Develop Reference

Could Not Resolve Dependencies For Project Maven

I'm trying to run a GitHub repo that uses Java and Maven, but I ran into an error while using mvn clean install. I would ask this question in the GitHub thread (linked below), but the author hasn't responded to previous issues. When I run the command I get this error:
Failed to execute goal on project tu: Could not resolve dependencies for project com.vaguehope.tu:tu:jar:1.1-SNAPSHOT: Failed to collect dependencies at args4j:args4j:jar:2.0.21: Failed to read artifact descriptor for args4j:args4j:jar:2.0.21: Could not transfer artifact args4j:args4j:pom:2.0.21 from/to maven-default-http-blocker (http://0.0.0.0/): Blocked mirror for repositories: [maven.jenkins-ci.org (http://maven.jenkins-ci.org/content/repositories/releases/, default, releases)] -> [Help 1]
Here is the 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>com.vaguehope.tu</groupId>
<artifactId>tu</artifactId>
<version>1.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>tu</name>
<properties>
<java.version>1.7</java.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<args4j.version>2.0.21</args4j.version>
<commonsio.version>2.4</commonsio.version>
<logback.version>1.0.9</logback.version>
<slf4j.version>1.7.2</slf4j.version>
<junit.version>4.11</junit.version>
<hamcrest.version>1.3</hamcrest.version>
<mockito.version>1.9.5</mockito.version>
<powermock.version>1.5</powermock.version>
</properties>
<prerequisites>
<maven>2.2.1</maven>
</prerequisites>
<build>
<plugins>
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<version>2.4</version>
<configuration>
<archive>
<manifest>
<mainClass>com.vaguehope.tu.Main</mainClass>
</manifest>
</archive>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
</configuration>
<executions>
<execution>
<id>assembly</id>
<phase>install</phase>
<goals>
<goal>single</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.0</version>
<configuration>
<source>${java.version}</source>
<target>${java.version}</target>
</configuration>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>maven.jenkins-ci.org</id>
<url>http://maven.jenkins-ci.org/content/repositories/releases/</url>
<layout>default</layout>
<releases>
<enabled>true</enabled>
<checksumPolicy>fail</checksumPolicy>
</releases>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
<dependencies>
<!-- CLI -->
<dependency>
<groupId>args4j</groupId>
<artifactId>args4j</artifactId>
<version>${args4j.version}</version>
</dependency>
<!-- Util -->
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>${commonsio.version}</version>
</dependency>
<!-- Logging -->
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>${logback.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${slf4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jul-to-slf4j</artifactId>
<version>${slf4j.version}</version>
</dependency>
<!-- Testing. -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.hamcrest</groupId>
<artifactId>hamcrest-library</artifactId>
<version>${hamcrest.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-core</artifactId>
<version>${mockito.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.powermock</groupId>
<artifactId>powermock-module-junit4</artifactId>
<version>${powermock.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.powermock</groupId>
<artifactId>powermock-api-mockito</artifactId>
<version>${powermock.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
</project>
Here is the original GitHub post:
https://github.com/haku/tu

Seems the repository URL is not accessible .
Try updating the repo URL to maven central:
https://repo1.maven.org/maven2
Remove the repositories tag basically from pom.xml.
Share settings.xml if it doesn't help.

The problem is that HTTP repositories are blocked by default since this change to Maven. Maven developers are trying to force people to use HTTPS. This happened a long time after that repo was last touched 4 years ago, which is why the original authors had no problems. See also:
How to disable maven blocking external HTTP repositores?
It seems maven.jenkins-ci.org doesn't exist any more anyway. You can trivially remove the whole dependency on that repo by bumping this version from 2.0.21 to 2.0.22. The latter exists in Maven Central, and the former does not - hence why the original author(s) needed to add a separate repo declaration to get it from somewhere else.
<args4j.version>2.0.22</args4j.version>
Then you can delete the whole <repositories> section
<repositories>
<repository>
<id>maven.jenkins-ci.org</id>
<url>http://maven.jenkins-ci.org/content/repositories/releases/</url>
<layout>default</layout>
<releases>
<enabled>true</enabled>
<checksumPolicy>fail</checksumPolicy>
</releases>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>

A different solution, related to a corporate environment, is that we are slowly moving out of maven to another dep/build tool, but there is still a 'corporate' settings.xml file defined.
So just rename it to a different file (instead of deleting), like mv settings.xml settings-backup.xml, and returning maven again, would help you to check if it's the issue.

