+    }
+
+    public void setCapital(String capital) {
+        this.capital = capital;
+    }
+
+    public Currency getCurrency() {
+        return currency;
+    }
+
+    public void setCurrency(Currency currency) {
+        this.currency = currency;
+    }
+
+}
@@ -0,0 +1,43 @@
+package com.baeldung.soap.ws.server;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class CountryRepository {
+
+    private static final Map<String, Country> countries = new HashMap<>();
+
+    {
+        initData();
+    }
+
+    private final static void initData() {
+        Country usa = new Country();
+        usa.setName("USA");
+        usa.setCapital("Washington D.C.");
+        usa.setCurrency(Currency.USD);
+        usa.setPopulation(323947000);
+
+        countries.put(usa.getName(), usa);
+
+        Country india = new Country();
+        india.setName("India");
+        india.setCapital("New Delhi");
+        india.setCurrency(Currency.INR);
+        india.setPopulation(1295210000);
+
+        countries.put(india.getName(), india);
+
+        Country france = new Country();
+        france.setName("France");
+        france.setCapital("Paris");
+        france.setCurrency(Currency.EUR);
+        france.setPopulation(66710000);
+
+        countries.put(france.getName(), france);
+    }
+
+    public Country findCountry(String name) {
+        return countries.get(name);
+    }
+}
@@ -0,0 +1,15 @@
+package com.baeldung.soap.ws.server;
+
+import javax.jws.WebMethod;
+import javax.jws.WebService;
+import javax.jws.soap.SOAPBinding;
+import javax.jws.soap.SOAPBinding.Style;
+
+@WebService
+@SOAPBinding(style=Style.RPC)
+public interface CountryService {
+    
+    @WebMethod
+    Country findByName(String name);
+
+}
@@ -0,0 +1,15 @@
+package com.baeldung.soap.ws.server;
+
+import javax.jws.WebService;
+
+@WebService(endpointInterface = "com.baeldung.soap.ws.server.CountryService")
+public class CountryServiceImpl implements CountryService {
+
+    private CountryRepository countryRepository = new CountryRepository();
+
+    @Override
+    public Country findByName(String name) {
+        return countryRepository.findCountry(name);
+    }
+
+}
@@ -0,0 +1,19 @@
+package com.baeldung.soap.ws.server;
+
+import javax.xml.ws.Endpoint;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+
+public class CountryServicePublisher {
+    
+    private static final Logger logger = LoggerFactory.getLogger(CountryServicePublisher.class);
+    
+    public static void main(String[] args) {
+        Endpoint endpoint = Endpoint.create(new CountryServiceImpl());
+        endpoint.publish("http://localhost:8888/ws/country");
+        
+        logger.info("Country web service ready to consume requests!");
+    }
+}
@@ -0,0 +1,15 @@
+package com.baeldung.soap.ws.server;
+
+public enum Currency {
+
+    EUR, INR, USD;
+
+    public String value() {
+        return name();
+    }
+
+    public static Currency fromValue(String v) {
+        return valueOf(v);
+    }
+
+}
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?><!-- Published by JAX-WS RI (http://jax-ws.java.net). RI's version is JAX-WS RI 2.2.9-b130926.1035 svn-revision#5f6196f2b90e9460065a4c2f4e30e065b245e51e. -->
+<xs:schema xmlns:tns="http://server.ws.soap.baeldung.com/" xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" version="1.0"
+    targetNamespace="http://server.ws.soap.baeldung.com/">
+
+    <xs:complexType name="country">
+        <xs:sequence>
+            <xs:element name="capital" type="xs:string" minOccurs="0"></xs:element>
+            <xs:element name="currency" type="tns:currency" minOccurs="0"></xs:element>
+            <xs:element name="name" type="xs:string" minOccurs="0"></xs:element>
+            <xs:element name="population" type="xs:int"></xs:element>
+        </xs:sequence>
+    </xs:complexType>
+
+    <xs:simpleType name="currency">
+        <xs:restriction base="xs:string">
+            <xs:enumeration value="EUR"></xs:enumeration>
+            <xs:enumeration value="INR"></xs:enumeration>
+            <xs:enumeration value="USD"></xs:enumeration>
+        </xs:restriction>
+    </xs:simpleType>
