Antlr4 grammar, Eclipse and Maven. Cannot see generated classes on my code - eclipse

Eclipse Oxygen.3a Release 4.7.3a
Maven
I have a project, with a lot of classes.
I tried to create an Antlr4 grammar, so I have my .g4 file on src/main/java/antlr4/mygrammar.g4.
Antlr4 does not generate generate anything.
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>wiz</groupId>
<artifactId>calculo</artifactId>
<version>0.0.1</version>
<name>calculo</name>
<description>Cálculo do Sistema de Folha de Pagamento</description>
<scm>
<connection>scm:git:https://github.com/zsoltherpai/fluent-jdbc.git</connection>
<developerConnection>scm:git:git#github.com:zsoltherpai/fluent-jdbc.git</developerConnection>
<url>https://github.com/zsoltherpai/fluent-jdbc</url>
</scm>
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>org.codejargon</groupId>
<artifactId>fluentjdbc</artifactId>
<version>1.8.3</version>
</dependency>
<dependency>
<groupId>org.antlr</groupId>
<artifactId>antlr4</artifactId>
<version>4.7.1</version>
</dependency>
<dependency>
<groupId>com.oracle</groupId>
<artifactId>ojdbc7</artifactId>
<version>12.1.0</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.antlr</groupId>
<artifactId>antlr4-maven-plugin</artifactId>
<version>4.7.1</version>
<executions>
<execution>
<id>antlr</id>
<goals>
<goal>antlr4</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
What am I missing? Do I need to invoke manually something?


I have my .g4 file on src/main/java/antlr4/mygrammar.g4.
The ANTLR4 maven plug-in expects the grammars to be in src/main/antlr4, not src/main/java/antlr4.

Related

Problems building effective model for com.MyProject:jar:1.0-SNAPSHOT

My project already runs correctly inside netbeans, but when I want to do "clean and compile" to create the .jar file, it doesn't create the "dist" folder but a "target" folder and doesn't even execute the file, in Console I get It shows some meven errors and the pom file that I still don't know how to fix. I hope someone can guide me in this final step of my project. I leave the capture and the code of the pom file.
error 1
error 2
<?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.mycompany</groupId>
<artifactId>Compugar1</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<showDeprecation>false</showDeprecation>
</configuration>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>unknown-jars-temp-repo</id>
<name>A temporary repository created by NetBeans for libraries and jars it could not identify. Please replace the dependencies in this repository with correct ones and delete this repository.</name>
<url>file:${project.basedir}/lib</url>
</repository>
</repositories>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>17</maven.compiler.source>
<maven.compiler.target>17</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>com.formdev</groupId>
<artifactId>flatlaf</artifactId>
<version>2.4</version>
</dependency>
<dependency>
<groupId>com.formdev</groupId>
<artifactId>flatlaf-intellij-themes</artifactId>
<version>2.4</version>
</dependency>
<dependency>
<groupId>unknown.binary</groupId>
<artifactId>AbsoluteLayout</artifactId>
<version>SNAPSHOT</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.22</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-text</artifactId>
<version>1.0</version>
</dependency>
</dependencies>
<reporting>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-checkstyle-plugin</artifactId>
<configuration>
<configLocation>config/sun_checks.xml</configLocation>
</configuration>
</plugin>
</plugins>
</reporting>
<name>Compugar</name>
<description>Base de datos de clientes, antenas, reportes y pagos</description>
</project>
I tried to delete the dependencies and download them again, but it didn't work...

Creation of a java EE project on Eclipse for Java EE

I have create a Java EE project using maven.
Here is the generated hierarchy
If you observed on this image, I got an error in the index.jsp file.
When I focus in error, I got :
The superclass "jakarta.servlet.http.HttpServlet" was not found on the Java Build Path.
Error message in index.jsp
Can someone help me solve it? Thank you.
This is pom.xml file auto-generate.
<?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>tn.ipsas.jee_eclipse</groupId>
<artifactId>maven_jsf_wepp_app</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<name>maven_jsf_wepp_app Maven Webapp</name>
<!-- FIXME change it to the project's website -->
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.7</maven.compiler.source>
<maven.compiler.target>1.7</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<finalName>maven_jsf_wepp_app</finalName>
<pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
<plugins>
<plugin>
<artifactId>maven-clean-plugin</artifactId>
<version>3.1.0</version>
</plugin>
<!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging -->
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>3.0.2</version>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.0</version>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.1</version>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>3.2.2</version>
</plugin>
<plugin>
<artifactId>maven-install-plugin</artifactId>
<version>2.5.2</version>
</plugin>
<plugin>
<artifactId>maven-deploy-plugin</artifactId>
<version>2.8.2</version>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>

Here is how I solved the problem.
Right click on the project, Property> Project Facets
Selecting Dynamic Web Module and I upgraded the version to 3.1
Then Apply.