OpenShift class String error

I can't install my spring mvc project to OpenShift. If i push, i will get a error remote: [ERROR] /var/lib/openshift/575b0b2b2d52719638000001/app-root/runtime/repo/src/main/java/com/controller/ReservationController.java:[73,66] error: cannot find symbo
remote: [ERROR] class String
My pom.xml. I changed maven compiler source and target.
<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>happy</groupId>
<artifactId>happy</artifactId>
<packaging>war</packaging>
<version>1.0</version>
<name>happy</name>
<repositories>
<repository>
<id>eap</id>
<url>http://maven.repository.redhat.com/techpreview/all</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>eap</id>
<url>http://maven.repository.redhat.com/techpreview/all</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.7</maven.compiler.source>
<maven.compiler.target>1.7</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>9.2-1003-jdbc4</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.25</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.0.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.1.4.RELEASE</version>
</dependency>
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.4.1</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.4.1.1</version>
</dependency>
<dependency>
<groupId>org.json</groupId>
<artifactId>json</artifactId>
<version>20090211</version>
</dependency>
<dependency>
<groupId>com.googlecode.json-simple</groupId>
<artifactId>json-simple</artifactId>
<version>1.1.1</version>
</dependency>
</dependencies>
<profiles>
<profile>
<id>openshift</id>
<build>
<finalName>happy</finalName>
<plugins>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>2.1.1</version>
<configuration>
<outputDirectory>webapps</outputDirectory>
<warName>ROOT</warName>
</configuration>
</plugin>
</plugins>
</build>
</profile>
</profiles>
On line 73,66 i have used command String.join(); What can I do to fix this? I created application with Tomcat 7 in OpenShift.

String.join added in Java8. You are using Java 7.
Follow this tutorial, and
"export JAVA_HOME=/etc/alternatives/java_sdk_1.8.0"
in your "action_hooks/start" script. See action hooks documentation

Maven cannot resolve dependency for project from source location

I'm pretty new to maven so I am not sure how to fix this issue.
I am trying to package my maven project (mvn clean package) but I am getting this error:
Failed to execute goal on project TestSDK: Could not resolve
dependencies for project
com.company.idea.qe:qeTestSDK:jar:1.0-SNAPSHOT: Failure to find
org.slf4j:slf4j-parent:jar:1.7.21 in
http://nexus-proxy/nexus/content/groups/public/ was cached in the
local repository, resolution will not be reattempted until the update
interval of Company-nexus has elapsed or updates are forced -> [Help 1]
I believe this is caused by Maven using the repository value as the only source of downloading dependencies. I require this to download the WebDriverBuilder artifact. Being new to Maven I'm not sure how to do this.
my pom.xml currently looks like this:
http://maven.apache.org/xsd/maven-4.0.0.xsd">
4.0.0
<groupId>com.company.idea.qe</groupId>
<artifactId>qeTestSDK</artifactId>
<version>1.0-SNAPSHOT</version>
<repositories>
<repository>
<id>company-nexus</id>
<name>Compnay Nexus</name>
<url>http://nexus-proxy/nexus/content/groups/public/</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
</repositories>
<dependencies>
<dependency>
<groupId>com.company.tools</groupId>
<artifactId>WebDriverBuilder</artifactId>
<version>2.3.3</version>
</dependency>
<dependency>
<groupId>org.testng</groupId>
<artifactId>testng</artifactId>
<version>6.9.10</version>
</dependency>
<dependency>
<groupId>org.seleniumhq.selenium</groupId>
<artifactId>selenium-java</artifactId>
<version>2.53.0</version>
</dependency>
<!-- Gson: Java to Json conversion -->
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.6.2</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-parent</artifactId>
<version>1.7.21</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.19.1</version>
</plugin>
</plugins>
</build>

Your dependency should be for sl4j-api and not sl4j-parent
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.21</version>
</dependency>

How to import the Confluence API with Maven?

