Merge remote-tracking branch 'baeldung/master' into BAEL-3841#declarative-caching-testing

This commit is contained in:
Adrian Maghear
2020-06-04 16:31:10 +02:00
121 changed files with 3634 additions and 704 deletions
@@ -12,3 +12,4 @@ This module contains articles about core Java features that have been introduced
- [Introduction to Java 9 StackWalking API](https://www.baeldung.com/java-9-stackwalking-api)
- [Java 9 Platform Logging API](https://www.baeldung.com/java-9-logging-api)
- [Java 9 Reactive Streams](https://www.baeldung.com/java-9-reactive-streams)
- [Multi-Release JAR Files with Maven](https://www.baeldung.com/maven-multi-release-jars)
@@ -28,8 +28,104 @@
<version>${junit.platform.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.awaitility</groupId>
<artifactId>awaitility</artifactId>
<version>${awaitility.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<profiles>
<profile>
<id>incubator-features</id>
<build>
<finalName>core-java-9-new-features</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>${maven-compiler-plugin.version}</version>
<configuration>
<source>${maven.compiler.source}</source>
<target>${maven.compiler.target}</target>
<compilerArgument>--add-modules=jdk.incubator.httpclient</compilerArgument>
</configuration>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<configuration>
<argLine>--add-modules=jdk.incubator.httpclient</argLine>
</configuration>
</plugin>
</plugins>
</build>
</profile>
<profile>
<id>mrjar-generation</id>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<executions>
<execution>
<id>compile-java-8</id>
<goals>
<goal>compile</goal>
</goals>
<configuration>
<source>1.8</source>
<target>1.8</target>
<compileSourceRoots>
<compileSourceRoot>${project.basedir}/src/main/java8</compileSourceRoot>
</compileSourceRoots>
</configuration>
</execution>
<execution>
<id>compile-java-9</id>
<phase>compile</phase>
<goals>
<goal>compile</goal>
</goals>
<configuration>
<release>9</release>
<compileSourceRoots>
<compileSourceRoot>${project.basedir}/src/main/java9</compileSourceRoot>
</compileSourceRoots>
<outputDirectory>${project.build.outputDirectory}/META-INF/versions/9</outputDirectory>
</configuration>
</execution>
<execution>
<id>default-testCompile</id>
<phase>test-compile</phase>
<goals>
<goal>testCompile</goal>
</goals>
<configuration>
<skip>true</skip>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>${maven-jar-plugin.version}</version>
<configuration>
<archive>
<manifestEntries>
<Multi-Release>true</Multi-Release>
</manifestEntries>
<manifest>
<mainClass>com.baeldung.multireleaseapp.App</mainClass>
</manifest>
</archive>
</configuration>
</plugin>
</plugins>
</build>
</profile>
</profiles>
<build>
<finalName>core-java-9-new-features</finalName>
<plugins>
@@ -56,8 +152,10 @@
<!-- testing -->
<assertj.version>3.10.0</assertj.version>
<junit.platform.version>1.2.0</junit.platform.version>
<awaitility.version>4.0.2</awaitility.version>
<maven.compiler.source>1.9</maven.compiler.source>
<maven.compiler.target>1.9</maven.compiler.target>
<maven-jar-plugin.version>3.2.0</maven-jar-plugin.version>
</properties>
</project>
@@ -0,0 +1,14 @@
package com.baeldung.multireleaseapp;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class App {
private static final Logger logger = LoggerFactory.getLogger(App.class);
public static void main(String[] args) {
logger.info(String.format("Running on %s", new DefaultVersion().version()));
}
}
@@ -0,0 +1,9 @@
package com.baeldung.multireleaseapp;
public class DefaultVersion implements Version {
@Override
public String version() {
return System.getProperty("java.version");
}
}
@@ -0,0 +1,5 @@
package com.baeldung.multireleaseapp;
interface Version {
public String version();
}
@@ -0,0 +1,9 @@
package com.baeldung.multireleaseapp;
public class DefaultVersion implements Version {
@Override
public String version() {
return Runtime.version().toString();
}
}
@@ -24,7 +24,7 @@ import static org.junit.Assert.assertThat;
/**
* Created by adam.