+</xs:schema>
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration>
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
+            </pattern>
+        </encoder>
+    </appender>
+
+    <logger name="org.jboss.weld" level="WARN" />
+
+    <root level="INFO">
+        <appender-ref ref="STDOUT" />
+    </root>
+</configuration>
@@ -0,0 +1,33 @@
+package com.baeldung.batch.understanding;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import java.util.Properties;
+
+import javax.batch.operations.JobOperator;
+import javax.batch.runtime.BatchRuntime;
+import javax.batch.runtime.BatchStatus;
+import javax.batch.runtime.JobExecution;
+import javax.batch.runtime.StepExecution;
+
+import org.junit.jupiter.api.Test;
+
+class CustomCheckPointIntegrationTest {
+    @Test
+    public void givenChunk_whenCustomCheckPoint_thenCommitCountIsThree() throws Exception {
+        JobOperator jobOperator = BatchRuntime.getJobOperator();
+        Long executionId = jobOperator.start("customCheckPoint", new Properties());
+        JobExecution jobExecution = jobOperator.getJobExecution(executionId);
+        jobExecution = BatchTestHelper.keepTestAlive(jobExecution);
+        for (StepExecution stepExecution : jobOperator.getStepExecutions(executionId)) {
+            if (stepExecution.getStepName()
+                .equals("firstChunkStep")) {
+                jobOperator.getStepExecutions(executionId)
+                    .stream()
+                    .map(BatchTestHelper::getCommitCount)
+                    .forEach(count -> assertEquals(3L, count.longValue()));
+            }
+        }
+        assertEquals(jobExecution.getBatchStatus(), BatchStatus.COMPLETED);
+    }
+}
@@ -0,0 +1,76 @@
+package com.baeldung.batch.understanding;
+
+import static org.junit.jupiter.api.Assertions.assertArrayEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Properties;
+
+import javax.batch.operations.JobOperator;
+import javax.batch.runtime.BatchRuntime;
+import javax.batch.runtime.BatchStatus;
+import javax.batch.runtime.JobExecution;
+import javax.batch.runtime.StepExecution;
+
+import org.junit.jupiter.api.Test;
+
+class JobSequenceIntegrationTest {
+    @Test
+    public void givenTwoSteps_thenBatch_CompleteWithSuccess() throws Exception {
+        JobOperator jobOperator = BatchRuntime.getJobOperator();
+        Long executionId = jobOperator.start("simpleJobSequence", new Properties());
+        JobExecution jobExecution = jobOperator.getJobExecution(executionId);
+        jobExecution = BatchTestHelper.keepTestAlive(jobExecution);
+        assertEquals(2 , jobOperator.getStepExecutions(executionId).size());
+        assertEquals(jobExecution.getBatchStatus(), BatchStatus.COMPLETED);
+    }
+    
+    @Test
+    public void givenFlow_thenBatch_CompleteWithSuccess() throws Exception {
+        JobOperator jobOperator = BatchRuntime.getJobOperator();
+        Long executionId = jobOperator.start("flowJobSequence", new Properties());
+        JobExecution jobExecution = jobOperator.getJobExecution(executionId);
+        jobExecution = BatchTestHelper.keepTestAlive(jobExecution);
+        assertEquals(3 , jobOperator.getStepExecutions(executionId).size());
+        assertEquals(jobExecution.getBatchStatus(), BatchStatus.COMPLETED);
+    }
+    
+    @Test
+    public void givenDecider_thenBatch_CompleteWithSuccess() throws Exception {
+        JobOperator jobOperator = BatchRuntime.getJobOperator();
+        Long executionId = jobOperator.start("decideJobSequence", new Properties());
+        JobExecution jobExecution = jobOperator.getJobExecution(executionId);
+        jobExecution = BatchTestHelper.keepTestAlive(jobExecution);
+        List<StepExecution> stepExecutions = jobOperator.getStepExecutions(executionId);
+        List<String> executedSteps = new ArrayList<>();
+        for (StepExecution stepExecution : stepExecutions) {
+            executedSteps.add(stepExecution.getStepName());
+        }
+        assertEquals(2, jobOperator.getStepExecutions(executionId).size());
+        assertArrayEquals(new String[] { "firstBatchStepStep1", "firstBatchStepStep3" }, executedSteps.toArray());
