I'm making a maven plugin to start, stop and clear a database. I'm using hsqldb for it. I have a class (called ServerStart) to start the database:
import java.io.File;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import org.hsqldb.Server;
import org.hsqldb.util.SqlFile;
public static void main(String[] args) {
System.out.println("Starting server...");
createServer();
try {
createADatabase(dbName);
System.out.println("Server started!");
} catch (Exception e) {
e.printStackTrace();
}
}
When I run the main class in Eclipse (right click and run as JavaApplication), it works. But when I try to run it from the cmd line with my mvn command, I get this error:
Exception in thread "main" java.lang.NoClassDefFoundError: org/hsqldb/Server
at sample.plugin.hello_maven_plugin.ServerStart.createServer(ServerStart
.java:50)
at sample.plugin.hello_maven_plugin.ServerStart.main(ServerStart.java:37)
Caused by: java.lang.ClassNotFoundException: org.hsqldb.Server
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
... 2 more
When I run the mvn command, he tries to start ServerClass externally, by doing this:
startOptions = new String[] {"java", "-cp", System.getProperty("user.dir") + "/target/classes/", ServerStart.class.getName()};
new ProcessBuilder(startOptions).start();
I guess I forgot something to add on my pom.xml file, so he includes the hsqldb.jar, but I don't have any idea what. This is my pom file:
<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>
<groupId>sample.plugin</groupId>
<artifactId>hsqldb-maven-plugin</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>maven-plugin</packaging>
<name>hsqldb-maven-plugin</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.maven</groupId>
<artifactId>maven-plugin-api</artifactId>
<version>3.0.3</version>
</dependency>
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
<version>1.4</version>
</dependency>
<dependency>
<groupId>hsqldb</groupId>
<artifactId>hsqldb</artifactId>
<version>1.8.0.10</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>sample.plugin</groupId>
<artifactId>hsqldb-maven-plugin</artifactId>
<version>1.0-SNAPSHOT</version>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
I hope my question is clear enough, and I also hope that someone can help me.
Kind regards,
Walle
a) ??? You define the plugin:
<groupId>sample.plugin</groupId>
<artifactId>hsqldb-maven-plugin</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>maven-plugin</packaging>
And reference itself as a plugin in the build section?
<plugin>
<groupId>sample.plugin</groupId>
<artifactId>hsqldb-maven-plugin</artifactId>
<version>1.0-SNAPSHOT</version>
</plugin>
That's not how it works! A plugin is meant for other projects, not for itself!
b)
startOptions = new String[] {"java", "-cp", System.getProperty("user.dir") + "/target/classes/", ServerStart.class.getName()};
new ProcessBuilder(startOptions).start();
You are going to need a lot more than target/classes in your classpath. The easiest way to get a proper classpath is to let Maven build it for you:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.2</version>
<executions>
<execution>
<id>build-test-classpath</id>
<phase>generate-test-sources</phase>
<goals>
<goal>build-classpath</goal>
</goals>
<configuration>
<outputFile>${project.build.testOutputDirectory}/cp.txt</outputFile>
</configuration>
</execution>
</executions>
</plugin>
Now you'll find a file named cp.txt on your test classpath which contains the classpath you need. Alternatively, you could just use the contents of System.getProperty("java.class.path").
The groupId in your hsqldb dependency is wrong. I had the same problem. Using the following dependency fixed it.
<dependency>
<groupId>org.hsqldb</groupId>
<artifactId>hsqldb</artifactId>
<version>2.0.0</version>
</dependency>
Related
I am planning to use Cucumber Test with Junit 5 in Maven. So I followed cucumber to install different maven dependency. I added a runner class to execute my cucumber tests
package pirate;
import org.junit.platform.suite.api.ConfigurationParameter;
import org.junit.platform.suite.api.IncludeEngines;
import org.junit.platform.suite.api.SelectClasspathResource;
import org.junit.platform.suite.api.Suite;
import static io.cucumber.junit.platform.engine.Constants.GLUE_PROPERTY_NAME;
#Suite
#IncludeEngines("cucumber")
#SelectClasspathResource("pirate")
#ConfigurationParameter(key = GLUE_PROPERTY_NAME, value = "pirate")
public class Runner {}
I also created a new folder name pirate under resources folder and move all .feature files into that new folder.