*/
public class HttpClientTest {
public class HttpClientIntegrationTest {
@Test
public void shouldReturnSampleDataContentWhenConnectViaSystemProxy() throws IOException, InterruptedException, URISyntaxException {
@@ -55,7 +55,7 @@ public class HttpClientTest {
.send(request, HttpResponse.BodyHandler.asString());
assertThat(response.statusCode(), equalTo(HttpURLConnection.HTTP_MOVED_PERM));
assertThat(response.body(), containsString("https://stackoverflow.com/"));
assertThat(response.body(), containsString(""));
}
@Test
@@ -22,7 +22,7 @@ import static org.junit.Assert.assertThat;
/**
* Created by adam.
*/
public class HttpRequestTest {
public class HttpRequestIntegrationTest {
@Test
public void shouldReturnStatusOKWhenSendGetRequest() throws IOException, InterruptedException, URISyntaxException {
@@ -18,7 +18,7 @@ import static org.junit.Assert.assertThat;
/**
* Created by adam.
*/
public class HttpResponseTest {
public class HttpResponseIntegrationTest {
@Test
public void shouldReturnStatusOKWhenSendGetRequest() throws IOException, InterruptedException, URISyntaxException {
@@ -5,10 +5,12 @@ import org.junit.Test;
import java.util.List;
import java.util.concurrent.SubmissionPublisher;
import java.util.concurrent.TimeUnit;
import static org.assertj.core.api.Java6Assertions.assertThat;
import static org.assertj.core.api.Assertions.assertThat;
import static org.awaitility.Awaitility.await;
public class ReactiveStreamsTest {
public class ReactiveStreamsUnitTest {
@Test
public void givenPublisher_whenSubscribeToIt_thenShouldConsumeAllElements() throws InterruptedException {
@@ -25,7 +27,7 @@ public class ReactiveStreamsTest {
//then
await().atMost(1000, TimeUnit.MILLISECONDS).until(
await().atMost(1000, TimeUnit.MILLISECONDS).untilAsserted(
() -> assertThat(subscriber.consumedElements).containsExactlyElementsOf(items)
);
}
@@ -46,7 +48,7 @@ public class ReactiveStreamsTest {
publisher.close();
//then
await().atMost(1000, TimeUnit.MILLISECONDS).until(
await().atMost(1000, TimeUnit.MILLISECONDS).untilAsserted(
() -> assertThat(subscriber.consumedElements).containsExactlyElementsOf(expectedResult)
);
}
@@ -66,7 +68,7 @@ public class ReactiveStreamsTest {
publisher.close();
//then
await().atMost(1000, TimeUnit.MILLISECONDS).until(
await().atMost(1000, TimeUnit.MILLISECONDS).untilAsserted(
() -> assertThat(subscriber.consumedElements).containsExactlyElementsOf(expected)
);
}
@@ -7,7 +7,7 @@ import java.lang.invoke.VarHandle;
import static org.assertj.core.api.Assertions.assertThat;
public class VariableHandlesTest {
public class VariableHandlesUnitTest {
public int publicTestVariable = 1;
private int privateTestVariable = 1;
@@ -20,22 +20,22 @@ public class VariableHandlesTest {
public void whenVariableHandleForPublicVariableIsCreated_ThenItIsInitializedProperly() throws NoSuchFieldException, IllegalAccessException {
VarHandle publicIntHandle = MethodHandles
.lookup()
.in(VariableHandlesTest.class)
.findVarHandle(VariableHandlesTest.class, "publicTestVariable", int.class);
.in(VariableHandlesUnitTest.class)
.findVarHandle(VariableHandlesUnitTest.class, "publicTestVariable", int.class);
assertThat(publicIntHandle.coordinateTypes().size() == 1);
assertThat(publicIntHandle.coordinateTypes().get(0) == VariableHandles.class);
assertThat(publicIntHandle.coordinateTypes().get(0) == VariableHandlesUnitTest.class);
}
@Test
public void whenVariableHandleForPrivateVariableIsCreated_ThenItIsInitializedProperly() throws NoSuchFieldException, IllegalAccessException {
