This commit is contained in:
Philippe 2020-06-09 21:35:29 -03:00
commit 21a471e283
453 changed files with 7679 additions and 1492 deletions

3
aws-app-sync/README.md Normal file
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@ -0,0 +1,3 @@
### Relevant Articles:
- [AWS AppSync With Spring Boot](https://www.baeldung.com/aws-appsync-spring)

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@ -4,19 +4,19 @@ import java.util.Objects;
public record Person (String name, String address) { public record Person (String name, String address) {
public static String UNKWOWN_ADDRESS = "Unknown"; public static String UNKNOWN_ADDRESS = "Unknown";
public static String UNNAMED = "Unnamed"; public static String UNNAMED = "Unnamed";
public Person { public Person {
Objects.requireNonNull(name); Objects.requireNonNull(name);
Objects.requireNonNull(address); Objects.requireNonNull(address);
} }
public Person(String name) { public Person(String name) {
this(name, UNKWOWN_ADDRESS); this(name, UNKNOWN_ADDRESS);
} }
public static Person unnamed(String address) { public static Person unnamed(String address) {
return new Person(UNNAMED, address); return new Person(UNNAMED, address);
} }
} }

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@ -134,7 +134,7 @@ public class PersonTest {
Person person = new Person(name); Person person = new Person(name);
assertEquals(name, person.name()); assertEquals(name, person.name());
assertEquals(Person.UNKWOWN_ADDRESS, person.address()); assertEquals(Person.UNKNOWN_ADDRESS, person.address());
} }
@Test @Test
@ -147,4 +147,4 @@ public class PersonTest {
assertEquals(Person.UNNAMED, person.name()); assertEquals(Person.UNNAMED, person.name());
assertEquals(address, person.address()); assertEquals(address, person.address());
} }
} }

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@ -8,12 +8,11 @@
<version>0.1.0-SNAPSHOT</version> <version>0.1.0-SNAPSHOT</version>
<name>core-java-8-2</name> <name>core-java-8-2</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>

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@ -4,16 +4,15 @@
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 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"> 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> <modelVersion>4.0.0</modelVersion>
<artifactId>core-java-8-datetime</artifactId> <artifactId>core-java-8-datetime-2</artifactId>
<version>${project.parent.version}</version> <version>${project.parent.version}</version>
<name>core-java-8-datetime</name> <name>core-java-8-datetime</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>
@ -42,7 +41,6 @@
</dependencies> </dependencies>
<build> <build>
<finalName>core-java-datetime-java8</finalName>
<resources> <resources>
<resource> <resource>
<directory>src/main/resources</directory> <directory>src/main/resources</directory>

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@ -8,12 +8,11 @@
<version>${project.parent.version}</version> <version>${project.parent.version}</version>
<name>core-java-8-datetime</name> <name>core-java-8-datetime</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>

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@ -8,12 +8,11 @@
<version>0.1.0-SNAPSHOT</version> <version>0.1.0-SNAPSHOT</version>
<name>core-java-8</name> <name>core-java-8</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>

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@ -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) - [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 Platform Logging API](https://www.baeldung.com/java-9-logging-api)
- [Java 9 Reactive Streams](https://www.baeldung.com/java-9-reactive-streams) - [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)

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@ -28,8 +28,104 @@
<version>${junit.platform.version}</version> <version>${junit.platform.version}</version>
<scope>test</scope> <scope>test</scope>
</dependency> </dependency>
<dependency>
<groupId>org.awaitility</groupId>
<artifactId>awaitility</artifactId>
<version>${awaitility.version}</version>
<scope>test</scope>
</dependency>
</dependencies> </dependencies>
<profiles>
<profile>
<id>incubator-features</id>
<build>
<finalName>core-java-9-new-features</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>${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> <build>
<finalName>core-java-9-new-features</finalName> <finalName>core-java-9-new-features</finalName>
<plugins> <plugins>
@ -56,8 +152,10 @@
<!-- testing --> <!-- testing -->
<assertj.version>3.10.0</assertj.version> <assertj.version>3.10.0</assertj.version>
<junit.platform.version>1.2.0</junit.platform.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.source>1.9</maven.compiler.source>
<maven.compiler.target>1.9</maven.compiler.target> <maven.compiler.target>1.9</maven.compiler.target>
<maven-jar-plugin.version>3.2.0</maven-jar-plugin.version>
</properties> </properties>
</project> </project>

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@ -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()));
}
}

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@ -0,0 +1,9 @@
package com.baeldung.multireleaseapp;
public class DefaultVersion implements Version {
@Override
public String version() {
return System.getProperty("java.version");
}
}

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@ -0,0 +1,5 @@
package com.baeldung.multireleaseapp;
interface Version {
public String version();
}

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@ -0,0 +1,9 @@
package com.baeldung.multireleaseapp;
public class DefaultVersion implements Version {
@Override
public String version() {
return Runtime.version().toString();
}
}

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@ -24,7 +24,7 @@ import static org.junit.Assert.assertThat;
/** /**
* Created by adam. * Created by adam.
*/ */
public class HttpClientTest { public class HttpClientIntegrationTest {
@Test @Test
public void shouldReturnSampleDataContentWhenConnectViaSystemProxy() throws IOException, InterruptedException, URISyntaxException { public void shouldReturnSampleDataContentWhenConnectViaSystemProxy() throws IOException, InterruptedException, URISyntaxException {
@ -55,7 +55,7 @@ public class HttpClientTest {
.send(request, HttpResponse.BodyHandler.asString()); .send(request, HttpResponse.BodyHandler.asString());
assertThat(response.statusCode(), equalTo(HttpURLConnection.HTTP_MOVED_PERM)); assertThat(response.statusCode(), equalTo(HttpURLConnection.HTTP_MOVED_PERM));
assertThat(response.body(), containsString("https://stackoverflow.com/")); assertThat(response.body(), containsString(""));
} }
@Test @Test

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@ -22,7 +22,7 @@ import static org.junit.Assert.assertThat;
/** /**
* Created by adam. * Created by adam.
*/ */
public class HttpRequestTest { public class HttpRequestIntegrationTest {
@Test @Test
public void shouldReturnStatusOKWhenSendGetRequest() throws IOException, InterruptedException, URISyntaxException { public void shouldReturnStatusOKWhenSendGetRequest() throws IOException, InterruptedException, URISyntaxException {