But when I execute mvn clean install, the command fails at testCompile:
It seems like the compiler can't read the package name?
Below is my pom.xml
<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>
<groupId>org.example</groupId>
<artifactId>onetwothree</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<name>onetwothree</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<build>
<testSourceDirectory>src/test/java</testSourceDirectory>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.1</version>
<configuration>
<source>11</source>
<target>11</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>3.0.0-M5</version>
<configuration>
<properties>
<configurationParameters>
cucumber.junit-platform.naming-strategy=long
</configurationParameters>
</properties>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter</artifactId>
<version>5.9.0</version>
</dependency>
<dependency>
<groupId>io.cucumber</groupId>
<artifactId>cucumber-java</artifactId>
<version>7.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.cucumber</groupId>
<artifactId>cucumber-junit-platform-engine</artifactId>
<version>7.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.platform</groupId>
<artifactId>junit-platform-suite</artifactId>
<version>1.9.0</version>
<scope>test</scope>
</dependency>
</dependencies>
</project>
My project structure is:
but if I comment out cucumber-junit-platform-engine dependency in pom.xml, the error is gone but it won't run the cucumber tests. Did I miss something here?
Not sure if it's related, but one of the error messages is like:
[ERROR] error reading /Users/xx/.m2/repository/org/junit/platform/junit-platform-engine/1.9.1/junit-platform-engine-1.9.1.jar; zip file is empty
[ERROR] /Users/xx/Desktop/zz/src/test/java/pirate/Runner.java:[1,1] cannot access pirate
ZipException opening "junit-platform-engine-1.9.1.jar": zip END header not found
Maven : error in opening zip file when running maven
following the procedure fixes the "cannot access " problem.
did you tried with a different scope than test for the cucumber-junit-platform-engine dependency?
I tried using Hibernate ORM to handle my BungeeCord database mappings. I've used it before and had no problems doing so.
Now I revisited Minecraft programming and could not get Hibernate running.
My pom.xml is:
<?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>
<groupId>io.jakobi</groupId>
<artifactId>sessionutil</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<java.version>17</java.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<repositories>
<repository>
<id>oss.sonatype.org</id>
<url>https://oss.sonatype.org/content/repositories/snapshots</url>
</repository>
<repository>
<id>maven.enginehub.org</id>
<url>https://maven.enginehub.org/repo/</url>
</repository>
<repository>
<id>repo.spongepowered.org</id>
<url>https://repo.spongepowered.org/maven/</url>
</repository>
</repositories>
<dependencies>
<dependency>
<groupId>net.md-5</groupId>
<artifactId>bungeecord-api</artifactId>
<version>1.19-R0.1-SNAPSHOT</version>
<type>jar</type>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>net.md-5</groupId>
<artifactId>bungeecord-api</artifactId>
<version>1.19-R0.1-SNAPSHOT</version>
<type>javadoc</type>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>6.1.2.Final</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.30</version>
</dependency>
<dependency>
<groupId>org.jetbrains</groupId>
<artifactId>annotations</artifactId>
<version>23.0.0</version>
</dependency>
</dependencies>
<build>
<defaultGoal>clean install</defaultGoal>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.1</version>
<configuration>
<source>${java.version}</source>
<target>${java.version}</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>3.3.0</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
</execution>
</executions>
<configuration>
<minimizeJar>true</minimizeJar>
</configuration>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.19.1</version>
<dependencies>
<dependency>