VarHandle privateIntHandle = MethodHandles
.privateLookupIn(VariableHandlesTest.class, MethodHandles.lookup())
.findVarHandle(VariableHandlesTest.class, "privateTestVariable", int.class);
.privateLookupIn(VariableHandlesUnitTest.class, MethodHandles.lookup())
.findVarHandle(VariableHandlesUnitTest.class, "privateTestVariable", int.class);
assertThat(privateIntHandle.coordinateTypes().size() == 1);
assertThat(privateIntHandle.coordinateTypes().get(0) == VariableHandlesTest.class);
assertThat(privateIntHandle.coordinateTypes().get(0) == VariableHandlesUnitTest.class);
}
@@ -52,8 +52,8 @@ public class VariableHandlesTest {
public void givenVarHandle_whenGetIsInvoked_ThenValueOfVariableIsReturned() throws NoSuchFieldException, IllegalAccessException {
VarHandle publicIntHandle = MethodHandles
.lookup()
.in(VariableHandlesTest.class)
.findVarHandle(VariableHandlesTest.class, "publicTestVariable", int.class);
.in(VariableHandlesUnitTest.class)
.findVarHandle(VariableHandlesUnitTest.class, "publicTestVariable", int.class);
assertThat((int) publicIntHandle.get(this) == 1);
}
@@ -62,8 +62,8 @@ public class VariableHandlesTest {
public void givenVarHandle_whenSetIsInvoked_ThenValueOfVariableIsChanged() throws NoSuchFieldException, IllegalAccessException {
VarHandle publicIntHandle = MethodHandles
.lookup()
.in(VariableHandlesTest.class)
.findVarHandle(VariableHandlesTest.class, "variableToSet", int.class);
.in(VariableHandlesUnitTest.class)
.findVarHandle(VariableHandlesUnitTest.class, "variableToSet", int.class);
publicIntHandle.set(this, 15);
assertThat((int) publicIntHandle.get(this) == 15);
@@ -73,8 +73,8 @@ public class VariableHandlesTest {
public void givenVarHandle_whenCompareAndSetIsInvoked_ThenValueOfVariableIsChanged() throws NoSuchFieldException, IllegalAccessException {
VarHandle publicIntHandle = MethodHandles
.lookup()
.in(VariableHandlesTest.class)
.findVarHandle(VariableHandlesTest.class, "variableToCompareAndSet", int.class);
.in(VariableHandlesUnitTest.class)
.findVarHandle(VariableHandlesUnitTest.class, "variableToCompareAndSet", int.class);
publicIntHandle.compareAndSet(this, 1, 100);
assertThat((int) publicIntHandle.get(this) == 100);
@@ -84,8 +84,8 @@ public class VariableHandlesTest {
public void givenVarHandle_whenGetAndAddIsInvoked_ThenValueOfVariableIsChanged() throws NoSuchFieldException, IllegalAccessException {
VarHandle publicIntHandle = MethodHandles
.lookup()
.in(VariableHandlesTest.class)
.findVarHandle(VariableHandlesTest.class, "variableToGetAndAdd", int.class);
.in(VariableHandlesUnitTest.class)
.findVarHandle(VariableHandlesUnitTest.class, "variableToGetAndAdd", int.class);
int before = (int) publicIntHandle.getAndAdd(this, 200);
assertThat(before == 0);
@@ -96,8 +96,8 @@ public class VariableHandlesTest {
public void givenVarHandle_whenGetAndBitwiseOrIsInvoked_ThenValueOfVariableIsChanged() throws NoSuchFieldException, IllegalAccessException {
VarHandle publicIntHandle = MethodHandles
.lookup()
.in(VariableHandlesTest.class)
.findVarHandle(VariableHandlesTest.class, "variableToBitwiseOr", byte.class);
.in(VariableHandlesUnitTest.class)
.findVarHandle(VariableHandlesUnitTest.class, "variableToBitwiseOr", byte.class);
byte before = (byte) publicIntHandle.getAndBitwiseOr(this, (byte) 127);
assertThat(before == 0);
@@ -5,4 +5,5 @@ This module contains articles about core Java input/output(IO) conversions.
