Essential tags for building the java project using maven in pom.xml -
i building java project using maven couldn't succeed. so, can please tell me essential tags , corresponding values required in pom.xml build project? also, how add storm dependencies manually command line?
my directory structure of project :
root | |----com--->test----->newpackage---->*.class |--- meta-inf------>manifest.mf |----resource----->words.txt |----pom.xml |-----*.jar initially tried maven link , create 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"> <build> <plugins> <plugin> <groupid>org.apache.maven.plugins</groupid> <artifactid>maven-shade-plugin</artifactid> <version>1.6</version> <executions> <execution> <phase>com.test.newpackage</phase> <goals> <goal>shade</goal> </goals> </execution> </executions> </plugin> </plugins> </build> </project> but, after use mvn package. throw exception :
[info] scanning projects... [info] ------------------------------------------------------------------------ [error] fatal error [info] ------------------------------------------------------------------------ [info] error building pom (may not project's pom). project id: unknown pom location: /home/naresh/desktop/sharedfolder/stormeclipse/pom.xml reason: not v4.0.0 pom. project unknown @ /home/naresh/desktop/sharedfolder/stormeclipse/pom.xml [info] ------------------------------------------------------------------------ [info] trace org.apache.maven.reactor.mavenexecutionexception: not v4.0.0 pom. project unknown @ /home/naresh/desktop/sharedfolder/stormeclipse/pom.xml @ org.apache.maven.defaultmaven.getprojects(defaultmaven.java:404) @ org.apache.maven.defaultmaven.doexecute(defaultmaven.java:272) @ org.apache.maven.defaultmaven.execute(defaultmaven.java:138) @ org.apache.maven.cli.mavencli.main(mavencli.java:362) @ org.apache.maven.cli.compat.compatiblemain.main(compatiblemain.java:60) @ sun.reflect.nativemethodaccessorimpl.invoke0(native method) @ sun.reflect.nativemethodaccessorimpl.invoke(nativemethodaccessorimpl.java:57) @ sun.reflect.delegatingmethodaccessorimpl.invoke(delegatingmethodaccessorimpl.java:43) @ java.lang.reflect.method.invoke(method.java:606) @ org.codehaus.classworlds.launcher.launchenhanced(launcher.java:315) @ org.codehaus.classworlds.launcher.launch(launcher.java:255) @ org.codehaus.classworlds.launcher.mainwithexitcode(launcher.java:430) @ org.codehaus.classworlds.launcher.main(launcher.java:375) caused by: org.apache.maven.project.invalidprojectmodelexception: not v4.0.0 pom. project unknown @ /home/naresh/desktop/sharedfolder/stormeclipse/pom.xml @ org.apache.maven.project.defaultmavenprojectbuilder.readmodel(defaultmavenprojectbuilder.java:1599) @ org.apache.maven.project.defaultmavenprojectbuilder.readmodel(defaultmavenprojectbuilder.java:1571) @ org.apache.maven.project.defaultmavenprojectbuilder.buildfromsourcefileinternal(defaultmavenprojectbuilder.java:506) @ org.apache.maven.project.defaultmavenprojectbuilder.build(defaultmavenprojectbuilder.java:200) @ org.apache.maven.defaultmaven.getproject(defaultmaven.java:604) @ org.apache.maven.defaultmaven.collectprojects(defaultmaven.java:487) @ org.apache.maven.defaultmaven.getprojects(defaultmaven.java:391) ... 12 more [info] ------------------------------------------------------------------------ [info] total time: < 1 second [info] finished at: mon jul 22 14:38:24 ist 2013 [info] final memory: 1m/15m [info] ------------------------------------------------------------------------ after used link maven link 2 , created 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>com.test.newpackage</groupid> <artifactid>wordcount</artifactid> <version>0.0.1</version> <build> <plugins> <plugin> <artifactid>maven-assembly-plugin</artifactid> <configuration> <descriptorrefs> <descriptorref>jar-with-dependencies</descriptorref> </descriptorrefs> <archive> <manifest> <mainclass>com.test.newpackage</mainclass> </manifest> </archive> </configuration> </plugin> </plugins> </build> <repositories> <!-- repository can found storm dependencies <repository> <id>clojars.org</id> <url>http://clojars.org/repo</url> </repository> --> </repositories> <dependencies> <!-- storm dependency --> <dependency> <groupid>storm</groupid> <artifactid>storm</artifactid> <version>0.8.1</version> </dependency> </dependencies> </project> this time throw exception :
[error] build error [info] ------------------------------------------------------------------------ [info] failed resolve artifact. missing: ---------- 1) storm:storm:jar:0.8.1 try downloading file manually project website. then, install using command: mvn install:install-file -dgroupid=storm -dartifactid=storm -dversion=0.8.1 -dpackaging=jar -dfile=/path/to/file alternatively, if host own repository can deploy file there: mvn deploy:deploy-file -dgroupid=storm -dartifactid=storm -dversion=0.8.1 -dpackaging=jar -dfile=/path/to/file -durl=[url] -drepositoryid=[id] path dependency: 1) com.test.newpackage:wordcount:jar:0.0.1 2) storm:storm:jar:0.8.1 ---------- 1 required artifact missing. artifact: com.test.newpackage:wordcount:jar:0.0.1 specified remote repositories: central (http://repo1.maven.org/maven2)
about structure:
maven assumes java classes in src/main/java , resources (anything in folder resource , meta-inf dir) in src/main/resources. directory structure described not work if tweak maven bit because of java classes in root dir (recursion). why don't use default structure? should have reason change this.
storm dependency:
you have link external repository in pom. outcommented. should work expected. if behind proxy have define proxy in settings.xml
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