I want to build a maven project using Servlet API.However,I failed and error comes that:
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-war-plugin:3.0.0:war (default-war) on project myfirstservlet: Execution default-war of goal org.apache.maven.plugins:maven-war-plugin:3.0.0:war failed: Unable to load the mojo 'war' in the plugin 'org.apache.maven.plugins:maven-war-plugin:3.0.0' due to an API incompatibility: org.codehaus.plexus.component.repository.exception.ComponentLookupException: null
I do know a little for the problem but still not know how to solve it.Should I download another version of JDK、JRE or something else,or just rewrite my code?
Here is my code of 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>com.mavenservlet</groupId>
<artifactId>myfirstservlet</artifactId>
<properties>
<failOnMissingWebXml>false</failOnMissingWebXml>
</properties>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>myfirstservlet Maven Webapp</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</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>
<!-- https://mvnrepository.com/artifact/javax.servlet.jsp/javax.servlet.jsp-api -->
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>javax.servlet.jsp-api</artifactId>
<version>2.3.3</version>
<scope>provided</scope>
</dependency>
</dependencies>
<build>
<finalName>myfirstservlet</finalName>
<plugins>
<plugin>
<groupId>com.mavenservlet</groupId>
<artifactId>myfirstservlet</artifactId>
<version>0.0.1-SNAPSHOT</version>
<configuration>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>3.0.0</version>
<configuration>
<webResources>
<resource>
<directory>WebContent</directory>
</resource>
</webResources>
</configuration>
</plugin>
</plugins>
</build>
</project>
here is the right code and it costs me some money.I still can't konw how it works.But I'd love to share it for the followers.
<?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.mavenservlet</groupId>
<artifactId>myfirstservlet</artifactId>
<packaging>pom</packaging>
<version>1.0-SNAPSHOT</version>
<dependencies>
<!-- https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>4.0.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.servlet.jsp/javax.servlet.jsp-api -->
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>javax.servlet.jsp-api</artifactId>
<version>2.3.3</version>
</dependency>
</dependencies>
</project>
One of the solutions is to change the default plugin version, your default maybe 2.2 or 3.0.0 so read carefully the error maven-war-plugin mentioned there.
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>3.3.2</version>
</plugin>
]
Related
I wanted to learn how to develop RESTful APIs with JAX-RS and so started with an example covered in one of the YouTube videos. The video was created 5 -6 years ago and used Tomcat 7 and an older version of Eclipse. But I installed the recent versions of Tomcat (10.0.6) and Eclipse (jee-2021-03) and followed the tutorial.
I created a new maven project with the following archetype:
Group Id: org.glassfish.jersey.archetypes
Artifact Id: jersey-quickstart-webapp
Version: 3.0.2
I provided Group Id and Artifact Id for my project with default version 0.0.1-SNAPSHOT and clicked Finish.
Eclipse created the project with the following 2 errors:
index.jsp: "The superclass "javax.servlet.http.HttpServlet" was not found on the Java Build Path"
pom.xml: "Could not initialize class org.apache.maven.plugin.war.util.WebappStructureSerializer" on the very first line.
I'd appreciate if someone can help me understand why I'm getting these errors and how to resolve them.
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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.xyz.rest</groupId>
<artifactId>onlineshopping</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>onlineshopping</name>
<build>
<finalName>onlineshopping</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.1</version>
<inherited>true</inherited>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.glassfish.jersey</groupId>
<artifactId>jersey-bom</artifactId>
<version>${jersey.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.glassfish.jersey.containers</groupId>
<artifactId>jersey-container-servlet-core</artifactId>
<!-- use the following artifactId if you don't need servlet 2.x compatibility -->
<!-- artifactId>jersey-container-servlet</artifactId -->
</dependency>
<dependency>
<groupId>org.glassfish.jersey.inject</groupId>
<artifactId>jersey-hk2</artifactId>
</dependency>
<!-- uncomment this to get JSON support
<dependency>
<groupId>org.glassfish.jersey.media</groupId>
<artifactId>jersey-media-json-binding</artifactId>
</dependency>
-->
</dependencies>
<properties>
<jersey.version>3.0.2</jersey.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
</project>
for first problem:
right click on your project
click Properties
click Targeted Runtimes
tick mark Apache Tomcat v10.0
click Apply and Close
for second problem:
add the following plugin inside the pom.xml file inside build -> plugins
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>3.2.2</version>
</plugin>
your pom.xml file should be 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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.xyz.rest</groupId>
<artifactId>onlineshopping</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>onlineshopping</name>
<build>
<finalName>onlineshopping</finalName>
<plugins>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>3.2.2</version>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.1</version>
<inherited>true</inherited>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.glassfish.jersey</groupId>
<artifactId>jersey-bom</artifactId>
<version>${jersey.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.glassfish.jersey.containers</groupId>
<artifactId>jersey-container-servlet-core</artifactId>
<!-- use the following artifactId if you don't need servlet 2.x compatibility -->
<!-- artifactId>jersey-container-servlet</artifactId -->
</dependency>
<dependency>
<groupId>org.glassfish.jersey.inject</groupId>
<artifactId>jersey-hk2</artifactId>
</dependency>
<!-- uncomment this to get JSON support
<dependency>
<groupId>org.glassfish.jersey.media</groupId>
<artifactId>jersey-media-json-binding</artifactId>
</dependency>
-->
</dependencies>
<properties>
<jersey.version>3.0.2</jersey.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
</project>
Hope this will solve your problems.