+        assertEquals(jobExecution.getBatchStatus(), BatchStatus.COMPLETED);
+    }
+    
+    @Test
+    public void givenSplit_thenBatch_CompletesWithSuccess() throws Exception {
+        JobOperator jobOperator = BatchRuntime.getJobOperator();
+        Long executionId = jobOperator.start("splitJobSequence", new Properties());
+        JobExecution jobExecution = jobOperator.getJobExecution(executionId);
+        jobExecution = BatchTestHelper.keepTestAlive(jobExecution);
+        List<StepExecution> stepExecutions = jobOperator.getStepExecutions(executionId);
+        List<String> executedSteps = new ArrayList<>();
+        for (StepExecution stepExecution : stepExecutions) {
+            executedSteps.add(stepExecution.getStepName());
+        }
+        assertEquals(3, stepExecutions.size());
+        assertTrue(executedSteps.contains("splitJobSequenceStep1"));
+        assertTrue(executedSteps.contains("splitJobSequenceStep2"));
+        assertTrue(executedSteps.contains("splitJobSequenceStep3"));
+        assertTrue(executedSteps.get(0).equals("splitJobSequenceStep1") || executedSteps.get(0).equals("splitJobSequenceStep2"));
+        assertTrue(executedSteps.get(1).equals("splitJobSequenceStep1") || executedSteps.get(1).equals("splitJobSequenceStep2"));
+        assertTrue(executedSteps.get(2).equals("splitJobSequenceStep3"));
+        assertEquals(jobExecution.getBatchStatus(), BatchStatus.COMPLETED);
+    }
+}
@@ -0,0 +1,64 @@
+package com.baeldung.batch.understanding;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import java.util.Properties;
+
+import javax.batch.operations.JobOperator;
+import javax.batch.runtime.BatchRuntime;
+import javax.batch.runtime.BatchStatus;
+import javax.batch.runtime.JobExecution;
+
+import org.junit.jupiter.api.Test;
+
+class SimpleBatchLetIntegrationTest {
+    @Test
+    public void givenBatchLet_thenBatch_CompleteWithSuccess() throws Exception {
+        JobOperator jobOperator = BatchRuntime.getJobOperator();
+        Long executionId = jobOperator.start("simpleBatchLet", new Properties());
+        JobExecution jobExecution = jobOperator.getJobExecution(executionId);
+        jobExecution = BatchTestHelper.keepTestAlive(jobExecution);
+        assertEquals(jobExecution.getBatchStatus(), BatchStatus.COMPLETED);
+    }
+    
+    @Test
+    public void givenBatchLetProperty_thenBatch_CompleteWithSuccess() throws Exception {
+        JobOperator jobOperator = BatchRuntime.getJobOperator();
+        Long executionId = jobOperator.start("injectionSimpleBatchLet", new Properties());
+        JobExecution jobExecution = jobOperator.getJobExecution(executionId);
+        jobExecution = BatchTestHelper.keepTestAlive(jobExecution);
+        assertEquals(jobExecution.getBatchStatus(), BatchStatus.COMPLETED);
+    }
+    
+    @Test
+    public void givenBatchLetPartition_thenBatch_CompleteWithSuccess() throws Exception {
+        JobOperator jobOperator = BatchRuntime.getJobOperator();
+        Long executionId = jobOperator.start("partitionSimpleBatchLet", new Properties());
+        JobExecution jobExecution = jobOperator.getJobExecution(executionId);
+        jobExecution = BatchTestHelper.keepTestAlive(jobExecution);
+        assertEquals(jobExecution.getBatchStatus(), BatchStatus.COMPLETED);
+    }
+    
+    @Test
+    public void givenBatchLetStarted_whenStopped_thenBatchStopped() throws Exception {
+        JobOperator jobOperator = BatchRuntime.getJobOperator();
+        Long executionId = jobOperator.start("simpleBatchLet", new Properties());
+        JobExecution jobExecution = jobOperator.getJobExecution(executionId);
+        jobOperator.stop(executionId);
+        jobExecution = BatchTestHelper.keepTestStopped(jobExecution);
+        assertEquals(jobExecution.getBatchStatus(), BatchStatus.STOPPED);
+    }
+    
+    @Test
+    public void givenBatchLetStopped_whenRestarted_thenBatchCompletesSuccess() throws Exception {
+        JobOperator jobOperator = BatchRuntime.getJobOperator();
+        Long executionId = jobOperator.start("simpleBatchLet", new Properties());