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@ -18,7 +18,7 @@ import static org.junit.Assert.assertThat;
/** /**
* Created by adam. * Created by adam.
*/ */
public class HttpResponseTest { public class HttpResponseIntegrationTest {
@Test @Test
public void shouldReturnStatusOKWhenSendGetRequest() throws IOException, InterruptedException, URISyntaxException { public void shouldReturnStatusOKWhenSendGetRequest() throws IOException, InterruptedException, URISyntaxException {

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@ -5,10 +5,12 @@ import org.junit.Test;
import java.util.List; import java.util.List;
import java.util.concurrent.SubmissionPublisher; 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 @Test
public void givenPublisher_whenSubscribeToIt_thenShouldConsumeAllElements() throws InterruptedException { public void givenPublisher_whenSubscribeToIt_thenShouldConsumeAllElements() throws InterruptedException {
@ -25,7 +27,7 @@ public class ReactiveStreamsTest {
//then //then
await().atMost(1000, TimeUnit.MILLISECONDS).until( await().atMost(1000, TimeUnit.MILLISECONDS).untilAsserted(
() -> assertThat(subscriber.consumedElements).containsExactlyElementsOf(items) () -> assertThat(subscriber.consumedElements).containsExactlyElementsOf(items)
); );
} }
@ -46,7 +48,7 @@ public class ReactiveStreamsTest {
publisher.close(); publisher.close();
//then //then
await().atMost(1000, TimeUnit.MILLISECONDS).until( await().atMost(1000, TimeUnit.MILLISECONDS).untilAsserted(
() -> assertThat(subscriber.consumedElements).containsExactlyElementsOf(expectedResult) () -> assertThat(subscriber.consumedElements).containsExactlyElementsOf(expectedResult)
); );
} }
@ -66,7 +68,7 @@ public class ReactiveStreamsTest {
publisher.close(); publisher.close();
//then //then
await().atMost(1000, TimeUnit.MILLISECONDS).until( await().atMost(1000, TimeUnit.MILLISECONDS).untilAsserted(
() -> assertThat(subscriber.consumedElements).containsExactlyElementsOf(expected) () -> assertThat(subscriber.consumedElements).containsExactlyElementsOf(expected)
); );
} }

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@ -1,106 +0,0 @@
package com.baeldung.java9.varhandles;
import org.junit.Test;
import java.lang.invoke.MethodHandles;
import java.lang.invoke.VarHandle;
import static org.assertj.core.api.Assertions.assertThat;
public class VariableHandlesTest {
public int publicTestVariable = 1;
private int privateTestVariable = 1;
public int variableToSet = 1;
public int variableToCompareAndSet = 1;
public int variableToGetAndAdd = 0;
public byte variableToBitwiseOr = 0;
@Test
public void whenVariableHandleForPublicVariableIsCreated_ThenItIsInitializedProperly() throws NoSuchFieldException, IllegalAccessException {
VarHandle publicIntHandle = MethodHandles
.lookup()
.in(VariableHandlesTest.class)
.findVarHandle(VariableHandlesTest.class, "publicTestVariable", int.class);
assertThat(publicIntHandle.coordinateTypes().size() == 1);
assertThat(publicIntHandle.coordinateTypes().get(0) == VariableHandles.class);
}
@Test
public void whenVariableHandleForPrivateVariableIsCreated_ThenItIsInitializedProperly() throws NoSuchFieldException, IllegalAccessException {
VarHandle privateIntHandle = MethodHandles
.privateLookupIn(VariableHandlesTest.class, MethodHandles.lookup())
.findVarHandle(VariableHandlesTest.class, "privateTestVariable", int.class);
assertThat(privateIntHandle.coordinateTypes().size() == 1);
assertThat(privateIntHandle.coordinateTypes().get(0) == VariableHandlesTest.class);
}
@Test
public void whenVariableHandleForArrayVariableIsCreated_ThenItIsInitializedProperly() throws NoSuchFieldException, IllegalAccessException {
VarHandle arrayVarHandle = MethodHandles
.arrayElementVarHandle(int[].class);
assertThat(arrayVarHandle.coordinateTypes().size() == 2);
assertThat(arrayVarHandle.coordinateTypes().get(0) == int[].class);
}
@Test
public void givenVarHandle_whenGetIsInvoked_ThenValueOfVariableIsReturned() throws NoSuchFieldException, IllegalAccessException {
VarHandle publicIntHandle = MethodHandles
.lookup()
.in(VariableHandlesTest.class)
.findVarHandle(VariableHandlesTest.class, "publicTestVariable", int.class);
assertThat((int) publicIntHandle.get(this) == 1);
}
@Test
public void givenVarHandle_whenSetIsInvoked_ThenValueOfVariableIsChanged() throws NoSuchFieldException, IllegalAccessException {
VarHandle publicIntHandle = MethodHandles
.lookup()
.in(VariableHandlesTest.class)
.findVarHandle(VariableHandlesTest.class, "variableToSet", int.class);
publicIntHandle.set(this, 15);
assertThat((int) publicIntHandle.get(this) == 15);
}
@Test
public void givenVarHandle_whenCompareAndSetIsInvoked_ThenValueOfVariableIsChanged() throws NoSuchFieldException, IllegalAccessException {
VarHandle publicIntHandle = MethodHandles
.lookup()
.in(VariableHandlesTest.class)
.findVarHandle(VariableHandlesTest.class, "variableToCompareAndSet", int.class);
publicIntHandle.compareAndSet(this, 1, 100);
assertThat((int) publicIntHandle.get(this) == 100);
}
@Test
public void givenVarHandle_whenGetAndAddIsInvoked_ThenValueOfVariableIsChanged() throws NoSuchFieldException, IllegalAccessException {
VarHandle publicIntHandle = MethodHandles
.lookup()
.in(VariableHandlesTest.class)
.findVarHandle(VariableHandlesTest.class, "variableToGetAndAdd", int.class);
int before = (int) publicIntHandle.getAndAdd(this, 200);
assertThat(before == 0);
assertThat((int) publicIntHandle.get(this) == 200);
}
@Test
public void givenVarHandle_whenGetAndBitwiseOrIsInvoked_ThenValueOfVariableIsChanged() throws NoSuchFieldException, IllegalAccessException {
VarHandle publicIntHandle = MethodHandles
.lookup()
.in(VariableHandlesTest.class)
.findVarHandle(VariableHandlesTest.class, "variableToBitwiseOr", byte.class);
byte before = (byte) publicIntHandle.getAndBitwiseOr(this, (byte) 127);
assertThat(before == 0);
assertThat(variableToBitwiseOr == 127);
}
}

