We Keep Coding

NoClassDefFoundError as I run a Maven packaged JAR file

I am using Maven to compile and package a Java application from the command line:
mvn clean
mvn compile
mvn package
These commands run without a problem. But when I try to run the generated JAR file
java -jar target/JarFile.jar
I get the following error:
Error: Unable to initialize main class com.company.Main
Caused by: java.lang.NoClassDefFoundError: com/google/api/client/json/JsonFactory
Which is a class from an external dependency. These dependencies are also managed by Maven (i.e., I am not supplying them locally, but listing them in my POM file.) Since I am able to run the application inside the IDE, I assume I am missing a step to make the dependencies available to the JAR file. Here is my POM file:
<?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>
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
<groupId>test-maven-project</groupId>
<artifactId>test</artifactId>
<version>1.0</version>
<dependencies>
<dependency>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.1</version>
</dependency>
<dependency>
<groupId>com.google.oauth-client</groupId>
<artifactId>google-oauth-client</artifactId>
<version>1.30.6</version>
</dependency>
<dependency>
<groupId>com.google.http-client</groupId>
<artifactId>google-http-client</artifactId>
<version>1.34.2</version>
</dependency>
<dependency>
<groupId>com.google.api-client</groupId>
<artifactId>google-api-client</artifactId>
<version>1.30.9</version>
</dependency>
<dependency>
<groupId>com.google.http-client</groupId>
<artifactId>google-http-client-jackson2</artifactId>
<version>1.34.2</version>
</dependency>
<dependency>
<groupId>com.google.apis</groupId>
<artifactId>google-api-services-customsearch</artifactId>
<version>v1-rev20200401-1.30.9</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<!-- Build an executable JAR -->
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>3.1.0</version>
<configuration>
<archive>
<manifest>
<addClasspath>true</addClasspath>
<classpathPrefix>lib/</classpathPrefix>
<mainClass>com.company.Main</mainClass>
</manifest>
</archive>
</configuration>
</plugin>
</plugins>
</build>
</project>
Could you point me in the right direction so that the dependencies are accessible at runtime?

To run your jar from commandline, you must either explicitly specify the classpath on the command line or build an executable jar:
How can I create an executable JAR with dependencies using Maven?
BTW: mvn package already executes mvn compile, so you need not call mvn compile explicitly.

Use this in your pom.xml and rebuild your project.
<dependency>
<groupId>com.google.api.client</groupId>
<artifactId>google-api-client-json</artifactId>
<version>1.1.0-alpha</version>
</dependency>

Manually launched Spring Boot application from .jar not working properly

The problem is when I run .jar file(Spring Boot MVC app) from Intellij IDEA, application works fine, but when I try to run same file from the command line, template resolver cannot find template(.html) files. And this seems to be reasonable since when I opened .jar with file archiver I did not find any traces of that files.
How Intellij make it work proper? And how can I do the same?
My project structure:
here they are, in '/templates' folder
.jar file opened in archiver:
As I said, there is no .html files, so how Intellij add them when running .jar?
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.vlad.pet.contactlist</groupId>
<artifactId>web-app</artifactId>
<version>1.0-ALPHA</version>
<packaging>jar</packaging>
<name>web-app</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<java.version>1.8</java.version>
</properties>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.3.6.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>com.vlad.pet.contactlist</groupId>
<artifactId>model</artifactId>
<version>1.1-inmemory</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.thymeleaf.extras</groupId>
<artifactId>thymeleaf-extras-springsecurity4</artifactId>
<version>2.1.2.RELEASE</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>

A normal Spring Boot application built from http://start.spring.io would show the templates folder within the src/main/resources. This is because by default the contents of that folder are made available to the classpath and packaged at the root of the jar file. I am guessing you modified the project in IntelliJ to also pick up the src/main/webapp directory. Unfortunately that doesn't work when it comes to packaging the jar. You would need to work with the maven resources plugin to specify the additional directory to be included in the jar file.
My recommendation is to go to start.spring.io. Select Web and Thymeleaf as dependencies and then download the zip file. When you look in that file you will see the default structure along with settings for any plugins to make it work. Mirror that structure within you application.
If you don't have the ability to change the project structure then check out the maven-resources-plugin for specifics on how to add those directories.