+        JobExecution jobExecution = jobOperator.getJobExecution(executionId);
+        jobOperator.stop(executionId);
+        jobExecution = BatchTestHelper.keepTestStopped(jobExecution);
+        assertEquals(jobExecution.getBatchStatus(), BatchStatus.STOPPED);
+        executionId = jobOperator.restart(jobExecution.getExecutionId(), new Properties());
+        jobExecution = BatchTestHelper.keepTestAlive(jobOperator.getJobExecution(executionId));
+        assertEquals(jobExecution.getBatchStatus(), BatchStatus.COMPLETED);
+    }
+}
@@ -0,0 +1,68 @@
+package com.baeldung.batch.understanding;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import java.util.List;
+import java.util.Map;
+import java.util.Properties;
+
+import javax.batch.operations.JobOperator;
+import javax.batch.runtime.BatchRuntime;
+import javax.batch.runtime.BatchStatus;
+import javax.batch.runtime.JobExecution;
+import javax.batch.runtime.Metric;
+import javax.batch.runtime.StepExecution;
+
+import org.junit.jupiter.api.Test;
+
+class SimpleChunkIntegrationTest {
+    @Test
+    public void givenChunk_thenBatch_CompletesWithSucess() throws Exception {
+        JobOperator jobOperator = BatchRuntime.getJobOperator();
+        Long executionId = jobOperator.start("simpleChunk", new Properties());
+        JobExecution jobExecution = jobOperator.getJobExecution(executionId);
+        jobExecution = BatchTestHelper.keepTestAlive(jobExecution);
+        List<StepExecution> stepExecutions = jobOperator.getStepExecutions(executionId);
+        for (StepExecution stepExecution : stepExecutions) {
+            if (stepExecution.getStepName()
+                .equals("firstChunkStep")) {
+                Map<Metric.MetricType, Long> metricsMap = BatchTestHelper.getMetricsMap(stepExecution.getMetrics());
+                assertEquals(10L, metricsMap.get(Metric.MetricType.READ_COUNT)
+                    .longValue());
+                assertEquals(10L / 2L, metricsMap.get(Metric.MetricType.WRITE_COUNT)
+                    .longValue());
+                assertEquals(10L / 3 + (10L % 3 > 0 ? 1 : 0), metricsMap.get(Metric.MetricType.COMMIT_COUNT)
+                    .longValue());
+            }
+        }
+        assertEquals(jobExecution.getBatchStatus(), BatchStatus.COMPLETED);
+    }
+    
+    @Test
+    public void givenChunk__thenBatch_fetchInformation() throws Exception {
+        JobOperator jobOperator = BatchRuntime.getJobOperator();
+        Long executionId = jobOperator.start("simpleChunk", new Properties());
+        JobExecution jobExecution = jobOperator.getJobExecution(executionId);
+        jobExecution = BatchTestHelper.keepTestAlive(jobExecution);
+        // job name contains simpleBatchLet which is the name of the file
+        assertTrue(jobOperator.getJobNames().contains("simpleChunk"));
+        // job parameters are empty
+        assertTrue(jobOperator.getParameters(executionId).isEmpty());
+        // step execution information
+        List<StepExecution> stepExecutions = jobOperator.getStepExecutions(executionId);
+        assertEquals("firstChunkStep", stepExecutions.get(0).getStepName());
+        // finding out batch status
+        assertEquals(BatchStatus.COMPLETED, stepExecutions.get(0).getBatchStatus());
+        Map<Metric.MetricType, Long> metricTest = BatchTestHelper.getMetricsMap(stepExecutions.get(0).getMetrics());
+        assertEquals(10L, metricTest.get(Metric.MetricType.READ_COUNT).longValue());
+        assertEquals(5L, metricTest.get(Metric.MetricType.FILTER_COUNT).longValue());
+        assertEquals(4L, metricTest.get(Metric.MetricType.COMMIT_COUNT).longValue());
+        assertEquals(5L, metricTest.get(Metric.MetricType.WRITE_COUNT).longValue());
+        assertEquals(0L, metricTest.get(Metric.MetricType.READ_SKIP_COUNT).longValue());
+        assertEquals(0L, metricTest.get(Metric.MetricType.WRITE_SKIP_COUNT).longValue());
+        assertEquals(0L, metricTest.get(Metric.MetricType.PROCESS_SKIP_COUNT).longValue());
+        assertEquals(0L, metricTest.get(Metric.MetricType.ROLLBACK_COUNT).longValue());
