Using Maven 3.1
Eclipse Helios
Aspekt:
Try to create a runable jar file using maven-jar/dependency-plugins.
Problem: After creating jar file and dependencies there are NoCLassDefFoundErrors when i try to start the jar file with command
java -jar program.jar
But the Class/File is available in ./dependency-jars folder??? I Also tried following command:
java -cp ./dependency-jars -jar program.jar
This didn't work, too.
Question:
Do you know why jvm can not find these classes? What is wrong?
pom.xml:
<build>
<finalName>program</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-eclipse-plugin</artifactId>
<version>2.9</version>
<configuration>
<downloadSources>true</downloadSources>
<downloadJavadocs>true</downloadJavadocs>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>${jdk.version}</source>
<target>${jdk.version}</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>2.4</version>
<configuration>
<archive>
<manifest>
<addClasspath>true</addClasspath>
<classpathPrefix>dependency-jars/</classpathPrefix>
<mainClass>de.test.MainCLass</mainClass>
</manifest>
</archive>
<outputDirectory>${package-target-folder}</outputDirectory>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-javadoc-plugin</artifactId>
<version>2.9.1</version>
<executions>
<execution>
<goals>
<goal>javadoc</goal>
</goals>
<phase>package</phase>
<id>create-javadoc</id>
<configuration>
<charset>UTF-8</charset>
<outputDirectory>${package-target-folder}/docs</outputDirectory>
<reportOutputDirectory>${package-target-folder}/docs</reportOutputDirectory>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.8</version>
<executions>
<execution>
<id>copy-dependencies</id>
<phase>package</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<outputDirectory>${package-target-folder}/dependency-jars/</outputDirectory>
</configuration>
</execution>
<execution>
</execution>
</executions>
</plugin>
</plugins>
</build>
[UPDATE]
The created MANIFEST.MF looks like
Manifest-Version: 1.0
Built-By: ahausden
Build-Jdk: 1.7.0_25
Class-Path: dependency-jars/spring-core-4.0.0.RELEASE.jar dependency-j
ars/commons-logging-1.1.1.jar dependency-jars/spring-jdbc-4.0.0.RELEA
SE.jar dependency-jars/spring-beans-4.0.0.RELEASE.jar dependency-jars
/spring-tx-4.0.0.RELEASE.jar dependency-jars/spring-oxm-4.0.0.RELEASE
.jar dependency-jars/spring-batch-core-2.2.0.RELEASE.jar dependency-j
ars/xstream-1.3.jar dependency-jars/xpp3_min-1.1.4c.jar dependency-ja
rs/jettison-1.1.jar dependency-jars/spring-aop-3.2.0.RELEASE.jar depe
ndency-jars/spring-context-3.2.0.RELEASE.jar dependency-jars/spring-e
xpression-3.2.0.RELEASE.jar dependency-jars/spring-batch-infrastructu
re-2.2.0.RELEASE.jar dependency-jars/spring-retry-1.0.2.RELEASE.jar d
ependency-jars/spring-batch-test-2.2.0.RELEASE.jar dependency-jars/co
mmons-io-1.4.jar dependency-jars/commons-dbcp-1.2.2.jar dependency-ja
rs/commons-pool-1.3.jar dependency-jars/commons-collections-3.2.jar d
ependency-jars/spring-test-4.0.0.RELEASE.jar dependency-jars/javax.in
ject-1.jar dependency-jars/slf4j-log4j12-1.6.1.jar dependency-jars/sl
f4j-api-1.6.1.jar dependency-jars/log4j-1.2.16.jar dependency-jars/sp
ring-orm-4.0.0.RELEASE.jar dependency-jars/aopalliance-1.0.jar depend
ency-jars/mariadb-java-client-1.1.1.jar dependency-jars/hibernate-cor
e-4.3.1.Final.jar dependency-jars/jboss-logging-3.1.3.GA.jar dependen
cy-jars/jboss-logging-annotations-1.2.0.Beta1.jar dependency-jars/jbo
ss-transaction-api_1.2_spec-1.0.0.Final.jar dependency-jars/dom4j-1.6
.1.jar dependency-jars/xml-apis-1.0.b2.jar dependency-jars/hibernate-
commons-annotations-4.0.4.Final.jar dependency-jars/hibernate-jpa-2.1
-api-1.0.0.Final.jar dependency-jars/javassist-3.18.1-GA.jar dependen
cy-jars/antlr-2.7.7.jar dependency-jars/jandex-1.1.0.Final.jar depend
ency-jars/hibernate-annotations-3.5.6-Final.jar dependency-jars/hiber
nate-commons-annotations-3.2.0.Final.jar dependency-jars/hibernate-jp
a-2.0-api-1.0.0.Final.jar dependency-jars/javassist-3.12.1.GA.jar dep
endency-jars/commons-cli-1.3-20140221.042048-103.jar
Created-By: Apache Maven 3.1.0
Main-Class: de.test.MainClass
Archiver-Version: Plexus Archiver
And the last "line" is as line separator. Seems that the MANIFEST.MF file looks a little bit corrupt, doesn't it?