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@ -0,0 +1,105 @@
package com.baeldung.java9.varhandles;
import org.junit.Test;
import java.lang.invoke.MethodHandles;
import java.lang.invoke.VarHandle;
import static org.junit.Assert.assertEquals;
public class VariableHandlesUnitTest {
public int publicTestVariable = 1;
private int privateTestVariable = 1;
public int variableToSet = 1;
public int variableToCompareAndSet = 1;
public int variableToGetAndAdd = 0;
public byte variableToBitwiseOr = 0;
@Test
public void whenVariableHandleForPublicVariableIsCreated_ThenItIsInitializedProperly() throws NoSuchFieldException, IllegalAccessException {
VarHandle PUBLIC_TEST_VARIABLE = MethodHandles
.lookup()
.in(VariableHandlesUnitTest.class)
.findVarHandle(VariableHandlesUnitTest.class, "publicTestVariable", int.class);
assertEquals(1, PUBLIC_TEST_VARIABLE.coordinateTypes().size());
assertEquals(VariableHandlesUnitTest.class, PUBLIC_TEST_VARIABLE.coordinateTypes().get(0));
}
@Test
public void whenVariableHandleForPrivateVariableIsCreated_ThenItIsInitializedProperly() throws NoSuchFieldException, IllegalAccessException {
VarHandle PRIVATE_TEST_VARIABLE = MethodHandles
.privateLookupIn(VariableHandlesUnitTest.class, MethodHandles.lookup())
.findVarHandle(VariableHandlesUnitTest.class, "privateTestVariable", int.class);
assertEquals(1, PRIVATE_TEST_VARIABLE.coordinateTypes().size());
assertEquals(VariableHandlesUnitTest.class, PRIVATE_TEST_VARIABLE.coordinateTypes().get(0));
}
@Test
public void whenVariableHandleForArrayVariableIsCreated_ThenItIsInitializedProperly() throws NoSuchFieldException, IllegalAccessException {
VarHandle arrayVarHandle = MethodHandles
.arrayElementVarHandle(int[].class);
assertEquals(2, arrayVarHandle.coordinateTypes().size());
assertEquals(int[].class, arrayVarHandle.coordinateTypes().get(0));
}
@Test
public void givenVarHandle_whenGetIsInvoked_ThenValueOfVariableIsReturned() throws NoSuchFieldException, IllegalAccessException {
VarHandle PUBLIC_TEST_VARIABLE = MethodHandles
.lookup()
.in(VariableHandlesUnitTest.class)
.findVarHandle(VariableHandlesUnitTest.class, "publicTestVariable", int.class);
assertEquals(1, (int) PUBLIC_TEST_VARIABLE.get(this));
}
@Test
public void givenVarHandle_whenSetIsInvoked_ThenValueOfVariableIsChanged() throws NoSuchFieldException, IllegalAccessException {
VarHandle VARIABLE_TO_SET = MethodHandles
.lookup()
.in(VariableHandlesUnitTest.class)
.findVarHandle(VariableHandlesUnitTest.class, "variableToSet", int.class);
VARIABLE_TO_SET.set(this, 15);
assertEquals(15, (int) VARIABLE_TO_SET.get(this));
}
@Test
public void givenVarHandle_whenCompareAndSetIsInvoked_ThenValueOfVariableIsChanged() throws NoSuchFieldException, IllegalAccessException {
VarHandle VARIABLE_TO_COMPARE_AND_SET = MethodHandles
.lookup()
.in(VariableHandlesUnitTest.class)
.findVarHandle(VariableHandlesUnitTest.class, "variableToCompareAndSet", int.class);
VARIABLE_TO_COMPARE_AND_SET.compareAndSet(this, 1, 100);
assertEquals(100, (int) VARIABLE_TO_COMPARE_AND_SET.get(this));
}
@Test
public void givenVarHandle_whenGetAndAddIsInvoked_ThenValueOfVariableIsChanged() throws NoSuchFieldException, IllegalAccessException {
VarHandle VARIABLE_TO_GET_AND_ADD = MethodHandles
.lookup()
.in(VariableHandlesUnitTest.class)
.findVarHandle(VariableHandlesUnitTest.class, "variableToGetAndAdd", int.class);
int before = (int) VARIABLE_TO_GET_AND_ADD.getAndAdd(this, 200);
assertEquals(0, before);
assertEquals(200, (int) VARIABLE_TO_GET_AND_ADD.get(this));
}
@Test
public void givenVarHandle_whenGetAndBitwiseOrIsInvoked_ThenValueOfVariableIsChanged() throws NoSuchFieldException, IllegalAccessException {
VarHandle VARIABLE_TO_BITWISE_OR = MethodHandles
.lookup()
.in(VariableHandlesUnitTest.class)
.findVarHandle(VariableHandlesUnitTest.class, "variableToBitwiseOr", byte.class);
byte before = (byte) VARIABLE_TO_BITWISE_OR.getAndBitwiseOr(this, (byte) 127);
assertEquals(0, before);
assertEquals(127, (byte) VARIABLE_TO_BITWISE_OR.get(this));
}
}

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@ -8,12 +8,11 @@
<version>0.1.0-SNAPSHOT</version> <version>0.1.0-SNAPSHOT</version>
<name>core-java-9-streams</name> <name>core-java-9-streams</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<build> <build>

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@ -10,10 +10,10 @@
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<build> <build>

