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.

Vaadin doesn't compiles Widgetset after adding googlemaps vaadin library

Today I tried to add a googlemaps library to my vaadin project.
I added the required dependency to my pom.xml, but however after I added the library, maven doesn't wanted to recompile my widgetset, because of this error:
Tracing compile failure path for type 'com.vaadin.tapio.googlemaps.client.GoogleMapConnector'
[INFO] [ERROR] Errors in 'jar:file:/C:/Users/kolbm/.m2/repository/com/vaadin/tapio/googlemaps/2.0.0/googlemaps-2.0.0.jar!/com/vaadin/tapio/googlemaps/client/GoogleMapConnector.java'
[INFO] [ERROR] Line 202: The return type is incompatible with AbstractComponentConnector.getState()
[INFO] [ERROR] Line 203: Cannot cast from AbstractComponentState to GoogleMapState
[INFO] [ERROR] Errors in 'jar:file:/C:/Users/kolbm/.m2/repository/com/vaadin/tapio/googlemaps/2.0.0/googlemaps-2.0.0.jar!/com/vaadin/tapio/googlemaps/client/GoogleMapState.java'
[INFO] [ERROR] Line 9: The import com.vaadin.shared.ui.AbstractComponentContainerState cannot be resolved
[INFO] [ERROR] Line 19: AbstractComponentContainerState cannot be resolved to a type
[INFO] Tracing compile failure path for type 'com.vaadin.tapio.googlemaps.client.GoogleMapState'
[INFO] [ERROR] Errors in 'jar:file:/C:/Users/kolbm/.m2/repository/com/vaadin/tapio/googlemaps/2.0.0/googlemaps-2.0.0.jar!/com/vaadin/tapio/googlemaps/client/GoogleMapState.java'
[INFO] [ERROR] Line 9: The import com.vaadin.shared.ui.AbstractComponentContainerState cannot be resolved
[INFO] [ERROR] Line 19: AbstractComponentContainerState cannot be resolved to a type
[INFO] [ERROR] Aborting compile due to errors in some input files
Here is my POM:
<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>xxx</groupId>
<artifactId>xxx</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>client</name>
<prerequisites>
<maven>3</maven>
</prerequisites>
<properties>
<vaadin.version>7.7.3</vaadin.version>
<vaadin.plugin.version>7.7.3</vaadin.plugin.version>
<jetty.plugin.version>9.3.9.v20160517</jetty.plugin.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<!--<vaadin.widgetset.mode>local</vaadin.widgetset.mode>-->
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-bom</artifactId>
<version>${vaadin.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>com.vaadin.tapio</groupId>
<artifactId>googlemaps</artifactId>
<version>2.0.0</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.0.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-server</artifactId>
</dependency>
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-themes</artifactId>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpmime</artifactId>
<version>4.3.6</version>
</dependency>
<dependency>
<groupId>org.json</groupId>
<artifactId>json</artifactId>
<version>20140107</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.8.5</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-annotations -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.8.5</version>
</dependency>
<!-- https://mvnrepository.com/artifact/junit/junit -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>info.cukes</groupId>