<groupId>org.junit.platform</groupId>
<artifactId>junit-platform-surefire-provider</artifactId>
<version>1.0.1</version>
</dependency>
</dependencies>
</plugin>
</plugins>
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
</build>
</project>
And my main is:
package io.jakobi.sessionutil;
import io.jakobi.sessionutil.database.entity.Action;
import io.jakobi.sessionutil.database.entity.Session;
import io.jakobi.sessionutil.database.repository.ActionRepository;
import io.jakobi.sessionutil.database.repository.SessionRepository;
import io.jakobi.sessionutil.listener.PlayerChatListener;
import io.jakobi.sessionutil.listener.PlayerJoinListener;
import io.jakobi.sessionutil.listener.PlayerQuitListener;
import net.md_5.bungee.api.ProxyServer;
import net.md_5.bungee.api.plugin.Plugin;
import org.hibernate.Hibernate;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
import org.hibernate.internal.CoreMessageLogger;
import java.io.File;
public class SessionUtil extends Plugin {
private static final String HIBERNATE_CONFIG_FILE_NAME = "hibernate.cfg.xml";
private SessionFactory sessionFactory;
#Override
public void onEnable() {
sessionFactory = new Configuration()
.configure(new File(this.getDataFolder().getAbsolutePath() + "/" + HIBERNATE_CONFIG_FILE_NAME))
.addAnnotatedClass(Session.class)
.addAnnotatedClass(Action.class)
.buildSessionFactory();
ActionRepository actionRepository = new ActionRepository(sessionFactory);
SessionRepository sessionRepository = new SessionRepository(sessionFactory);
registerListener(this, actionRepository, sessionRepository);
}
#Override
public void onDisable() {
if (this.sessionFactory != null) {
this.sessionFactory.close();
}
}
private void registerListener(SessionUtil instance, ActionRepository actionRepository, SessionRepository sessionRepository) {
this.getProxy().getPluginManager().registerListener(instance, new PlayerJoinListener(sessionRepository));
this.getProxy().getPluginManager().registerListener(instance, new PlayerQuitListener(sessionRepository));
this.getProxy().getPluginManager().registerListener(instance, new PlayerChatListener(sessionRepository, actionRepository));
}
}
The issue that I am facing is that on startup, the following exception is thrown:
WARNING] Exception encountered when loading plugin: SessionUtil
java.lang.ExceptionInInitializerError
at io.jakobi.sessionutil.SessionUtil.onEnable(SessionUtil.java:27)
at net.md_5.bungee.api.plugin.PluginManager.enablePlugins(PluginManager.java:265)
at net.md_5.bungee.BungeeCord.start(BungeeCord.java:285)
at net.md_5.bungee.BungeeCordLauncher.main(BungeeCordLauncher.java:67)
at net.md_5.bungee.Bootstrap.main(Bootstrap.java:15)
Caused by: java.lang.IllegalArgumentException: Invalid logger interface org.hibernate.internal.CoreMessageLogger (implementation not found in PluginClassloader(desc=PluginDescription(name=SessionUtil, main=io.jakobi.sessionutil.SessionUtil, version=1.0-SNAPSHOT, author=Lukas Jakobi <lukas#jakobi.io>, depends=[], softDepends=[], file=plugins/sessionutil-1.0-SNAPSHOT.jar, description=A utility plugin to manage user sessions, libraries=[])))
at org.jboss.logging.Logger$1.run(Logger.java:2556)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:318)
at org.jboss.logging.Logger.getMessageLogger(Logger.java:2529)
at org.jboss.logging.Logger.getMessageLogger(Logger.java:2516)
at org.hibernate.internal.CoreLogging.messageLogger(CoreLogging.java:29)
at org.hibernate.internal.CoreLogging.messageLogger(CoreLogging.java:25)
at org.hibernate.cfg.Configuration.<clinit>(Configuration.java:106)
... 5 more
A quick google search didn't really help. I found a comment saying I have to initialize the logger with Hibernate.initalize(object). I could not get that to work either.
Thanks in advance for any help! :)
I don't know how class loading works in this "environment", but the hibernate-core.jar should contain a class called org.hibernate.internal.CoreMessageLogger_$logger, which is the logger implementation that apparently can't be found. Maybe the class loader is broken?