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@ -5,7 +5,7 @@
<parent> <parent>
<artifactId>core-java-modules</artifactId> <artifactId>core-java-modules</artifactId>
<groupId>com.baeldung.core-java-modules</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<version>1.0.0-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
</parent> </parent>
<modelVersion>4.0.0</modelVersion> <modelVersion>4.0.0</modelVersion>

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@ -5,7 +5,7 @@
<parent> <parent>
<artifactId>core-java-modules</artifactId> <artifactId>core-java-modules</artifactId>
<groupId>com.baeldung.core-java-modules</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<version>1.0.0-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
</parent> </parent>
<modelVersion>4.0.0</modelVersion> <modelVersion>4.0.0</modelVersion>

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@ -5,7 +5,7 @@
<parent> <parent>
<artifactId>core-java-modules</artifactId> <artifactId>core-java-modules</artifactId>
<groupId>com.baeldung.core-java-modules</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<version>1.0.0-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
</parent> </parent>
<modelVersion>4.0.0</modelVersion> <modelVersion>4.0.0</modelVersion>

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@ -5,7 +5,7 @@
<parent> <parent>
<artifactId>core-java-modules</artifactId> <artifactId>core-java-modules</artifactId>
<groupId>com.baeldung.core-java-modules</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<version>1.0.0-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
</parent> </parent>
<modelVersion>4.0.0</modelVersion> <modelVersion>4.0.0</modelVersion>

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@ -5,7 +5,7 @@
<parent> <parent>
<artifactId>core-java-modules</artifactId> <artifactId>core-java-modules</artifactId>
<groupId>com.baeldung.core-java-modules</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<version>1.0.0-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
</parent> </parent>
<modelVersion>4.0.0</modelVersion> <modelVersion>4.0.0</modelVersion>

View File

@ -5,8 +5,8 @@
<parent> <parent>
<artifactId>core-java-modules</artifactId> <artifactId>core-java-modules</artifactId>
<groupId>com.baeldung.core-java-modules</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<version>1.0.0-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../pom.xml</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<modelVersion>4.0.0</modelVersion> <modelVersion>4.0.0</modelVersion>

View File

@ -7,12 +7,11 @@
<artifactId>core-java-collections-2</artifactId> <artifactId>core-java-collections-2</artifactId>
<name>core-java-collections-2</name> <name>core-java-collections-2</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>

View File

@ -9,3 +9,4 @@
- [Differences Between Collection.clear() and Collection.removeAll()](https://www.baeldung.com/java-collection-clear-vs-removeall) - [Differences Between Collection.clear() and Collection.removeAll()](https://www.baeldung.com/java-collection-clear-vs-removeall)
- [Performance of contains() in a HashSet vs ArrayList](https://www.baeldung.com/java-hashset-arraylist-contains-performance) - [Performance of contains() in a HashSet vs ArrayList](https://www.baeldung.com/java-hashset-arraylist-contains-performance)
- [Fail-Safe Iterator vs Fail-Fast Iterator](https://www.baeldung.com/java-fail-safe-vs-fail-fast-iterator) - [Fail-Safe Iterator vs Fail-Fast Iterator](https://www.baeldung.com/java-fail-safe-vs-fail-fast-iterator)
- [Quick Guide to the Java Stack](https://www.baeldung.com/java-stack)

View File

@ -8,12 +8,11 @@
<version>0.1.0-SNAPSHOT</version> <version>0.1.0-SNAPSHOT</version>
<name>core-java-collections-3</name> <name>core-java-collections-3</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>

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@ -8,12 +8,11 @@
<version>0.1.0-SNAPSHOT</version> <version>0.1.0-SNAPSHOT</version>
<name>core-java-collections-array-list</name> <name>core-java-collections-array-list</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>

View File

@ -8,12 +8,11 @@
<version>0.1.0-SNAPSHOT</version> <version>0.1.0-SNAPSHOT</version>
<name>core-java-collections-list-2</name> <name>core-java-collections-list-2</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>

View File

@ -8,12 +8,11 @@
<version>0.1.0-SNAPSHOT</version> <version>0.1.0-SNAPSHOT</version>
<name>core-java-collections-list-3</name> <name>core-java-collections-list-3</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>

View File

@ -8,12 +8,11 @@
<version>0.1.0-SNAPSHOT</version> <version>0.1.0-SNAPSHOT</version>
<name>core-java-collections-list</name> <name>core-java-collections-list</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>

View File

@ -7,12 +7,11 @@
<version>0.1.0-SNAPSHOT</version> <version>0.1.0-SNAPSHOT</version>
<name>core-java-collections-maps-2</name> <name>core-java-collections-maps-2</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>

View File

@ -7,12 +7,11 @@
<version>0.1.0-SNAPSHOT</version> <version>0.1.0-SNAPSHOT</version>
<name>core-java-collections-maps-3</name> <name>core-java-collections-maps-3</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>

View File

@ -6,12 +6,11 @@
<version>0.1.0-SNAPSHOT</version> <version>0.1.0-SNAPSHOT</version>
<name>core-java-collections-maps</name> <name>core-java-collections-maps</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent>
<parent> <groupId>com.baeldung.core-java-modules</groupId>
<groupId>com.baeldung</groupId> <artifactId>core-java-modules</artifactId>
<artifactId>parent-java</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>

View File

@ -8,12 +8,11 @@
<version>0.1.0-SNAPSHOT</version> <version>0.1.0-SNAPSHOT</version>
<name>core-java-collections-set</name> <name>core-java-collections-set</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>

View File

@ -8,12 +8,11 @@
<version>0.1.0-SNAPSHOT</version> <version>0.1.0-SNAPSHOT</version>
<name>core-java-collections</name> <name>core-java-collections</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>

View File

@ -8,12 +8,11 @@
<version>0.1.0-SNAPSHOT</version> <version>0.1.0-SNAPSHOT</version>
<name>core-java-concurrency-2</name> <name>core-java-concurrency-2</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>

View File

@ -8,12 +8,11 @@
<version>0.1.0-SNAPSHOT</version> <version>0.1.0-SNAPSHOT</version>
<name>core-java-concurrency-advanced-2</name> <name>core-java-concurrency-advanced-2</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>