<artifactId>cucumber-java</artifactId>
<version>1.2.5</version>
</dependency>
<dependency>
<groupId>org.seleniumhq.selenium</groupId>
<artifactId>selenium-java</artifactId>
<version>2.47.1</version>
</dependency>
</dependencies>
<build>
<testSourceDirectory>${project.basedir}/src/test</testSourceDirectory>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.6</version>
<configuration>
<failOnMissingWebXml>false</failOnMissingWebXml>
<!-- Exclude an unnecessary file generated by the GWT compiler. -->
<packagingExcludes>WEB-INF/classes/VAADIN/widgetsets/WEB-INF/**</packagingExcludes>
</configuration>
</plugin>
<plugin>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-maven-plugin</artifactId>
<version>${vaadin.plugin.version}</version>
<configuration>
<webappDirectory>${basedir}/target/classes/VAADIN/widgetsets</webappDirectory>
<persistentunitcachedir>${basedir}/target/tmp/gwt-unitCache</persistentunitcachedir>
</configuration>
<executions>
<execution>
<goals>
<goal>resources</goal>
<goal>update-widgetset</goal>
<goal>update-theme</goal>
<goal>compile</goal>
<!-- Comment out compile-theme goal to use on-the-fly theme compilation -->
<goal>compile-theme</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-clean-plugin</artifactId>
<version>3.0.0</version>
<!-- Clean up also any pre-compiled themes -->
<configuration>
<filesets>
<fileset>
<directory>src/main/webapp/VAADIN/themes</directory>
<includes>
<include>**/styles.css</include>
<include>**/styles.scss.cache</include>
</includes>
</fileset>
</filesets>
</configuration>
</plugin>
<!-- The Jetty plugin allows us to easily test the development build by
running jetty:run on the command line. -->
<plugin>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-maven-plugin</artifactId>
<version>9.4.0.RC2</version>
<configuration>
<scanIntervalSeconds>2</scanIntervalSeconds>
<webApp>
<contextPath>/</contextPath>
</webApp>
<scanTargets>
<scanTarget>
target/classes
</scanTarget>
</scanTargets>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.20</version>
<configuration>
<includes>
<include>**/Test*.java</include>
<include>**/test*.java</include>
</includes>
</configuration>
</plugin>
</plugins>
</build>
<profiles>
<profile>
<!-- Vaadin pre-release repositories -->
<id>vaadin-prerelease</id>
<activation>
<activeByDefault>false</activeByDefault>
</activation>
<repositories>
<repository>
<id>vaadin-addons</id>
<url>http://maven.vaadin.com/vaadin-addons</url>
</repository>
<repository>
<id>vaadin-prereleases</id>
<url>http://maven.vaadin.com/vaadin-prereleases</url>
</repository>
<repository>
<id>vaadin-snapshots</id>
<url>https://oss.sonatype.org/content/repositories/vaadin-snapshots/</url>
<releases>
<enabled>false</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>vaadin-prereleases</id>
<url>http://maven.vaadin.com/vaadin-prereleases</url>
</pluginRepository>
<pluginRepository>
<id>vaadin-snapshots</id>
<url>https://oss.sonatype.org/content/repositories/vaadin-snapshots/</url>
<releases>
<enabled>false</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
</profile>
</profiles>
Hope somebody knows what to do, because I found nothing on the internet...