### Relevant Articles:
- [Java InputStream to String](https://www.baeldung.com/convert-input-stream-to-string)
- [Java – Write an InputStream to a File](https://www.baeldung.com/convert-input-stream-to-a-file)
- [Converting a BufferedReader to a JSONObject](https://www.baeldung.com/java-bufferedreader-to-jsonobject)
- More articles: [[<-- prev]](/core-java-modules/core-java-io-conversions)
@@ -0,0 +1,40 @@
package com.baeldung.error.oom;
import static org.hamcrest.CoreMatchers.equalTo;
import static org.hamcrest.CoreMatchers.is;
import static org.junit.Assert.assertThat;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
import java.util.stream.IntStream;
import org.junit.jupiter.api.Test;
public class ExecutorServiceUnitTest {
@Test
public void givenAnExecutorService_WhenMoreTasksSubmitted_ThenAdditionalTasksWait() {
// Given
int noOfThreads = 5;
ExecutorService executorService = Executors.newFixedThreadPool(noOfThreads);
Runnable runnableTask = () -> {
try {
TimeUnit.HOURS.sleep(1);
} catch (InterruptedException e) {
e.printStackTrace();
}
};
// When
IntStream.rangeClosed(1, 10)
.forEach(i -> executorService.submit(runnableTask));
// Then
assertThat(((ThreadPoolExecutor) executorService).getQueue()
.size(), is(equalTo(5)));
}
}
@@ -0,0 +1,20 @@
package com.baeldung.nullassertion
import org.junit.Test
import kotlin.test.assertEquals
class NotNullAssertionUnitTest {
@Test
fun givenNullableValue_WhenNotNull_ShouldExtractTheValue() {
val answer: String? = "42"
assertEquals(42, answer!!.toInt())
}
@Test(expected = KotlinNullPointerException::class)
fun givenNullableValue_WhenIsNull_ThenShouldThrow() {
val noAnswer: String? = null
noAnswer!!
}
}
@@ -14,6 +14,7 @@ import org.zalando.problem.Problem;
import org.zalando.problem.ProblemBuilder;
import org.zalando.problem.Status;
import org.zalando.problem.spring.web.advice.ProblemHandling;
import org.zalando.problem.spring.web.advice.security.SecurityAdviceTrait;
import org.zalando.problem.violations.ConstraintViolationProblem;
import javax.annotation.Nonnull;
@@ -28,7 +29,7 @@ import java.util.stream.Collectors;
* The error response follows RFC7807 - Problem Details for HTTP APIs (https://tools.ietf.org/html/rfc7807)
*/
@ControllerAdvice
public class ExceptionTranslator implements ProblemHandling {
public class ExceptionTranslator implements ProblemHandling, SecurityAdviceTrait {
/**
* Post-process the Problem payload to add the message key for the front-end if needed
@@ -14,6 +14,7 @@ import org.zalando.problem.Problem;
import org.zalando.problem.ProblemBuilder;
import org.zalando.problem.Status;
import org.zalando.problem.spring.web.advice.ProblemHandling;
import org.zalando.problem.spring.web.advice.security.SecurityAdviceTrait;
import org.zalando.problem.violations.ConstraintViolationProblem;
import javax.annotation.Nonnull;
@@ -28,7 +29,7 @@ import java.util.stream.Collectors;
* The error response follows RFC7807 - Problem Details for HTTP APIs (https://tools.ietf.org/html/rfc7807)
*/
@ControllerAdvice
public class ExceptionTranslator implements ProblemHandling {
public class ExceptionTranslator implements ProblemHandling, SecurityAdviceTrait {
/**
* Post-process the Problem payload to add the message key for the front-end if needed
@@ -14,6 +14,7 @@ import org.zalando.problem.Problem;
import org.zalando.problem.ProblemBuilder;
import org.zalando.problem.Status;
import org.zalando.problem.spring.web.advice.ProblemHandling;
import org.zalando.problem.spring.web.advice.security.SecurityAdviceTrait;
import org.zalando.problem.violations.ConstraintViolationProblem;
import javax.annotation.Nonnull;
@@ -28,7 +29,7 @@ import java.util.stream.Collectors;
* The error response follows RFC7807 - Problem Details for HTTP APIs (https://tools.ietf.org/html/rfc7807)
*/
@ControllerAdvice
public class ExceptionTranslator implements ProblemHandling {
public class ExceptionTranslator implements ProblemHandling, SecurityAdviceTrait {
/**
* Post-process the Problem payload to add the message key for the front-end if needed