View File

@ -9,12 +9,11 @@
<version>0.1.0-SNAPSHOT</version> <version>0.1.0-SNAPSHOT</version>
<name>core-java-concurrency-advanced-3</name> <name>core-java-concurrency-advanced-3</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>

View File

@ -0,0 +1,66 @@
package com.baeldung.abaproblem;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicInteger;
public class Account {
private AtomicInteger balance;
private AtomicInteger transactionCount;
private ThreadLocal<Integer> currentThreadCASFailureCount;
public Account() {
this.balance = new AtomicInteger(0);
this.transactionCount = new AtomicInteger(0);
this.currentThreadCASFailureCount = new ThreadLocal<>();
this.currentThreadCASFailureCount.set(0);
}
public int getBalance() {
return balance.get();
}
public int getTransactionCount() {
return transactionCount.get();
}
public int getCurrentThreadCASFailureCount() {
return currentThreadCASFailureCount.get();
}
public boolean withdraw(int amount) {
int current = getBalance();
maybeWait();
boolean result = balance.compareAndSet(current, current - amount);
if (result) {
transactionCount.incrementAndGet();
} else {
int currentCASFailureCount = currentThreadCASFailureCount.get();
currentThreadCASFailureCount.set(currentCASFailureCount + 1);
}
return result;
}
private void maybeWait() {
if ("thread1".equals(Thread.currentThread().getName())) {
try {
TimeUnit.SECONDS.sleep(2);
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
}
}
}
public boolean deposit(int amount) {
int current = balance.get();
boolean result = balance.compareAndSet(current, current + amount);
if (result) {
transactionCount.incrementAndGet();
} else {
int currentCASFailureCount = currentThreadCASFailureCount.get();
currentThreadCASFailureCount.set(currentCASFailureCount + 1);
}
return result;
}
}

View File

@ -9,13 +9,11 @@ public class StampedAccount {
private AtomicStampedReference<Integer> account = new AtomicStampedReference<>(0, 0); private AtomicStampedReference<Integer> account = new AtomicStampedReference<>(0, 0);
public int getBalance() { public int getBalance() {
return this.account.get(new int[1]); return account.getReference();
} }
public int getStamp() { public int getStamp() {
int[] stamps = new int[1]; return account.getStamp();
this.account.get(stamps);
return stamps[0];
} }
public boolean deposit(int funds) { public boolean deposit(int funds) {

View File

@ -0,0 +1,98 @@
package com.baeldung.abaproblem;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotEquals;
import static org.junit.jupiter.api.Assertions.assertTrue;
public class AccountUnitTest {
private Account account;
@BeforeEach
public void setUp() {
account = new Account();
}
@Test
public void zeroBalanceInitializationTest() {
assertEquals(0, account.getBalance());
assertEquals(0, account.getTransactionCount());
assertEquals(0, account.getCurrentThreadCASFailureCount());
}
@Test
public void depositTest() {
final int moneyToDeposit = 50;
assertTrue(account.deposit(moneyToDeposit));
assertEquals(moneyToDeposit, account.getBalance());
}
@Test
public void withdrawTest() throws InterruptedException {
final int defaultBalance = 50;
final int moneyToWithdraw = 20;
account.deposit(defaultBalance);
assertTrue(account.withdraw(moneyToWithdraw));
assertEquals(defaultBalance - moneyToWithdraw, account.getBalance());
}
@Test
public void abaProblemTest() throws InterruptedException {
final int defaultBalance = 50;
final int amountToWithdrawByThread1 = 20;
final int amountToWithdrawByThread2 = 10;
final int amountToDepositByThread2 = 10;
assertEquals(0, account.getTransactionCount());
assertEquals(0, account.getCurrentThreadCASFailureCount());
account.deposit(defaultBalance);
assertEquals(1, account.getTransactionCount());
Thread thread1 = new Thread(() -> {
// this will take longer due to the name of the thread
assertTrue(account.withdraw(amountToWithdrawByThread1));
// thread 1 fails to capture ABA problem
assertNotEquals(1, account.getCurrentThreadCASFailureCount());
}, "thread1");
Thread thread2 = new Thread(() -> {
assertTrue(account.deposit(amountToDepositByThread2));
assertEquals(defaultBalance + amountToDepositByThread2, account.getBalance());
// this will be fast due to the name of the thread
assertTrue(account.withdraw(amountToWithdrawByThread2));
// thread 1 didn't finish yet, so the original value will be in place for it
assertEquals(defaultBalance, account.getBalance());
assertEquals(0, account.getCurrentThreadCASFailureCount());
}, "thread2");
thread1.start();
thread2.start();
thread1.join();
thread2.join();
// compareAndSet operation succeeds for thread 1
assertEquals(defaultBalance - amountToWithdrawByThread1, account.getBalance());
//but there are other transactions
assertNotEquals(2, account.getTransactionCount());
// thread 2 did two modifications as well
assertEquals(4, account.getTransactionCount());
}
}

View File

@ -8,12 +8,11 @@
<version>0.1.0-SNAPSHOT</version> <version>0.1.0-SNAPSHOT</version>
<name>core-java-concurrency-advanced</name> <name>core-java-concurrency-advanced</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>

View File

@ -8,12 +8,11 @@
<version>0.1.0-SNAPSHOT</version> <version>0.1.0-SNAPSHOT</version>
<name>core-java-concurrency-basic-2</name> <name>core-java-concurrency-basic-2</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<build> <build>

View File

@ -8,12 +8,11 @@
<version>0.1.0-SNAPSHOT</version> <version>0.1.0-SNAPSHOT</version>
<name>core-java-concurrency-basic</name> <name>core-java-concurrency-basic</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>

View File

@ -8,12 +8,11 @@
<version>0.1.0-SNAPSHOT</version> <version>0.1.0-SNAPSHOT</version>
<name>core-java-concurrency-collections</name> <name>core-java-concurrency-collections</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>

View File

@ -0,0 +1,5 @@
#Core Java Console
[Read and Write User Input in Java](http://www.baeldung.com/java-console-input-output)
[Formatting with printf() in Java](https://www.baeldung.com/java-printstream-printf)
[ASCII Art in Java](http://www.baeldung.com/ascii-art-in-java)