You can see what exactly IntelliJ is doing, by looking at first line in its console after running app. There should be full command called by IntelliJ.
And how .jar is build? Maven/Gradle? maybe there's some problem with pom/build script
It should be comment, but my reputation is too low

Try to use the plugin to generate an executable jar:
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<executable>true</executable>
</configuration>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
After building the jar (e.g. mvn clean install), you can run the jar as java -jar ./target/project.jar

Maven is not automatically building default folder path in eclipse

I am using Eclipse Indigo. I installed the maven package on eclipse. I configured the Pom and nearly everything is fine. Just maven is not building the default folder bath
src/main/java
Here is the 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>TestProject</groupId>
<artifactId>TestProject</artifactId>
<version>0.0.1-SNAPSHOT</version>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.5.6</version>
</dependency>
<dependency>
<groupId>com.lowagie</groupId>
<artifactId>itext</artifactId>
<version>2.0.7</version>
</dependency>
</dependencies>
<build>
<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>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-eclipse-plugin</artifactId>
<version>2.6</version>
<configuration>
<ajdtVersion>1.6</ajdtVersion>
</configuration>
</plugin>
</plugins>
</build>
</project>
I cleaned the project,installed and build it.... also I upgradet the project... the dependencies are all fine... no error at all.. why isn't the folder build ?

Eclipse's integration with maven is (to say at least) appalling. If you want to create a new project: create the pom and the folders, and then run mvn eclipse:eclipse to create the project files for eclipse. The simple solution that I've followed for a couple of years is to use the community edition of Intellij.
Aswering your second question: well... again, the integration is so poor that sometimes you'll need to close and reopen the project for eclipse to read the new changes. Most of the time, a refresh + clean project will force eclipse to read the project configuration.

I'm having troubles to compile a maven project

I've imported my project into Eclipse (Helios + m2eclipse), and also into Netbeans (7.0) and in both IDEs one of the troubles is:
This is what I get in Netbeans when I try to build.
The project com.miCompany:myProject:1.0 (.....) has 1 error
Unresolveable build extension: Plugin
org.apache.axis2:axis2-wsdl2code-maven-plugin:1.3
or one of its dependencies could not
be resolved: Failed to collect
dependencies for
org.apache.axis2:axis2-wsdl2code-maven-plugin:jar:1.3
(): Failed to read artifact descriptor
for
org.apache.woden:woden:jar:1.0-incubating-M7b:
Could not transfer artifact
org.apache.woden:woden:pom:1.0-incubating-M7b
from/to jibx
(http://jibx.sourceforge.net/maven):
No connector available to access
repository jibx
(http://jibx.sourceforge.net/maven) of
type legacy using the available
factories
WagonRepositoryConnectorFactory ->
[Help 2]
This is what I get in Eclipse:
Project build error: Unresolveable build extension: Plugin
org.apache.axis2:axis2-wsdl2code-maven-plugin:1.3
or one of its dependencies could not
be resolved: Failed to collect
dependencies for
org.apache.axis2:axis2-wsdl2code-maven-plugin:jar:1.3
() pom.xml /myProject line 1 Maven
Problem
In Eclipse I've downloaded this: http://www.apache.org/dyn/mirrors/mirrors.cgi/axis/axis2/java/core/1.5.4/axis2-eclipse-service-plugin-1.5.4.zip unzipped and copied the file: "org.apache.axis2.eclipse.codegen.plugin_1.5.4.jar" into the directory "plugins" of my Eclipse instalation. And I still getting the same error.
I am running Netbeans over Win XP and Eclipse over Win XP and also over Mac, allways the same error.
Does somebody have any idea what can I do?
Here goes my pom.xml
<?xml version="1.0"?>
<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<modelVersion>4.0.0</modelVersion>
<parent>
<artifactId>MyParent</artifactId>
<groupId>com.mycompany</groupId>
<version>1.0</version>
</parent>
<groupId>com.mycompany</groupId>
<artifactId>myModule</artifactId>
<version>1.0</version>
<name>myModule</name>
<url>http://maven.apache.org</url>
<build>
<plugins>
<plugin>
<artifactId>maven-clean-plugin</artifactId>
<configuration>
<filesets>
<fileset>
<directory>src/main/java</directory>
<includes>
<include>com/mycompany/client/*.java</include>
</includes>
</fileset>
</filesets>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.axis2</groupId>
<artifactId>axis2-wsdl2code-maven-plugin</artifactId>
<version>1.3</version>
<extensions>true</extensions>
<executions>
<execution>
<phase>generate-sources</phase>
<goals>
<goal>wsdl2code</goal>
</goals>
</execution>
</executions>
<configuration>
<packageName>com.mycompany.client</packageName>
<wsdlFile>src/main/axis2/MyWsdl.wsdl</wsdlFile>
<outputDirectory>.</outputDirectory>
<targetResourcesFolderLocation>target/main/axis2</targetResourcesFolderLocation>
<targetSourceFolderLocation>src/main/java</targetSourceFolderLocation>
<namespaceURIs>
<namespaceURI>
<uri>http://schema.mycompany.com/Esb</uri>
<packageName>com.mycompany.services.Esbsrv.schema</packageName>
</namespaceURI>
<namespaceURI>
<uri>http://wsdl.mycompany.com/Esb</uri>
<packageName>com.mycompany.services.Esbsrv.schema</packageName>
</namespaceURI>
<namespaceURI>
<uri>http://schema.mycompany.com/Global/WSException</uri>
<packageName>com.mycompany.schema.global.wsexception</packageName>
</namespaceURI>
</namespaceURIs>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<!--
<dependency>
<groupId>wsdl4j</groupId>
<artifactId>wsdl4j</artifactId>
<version>1.6.2</version>
<scope>compile</scope>
</dependency>
-->
<dependency>
<groupId>org.apache.axis2</groupId>
<artifactId>axis2-adb</artifactId>
<version>1.3</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.apache.axis2</groupId>
<artifactId>axis2-kernel</artifactId>
<version>1.3</version>
<scope>compile</scope>
</dependency>
<!--
<dependency>
<groupId>org.apache.axis2</groupId>
<artifactId>axis2-xmlbeans</artifactId>
<version>1.3</version>
<scope>compile</scope>
</dependency>
-->
</dependencies>
</project>

