I created a Google App Engine maven project according to this documentation and it works successfully. Then after i import the same project into eclipse by using the option Existing Maven Project . But in eclipse its only just maven project without having java facet.Then i manually added facet by right clicking Project -> Properties -> Project Facet -> Tick on java option. Now eclipse shows java errors on my created application (for some app engine related classes). But this project works fine by using maven command like mvn clean install and mvn appengine:devserver. Here follows the pom for my maven project
<?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>com.google.appengine.demos</groupId>
<artifactId>guestbook</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>pom</packaging>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<appengine.target.version>1.9.0</appengine.target.version>
</properties>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>com.google.appengine</groupId>
<artifactId>appengine-maven-plugin</artifactId>
<version>${appengine.target.version}</version>
</plugin>
</plugins>
</pluginManagement>
</build>
<modules>
<module>guestbook-war</module>
<module>guestbook-ear</module>
</modules>
</project>
You do not appear to have any dependencies in you pom. These define the libraries your application depend on. Minimally, for an appengine war, you'll need something like this:
<dependencies>
<!-- Servlet dependencies -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.el</groupId>
<artifactId>javax.el-api</artifactId>
<version>2.2.4</version>
<scope>provided</scope>
</dependency>
<!-- GAE Dependencies -->
<dependency>
<groupId>com.google.appengine</groupId>
<artifactId>appengine-api-1.0-sdk</artifactId>
<version>${gae.version}</version>
<scope>compile</scope>
</dependency>
</dependencies>
If you also want to do some unit testing, you'll need to add the following to the above block:
<!-- Test Dependencies -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.hamcrest</groupId>
<artifactId>hamcrest-all</artifactId>
<version>1.3</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-all</artifactId>
<version>1.9.5</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.google.appengine</groupId>
<artifactId>appengine-testing</artifactId>
<version>${gae.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.google.appengine</groupId>
<artifactId>appengine-api-stubs</artifactId>
<version>${gae.version}</version>
<scope>test</scope>
</dependency>
If you want to work in eclipse, make sure you have the wtp-m2e eclipse plugin installed, and the Google Plugin for Eclipse plugin installed. They'll make your life much easier.
Related
I'm having some issues with Eclipse, Maven, Java 8 and App Engine Standard Environment project.
After creating another project that requires Java 11, it seems that Eclipse or Maven is struggling to work correctly.
The main error I get in markers Eclipse tab that is impeding me to deploy or launch a local environment is:
App Engine Java Standard Environment JRE8 requires Dynamic Web Module with version matching expression "[2.5-3.1]"
Eclipse Project Facets are correctly configured. Dynamic Web Module version 2.5, App Engine Standar using Java 1.8
Project build path points to jdk1.8.0_211. Compiler too.
Nothing changed in the project recently. Error appeared after doing Maven -> Update project.
I tried every change suggested in Google but nothing seems to change.
I tried creating another workspace which worked (even reinstalling Eclipse) for 24 hours. After that, sudenly the error appeared again.
What should I try next? This problem is stopping me from working...
Edit:
Maven commands work fine, clean, install, package.
Also deploying (appengine:deploy) works but throws many errors of missing classes.
I cannot deploy the application through Google Cloud Tools extension in Eclipse because of Maven configuration errors.
Local server (Eclipse launching) throws many exceptions of missing classes.
Local server (Maven launching) fails to run with this error:
File exists
Maven Update project and install package outputs different compiled classes at target directory, don't know why
PD: Replaced some project naming with placeholders.