View File

@ -0,0 +1,142 @@
<?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>core-java-console</artifactId>
<version>0.1.0-SNAPSHOT</version>
<name>core-java-console</name>
<packaging>jar</packaging>
<parent>
<groupId>com.baeldung.core-java-modules</groupId>
<artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>../</relativePath>
</parent>
<build>
<finalName>core-java-console</finalName>
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<executions>
<execution>
<id>copy-dependencies</id>
<phase>prepare-package</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<outputDirectory>${project.build.directory}/libs</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>${exec-maven-plugin.version}</version>
<configuration>
<executable>java</executable>
<mainClass>com.baeldung.outofmemoryerror.OutOfMemoryGCLimitExceed</mainClass>
<arguments>
<argument>-Xmx300m</argument>
<argument>-XX:+UseParallelGC</argument>
<argument>-classpath</argument>
<classpath />
<argument>com.baeldung.outofmemoryerror.OutOfMemoryGCLimitExceed</argument>
</arguments>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-javadoc-plugin</artifactId>
<version>${maven-javadoc-plugin.version}</version>
<configuration>
<source>${source.version}</source>
<target>${target.version}</target>
</configuration>
</plugin>
</plugins>
</build>
<profiles>
<profile>
<id>integration</id>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<executions>
<execution>
<phase>integration-test</phase>
<goals>
<goal>test</goal>
</goals>
<configuration>
<excludes>
<exclude>**/*ManualTest.java</exclude>
</excludes>
<includes>
<include>**/*IntegrationTest.java</include>
<include>**/*IntTest.java</include>
</includes>
</configuration>
</execution>
</executions>
<configuration>
<systemPropertyVariables>
<test.mime>json</test.mime>
</systemPropertyVariables>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>${exec-maven-plugin.version}</version>
<executions>
<execution>
<id>run-benchmarks</id>
<!-- <phase>integration-test</phase> -->
<phase>none</phase>
<goals>
<goal>exec</goal>
</goals>
<configuration>
<classpathScope>test</classpathScope>
<executable>java</executable>
<arguments>
<argument>-classpath</argument>
<classpath />
<argument>org.openjdk.jmh.Main</argument>
<argument>.*</argument>
</arguments>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>
</profiles>
<properties>
<maven-javadoc-plugin.version>3.0.0-M1</maven-javadoc-plugin.version>
<exec-maven-plugin.version>1.6.0</exec-maven-plugin.version>
<source.version>1.8</source.version>
<target.version>1.8</target.version>
</properties>
</project>

View File

@ -1,10 +1,9 @@
package com.baeldung.asciiart; package com.baeldung.asciiart;
import java.awt.Font; import com.baeldung.asciiart.AsciiArt.Settings;
import org.junit.Test; import org.junit.Test;
import com.baeldung.asciiart.AsciiArt.Settings; import java.awt.*;
public class AsciiArtIntegrationTest { public class AsciiArtIntegrationTest {
@ -16,5 +15,4 @@ public class AsciiArtIntegrationTest {
asciiArt.drawString(text, "*", settings); asciiArt.drawString(text, "*", settings);
} }
} }

View File

@ -8,12 +8,11 @@
<version>${project.parent.version}</version> <version>${project.parent.version}</version>
<name>core-java-date-operations-1</name> <name>core-java-date-operations-1</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>

View File

@ -8,4 +8,5 @@ This module contains articles about date operations in Java.
- [Converting Java Date to OffsetDateTime](https://www.baeldung.com/java-convert-date-to-offsetdatetime) - [Converting Java Date to OffsetDateTime](https://www.baeldung.com/java-convert-date-to-offsetdatetime)
- [How to Set the JVM Time Zone](https://www.baeldung.com/java-jvm-time-zone) - [How to Set the JVM Time Zone](https://www.baeldung.com/java-jvm-time-zone)
- [How to determine day of week by passing specific date in Java?](https://www.baeldung.com/java-get-day-of-week) - [How to determine day of week by passing specific date in Java?](https://www.baeldung.com/java-get-day-of-week)
- [Finding Leap Years in Java](https://www.baeldung.com/java-leap-year)
- [[<-- Prev]](/core-java-modules/core-java-date-operations-1) - [[<-- Prev]](/core-java-modules/core-java-date-operations-1)

View File

@ -8,12 +8,11 @@
<version>${project.parent.version}</version> <version>${project.parent.version}</version>
<name>core-java-date-operations-2</name> <name>core-java-date-operations-2</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>

View File

@ -8,12 +8,11 @@
<version>${project.parent.version}</version> <version>${project.parent.version}</version>
<name>core-java-datetime-conversion</name> <name>core-java-datetime-conversion</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>

View File

@ -8,12 +8,11 @@
<version>${project.parent.version}</version> <version>${project.parent.version}</version>
<name>core-java-datetime-string</name> <name>core-java-datetime-string</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>

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@ -7,12 +7,11 @@
<artifactId>core-java-exceptions-2</artifactId> <artifactId>core-java-exceptions-2</artifactId>
<name>core-java-exceptions-2</name> <name>core-java-exceptions-2</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>

View File

@ -9,12 +9,11 @@
<version>0.1.0-SNAPSHOT</version> <version>0.1.0-SNAPSHOT</version>
<name>core-java-exceptions</name> <name>core-java-exceptions</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>

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@ -8,12 +8,11 @@
<version>0.1.0-SNAPSHOT</version> <version>0.1.0-SNAPSHOT</version>
<name>core-java-function</name> <name>core-java-function</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>

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@ -8,12 +8,11 @@
<version>0.1.0-SNAPSHOT</version> <version>0.1.0-SNAPSHOT</version>
<name>core-java-io-2</name> <name>core-java-io-2</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>

View File

@ -8,12 +8,11 @@
<version>0.1.0-SNAPSHOT</version> <version>0.1.0-SNAPSHOT</version>
<name>core-java-io-apis</name> <name>core-java-io-apis</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>

View File

@ -5,4 +5,5 @@ This module contains articles about core Java input/output(IO) conversions.
### Relevant Articles: ### Relevant Articles:
- [Java InputStream to String](https://www.baeldung.com/convert-input-stream-to-string) - [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) - [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) - More articles: [[<-- prev]](/core-java-modules/core-java-io-conversions)