You are using vaadin 7 but version 2.0.0 of googlemaps addon is targeted to vaadin 8.
Try using version 1.3.4 of googlemaps addon

tomcat 8 war: Class is not mapped

I'm trying to create a war file, and the push that to my tomcat8 webserver.
The problem is, that tomcat throws the following error while trying to access the webapp:
java.io.FileNotFoundException: /var/lib/tomcat8/webapps/tdc-stress-test-2.0-Web.war!/WEB-INF/classes (No such file or directory)
then after comes:
java.lang.IllegalArgumentException: org.hibernate.hql.internal.ast.QuerySyntaxException: Basedevice is not mapped [Select t from Basedevice t]
The database is located on the server on which I have pushed the war-file. The persistence.xml is configured to use the database on the server.
This works fine if I run it by jetty::run local, but not when I push it to the server.
What is going on?
The plugin for creating the war:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.6</version>
<configuration>
<failOnMissingWebXml>false</failOnMissingWebXml>
<!-- Exclude an unnecessary file generated by the GWT compiler. -->
<packagingExcludes>WEB-INF/classes/VAADIN/widgetsets/WEB-INF/**</packagingExcludes>
</configuration>
</plugin>
The full one:
<?xml version="1.0" encoding="UTF-8"?>
http://maven.apache.org/xsd/maven-4.0.0.xsd">
4.0.0
<groupId>tdc.otva.stress</groupId>
<artifactId>tdc-stress-test</artifactId>
<packaging>war</packaging>
<version>2.0-Web</version>
<name>tdc-stress-test</name>
<prerequisites>
<maven>3</maven>
</prerequisites>
<properties>
<vaadin.version>7.7.4</vaadin.version>
<vaadin.plugin.version>7.7.4</vaadin.plugin.version>
<jetty.plugin.version>9.3.9.v20160517</jetty.plugin.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<!-- If there are no local customisations, this can also be "fetch" or "cdn" -->
<vaadin.widgetset.mode>local</vaadin.widgetset.mode>
</properties>
<repositories>
<repository>
<id>vaadin-addons</id>
<url>http://maven.vaadin.com/vaadin-addons</url>
</repository>
</repositories>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-bom</artifactId>
<version>${vaadin.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.hamcrest</groupId>
<artifactId>hamcrest-library</artifactId>
<version>1.3</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.0.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-server</artifactId>
</dependency>
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-push</artifactId>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>5.2.1.Final</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.37</version>
</dependency>
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-client-compiled</artifactId>
</dependency>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-core</artifactId>
<version>2.6.3</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.rxtx/rxtx -->
<dependency>
<groupId>org.rxtx</groupId>
<artifactId>rxtx</artifactId>
<version>2.1.7</version>
</dependency>
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-themes</artifactId>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.6</version>
<configuration>
<failOnMissingWebXml>false</failOnMissingWebXml>
<!-- Exclude an unnecessary file generated by the GWT compiler. -->
<packagingExcludes>WEB-INF/classes/VAADIN/widgetsets/WEB-INF/**</packagingExcludes>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>tomcat-maven-plugin</artifactId>
<configuration>
<url>http://xxxx.xxx.net:8080/manager/text</url>
<username>admin</username>
<password>admin123</password>
<path>/HelloWorld</path>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-maven-plugin</artifactId>
<version>${vaadin.plugin.version}</version>
<executions>
<execution>
<goals>
<goal>update-theme</goal>
<goal>update-widgetset</goal>
<goal>compile</goal>
<!-- Comment out compile-theme goal to use on-the-fly theme compilation -->
<goal>compile-theme</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-clean-plugin</artifactId>
<version>3.0.0</version>
<!-- Clean up also any pre-compiled themes -->
<configuration>
<filesets>
<fileset>
<directory>src/main/webapp/VAADIN/themes</directory>
<includes>
<include>**/styles.css</include>
<include>**/styles.scss.cache</include>
</includes>
</fileset>
</filesets>
</configuration>
</plugin>
<!-- The Jetty plugin allows us to easily test the development build by
running jetty:run on the command line. -->
<plugin>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-maven-plugin</artifactId>
<version>${jetty.plugin.version}</version>
<configuration>
<scanIntervalSecScreenshot from 2017-03-31 12-42-18onds>2</scanIntervalSeconds>
</configuration>
</plugin>
</plugins>
</build>
<profiles>
<profile>
<!-- Vaadin pre-release repositories -->
<id>vaadin-prerelease</id>
<activation>
<activeByDefault>false</activeByDefault>
</activation>
<repositories>
<repository>
<id>vaadin-prereleases</id>
<url>http://maven.vaadin.com/vaadin-prereleases</url>
</repository>
<repository>
<id>vaadin-snapshots</id>
<url>https://oss.sonatype.org/content/repositories/vaadin-snapshots/</url>
<releases>
<enabled>false</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>vaadin-prereleases</id>
<url>http://maven.vaadin.com/vaadin-prereleases</url>
</pluginRepository>
<pluginRepository>
<id>vaadin-snapshots</id>
<url>https://oss.sonatype.org/content/repositories/vaadin-snapshots/</url>
<releases>
<enabled>false</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
</profile>
</profiles>
The War does contain the /classes.
Best regardsScreenshot from 2017-03-31 12-42-18