+        assertEquals(jobExecution.getBatchStatus(), BatchStatus.COMPLETED);
+    }
+}
@@ -0,0 +1,45 @@
+package com.baeldung.batch.understanding;
+
+import static org.junit.Assert.assertEquals;
+
+import java.util.List;
+import java.util.Properties;
+
+import javax.batch.operations.JobOperator;
+import javax.batch.runtime.BatchRuntime;
+import javax.batch.runtime.BatchStatus;
+import javax.batch.runtime.JobExecution;
+import javax.batch.runtime.StepExecution;
+
+import org.junit.jupiter.api.Test;
+
+class SimpleErrorChunkIntegrationTest {
+
+    @Test
+    public void givenChunkError_thenBatch_CompletesWithFailed() throws Exception {
+        JobOperator jobOperator = BatchRuntime.getJobOperator();
+        Long executionId = jobOperator.start("simpleErrorChunk", new Properties());
+        JobExecution jobExecution = jobOperator.getJobExecution(executionId);
+        jobExecution = BatchTestHelper.keepTestFailed(jobExecution);
+        assertEquals(jobExecution.getBatchStatus(), BatchStatus.FAILED);
+    }
+
+    @Test
+    public void givenChunkError_thenErrorSkipped_CompletesWithSuccess() throws Exception {
+        JobOperator jobOperator = BatchRuntime.getJobOperator();
+        Long executionId = jobOperator.start("simpleErrorSkipChunk", new Properties());
+        JobExecution jobExecution = jobOperator.getJobExecution(executionId);
+        jobExecution = BatchTestHelper.keepTestAlive(jobExecution);
+        List<StepExecution> stepExecutions = jobOperator.getStepExecutions(executionId);
+        for (StepExecution stepExecution : stepExecutions) {
+            if (stepExecution.getStepName()
+                .equals("errorStep")) {
+                jobOperator.getStepExecutions(executionId)
+                .stream()
+                .map(BatchTestHelper::getProcessSkipCount)
+                .forEach(skipCount -> assertEquals(1L, skipCount.longValue()));
+            }
+        }
+        assertEquals(jobExecution.getBatchStatus(), BatchStatus.COMPLETED);
+    }
+}
@@ -0,0 +1,109 @@
+package com.baeldung.singleton;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.UUID;
+
+import javax.ejb.EJB;
+import javax.enterprise.context.spi.CreationalContext;
+import javax.enterprise.inject.spi.Bean;
+import javax.enterprise.inject.spi.BeanManager;
+import javax.enterprise.inject.spi.CDI;
+import javax.inject.Inject;
+
+import org.jboss.arquillian.container.test.api.Deployment;
+import org.jboss.arquillian.junit.Arquillian;
+import org.jboss.shrinkwrap.api.ShrinkWrap;
+import org.jboss.shrinkwrap.api.asset.EmptyAsset;
+import org.jboss.shrinkwrap.api.spec.JavaArchive;
+import org.junit.Before;
+import org.junit.FixMethodOrder;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.MethodSorters;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+@RunWith(Arquillian.class)
+@FixMethodOrder(MethodSorters.NAME_ASCENDING)
+public class CarServiceLiveTest {
+
+    public static final Logger LOG = LoggerFactory.getLogger(CarServiceLiveTest.class);
+
+    @Deployment
+    public static JavaArchive createDeployment() {
+        return ShrinkWrap.create(JavaArchive.class)
+            .addClasses(CarServiceBean.class, CarServiceSingleton.class, CarServiceEjbSingleton.class, Car.class)
+            .addAsResource("META-INF/persistence.xml")
+            .addAsManifestResource(EmptyAsset.INSTANCE, "beans.xml");
+    }
+
+    @Inject
+    private CarServiceBean carServiceBean;
+
+    @Inject
+    private CarServiceSingleton carServiceSingleton;
+
+    @EJB
+    private CarServiceEjbSingleton carServiceEjbSingleton;
+    
+    @Test
+    public void givenASingleton_whenGetBeanIsCalledTwice_thenTheSameInstanceIsReturned() {       
+        CarServiceSingleton one = getBean(CarServiceSingleton.class);
+        CarServiceSingleton two = getBean(CarServiceSingleton.class);
+        assertTrue(one == two);
+    }
+    
+    @Test
+    public void givenAPojo_whenGetBeanIsCalledTwice_thenDifferentInstancesAreReturned() {       
+        CarServiceBean one = getBean(CarServiceBean.class);
+        CarServiceBean two = getBean(CarServiceBean.class);
+        assertTrue(one != two);
+    }
+
+    @SuppressWarnings("unchecked")