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@ -8,12 +8,11 @@
<version>0.1.0-SNAPSHOT</version> <version>0.1.0-SNAPSHOT</version>
<name>core-java-io-conversions-2</name> <name>core-java-io-conversions-2</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>
@ -22,6 +21,11 @@
<artifactId>commons-lang3</artifactId> <artifactId>commons-lang3</artifactId>
<version>${commons-lang3.version}</version> <version>${commons-lang3.version}</version>
</dependency> </dependency>
<dependency>
<groupId>org.json</groupId>
<artifactId>json</artifactId>
<version>20200518</version>
</dependency>
</dependencies> </dependencies>
<build> <build>

View File

@ -0,0 +1,48 @@
package com.baeldung.bufferedreadertojsonobject;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.nio.charset.StandardCharsets;
import org.json.JSONObject;
import org.json.JSONTokener;
import org.junit.Test;
public class JavaBufferedReaderToJSONObjectUnitTest {
@Test
public void givenValidJson_whenUsingBufferedReader_thenJSONTokenerConverts() {
byte[] b = "{ \"name\" : \"John\", \"age\" : 18 }".getBytes(StandardCharsets.UTF_8);
InputStream is = new ByteArrayInputStream(b);
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(is));
JSONTokener tokener = new JSONTokener(bufferedReader);
JSONObject json = new JSONObject(tokener);
assertNotNull(json);
assertEquals("John", json.get("name"));
assertEquals(18, json.get("age"));
}
@Test
public void givenValidJson_whenUsingString_thenJSONObjectConverts() throws IOException {
byte[] b = "{ \"name\" : \"John\", \"age\" : 18 }".getBytes(StandardCharsets.UTF_8);
InputStream is = new ByteArrayInputStream(b);
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(is));
StringBuilder sb = new StringBuilder();
String line;
while ((line = bufferedReader.readLine()) != null) {
sb.append(line);
}
JSONObject json = new JSONObject(sb.toString());
assertNotNull(json);
assertEquals("John", json.get("name"));
assertEquals(18, json.get("age"));
}
}

View File

@ -8,12 +8,11 @@
<version>0.1.0-SNAPSHOT</version> <version>0.1.0-SNAPSHOT</version>
<name>core-java-io-conversions</name> <name>core-java-io-conversions</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>

View File

@ -8,12 +8,11 @@
<version>0.1.0-SNAPSHOT</version> <version>0.1.0-SNAPSHOT</version>
<name>core-java-io</name> <name>core-java-io</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>

View File

@ -8,12 +8,11 @@
<version>0.1.0-SNAPSHOT</version> <version>0.1.0-SNAPSHOT</version>
<name>core-java-jar</name> <name>core-java-jar</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>

View File

@ -12,7 +12,7 @@
<parent> <parent>
<groupId>com.baeldung.core-java-modules</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>core-java-modules</artifactId> <artifactId>core-java-modules</artifactId>
<version>1.0.0-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
</parent> </parent>
<dependencies> <dependencies>

View File

@ -12,7 +12,7 @@
<parent> <parent>
<groupId>com.baeldung.core-java-modules</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>core-java-modules</artifactId> <artifactId>core-java-modules</artifactId>
<version>1.0.0-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
</parent> </parent>
<modules> <modules>

View File

@ -12,3 +12,4 @@ This module contains articles about working with the Java Virtual Machine (JVM).
- [Guide to System.gc()](https://www.baeldung.com/java-system-gc) - [Guide to System.gc()](https://www.baeldung.com/java-system-gc)
- [Runtime.getRuntime().halt() vs System.exit() in Java](https://www.baeldung.com/java-runtime-halt-vs-system-exit) - [Runtime.getRuntime().halt() vs System.exit() in Java](https://www.baeldung.com/java-runtime-halt-vs-system-exit)
- [Adding Shutdown Hooks for JVM Applications](https://www.baeldung.com/jvm-shutdown-hooks) - [Adding Shutdown Hooks for JVM Applications](https://www.baeldung.com/jvm-shutdown-hooks)
- [How to Get the Size of an Object in Java](http://www.baeldung.com/java-size-of-object)

View File

@ -10,10 +10,10 @@
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-modules</artifactId> <artifactId>core-java-modules</artifactId>
<version>1.0.0-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>

View File

@ -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)));
}
}

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@ -8,12 +8,11 @@
<version>0.1.0-SNAPSHOT</version> <version>0.1.0-SNAPSHOT</version>
<name>core-java-lambdas</name> <name>core-java-lambdas</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>

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@ -8,12 +8,11 @@
<version>0.1.0-SNAPSHOT</version> <version>0.1.0-SNAPSHOT</version>
<name>core-java-lang-2</name> <name>core-java-lang-2</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>

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@ -0,0 +1,36 @@
package com.baeldung.inttoenum;
import java.util.HashMap;
import java.util.Map;
public enum PizzaStatus {
ORDERED(5),
READY(2),
DELIVERED(0);
private int timeToDelivery;
PizzaStatus(int timeToDelivery) {
this.timeToDelivery = timeToDelivery;
}
public int getTimeToDelivery() {
return timeToDelivery;
}
private static Map<Integer, PizzaStatus> timeToDeliveryToEnumValuesMapping = new HashMap<>();
static {
PizzaStatus[] pizzaStatuses = PizzaStatus.values();
for (int pizzaStatusIndex = 0; pizzaStatusIndex < pizzaStatuses.length; pizzaStatusIndex++) {
timeToDeliveryToEnumValuesMapping.put(
pizzaStatuses[pizzaStatusIndex].getTimeToDelivery(),
pizzaStatuses[pizzaStatusIndex]
);
}
}
public static PizzaStatus castIntToEnum(int timeToDelivery) {
return timeToDeliveryToEnumValuesMapping.get(timeToDelivery);
}
}