I need to work with the Confluence API.
I work with Maven POM but I don't find how to insert the dependencies for the Confluence API.
Can you help me?
What I've already tried:
I need to work with the SpaceManager primaly.
I found this tutorial about managing the pom. So after the tutorial, my pom looks like the following:
<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>***.createspace</groupId>
<artifactId>CreateSpace</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>CreateSpace</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<build>
<plugins>
<plugin>
<groupId>com.atlassian.maven.plugins</groupId>
<artifactId>maven-confluence-plugin</artifactId>
<version>3.2.3</version>
<extensions>true</extensions>
<configuration>
<productVersion>${product.version}</productVersion>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.atlassian.confluence</groupId>
<artifactId>confluence</artifactId>
<version>${confluence.version}</version>
<scope>provided</scope> <!-- important! -->
</dependency>
</dependencies>
</project>
The *** in the groupId is just to hide my package name of my company.
But also with this pom, I get the error The import com.atlassian cannot be resolved with this import:
import com.atlassian.confluence.spaces.SpaceManager;
So can you help me? Or please tell me what I should add to avoid downvotes, then I hope you see I really searched in the net and need help!

There are instructions how to work with atlassian maven repo Atlassian Maven Repositories and the repo URL is provided: https://maven.atlassian.com/repository/public
<!-- language: xml -->
<repository>
<id>atlassian-public</id>
<url>https://maven.atlassian.com/repository/public</url>
<snapshots>
<enabled>true</enabled>
<updatePolicy>never</updatePolicy>
<checksumPolicy>warn</checksumPolicy>
</snapshots>
<releases>
<enabled>true</enabled>
<checksumPolicy>warn</checksumPolicy>
</releases>
</repository>
If you're trying to add a plugin for confluence WIKI you'll probably need a dependency to:
<!-- language: xml -->
<groupId>com.atlassian.confluence</groupId>
<artifactId>confluence</artifactId>
( only once you add the atlassian maven repo to your pom.xml ) so full pom.xml will look like this:
<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.vilutis.lt</groupId>
<artifactId>confluence-plugin</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>confluence-plugin</name>
<repositories>
<repository>
<id>atlassian-public</id>
<url>https://maven.atlassian.com/repository/public</url>
<snapshots>
<enabled>true</enabled>
<updatePolicy>never</updatePolicy>
<checksumPolicy>warn</checksumPolicy>
</snapshots>
<releases>
<enabled>true</enabled>
<checksumPolicy>warn</checksumPolicy>
</releases>
</repository>
</repositories>
<!-- I had to add this section because activation-1.0.2.jar does not exist in public maven repo -->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>javax.activation</groupId>
<artifactId>activation</artifactId>
<version>1.1</version>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>com.atlassian.confluence</groupId>
<artifactId>confluence</artifactId>
<version>5.2</version>
</dependency>
</dependencies>
</project>
This config works fine with version 5.2 and the SpaceManager class is accessible in your java code.

I'm not sure with Confluence API implementation you're using. You could try this:
<dependency>
<groupId>org.jvnet.hudson</groupId>
<artifactId>confluence-api</artifactId>
<version>1.0</version>
</dependency>
If you're using an implementation that doesn't support maven builds, then you'll have to add the transitive dependencies yourself.