Your maven shade plugin contains the following:
<configuration>
<minimizeJar>true</minimizeJar>
</configuration>
This causes all the logging dependencies to be dropped while shading. Removing this line will fix the issue.
I'm trying to load data from Google BigQuery into Spark running on Google Dataproc (I'm using Java). I tried to follow instructions on here: https://cloud.google.com/dataproc/docs/tutorials/bigquery-connector-spark-example
I get the error: "ClassNotFoundException: Failed to find data source: bigquery."
My pom.xml looks like this:
<?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>
<groupId>com.virtualpairprogrammers</groupId>
<artifactId>learningSpark</artifactId>
<version>0.0.3-SNAPSHOT</version>
<packaging>jar</packaging>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-core_2.11</artifactId>
<version>2.3.2</version>
</dependency>
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-sql_2.11</artifactId>
<version>2.3.2</version>
</dependency>
<dependency>
<groupId>org.apache.hadoop</groupId>
<artifactId>hadoop-hdfs</artifactId>
<version>2.2.0</version>
</dependency>
<dependency>
<groupId>com.google.cloud.spark</groupId>
<artifactId>spark-bigquery_2.11</artifactId>
<version>0.9.1-beta</version>
<classifier>shaded</classifier>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.5.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<artifactId>maven-jar-plugin</artifactId>
<version>3.0.2</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
<archive>
<manifest>
<mainClass>com.virtualpairprogrammers.Main</mainClass>
</manifest>
</archive>
</configuration>
</plugin>
</plugins>
</build>
</project>
After adding the dependency to my pom.xml it was downloading a lot to build the .jar, so I think I should have the correct dependency? However, Eclipse is also warning me that "The import com.google.cloud.spark.bigquery is never used".
This is the part of my code where I get the error:
import org.apache.spark.sql.Dataset;
import org.apache.spark.sql.Row;
import org.apache.spark.sql.SparkSession;
import com.google.cloud.spark.bigquery.*;
public class Main {
public static void main(String[] args) {
SparkSession spark = SparkSession.builder()
.appName("testingSql")
.getOrCreate();
Dataset<Row> data = spark.read().format("bigquery")
.option("table","project.dataset.tablename")
.load()
.cache();
I think you only added BQ connector as compile time dependency, but it is missing at runtime. You need to either make a uber jar which includes the connector in your job jar (the doc needs to be updated), or include it when you submit the job gcloud dataproc jobs submit spark --properties spark.jars.packages=com.google.cloud.spark:spark-bigquery_2.11:0.9.1-beta.
I faced the same issue and updated the format from "bigquery" to "com.google.cloud.spark.bigquery" and that worked for me.
Specifying the dependency in the build.sbt and using "com.google.cloud.spark.bigquery" in format as suggested by Peter resolved the issue for me.
I have 2 maven projects
1) My Utils Project - imports datecalc-common as a dependency, contains my custom utility classes. Note that it doesn't have a main class.
2) My Main Project - imports 'My Utils Project' as a dependency.
'My Main Project' shows the error 'Cannot find class HolidayCalculator'.
My Utils Project-pom.xml is given below.
How do I modify it so that the dependency jars are included as part of 'My Utils Project'.jar ?
<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>
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
<groupId>com.mycompany.mycommoncode</groupId>
<artifactId>myutilsjar</artifactId>
<version>0.0.12-SNAPSHOT</version>
<name>myutilsjar</name>
<description>Common Date Utils used by my classes</description>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.8.2</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>5.0.8.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>5.0.8.RELEASE</version>
</dependency>
<dependency>
<groupId>net.objectlab.kit</groupId>
<artifactId>datecalc-common</artifactId>
<version>1.4.0</version>
</dependency>
<dependency>
<groupId>net.objectlab.kit</groupId>
<artifactId>datecalc-jdk8</artifactId>
<version>1.4.0</version>
</dependency>
<dependency>
<groupId>com.fasterxml.uuid</groupId>
<artifactId>java-uuid-generator</artifactId>
<version>3.1.4</version>
</dependency>
<dependency>
<groupId>javax.validation</groupId>
<artifactId>validation-api</artifactId>
<version>2.0.1.Final</version>
</dependency>
</dependencies>
<distributionManagement>
<snapshotRepository>
<id>snapshots</id>
<url>my maven url</url>
</snapshotRepository>
</distributionManagement>
</project>
NOTE: I DO NOT want to use 'shade' plugin. Is there any other way of doing this?