For 1/ index.jsp
add the following dependency in pom.xml
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
for 2/ pom.xml
add the following property at the end of eclipse.ini and restart eclipse
--illegal-access=permit
I'm just starting to use IntelliJ and working on making a very simple "hello world" application. It looks like a very simple setup issue but I can't find a solution here that works.
Here's the 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.jay.jayWorld</groupId>
<artifactId>simple-project</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<name>simple-project</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${springframework.version}</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>javax.servlet.jsp-api</artifactId>
<version>2.3.1</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
</dependencies>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.2</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
</plugins>
</pluginManagement>
<finalName>Spring4MVCHelloWorldDemo</finalName>
</build>
</project>
Is it because I'm using ${springframework.version}? I've seen from some project that this works but not to be the case in my project. Do i need to define it somewhere?
Here's the screenshot of the error.
You need to define a property named springframework.version in your maven POM. Like this
<properties>
<springframework.version>4.3.11</springframework.version>
</properties>
The scope - runtime added for spring-context dependency was the issue in pom. Once removed(runtime attribute)and maven clean install builds successfully.
I am writing a maven plugin using Mojo classes. The plugin requires a dependency called jcifs and included it in the pom.xml of the plugin. I am able build the plugin and it is deployed into my local repository. I can find the jar file and pom.xml in my local repository.
When I use this plugin in another project in my local system, when executing the plugin goal, I am getting an exception saying the class not found. But the class is coming from the jcifs jar and it is included as part of the dependency for my plugin.
I am not able to figure out what I am missing here. Any help is appreciated
Following is the plugin 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>com.mayuran19.maven.plugin</groupId>
<artifactId>LocalToRemoteRepo</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>maven-plugin</packaging>
<name>localtoremoterepo-maven-plugin</name>
<properties>
<mavenVersion>3.2.1</mavenVersion>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>org.apache.maven</groupId>
<artifactId>maven-plugin-api</artifactId>
<version>3.5.0</version>
</dependency>
<dependency>
<groupId>org.apache.maven</groupId>
<artifactId>maven-core</artifactId>
<version>${mavenVersion}</version>
</dependency>
<dependency>
<groupId>org.apache.maven.plugin-tools</groupId>
<artifactId>maven-plugin-annotations</artifactId>
<version>3.5</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>jcifs</groupId>
<artifactId>jcifs</artifactId>
<version>1.3.17</version>
</dependency>
</dependencies>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.2</version>
<configuration>
<source>${maven.compiler.source}</source>
<target>${maven.compiler.target}</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-plugin-plugin</artifactId>
<version>3.3</version>
<executions>
<execution>
<id>default-descriptor</id>
<phase>process-classes</phase>
</execution>
</executions>
</plugin>
</plugins>
</pluginManagement>
</build>
Following show is the pom.xml of the project that use this plugin
<?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.mayuran19.maven.plugin</groupId>
<artifactId>LocalToRemoteRepo</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<name>localtoremoterepo-maven-plugin Test</name>
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>4.3.3.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.integration</groupId>
<artifactId>spring-integration-core</artifactId>
<version>4.3.4.RELEASE</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.apache.maven.shared</groupId>
<artifactId>maven-dependency-tree</artifactId>
<version>3.0.1</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>jcifs</groupId>
<artifactId>jcifs</artifactId>
<version>1.3.17</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>com.mayuran19.maven.plugin</groupId>
<artifactId>LocalToRemoteRepo</artifactId>
<version>1.0-SNAPSHOT</version>