Tapestry + JDO + GAE

I tried to run Tapestry on GAE. After some time, I was able to resolve the last errors to display at least a simple page. But, to be honest, some sort of data-storage would be nice.
I tried to use tapestry-jdo, but there is my Problem: Im unable to use any part of JDO, and I have tried for days.
I will post my pom.xml, on which I have worked. I tried a lot of combinations for the version numbers, but mostly the actionlink to test JDO fails, because org.datanucleus.store.appengine.jdo.DatastoreJDOPersistenceManagerFactory is not found.
The rest of the time, I got an uncaught exception from tapestry, caused by another missing JDO class, but this time not while the construction of the JDOEntityManagerSource, instead somewhere deeper.
I havent learned programming, I teached it to myself, so my maven knowledge is limited.
This pom.xml may contain needles entries.
If i build it with maven, i get Could not transfer metadata asm:asm/maven-metadata.xml from/to local.repository (file:../../local.repository/trunk): No connector available to access repository local.repository under some circumstandes.
<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0">
<modelVersion>4.0.0</modelVersion>
<groupId>com.example</groupId>
<artifactId>Example</artifactId>
<version>0.1</version>
<packaging>war</packaging>
<name>Example</name>
<dependencies>
<dependency>
<groupId>org.apache.tapestry</groupId>
<artifactId>tapestry-core</artifactId>
<version>${tapestry-release-version}</version>
</dependency>
<dependency>
<groupId>com.google.appengine</groupId>
<artifactId>appengine-api-labs</artifactId>
<version>${gae.version}</version>
</dependency>
<dependency>
<groupId>com.google.appengine</groupId>
<artifactId>appengine-api-1.0-sdk</artifactId>
<version>${gae.version}</version>
</dependency>
<dependency>
<groupId>com.google.appengine</groupId>
<artifactId>appengine-java-sdk</artifactId>
<version>${gae.version}</version>
<type>pom</type>
</dependency>
<dependency>
<groupId>javax.jdo</groupId>
<artifactId>jdo2-api</artifactId>
<version>2.3-eb</version>
</dependency>
<dependency>
<groupId>com.google.appengine.orm</groupId>
<artifactId>datanucleus-appengine</artifactId>
<version>2.0.0-RC3</version>
</dependency>
<dependency>
<groupId>org.datanucleus</groupId>
<artifactId>datanucleus-rdbms</artifactId>
<version>${datanucleus.version}</version>
</dependency>
<dependency>
<groupId>org.datanucleus</groupId>
<artifactId>datanucleus-core</artifactId>
<version>${datanucleus.version}</version>
</dependency>
<dependency>
<groupId>org.tynamo</groupId>
<artifactId>tapestry-jdo</artifactId>
<version>0.0.1</version>
</dependency>
<!-- Provided by the servlet container, but sometimes referenced in the application code. -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
</dependencies>
<build>
<finalName>Example</finalName>
<plugins>
<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>
<optimize>true</optimize>
</configuration>
</plugin>
<plugin>
<groupId>net.kindleit</groupId>
<artifactId>maven-gae-plugin</artifactId>
<version>0.6.0</version>
<configuration>
<serverId>appengine.google.com</serverId>
</configuration>
</plugin>
<!--
This plug-in "enhances" your domain model objects (i.e.
makes them persistent for datanucleus)
-->
<plugin>
<groupId>org.datanucleus</groupId>
<artifactId>maven-datanucleus-plugin</artifactId>
<version>1.1.4</version>
<configuration>
<mappingIncludes>**/entities/*.class</mappingIncludes><!--*/ just to stop formatig the rest of the code as comment-->
<verbose>true</verbose>
<enhancerName>ASM</enhancerName>
<api>JDO</api>
</configuration>
<executions>
<execution>
<phase>compile</phase>
<goals>
<goal>enhance</goal>
</goals>
</execution>
</executions>
<dependencies>
<dependency>
<groupId>org.datanucleus</groupId>
<artifactId>datanucleus-core</artifactId>
<version>${datanucleus.version}</version>
<exclusions>
<exclusion>
<groupId>javax.transaction</groupId>
<artifactId>transaction-api</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.datanucleus</groupId>
<artifactId>datanucleus-rdbms</artifactId>
<version>${datanucleus.version}</version>
</dependency>
<dependency>
<groupId>org.datanucleus</groupId>
<artifactId>datanucleus-enhancer</artifactId>
<version>1.1.4</version>
</dependency>
</dependencies>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>tapestry-snapshots</id>
<url>http://repository.apache.org/snapshots/</url>
</repository>
<repository>
<id>codehaus.snapshots</id>
<url>http://snapshots.repository.codehaus.org</url>
</repository>
<repository>
<id>maven-gae-plugin-repo</id>
<name>Maven Google App Engine Repository</name>
<url>http://maven-gae-plugin.googlecode.com/svn/repository/</url>
</repository>
<repository>
<id>data-nucleus</id>
<url>http://www.datanucleus.org/downloads/maven2/</url>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>tapestry-snapshots</id>
<url>http://repository.apache.org/snapshots/</url>
</pluginRepository>
<pluginRepository>
<id>maven-gae-plugin-repo</id>
<name>maven-gae-plugin repository</name>
<url>http://maven-gae-plugin.googlecode.com/svn/repository</url>
</pluginRepository>
</pluginRepositories>
<properties>
<tapestry-release-version>5.3.2</tapestry-release-version>
<gae.version>1.6.3</gae.version>
<datanucleus.version>1.1.5</datanucleus.version>
</properties>
</project>