Maven test doesn't run tests

I have a Scala project where I replaced SBT with maven.
I have the following 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>myProjectName</groupId>
<artifactId>my.package.myProjectName</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<name></name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<!-- https://mvnrepository.com/artifact/org.apache.spark/spark-core_2.10 -->
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-core_2.10</artifactId>
<version>1.6.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.scalatest/scalatest_2.11 -->
<dependency>
<groupId>org.scalatest</groupId>
<artifactId>scalatest_2.11</artifactId>
<version>3.0.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.typesafe.akka/akka-testkit_2.11 -->
<dependency>
<groupId>com.typesafe.akka</groupId>
<artifactId>akka-testkit_2.11</artifactId>
<version>2.4.14</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.typesafe.akka/akka-http-testkit_2.11 -->
<dependency>
<groupId>com.typesafe.akka</groupId>
<artifactId>akka-http-testkit_2.11</artifactId>
<version>10.0.0</version>
</dependency>
</dependencies>
</project>
For clarity, I removed some of the dependencies in the text above.
The problem is that when I run mvn test none of my tests are executed.
The tests are located under src/test/scala/my/package.
They don't contain test in their names, but even if I add Test at the end of their names, they aren't run.

To compile and test scala sources you should add the scala-maven-plugin to your build.
<project>
...
<build>
<sourceDirectory>src/main/scala</sourceDirectory>
<testSourceDirectory>src/test/scala</testSourceDirectory>
...
<plugins>
<plugin>
<groupId>net.alchim31.maven</groupId>
<artifactId>scala-maven-plugin</artifactId>
<version>3.2.1</version>
<executions>
<execution>
<goals>
<goal>compile</goal>
<goal>testCompile</goal>
</goals>
</execution>
</executions>
<!-- explicit scala version not recommended-->
<!-- usually inferred from scala-library dependency-->
<configuration>
<scalaVersion>${scala.version}</scalaVersion>
</configuration>
</plugin>
</plugins>
</build>
</project>

Maven GWT (SmartGWT): How to organize my project to prevent long compilation

Dear StackOverflow Users,
I want to split my huge application written in SmartGWT, compiled by maven, into several subprojects, for example: common, custom-widgets, forms, custom-datasources, sites.
The main idea is: once subproject is compilated by GWT can be easy used in other sub-project to skip compilation again. (sorry for my english, but I think You got my point)
example subproject pom.xml is:
<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>
<parent>
<groupId>eu.nanobeauty</groupId>
<artifactId>nanobeauty</artifactId>
<version>1.0-SNAPSHOT</version>
</parent>
<artifactId>common</artifactId>
<packaging>jar</packaging>
<name>nanoBeauty :: Common</name>
<build>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>gwt-maven-plugin</artifactId>
<version>${gwt.version}</version>
<executions>
<execution>
<goals>
<goal>compile</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
Common.gwt.xml is :
<module>
<inherits name="com.google.gwt.user.User"/>
<inherits name="com.smartgwt.SmartGwtNoTheme"/>
<source path="common"/>
</module>
and the parent pom.xml is:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>eu.nanobeauty</groupId>
<artifactId>nanobeauty</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>pom</packaging>
<name>nanoBeauty :: Parent</name>
<modules>
<module>datasources</module>
<!-- multimodule : each form different project -->
<module>forms</module>
<!-- multimodule : each site different project -->
<module>sites</module>
<module>common</module>
</modules>
<properties>
<gwt.version>2.5.0</gwt.version>
<smartgwt.version>3.1</smartgwt.version>
<java.version>1.6</java.version>
<webappDirectory>${project.build.directory}/${project.build.finalName}</webappDirectory>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.war.plugin.version>2.1.1</maven.war.plugin.version>
</properties>
<repositories>
<repository>
<id>smartclient</id>
<url>http://smartclient.com/maven2</url>
</repository>
</repositories>
<dependencies>
<dependency>
<groupId>com.smartgwt</groupId>
<artifactId>smartgwt</artifactId>
<version>${smartgwt.version}</version>
</dependency>
<dependency>
<groupId>com.google.gwt</groupId>
<artifactId>gwt-servlet</artifactId>
<version>${gwt.version}</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>com.google.gwt</groupId>
<artifactId>gwt-user</artifactId>
<version>${gwt.version}</version>
<scope>provided</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>${java.version}</source>
<target>${java.version}</target>
</configuration>
</plugin>
</plugins>
</build>
</project>

After long night googling i found solution:
It cannot be done this way I want to achieve.
GWT needs source files to generate JS files. Main module pom.xml is ok and example .gwt.xml file above is also ok. Only change is in sub-module pom.xml files only goal is resources.
So for every submodule I need to setup pom.xml that looks like similar to:
<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>
<parent>
<groupId>eu.nanobeauty</groupId>
<artifactId>nanobeauty</artifactId>
<version>1.0-SNAPSHOT</version>
</parent>
<artifactId>common</artifactId>
<packaging>jar</packaging>
<name>nanoBeauty :: Common</name>
<build>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>gwt-maven-plugin</artifactId>
<version>${gwt.version}</version>
<executions>
<execution>
<goals>
<goal>resources</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
Based on this documents:
Resources goal
Multimodule project