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>
<packaging>war</packaging>
<artifactId>artifact-module</artifactId>
<name>name-module</name>
<parent>
<groupId>parent</groupId>
<artifactId>parent</artifactId>
<version>1.0</version>
</parent>
<properties>
<appengine.maven.plugin.version>2.4.0</appengine.maven.plugin.version>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<endpoints.project.id>projectid</endpoints.project.id>
<maven.compiler.showDeprecation>true</maven.compiler.showDeprecation>
</properties>
<prerequisites>
<maven>3.0</maven>
</prerequisites>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>com.google.cloud</groupId>
<artifactId>libraries-bom</artifactId>
<version>20.4.0</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<!-- https://mvnrepository.com/artifact/com.google.endpoints/endpoints-management-control-appengine -->
<dependency>
<groupId>com.google.endpoints</groupId>
<artifactId>endpoints-management-control-appengine</artifactId>
<version>1.0.14</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.google.endpoints/endpoints-framework -->
<dependency>
<groupId>com.google.endpoints</groupId>
<artifactId>endpoints-framework</artifactId>
<version>2.2.2</version>
</dependency>
<dependency>
<groupId>com.google.appengine</groupId>
<artifactId>appengine-api-1.0-sdk</artifactId>
<version>1.9.88</version>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>4.0.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.inject</groupId>
<artifactId>javax.inject</artifactId>
<version>1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.google.apis/google-api-services-admin-directory -->
<dependency>
<groupId>com.google.apis</groupId>
<artifactId>google-api-services-admin-directory</artifactId>
<version>directory_v1-rev110-1.25.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.google.apis/google-api-services-calendar -->
<dependency>
<groupId>com.google.apis</groupId>
<artifactId>google-api-services-calendar</artifactId>
<version>v3-rev20191117-1.30.3</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.google.apis/google-api-services-people -->
<dependency>
<groupId>com.google.apis</groupId>
<artifactId>google-api-services-people</artifactId>
<version>v1-rev20190910-1.30.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.google.apis/google-api-services-drive -->
<dependency>
<groupId>com.google.apis</groupId>
<artifactId>google-api-services-drive</artifactId>
<version>v3-rev20191108-1.30.3</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.google.apis/google-api-services-gmail -->
<dependency>
<groupId>com.google.apis</groupId>
<artifactId>google-api-services-gmail</artifactId>
<version>v1-rev20190602-1.30.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.google.gdata/core -->
<dependency>
<groupId>com.google.gdata</groupId>
<artifactId>core</artifactId>
<version>1.47.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.googlecode.json-simple/json-simple -->
<dependency>
<groupId>com.googlecode.json-simple</groupId>
<artifactId>json-simple</artifactId>
<version>1.1.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.nimbusds/nimbus-jose-jwt -->
<dependency>
<groupId>com.nimbusds</groupId>
<artifactId>nimbus-jose-jwt</artifactId>
<version>5.14</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.google.endpoints/endpoints-framework-auth -->
<dependency>
<groupId>com.google.endpoints</groupId>
<artifactId>endpoints-framework-auth</artifactId>
<version>1.0.11</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.google.protobuf/protobuf-java -->
<dependency>
<groupId>com.google.protobuf</groupId>
<artifactId>protobuf-java</artifactId>
<version>3.11.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/commons-io/commons-io -->
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.6</version>
</dependency>
<dependency>
<groupId>com.google.firebase</groupId>
<artifactId>firebase-admin</artifactId>
<version>6.5.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-annotations -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.9.8</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.9.8</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.squareup.okhttp3/okhttp -->
<dependency>
<groupId>com.squareup.okhttp3</groupId>
<artifactId>okhttp</artifactId>
<version>4.7.2</version>
</dependency>
<dependency>
<groupId>com.mailjet</groupId>
<artifactId>mailjet-client</artifactId>
<version>4.5.0</version>
</dependency>
</dependencies>
<build>
<outputDirectory>${project.build.directory}/${project.build.finalName}/WEB-INF/classes</outputDirectory>
<plugins>
<plugin>
<groupId>com.google.cloud.tools</groupId>
<artifactId>endpoints-framework-maven-plugin</artifactId>
<version>1.0.2</version>
<configuration>
<hostname>${endpoints.project.id}.appspot.com</hostname>
</configuration>
</plugin>
<plugin>
<groupId>com.google.cloud.tools</groupId>
<artifactId>appengine-maven-plugin</artifactId>
<version>1.3.2</version>
<configuration>
<!-- deploy configuration -->
<version>1</version>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>versions-maven-plugin</artifactId>
<version>2.7</version>
<executions>
<execution>
<phase>compile</phase>
<goals>
<goal>display-dependency-updates</goal>
<goal>display-plugin-updates</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>3.3.2</version>
</plugin>
</plugins>
</build>
</project>
I'm trying to implement my own jar (library) in another project I'm working on. But I'm getting the error NoClassDefFoundError when I run the program and try to instantiate a class from the library I built.
I try to add the dependency in different ways, with maven local repo or adding the jar file directly as an external jar in Build Path. I don't get any warning/error in eclipse and I can build and install the app with maven successfully. But when I execute the part of the code that use a class from that library I get NoClassDefFoundError.