View File

@ -0,0 +1,27 @@
package com.baeldung.inttoenum;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
public class IntToEnumUnitTest {
@Test
public void whenIntToEnumUsingValuesMethod_thenReturnEnumObject() {
int timeToDeliveryForOrderedPizzaStatus = 5;
PizzaStatus[] pizzaStatuses = PizzaStatus.values();
PizzaStatus pizzaOrderedStatus = null;
for (int pizzaStatusIndex = 0; pizzaStatusIndex < pizzaStatuses.length; pizzaStatusIndex++) {
if (pizzaStatuses[pizzaStatusIndex].getTimeToDelivery() == timeToDeliveryForOrderedPizzaStatus) {
pizzaOrderedStatus = pizzaStatuses[pizzaStatusIndex];
}
}
assertEquals(pizzaOrderedStatus, PizzaStatus.ORDERED);
}
@Test
public void whenIntToEnumUsingMap_thenReturnEnumObject() {
int timeToDeliveryForOrderedPizzaStatus = 5;
assertEquals(PizzaStatus.castIntToEnum(timeToDeliveryForOrderedPizzaStatus), PizzaStatus.ORDERED);
}
}

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@ -5,12 +5,11 @@
<artifactId>core-java-lang-math-2</artifactId> <artifactId>core-java-lang-math-2</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<name>core-java-lang-math-2</name> <name>core-java-lang-math-2</name>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>

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@ -8,12 +8,11 @@
<version>0.1.0-SNAPSHOT</version> <version>0.1.0-SNAPSHOT</version>
<name>core-java-lang-math</name> <name>core-java-lang-math</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>

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@ -5,7 +5,7 @@
<parent> <parent>
<artifactId>core-java-modules</artifactId> <artifactId>core-java-modules</artifactId>
<groupId>com.baeldung.core-java-modules</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<version>1.0.0-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
</parent> </parent>
<modelVersion>4.0.0</modelVersion> <modelVersion>4.0.0</modelVersion>

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@ -5,7 +5,7 @@
<parent> <parent>
<artifactId>core-java-modules</artifactId> <artifactId>core-java-modules</artifactId>
<groupId>com.baeldung.core-java-modules</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<version>1.0.0-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
</parent> </parent>
<modelVersion>4.0.0</modelVersion> <modelVersion>4.0.0</modelVersion>

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@ -0,0 +1,18 @@
package com.baeldung.supertype;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
public abstract class TypeReference<T> {
private final Type type;
public TypeReference() {
Type superclass = getClass().getGenericSuperclass();
type = ((ParameterizedType) superclass).getActualTypeArguments()[0];
}
public Type getType() {
return type;
}
}

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@ -0,0 +1,24 @@
package com.baeldung.supertype;
import org.junit.Test;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.util.Map;
import static org.junit.Assert.assertEquals;
public class TypeReferenceUnitTest {
@Test
public void givenGenericToken_whenUsingSuperTypeToken_thenPreservesTheTypeInfo() {
TypeReference<Map<String, Integer>> token = new TypeReference<Map<String, Integer>>() {};
Type type = token.getType();
assertEquals("java.util.Map<java.lang.String, java.lang.Integer>", type.getTypeName());
Type[] typeArguments = ((ParameterizedType) type).getActualTypeArguments();
assertEquals("java.lang.String", typeArguments[0].getTypeName());
assertEquals("java.lang.Integer", typeArguments[1].getTypeName());
}
}

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@ -5,7 +5,7 @@
<parent> <parent>
<artifactId>core-java-modules</artifactId> <artifactId>core-java-modules</artifactId>
<groupId>com.baeldung.core-java-modules</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<version>1.0.0-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
</parent> </parent>
<modelVersion>4.0.0</modelVersion> <modelVersion>4.0.0</modelVersion>

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@ -5,7 +5,7 @@
<parent> <parent>
<artifactId>core-java-modules</artifactId> <artifactId>core-java-modules</artifactId>
<groupId>com.baeldung.core-java-modules</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<version>1.0.0-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
</parent> </parent>
<modelVersion>4.0.0</modelVersion> <modelVersion>4.0.0</modelVersion>

View File

@ -5,7 +5,7 @@
<parent> <parent>
<artifactId>core-java-modules</artifactId> <artifactId>core-java-modules</artifactId>
<groupId>com.baeldung.core-java-modules</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<version>1.0.0-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
</parent> </parent>
<modelVersion>4.0.0</modelVersion> <modelVersion>4.0.0</modelVersion>

View File

@ -5,7 +5,7 @@
<parent> <parent>
<artifactId>core-java-modules</artifactId> <artifactId>core-java-modules</artifactId>
<groupId>com.baeldung.core-java-modules</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<version>1.0.0-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
</parent> </parent>
<modelVersion>4.0.0</modelVersion> <modelVersion>4.0.0</modelVersion>

View File

@ -5,7 +5,7 @@
<parent> <parent>
<artifactId>core-java-modules</artifactId> <artifactId>core-java-modules</artifactId>
<groupId>com.baeldung.core-java-modules</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<version>1.0.0-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
</parent> </parent>
<modelVersion>4.0.0</modelVersion> <modelVersion>4.0.0</modelVersion>

View File

@ -5,7 +5,7 @@
<parent> <parent>
<artifactId>core-java-modules</artifactId> <artifactId>core-java-modules</artifactId>
<groupId>com.baeldung.core-java-modules</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<version>1.0.0-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
</parent> </parent>
<modelVersion>4.0.0</modelVersion> <modelVersion>4.0.0</modelVersion>

View File

@ -8,12 +8,11 @@
<version>0.1.0-SNAPSHOT</version> <version>0.1.0-SNAPSHOT</version>
<name>core-java-lang-operators</name> <name>core-java-lang-operators</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<dependencies> <dependencies>

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@ -8,12 +8,11 @@
<version>0.1.0-SNAPSHOT</version> <version>0.1.0-SNAPSHOT</version>
<name>core-java-lang-syntax-2</name> <name>core-java-lang-syntax-2</name>
<packaging>jar</packaging> <packaging>jar</packaging>
<parent> <parent>
<groupId>com.baeldung</groupId> <groupId>com.baeldung.core-java-modules</groupId>
<artifactId>parent-java</artifactId> <artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version> <version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-java</relativePath> <relativePath>../</relativePath>
</parent> </parent>
<build> <build>

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