Well, I can only offer suggestions as I"m not much of a maven expert, but I did just have to do this today and it was pretty straightforward for me -
set up the maven project to be eclipse friendly : mvn eclipse:eclipse
make sure eclipse can see the libs. this meant going to the projectsetup/buildpath/libraries editor in eclipse and adding the variable M2_REPO to point to your local maven repository (e.g. something like /home/nacho3d/.m2/repository)
Your error, actually, looks to me like maven can't find a dependency for axis. The specifics for that should be on the axis website,

I think you're using maven 3.0+, right?
That pom(org.apache.woden:woden:jar:1.0-incubating-M7b) isn't compatible with maven 3 yet.
If you use maven 2.2.1 to build ESB 4.3.0-03 source, then it would be successfully.

If you have the jar of the missing dependency you can:
1) deploy it on your maven repository, if you have one
2) declare the dependency in your pom with a scope of 'system': check this out

I have also faced the same problem and fixed it by following below step...
In you project directory do the command: mvn eclipse:eclipse
In eclipse project right click->Maven->Update Project.
Again right click->Maven->Disable Maven Nature
Restart eclipse.
Right click on project->Configure->Convert to Maven Project.
Finish. Error will gone.
Thanks

Question about maven

I read some useful posts here on SO about previous maven questions, I'm currently very interested in learning maven(cause I like it and because my boss requires me to). I'm currently reading [this][1] book and I'm working my way trough examples. Its a straightforward book but its has some errors inside(trivial ones), yet for a newbie like me can be hard to spot, once spotted it can be easily fixed. Is there any other book better to understand maven from top to bottom?
Second part of the question is relating an example in this book, maybe a simple explanations would resolve my doubts.
Here is the thing, I made a simple-weather project in java which retrieves the weather conditions from yahoo weather server, given the particular zip code it returns weather information.
Then I made an 'simple-webapp'(with maven as well as the one above I forgot to mention that), which is basicaly a web project which has some default servlet already there with maven and it does nothing.
And I have some parent-project I wanna merge those two projects into one, so I made a pom.xml which has 2 modules , 1 to retrieve info(java project) and other to display it on the web (web app).
I made everything work at the end, but here is the odd thing .. if I make webapp display any string "name" lets say then build it independently, it does exactly print that string. But when I put the webapp in the "parent-project" and change this string to "name1" and build it as sa partent-project sub module.. nothing changes ..
So I go back to the point, because simple-webapp is dependent on simple-weather I can't build it anymore on its own, so now if I wanna make some changes to the webapp.. modify the webapp outside the "parent-project" build it there then paste it back to the parent-project and then the changes will apply, why is that, why can't I directly change the servlet content/or add another one in the webapp as the part of the "parent-project"?
Thank you.. I know its a long and boring question, but I'm just trying to learn things and there is no better place to ask than here :D
EDIT - HERE ARE POM FILES FOR EACH PROJECT :
1. simple-parent 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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.sonatype.mavenbook.multi</groupId>
<artifactId>simple-parent</artifactId>
<packaging>pom</packaging>
<version>1.0</version>
<name>Multi Chapter Simple Parent Project</name>
<modules>
<module>simple-weather</module>
<module>simple-webapp</module>
</modules>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.5</source>
<target>1.5</target>
</configuration>
</plugin>
</plugins>
</pluginManagement>