Not sure what's going on, but this is what my pom looks like for building a runnable jar using shade:
<build>
<resources>
<resource>
<directory>${basedir}/src/main/resources</directory>
<filtering>false</filtering>
<includes>
<include>schema.xsd</include>
</includes>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
</execution>
</executions>
<configuration>
<shadedArtifactAttached>true</shadedArtifactAttached>
<shadedClassifierName>stand-alone</shadedClassifierName>
<artifactSet>
<excludes>
<exclude>org.slf4j:slf4j-api:jar:</exclude>
<exclude>org.slf4j:slf4j-log4j12:jar:</exclude>
<exclude>org.slf4j:jcl-over-slf4j:jar:</exclude>
<exclude>commons-logging:commons-logging:jar:</exclude>
<exclude>commons-logging:commons-logging-api:jar:</exclude>
</excludes>
</artifactSet>
<filters>
<filter>
<artifact>*:*</artifact>
<excludes>
<exclude>META-INF/*.SF</exclude>
<exclude>META-INF/*.DSA</exclude>
<exclude>META-INF/*.RSA</exclude>
</excludes>
</filter>
</filters>
<finalName>MyFinalRunnableJarName</finalName>
<transformers>
<transformer
implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
<mainClass>class.with.main.Method</mainClass>
</transformer>
<transformer
implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
<resource>META-INF/spring.handlers</resource>
</transformer>
<transformer
implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
<resource>META-INF/spring.schemas</resource>
</transformer>
</transformers>
</configuration>
</plugin>
</plugins>
</build>
Try to provide entry into manifest file:
Main-Class: YourClassWithMainMethod
And also see this post . So you can make it manually and see the difference.
If dependency-jars
is a directory also try:
java -cp ./dependency-jars/* -jar program.jar
I still cannot post comments, so please show what are these NoCLassDefFoundErrors. And have you tried to do the same jar file manually from Eclipse and see the difference?
You have dependency dependency-jars/commons-cli-1.3-20140221.042048-103.jar in your manifest but you wrote you have SNAPSHOT version in directory. And there is only commons-cli:commons-cli:20040117.000000 in maven central.
@robermann please see this post (to work it should be in double quotes though)
The simplest solution is to use maven-assembly-plugin like this:
<project>
[...]
<build>
[...]
<plugins>
<plugin>
<!-- NOTE: We don't need a groupId specification because the group is
org.apache.maven.plugins ...which is assumed by default.
-->
<artifactId>maven-assembly-plugin</artifactId>
<version>2.4</version>
<configuration>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
</configuration>
[...]
</project>
Are you sure your java version, launched at command line, is equal or greater than that used by maven when compiling? try java -version
通过命令行,转到“ dependency-jars”的父目录并运行: java -jar program.jar
Ok, i solved the second/updated Problem:
I first startet to use eclipse with maven plugin to create the runable jar file. This runs in the described problems.
After all i tried to use maven 3.1 from console application and after all it works. Seems that eclipse maven plugin has some problems.
Use this command to create jar file of any maven project.
mvn clean compile install
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