The datanucleus-appengine plugin v2 ought to be used with DataNucleus jars v3.0.* and with javax.jdo jdo-api v3.0.1 ... as per the docs for GAE at
http://code.google.com/p/datanucleus-appengine/wiki/UpgradingToVersionTwo

Project Vaadin with Maven

I am busy developing a Vaadin with Maven project. I would like to integrate Hibernate with this project, but I can't do it.
I've added the dependencies and libraries, but Hibernate does not work.
This is the 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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.bd</groupId>
<artifactId>achrefvaadin</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>Vaadin Web Application</name>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<vaadin.version>6.7.0</vaadin.version>
<gwt.version>2.3.0</gwt.version>
<gwt.plugin.version>2.2.0</gwt.plugin.version>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.5</source>
<target>1.5</target>
</configuration>
</plugin>
<plugin>
<groupId>org.mortbay.jetty</groupId>
<artifactId>maven-jetty-plugin</artifactId>
<version>6.1.24</version>
<configuration>
<stopPort>9966</stopPort>
<stopKey>achrefvaadin</stopKey>
<!-- Redeploy every x seconds if changes are detected, 0 for no automatic redeployment -->
<scanIntervalSeconds>0</scanIntervalSeconds>
<!-- make sure Jetty also finds the widgetset -->
<webAppConfig>
<contextPath>/achrefvaadin</contextPath>
<baseResource implementation="org.mortbay.resource.ResourceCollection">
<!-- Workaround for Maven/Jetty issue http://jira.codehaus.org/browse/JETTY-680 -->
<!-- <resources>src/main/webapp,${project.build.directory}/${project.build.finalName}</resources> -->
<resourcesAsCSV>src/main/webapp,${project.build.directory}/${project.build.finalName}</resourcesAsCSV>
</baseResource>
</webAppConfig>
</configuration>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>vaadin-snapshots</id>
<url>http://oss.sonatype.org/content/repositories/vaadin-snapshots/</url>
<releases>
<enabled>false</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
<repository>
<id>vaadin-addons</id>
<url>http://maven.vaadin.com/vaadin-addons</url>
</repository>
</repositories>
<dependencies>
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>vaadin</artifactId>
<version>${vaadin.version}</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>3.3.2.GA</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-annotations</artifactId>
<version>3.4.0.GA</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-commons-annotations</artifactId>
<version>3.3.0.ga</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>3.4.0.GA</version>
</dependency>
</dependencies>
</project>
Can you help me?

Try this pom:
<?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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.bd</groupId>
<artifactId>achrefvaadin</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>Vaadin Web Application</name>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<vaadin.version>6.7.0</vaadin.version>
<gwt.version>2.3.0</gwt.version>
<gwt.plugin.version>2.2.0</gwt.plugin.version>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.5</source>
<target>1.5</target>
</configuration>
</plugin>
<plugin>
<groupId>org.mortbay.jetty</groupId>
<artifactId>maven-jetty-plugin</artifactId>
<version>6.1.24</version>
<configuration>
<stopPort>9966</stopPort>
<stopKey>achrefvaadin</stopKey>
<!-- Redeploy every x seconds if changes are detected, 0 for no automatic redeployment -->
<scanIntervalSeconds>0</scanIntervalSeconds>
<!-- make sure Jetty also finds the widgetset -->
<webAppConfig>
<contextPath>/achrefvaadin</contextPath>
<baseResource implementation="org.mortbay.resource.ResourceCollection">
<!-- Workaround for Maven/Jetty issue http://jira.codehaus.org/browse/JETTY-680 -->
<!-- <resources>src/main/webapp,${project.build.directory}/${project.build.finalName}</resources> -->
<resourcesAsCSV>src/main/webapp,${project.build.directory}/${project.build.finalName}</resourcesAsCSV>
</baseResource>
</webAppConfig>
</configuration>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>vaadin-snapshots</id>
<url>http://oss.sonatype.org/content/repositories/vaadin-snapshots/</url>
<releases>
<enabled>false</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
<repository>
<id>vaadin-addons</id>
<url>http://maven.vaadin.com/vaadin-addons</url>
</repository>
</repositories>
<dependencies>
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>vaadin</artifactId>
<version>${vaadin.version}</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>3.4.0.GA</version>
</dependency>
</dependencies>
</project>
If you are including just hibernate-entitymanager Maven will download hibernate-core, hibernate-annotations and hibernate-commons-annotations on it's own in the right version.