My library groupId is com.mycompany.myapp, and the classes I'm using are in the package com.mycompany.myapp.business. I'm try to move the class to the parent package just in case but I'm always getting the same error.
1 - Do I need to define which classes need to be available when importing the jar?
2- Do I need to compile the library in an specific way apart from mvn clan package/install?
3 - Do I need to add the same dependencies I have in my library in my parent project to have everything working?
This is my children 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.mycompany.mylibrary</groupId>
<artifactId>mylibrary</artifactId>
<version>0.0.1-SNAPSHOT</version>
<build>
<sourceDirectory>src</sourceDirectory>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.7.0</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.1</version>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
<version>1.1.1</version>
</dependency>
<dependency>
<groupId>commons-discovery</groupId>
<artifactId>commons-discovery</artifactId>
<version>0.5</version>
</dependency>
<dependency>
<groupId>wsdl4j</groupId>
<artifactId>wsdl4j</artifactId>
<version>1.6.3</version>
</dependency>
<dependency>
<groupId>jaxen</groupId>
<artifactId>jaxen</artifactId>
<version>1.1.6</version>
</dependency>
<dependency>
<groupId>javax.xml.rpc</groupId>
<artifactId>javax.xml.rpc-api</artifactId>
<version>1.1.1</version>
</dependency>
<dependency>
<groupId>dom4j</groupId>
<artifactId>dom4j</artifactId>
<version>1.6.1</version>
</dependency>
<dependency>
<groupId>org.bouncycastle</groupId>
<artifactId>bcprov-jdk15on</artifactId>
<version>1.47</version>
</dependency>
<dependency>
<groupId>org.bouncycastle</groupId>
<artifactId>bcpkix-jdk15on</artifactId>
<version>1.47</version>
</dependency>
<dependency>
<groupId>org.apache.axis</groupId>
<artifactId>axis</artifactId>
<version>1.4</version>
</dependency>
<dependency>
<groupId>javax.xml.rpc</groupId>
<artifactId>javax.xml.rpc-api</artifactId>
<version>1.1.1</version>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-api</artifactId>
<version>5.5.0-M1</version>
</dependency>
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>1.4</version>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-engine</artifactId>
<version>5.5.0-M1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.platform</groupId>
<artifactId>junit-platform-launcher</artifactId>
<version>1.5.0-M1</version>
</dependency>
<dependency>
<groupId>org.junit</groupId>
<artifactId>junit-bom</artifactId>
<version>5.3.1</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</project>
And then in my main project I instantiate the class in the following way:
Init oInit = new Init();
Where Init is a public class defined in com.mycompany.mylibrary.business package.
java.lang.NoClassDefFoundError: com/mycompany/mylibrary/business/Init
pom.xml from the main proyect:
<dependency>
<groupId>com.mycompany.mylibrary</groupId>
<artifactId>mylibrary</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>
In the parent project, in the libraries imported by maven I see that my library has a folder icon instead of the one the other have.
You can use the two ways to include a library into your project:
Including the library directly into your project classpath
Through Maven
When using the Maven option, you must be sure that the library is well exported to the Maven repository, local or remote (such as Nexus). The first place Maven will search when looking for a library defined in the pom.xml is on your local repository (located at ~/.m2). The it will look into the Central Maven Repository (located at https://mvnrepository.com/repos/central). In between, you can declare your own repositories into your pom.xml as
<repositories>
<repository>
<id>my-repo</id>
<name>My Maven Repository</name>
<url>${nexus.repositories.url}</url>
</repository>
<repositories>
How to build the library to be included into your own local or remote repository? Just be sure to include the install goal when compiling with Maven, and also the repository definition into its pom.xml
I'm using Maven. I'm having trouble downloading a dependency and getting the error, "Missing artifact org.hibernate:hibernate-core:jar:5.2.10.final".
I delete whole project an clone it again from git.I update maven dependencies, still there is no hibernate file load in it.
Here is my pom.xml
http://maven.apache.org/xsd/maven-4.0.0.xsd">
4.0.0
<groupId>gau</groupId>
<artifactId>shoppingbackend</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>shoppingbackend</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<spring.version>4.3.6.RELEASE</spring.version>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<!-- SPRING -->
<!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- H2 Database -->
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<version>1.4.193</version>
</dependency>
<!-- Hibernate -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>5.2.10.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate.javax.persistence</groupId>
<artifactId>hibernate-jpa-2.0-api</artifactId>
<version>1.0.1.Final</version>
</dependency>
<!-- Database connection pooling -->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-dbcp2</artifactId>
<version>2.1.1</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<!-- update to latest java version -->
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
Git link of my project
https://github.com/Gauravmokashi/online-shopping.git
You may check if any other Maven projects of yours are currently using this dependency for Hibernate, and if they do, then diactivate them. After that, put this dependency into the project's pom.xml file you need and update ALL your Maven projects. It should work then.