I had to solve that same issue some months ago. I wrote a small library that was to be shared between many projects and I wanted to add it to maven.
This is what I did.
For your "Utils project"
Compile it using maven-assembly-plugin:
Add this to your pom.xml:
<build>
<plugins>
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<configuration>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
</configuration>
<executions>
<execution>
<id>make-assembly</id>
<phase>package</phase>
<goals>
<goal>attached</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
Build the library with it's dependencies using the following command:
mvn clean compile assembly:attached
For your main project
Add this plugin to your pom.xml:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-install-plugin</artifactId>
<version>2.5.2</version>
<executions>
<execution>
<id>install-external</id>
<phase>clean</phase>
<configuration>
<file>${project.basedir}/src/main/resources/lib/sso-client-1.0.jar</file>
<repositoryLayout>default</repositoryLayout>
<groupId>SSOClient</groupId>
<artifactId>sso-client</artifactId>
<version>1.0</version>
<packaging>jar</packaging>
<generatePom>true</generatePom>
</configuration>
<goals>
<goal>install-file</goal>
</goals>
</execution>
</executions>
</plugin>
As you can see, I wrote a custom SSO Client.
This will read the jar you compiled in the previous step, and make it available as a dependency. I decided to place it in the resources folder of the main project. The version has to match the one in your "utils project".
Also add the dependency to the pom.xml:
<dependency>
<groupId>SSOClient</groupId>
<artifactId>sso-client</artifactId>
<version>1.0</version>
</dependency>
That's it! You can now reference the classes of the package in your main project.
Let me know if you need clarification.
The Apache Maven Shade Plugin provides the capability to package your artifact in a "uber-jar", that is to say a jar including all dependencies required to run the project. If needed this plugin also supports packages shading (renaming) for some of the dependencies.
More info at:
https://maven.apache.org/plugins/maven-shade-plugin/examples/includes-excludes.html#
I am trying to follow the Maven in 5 Minutes tutorial for my project but for some reason I can't seem to actually run my project when it builds. I have the following pom.xml file:
<?xml version="1.0"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.my-group</groupId>
<artifactId>my-artifact</artifactId>
<version>0.0.1-SNAPSHOT</version>
<dependencies>
<dependency>
<groupId>com.sun</groupId>
<artifactId>tools</artifactId>
<version>1.8.0</version>
<scope>system</scope>
<systemPath>${java.home}/../lib/tools.jar</systemPath>
</dependency>
<dependency>
<groupId>commons-cli</groupId>
<artifactId>commons-cli</artifactId>
<version>1.3.1</version>
</dependency>
<dependency>
<groupId>com.oracle</groupId>
<artifactId>javafx</artifactId>
<version>2.2.3</version>
<scope>system</scope>
<systemPath>${project.basedir}/jfxrt.jar</systemPath>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.5.1</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
<manifest>
<mainClass>com.my.package.MyClass</mainClass>
</manifest>
</configuration>
</plugin>
</plugins>
</build>
</project>
The tutorial seems to imply that I can do this from my project root:
mvn package
java -cp target/my-artifact-0.0.1-SNAPSHOT.jar com.my.package.MyClass
However, if I try to do this, I get the following error message:
Error: Could not find or load main class com.my.package.MyClass
If I run java -cp ../my-artifact-0.0.1-SNAPSHOT.jar com.my.package.MyClass from the target/classes directory I still get the same message, which is weird because I've verified that the .class file is there. Why am I not able to run my project after building it with the above steps?