</build>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
</dependencies>
</project>
2. simple-weather 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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.sonatype.mavenbook.multi</groupId>
<artifactId>simple-parent</artifactId>
<version>1.0</version>
</parent>
<artifactId>simple-weather</artifactId>
<packaging>jar</packaging>
<name>Multi Chapter Simple Weather API</name>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<configuration>
<testFailureIgnore>true</testFailureIgnore>
</configuration>
</plugin>
</plugins>
</pluginManagement>
</build>
<dependencies>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.14</version>
</dependency>
<dependency>
<groupId>dom4j</groupId>
<artifactId>dom4j</artifactId>
<version>1.6.1</version>
</dependency>
<dependency>
<groupId>jaxen</groupId>
<artifactId>jaxen</artifactId>
<version>1.1.1</version>
</dependency>
<dependency>
<groupId>velocity</groupId>
<artifactId>velocity</artifactId>
<version>1.5</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-io</artifactId>
<version>1.3.2</version>
<scope>test</scope>
</dependency>
</dependencies>
</project>
3. simple-webapp 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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.sonatype.mavenbook.multi</groupId>
<artifactId>simple-parent</artifactId>
<version>1.0</version>
</parent>
<artifactId>simple-webapp</artifactId>
<packaging>war</packaging>
<name>simple-webapp Maven Webapp</name>
<dependencies>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.4</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.sonatype.mavenbook.multi</groupId>
<artifactId>simple-weather</artifactId>
<version>1.0</version>
</dependency>
</dependencies>
<build>
<finalName>simple-webapp</finalName>
<plugins>
<plugin>
<groupId>org.mortbay.jetty</groupId>
<artifactId>maven-jetty-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>

I am not sure to completely understand your question. However, let's explain some principles in Maven.
So you have such a structure:
parent
+ simple-weather
+ simple-webapp
On a Maven point of view, we have 3 projects here:
parent, which is a pom project (i.e. its packaging attribute is set to pom)
simple-weather, which is a jar project and has parent as parent.
simple-webapp, which is a war project, has parent as parent and simple-weather as dependency.
The parent projects uses two concepts in Maven:
The inheritance, which say that all of his children (simple-weather and simple-webapp) will inherit all of his properties (this concept is almost the same thing as the extends in Java).
The aggregation, which is defined by the definition of <modules>. Aggregation means that every command that will be run on the project will also be run on each module.
What happen if I build (using mvn clean install) on the parent directory?
Maven will "compile" the parent project and then install the pom.xml in the local repository.
Maven will compile the simple-weather project, but as it has a parent, Maven will look the parent pom.xml file into the local repository. Once the JAR is created, it is installed in the local repository.
Maven will finally compile the simple-webapp project. Maven will do the same thing for the parent pom.xml, but also for the simple-weather project.
The situtation explained in the 3rd point is important: If you want to build the simple-webapp project, Maven will always try to find all of his dependencies - including simple-weather - from the local (or distant) repository.
That's why if you build only the simple-webapp without building and installing simple-weather, Maven will not find the latter project, or will find an older version.
So to summarize, when you work on multi-modules project with Maven, try to always run the build and install commands from the root (or parent) directory.
I hope that this explanation is clear enough and help you to understand what happen in your case. Do not hesitate to ask more information...