I also face this issue and I tried many things like restart eclipse, maven clean
If you are using eclipse just right click on the project > select run as > click maven install. This may solve the issue
Scenario
I am trying to add server's servlet-api into my existing Dynamic Web Application after reading BalusC's answer on this post.
So from start in am using maven dependency for my project
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>${servlet.version}</version>
<scope>provided</scope>
</dependency>
After reading the BalusC's answer I removed the javax.servlet dependency from pom.xml and I added *Target Runtime into my project.
*
Problem
After this all the errors (in eclipse's window) have gone. But when I try to maven clean install it gives [ERROR] COMPILATION ERROR : package javax.servlet does not exist.
But again if I added the javax.servlet's dependency in pom.xml then it works fine.
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>IncidentManagement</groupId>
<artifactId>IncidentManagement</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<build>
<sourceDirectory>src.main.java</sourceDirectory>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.5.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>3.0.0</version>
<configuration>
<warSourceDirectory>WebContent</warSourceDirectory>
</configuration>
</plugin>
</plugins>
</build>
<properties>
<java.version>1.8</java.version>
<junit.version>4.12</junit.version>
<servlet.version>3.1.0</servlet.version>
<mojarra.version>2.2.12</mojarra.version>
<primefaces.version>5.3</primefaces.version>
<maven.compiler.plugin.version>3.3</maven.compiler.plugin.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<repositories>
<repository>
<id>JBoss repository</id>
<url>http://repository.jboss.org/nexus/content/groups/public/</url>
</repository>
</repositories>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.8.2</version>
<scope>test</scope>
</dependency>
<!-- ORACLE database driver -->
<!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.38</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>3.6.3.Final</version>
</dependency>
<dependency>
<groupId>dom4j</groupId>
<artifactId>dom4j</artifactId>
<version>1.6.1</version>
</dependency>
<dependency>
<groupId>javassist</groupId>
<artifactId>javassist</artifactId>
<version>3.12.1.GA</version>
</dependency>
<!-- <dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>${servlet.version}</version>
<scope>provided</scope>
</dependency> -->
<!-- Mojarra JSF -->
<dependency>
<groupId>com.sun.faces</groupId>
<artifactId>jsf-api</artifactId>
<version>${mojarra.version}</version>
</dependency>
<dependency>
<groupId>com.sun.faces</groupId>
<artifactId>jsf-impl</artifactId>
<version>${mojarra.version}</version>
</dependency>
<!-- PrimeFaces -->
<dependency>
<groupId>org.primefaces</groupId>
<artifactId>primefaces</artifactId>
<version>${primefaces.version}</version>
</dependency>
<!-- Excel and CSV -->
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>3.10-FINAL</version>
<type>jar</type>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
<version>3.10-FINAL</version>
<type>jar</type>
</dependency>
<!-- PDF -->
<dependency>
<groupId>com.lowagie</groupId>
<artifactId>itext</artifactId>
<version>2.1.7</version>
</dependency>
<!-- JSON -->
<dependency>
<groupId>com.googlecode.json-simple</groupId>
<artifactId>json-simple</artifactId>
<version>1.1.1</version>
</dependency>
<!-- Primefaces Theme -->
<!-- https://mvnrepository.com/artifact/org.primefaces.extensions/all-themes -->
<dependency>
<groupId>org.primefaces.extensions</groupId>
<artifactId>all-themes</artifactId>
<version>1.0.8</version>
</dependency>
</dependencies>
</project>
P.S: I am using Java 8, Apache tomcat 8 and maven 3.
It's quite correct in stating it can't find the class as you don't have it in your pom file...
Having the dependency there as "provided" is correct. At compile time it'll use stubs downloaded from a repository, at runtime it will use the actual classes installed into and provided by the servlet container.
Balus's answer isn't relevant to maven projects, only native Eclipse projects that aren't built externally to Eclipse.