Multi-module Maven POM

I have a parent project with 2 maven modules a simple Java Application (generated with maven-archetype-quickstart) and a GWT Application (generated with gwt-maven-plugin).
I am trying to set both modules' output directories to the parent /target/ folder, but while the application compiles with no errors, when i try to run it in tomcat [with mvn tomcat:run] I get the following error :
[ERROR] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Compilation failure
Failure executing javac, but could not parse the error:
javac: directory not found: /null/null/WEB-INF/lib
Usage: javac <options> <source files>
use -help for a list of possible options
The three pom.xml files are as follows :
Parent POM
<project>
<modelVersion>4.0.0</modelVersion>
<groupId>gr.veltisto</groupId>
<artifactId>ennovation</artifactId>
<version>0.1.1</version>
<packaging>pom</packaging>
<modules>
<module>core</module>
<module>gwt</module>
</modules>
</project>
java module 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>gr.veltisto.ennovation</groupId>
<artifactId>core</artifactId>
<version>0.1.1</version>
<packaging>jar</packaging>
<name>Veltisto Core Maven Module</name>
<parent>
<groupId>gr.veltisto</groupId>
<artifactId>ennovation</artifactId>
<version>0.1.1</version>
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
(...)
</dependencies>
<build>
<outputDirectory>/${project.parent.build.directory}/${project.parent.build.finalName}/WEB-INF/lib</outputDirectory>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.5.1</version>
<configuration>
<compilerVersion>1.6</compilerVersion>
</configuration>
</plugin>
</plugins>
</build>
GWT module 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/maven-v4_0_0.xsd">
<!-- POM file generated with GWT webAppCreator -->
<modelVersion>4.0.0</modelVersion>
<groupId>gr.veltisto.ennovation</groupId>
<artifactId>gwt</artifactId>
<packaging>war</packaging>
<version>0.0.1</version>
<name>Veltisto GWT Maven Module</name>
<parent>
<groupId>gr.veltisto</groupId>
<artifactId>ennovation</artifactId>
<version>0.1.1</version>
</parent>
<properties>
<!-- Convenience property to set the GWT version -->
<gwtVersion>2.5.0-rc1</gwtVersion>
<!-- GWT needs at least java 1.5 -->
<webappDirectory>/${project.parent.build.directory}/${project.parent.build.finalName}</webappDirectory>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>com.google.gwt</groupId>
<artifactId>gwt-servlet</artifactId>
<version>${gwtVersion}</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>com.google.gwt</groupId>
<artifactId>gwt-user</artifactId>
<version>${gwtVersion}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.7</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>javax.validation</groupId>
<artifactId>validation-api</artifactId>
<version>1.0.0.GA</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>javax.validation</groupId>
<artifactId>validation-api</artifactId>
<version>1.0.0.GA</version>
<classifier>sources</classifier>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.github.gwtbootstrap</groupId>
<artifactId>gwt-bootstrap</artifactId>
<version>2.0.4.0</version>
</dependency>
</dependencies>
<build>
<!-- Generate compiled stuff in the folder used for developing mode -->
<outputDirectory>${webappDirectory}/WEB-INF/classes</outputDirectory>
<plugins>
<!-- GWT Maven Plugin -->
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>gwt-maven-plugin</artifactId>
<version>2.5.0-rc1</version>
<executions>
<execution>
<goals>
<goal>compile</goal>
<goal>test</goal>
<goal>i18n</goal>
<goal>generateAsync</goal>
</goals>
</execution>
</executions>
<!-- Plugin configuration. There are many available options, see gwt-maven-plugin
documentation at codehaus.org -->
<configuration>
<runTarget>gwt.html</runTarget>
<hostedWebapp>${webappDirectory}</hostedWebapp>
<i18nMessagesBundle>gr.veltisto.ennovation.client.Messages</i18nMessagesBundle>
</configuration>
</plugin>
<!-- Copy static web files before executing gwt:run -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.1.1</version>
<executions>
<execution>
<phase>compile</phase>
<goals>
<goal>exploded</goal>
</goals>
</execution>
</executions>
<configuration>
<webappDirectory>${webappDirectory}</webappDirectory>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>1.5</source>
<target>1.5</target>
</configuration>
</plugin>
</plugins>
</build>
PS. When i run mvn compile the output directories are properly created. Only when i run mvn tomcat:run i get the /null/null/WEB-INF/lib reference

How about using your GWT module as an overlay in the webapp module instead?
See https://github.com/tbroyer/gwt-maven-archetypes (I've just added tomcat-maven-plugin support, there are a couple tweaks and workaround to make it work)