In this case confluent.version is 3.0.0
<dependency>
<groupId>io.confluent</groupId>
<artifactId>common-config</artifactId>
<version>${confluent.version}</version>
</dependency>
<dependency>
<groupId>io.confluent</groupId>
<artifactId>common-utils</artifactId>
<version>${confluent.version}</version>
</dependency>
<dependency>
<groupId>io.confluent</groupId>
<artifactId>kafka-schema-registry-client</artifactId>
<version>${confluent.version}</version>
</dependency>
<dependency>
<groupId>io.confluent</groupId>
<artifactId>kafka-avro-serializer</artifactId>
<version>${confluent.version}</version>
</dependency>

maven+gwt+eclipse

It appears I have a problem configuring maven in eclipse. i've installed through eclipse marketplace maven for eclipse and maven wtp and it eclipse won't recognize the first line of the POM. not to mention the <packaging>js</packaging> part
the error for the first line:
"Project build error: Unresolveable build extension: Plugin org.codehaus.mojo:javascript-maven-plugin:2.0.0-alpha-1 or one of its dependencies could not be resolved: Could not transfer artifact org.sonatype.aether:aether-util:jar:1.11 from/to central (http://repo.maven.apache.org/maven2): No response received after 60000"
this is the full pom.xml
<?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>www.bgusched.co.il</groupId>
<artifactId>bgusched1</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>JavaScript RIA</name>
<packaging>js</packaging>
<description>A JavaScript Rich Internet Application using jQuery and jQuery UI.</description>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<org.springframework.version>3.0.1.RELAESE</org.springframework.version>
<org.hibernate.version.>3.5.1-Final</org.hibernate.version.>
<gwt.version>2.0.3</gwt.version>
<maven.compiler.source>1.6</maven.compiler.source>
<maven.compiler.target>1.6</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>org.codehaus.mojo</groupId>
<artifactId>jquery-amd</artifactId>
<version>1.7.1-alpha-1</version>
<type>js</type>
</dependency>
<dependency>
<groupId>org.codehaus.mojo</groupId>
<artifactId>jquery-ui-amd</artifactId>
<version>1.8.16-alpha-1</version>
<type>js</type>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>$(org.springframework.version)</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>$(org.springframework.version)</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>$(org.hibernate.version)</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-annotations</artifactId>
<version>$(org.hibernate.version)</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>$(org.hibernate.version)</version>
</dependency>
<dependency>
<groupId>org.hibernate.javax.persistence</groupId>
<artifactId>hibernate-jpa-2.0-api</artifactId>
<version>1.0.0.Final</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.5.8</version>
</dependency>
<dependency>
<groupId>org.hsqldb</groupId>
<artifactId>hsqldb</artifactId>
<version>1.8.10</version>
</dependency>
<dependency>
<groupId>c3p0</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.1.2</version>
</dependency>
</dependencies>
<build>
<extensions>
<extension>
<groupId>org.codehaus.mojo</groupId>
<artifactId>javascript-maven-plugin</artifactId>
<version>2.0.0-alpha-1</version>
</extension>
</extensions>
</build>
<!-- FIXME: Temporary declaration of Codehaus repos until this moves to Maven Central -->
<repositories>
<repository>
<id>JBoss</id>
<name>JBoss Repsitory</name>
<layout>default</layout>
<url>http://repository.jboss.org/maven2</url>
</repository>
<repository>
<id>snapshots</id>
<url>https://nexus.codehaus.org/content/repositories/snapshots/</url>
<releases>
<enabled>false</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>snapshots</id>
<url>https://nexus.codehaus.org/content/repositories/snapshots/</url>
<releases>
<enabled>false</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
i've taken it from some online tutorial for building hibernate-gwt-maven project

It proably means you do not have javascript-maven-plugin-2.0.0-alpha-1.jar and aether-util-1.11.jar in your local or global maven repos.
You can find available javascript-maven-plugin and aether-util version at central repo here. Try downloading and installing them to your local m2 repo.
Note - They seem to be optional and I believe you can ditch the extension tag entirely from build tag. They might only help in compressing/cleaning up jquery js files ( ignore them for now )