<configuration>
<localRepoDir>C:/Users/smayuran.SITBCS/.m2/repository</localRepoDir>
<remoteRepoDir>smb://192.168.9.196/internal</remoteRepoDir>
<username>G3App</username>
<password>P#ssword$1</password>
</configuration>
</plugin>
</plugins>
</build>
Error I am getting is class not found exception from the library jcifs
You can do this way, if you want:
**Step 1:**Download the jar file to you local machine
**Step 2:**Moving you jar to you maven repo:Run as shown bellow
Example:
<dependency>
<groupId>org.mock-server</groupId>
<artifactId>mockserver-netty</artifactId>
<version>3.10.1</version>
</dependency>
mvn install:install-file -Dfile=C:\Users\username\Desktop\mockserver-netty-3.10.1.jar -DgroupId=org.mock-server -DartifactId=mockserver-netty -Dversion=3.10.1 -Dpackaging=jar
I was getting an error because I mistakenly misplaced a dependency outside the dependencies tag. I corrected it, cleaned, updated, built, but I still have the error. What is wrong with 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>it.polimi.ingsw</groupId>
<artifactId>cg_43</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>cg_43</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<sonar.host.url>http://localhost:9000</sonar.host.url>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.codehaus.sonar</groupId>
<artifactId>sonar-plugin-api</artifactId>
<version>5.1</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.6.2</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.5.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>sonar-maven-plugin</artifactId>
<version>2.7.1</version>
</plugin>
</plugins>
</build>
</project>
The Error that I'm getting is:
cvc-complex-type.2.4.a: Invalid content was found starting with element 'dependency'. One of '{"http://maven.apache.org/POM/4.0.0":parent, "http://maven.apache.org/POM/4.0.0":description, "http://maven.apache.org/POM/4.0.0":prerequisites, "http://maven.apache.org/POM/4.0.0":issueManagement, "http://maven.apache.org/POM/4.0.0":ciManagement, "http://maven.apache.org/POM/4.0.0":inceptionYear, "http://maven.apache.org/POM/4.0.0":mailingLists, "http://maven.apache.org/POM/4.0.0":developers, "http://maven.apache.org/POM/4.0.0":contributors, "http://maven.apache.org/POM/4.0.0":licenses, "http://maven.apache.org/POM/4.0.0":scm, "http://maven.apache.org/POM/4.0.0":organization, "http://maven.apache.org/POM/4.0.0":build, "http://maven.apache.org/POM/4.0.0":profiles, "http://maven.apache.org/POM/4.0.0":modules, "http://maven.apache.org/POM/4.0.0":repositories, "http://maven.apache.org/POM/4.0.0":pluginRepositories, "http://maven.apache.org/POM/4.0.0":reports, "http://maven.apache.org/POM/4.0.0":reporting, "http://maven.apache.org/POM/4.0.0":dependencyManagement, "http://maven.apache.org/POM/4.0.0":distributionManagement}' is expected.
<dependency>
<groupId>it.polimi.ingsw</groupId>
<artifactId>cg_43</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging> replace with <type>jar</type>
</dependency>
Deleting the project and importing it again made the error go away.
I am developing a tomcat project, managed by maven in eclipse. I have to deploy it remotely and everytime I deploy it, maven copies all the jar files. I aim to use tomcat shared libs but I am not quite sure about the configuration ... here is my 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.springer</groupId> <artifactId>GraphStatistics</artifactId> <packaging>war</packaging> <version>0.0.1-SNAPSHOT</version> <name>GraphStatistics Maven Webapp</name> <url>http://maven.apache.org</url> <dependencies> <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-jcs-core</artifactId> <version>2.0-beta-1</version> </dependency> <dependency> <groupId>org.neo4j</groupId> <artifactId>neo4j</artifactId> <version>2.2.3</version> </dependency> <dependency> <groupId>org.apache.tomcat</groupId> <artifactId>tomcat-servlet-api</artifactId> <version>7.0.47</version> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <dependency> <groupId>com.googlecode.json-simple</groupId> <artifactId>json-simple</artifactId> <version>1.1.1</version> </dependency> </dependencies> <build> <finalName>GraphStatistics</finalName> <plugins> <plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.2</version>
<configuration>
<url>blahblah</url>
<password>blah</password>
<username>admin</username>
<path>/Yesyes</path>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
</plugins>
</build>
Any ideas or hints?