+47 -1
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@@ -1,14 +1,20 @@
package com.baeldung;
import com.google.common.hash.HashFunction;
import com.google.common.hash.Hasher;
import com.google.common.hash.Hashing;
import org.openjdk.jmh.annotations.*;
import org.openjdk.jmh.infra.Blackhole;
import java.nio.charset.Charset;
import java.util.concurrent.TimeUnit;
public class BenchMark {
@State(Scope.Benchmark)
public static class Log {
public int x = 8;
}
@State(Scope.Benchmark)
public static class ExecutionPlan {
@@ -45,4 +51,44 @@ public class BenchMark {
// Do nothing
}
@Benchmark
@OutputTimeUnit(TimeUnit.NANOSECONDS)
@BenchmarkMode(Mode.AverageTime)
public void doNothing() {
}
@Benchmark
@OutputTimeUnit(TimeUnit.NANOSECONDS)
@BenchmarkMode(Mode.AverageTime)
public void objectCreation() {
new Object();
}
@Benchmark
@OutputTimeUnit(TimeUnit.NANOSECONDS)
@BenchmarkMode(Mode.AverageTime)
public Object pillarsOfCreation() {
return new Object();
}
@Benchmark
@OutputTimeUnit(TimeUnit.NANOSECONDS)
@BenchmarkMode(Mode.AverageTime)
public void blackHole(Blackhole blackhole) {
blackhole.consume(new Object());
}
@Benchmark
public double foldedLog() {
int x = 8;
return Math.log(x);
}
@Benchmark
public double log(Log input) {
return Math.log(input.x);
}
}
+1 -1
View File
@@ -211,7 +211,7 @@
<datanucleus-maven-plugin.version>5.0.2</datanucleus-maven-plugin.version>
<datanucleus-jdo-query.version>5.0.4</datanucleus-jdo-query.version>
<javax.jdo.version>3.2.0-m7</javax.jdo.version>
<HikariCP.version>2.7.2</HikariCP.version>
<HikariCP.version>3.4.5</HikariCP.version>
<ebean.version>11.22.4</ebean.version>
</properties>
+9
View File
@@ -0,0 +1,9 @@
*.class
# Folders #
/gensrc
/target
# Packaged files #
*.jar
/bin/
+8
View File
@@ -0,0 +1,8 @@
## Server
This module contains articles about server libraries.
### Relevant Articles:
- [HTTP/2 in Jetty](https://www.baeldung.com/jetty-http-2)
- More articles: [[<-- prev]](../libraries-server)
+77
View File
@@ -0,0 +1,77 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>libraries-server-2</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>libraries-server-2</name>
<packaging>war</packaging>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-modules</artifactId>
<version>1.0.0-SNAPSHOT</version>
</parent>
<dependencies>
<dependency>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-server</artifactId>
<version>${jetty.version}</version>
</dependency>
<dependency>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-servlet</artifactId>
<version>${jetty.version}</version>
</dependency>
<dependency>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-webapp</artifactId>
<version>${jetty.version}</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-maven-plugin</artifactId>
<version>${jetty.version}</version>
<configuration>
<stopPort>8888</stopPort>
<stopKey>quit</stopKey>
<jvmArgs>
-Xbootclasspath/p:${settings.localRepository}/org/mortbay/jetty/alpn/alpn-boot/${alpn.version}/alpn-boot-${alpn.version}.jar
</jvmArgs>
<jettyXml>${basedir}/src/main/config/jetty.xml</jettyXml>
<webApp>
<contextPath>/</contextPath>
</webApp>
</configuration>
<dependencies>
<dependency>
<groupId>org.eclipse.jetty.http2</groupId>
<artifactId>http2-server</artifactId>
<version>${jetty.version}</version>
</dependency>
<dependency>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-alpn-openjdk8-server</artifactId>
<version>${jetty.version}</version>
</dependency>
<dependency>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-servlets</artifactId>
<version>${jetty.version}</version>
</dependency>
</dependencies>
</plugin>
</plugins>
</build>
<properties>
<jetty.version>9.4.27.v20200227</jetty.version>
<alpn.version>8.1.11.v20170118</alpn.version>
</properties>
</project>
@@ -0,0 +1,13 @@
<?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>
<root level="INFO">
<appender-ref ref="STDOUT" />
</root>
</configuration>

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