#Junaid, I had the same problem at my workplace. Later I realized that servlet-api.jar file was not the repository provided by workplace. I guess, we are behind the proxy and that downloads the file from local repository than maven. I had to use the j2ee.jar file for the purpose.
I'm facing problems when I'm trying to deploy my war file to the openshift repository.
The error is:
Could not resolve dependencies for project ... the following artifacts could not be found:
All these external jar's are included in the WEB-INF folder of my project and I've also tried to add a local repository but still no luck.
Can anyone help me with this please?
Image of error
here is my 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>SussolWebservice</groupId>
<artifactId>SussolWebservice</artifactId>
<version>ROOT</version>
<packaging>war</packaging>
<properties>
<spring.version>4.0.1.RELEASE</spring.version>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<!-- Spring dependencies -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>1.9.13</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.5.3</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.2.3</version>
</dependency>
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>1.4</version>
</dependency>
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.2.2</version> <!-- makesure correct version here -->
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.2.3</version>
</dependency>
<dependency>
<groupId>org.eclipse.jdt.core.compiler</groupId>
<artifactId>ecj</artifactId>
<version>4.4.2</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.0.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>weka</groupId>
<artifactId>weka</artifactId>
<scope>system</scope>
<version>1.0</version>
<systemPath>${basedir}\WebContent\WEB-INF\lib\weka.jar</systemPath>
</dependency>
<dependency>
<groupId>opencsv</groupId>
<artifactId>opencsv</artifactId>
<scope>system</scope>
<version>1.0</version>
<systemPath>${basedir}\WebContent\WEB-INF\lib\opencsv-3.7.jar</systemPath>
</dependency>
<dependency>
<groupId>logging</groupId>
<artifactId>logging</artifactId>
<scope>system</scope>
<version>1.0</version>
<systemPath>${basedir}\WebContent\WEB-INF\lib\slf4j-log4j12-1.7.1.jar</systemPath>
</dependency>
<dependency>
<groupId>log</groupId>
<artifactId>log</artifactId>
<scope>system</scope>
<version>1.0</version>
<systemPath>${basedir}\WebContent\WEB-INF\lib\slf4j-api-1.7.1.jar</systemPath>
</dependency>
<dependency>
<groupId>loggger</groupId>
<artifactId>logger</artifactId>
<scope>system</scope>
<version>1.0</version>
<systemPath>${basedir}\WebContent\WEB-INF\lib\log4j-1.2.17.jar</systemPath>
</dependency>
<dependency>
<groupId>packagemgr</groupId>
<artifactId>packagemgr</artifactId>
<scope>system</scope>
<version>1.0</version>
<systemPath>${basedir}\WebContent\WEB-INF\lib\packageManager.jar</systemPath>
</dependency>
<dependency>
<groupId>SOM</groupId>
<artifactId>SOM</artifactId>
<scope>system</scope>
<version>1.0</version>
<systemPath>${basedir}\WebContent\WEB-INF\lib\SelfOrganizingMap.jar</systemPath>
</dependency>
</dependencies>
<build>
<sourceDirectory>src</sourceDirectory>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.3</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>2.6</version>
<configuration>
<warSourceDirectory>WebContent</warSourceDirectory>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
</plugins>
</build>
</project>
I have checked your pom and found some dependencies with scope system, which means your JDK or container provides those jar's at a location you provide in the pom.
From the documentation:
system
This scope is similar to provided except that you have to
provide the JAR which contains it explicitly. The artifact is always
available and is not looked up in a repository.
provided
This is much like compile, but indicates you expect the JDK
or a container to provide the dependency at runtime. For example, when
building a web application for the Java Enterprise Edition, you would
set the dependency on the Servlet API and related Java EE APIs to
scope provided because the web container provides those classes. This
scope is only available on the compilation and test classpath, and is
not transitive.
More information here:
https://maven.apache.org/guides/introduction/introduction-to-dependency-mechanism.html#Dependency_Scope
It is very likely openshift has no files like those provided as systempath's in your POM.
You can do one of the following:
Remove scope & system path from you depedencies, this way the
default (Compile) scope will be used and those jar's will be
included in your project.
Store the jar files you need in a folder on your openshift server (app-root/data, for example) and refer to that folder in your pom.
If you are using Tomcat, and all your applications running on this Tomcat are using the libraries you want to share, you can always store your shared libs in: tomcat-dir/common/lib (don't forget to change your scope to "provided" in this case).