+    private <T> T getBean(Class<T> beanClass) {
+        BeanManager bm = CDI.current().getBeanManager();
+        Bean<T> bean = (Bean<T>) bm.getBeans(beanClass).iterator().next();
+        CreationalContext<T> ctx = bm.createCreationalContext(bean);
+        return (T) bm.getReference(bean, beanClass, ctx);
+    }
+
+    @Test
+    public void givenCDI_whenConcurrentAccess_thenLockingIsNotProvided() {
+        for (int i = 0; i < 10; i++) {
+            new Thread(new Runnable() {
+                @Override
+                public void run() {
+                    String model = Double.toString(Math.round(Math.random() * 100));
+                    Car car = new Car("Speedster", model);
+                    int serviceQueue = carServiceSingleton.service(car);
+                    assertTrue(serviceQueue < 10);                     
+                }
+            }).start();
+        }
+        return;
+    }
+    
+    @Test
+    public void givenEJB_whenConcurrentAccess_thenLockingIsProvided() {
+        for (int i = 0; i < 10; i++) {
+            new Thread(new Runnable() {
+                @Override
+                public void run() {
+                    String model = Double.toString(Math.round(Math.random() * 100));
+                    Car car = new Car("Speedster", model);
+                    int serviceQueue = carServiceEjbSingleton.service(car);
+                    assertEquals(0, serviceQueue);
+                }
+            }).start();
+        }
+        return;
+    }
+
+}
@@ -0,0 +1,39 @@
+package com.baeldung.soap.ws.client;
+
+import static org.junit.Assert.assertEquals;
+
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import com.baeldung.soap.ws.client.generated.CountryService;
+import com.baeldung.soap.ws.client.generated.CountryServiceImplService;
+import com.baeldung.soap.ws.client.generated.Currency;
+
+//Ensure that com.baeldung.soap.ws.server.CountryServicePublisher is running before executing this test
+public class CountryClientLiveTest {
+
+    private static CountryService countryService;
+
+    @BeforeClass
+    public static void setup() {
+        CountryServiceImplService service = new CountryServiceImplService();
+        countryService = service.getCountryServiceImplPort();
+    }
+
+    @Test
+    public void givenCountryService_whenCountryIndia_thenCapitalIsNewDelhi() {
+        assertEquals("New Delhi", countryService.findByName("India").getCapital());
+    }
+
+    @Test
+    public void givenCountryService_whenCountryFrance_thenPopulationCorrect() {
+        assertEquals(66710000, countryService.findByName("France").getPopulation());
+    }
+
+    @Test
+    public void givenCountryService_whenCountryUSA_thenCurrencyUSD() {
+        assertEquals(Currency.USD, countryService.findByName("USA").getCurrency());
+    }
+
+
+}
@@ -0,0 +1,23 @@
+<arquillian xmlns="http://jboss.org/schema/arquillian" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation=" http://jboss.org/schema/arquillian http://jboss.org/schema/arquillian/arquillian_1_0.xsd">
+
+    <container qualifier="wildfly-managed" default="true">
+        <configuration>
+            <property name="jbossHome">target/wildfly-8.2.1.Final</property>
+            <property name="serverConfig">standalone.xml</property>
+            <property name="outputToConsole">true</property>
+            <property name="managementPort">9990</property>
+            <property name="javaVmArguments">-Djboss.http.port=8639</property>
+        </configuration>
+    </container>
+
+    <container qualifier="wildfly-remote">
+        <configuration>
+            <property name="managementAddress">127.0.0.1</property>
+            <property name="managementPort">9990</property>
+            <property name="username">admin</property>
+            <property name="password">pass</property>
+            <property name="allowConnectingToRunningServer">true</property>
+        </configuration>
+    </container>
+
+</arquillian>
@@ -0,0 +1 @@
+db-url=jdbc:h2:mem:jberet-repo;DB_CLOSE_DELAY=-1
				`@@ -0,0 +1 @@`
				`db-url=jdbc:h2:mem:jberet-repo;DB_CLOSE_DELAY=-1`