I'm trying to set up module-info.java in my project in Eclipse 2018-12.
Eclipse 2018-12 was complaining:
The type com.fasterxml.jackson.core.TreeNode cannot be resolved. It is indirectly referenced from required .class files
so I added
requires transitive com.fasterxml.jackson.core;
at which point Eclipse said it cannot be resolved to a module, and offered me a quick fix: "move classpath entry to module path".
On doing that, for packages in a source folder added to my build path via:
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>build-helper-maven-plugin</artifactId>
<version>3.0.0</version>
<executions>
<execution>
<id>add-source</id>
<phase>generate-sources</phase>
<goals>
<goal>add-source</goal>
</goals>
<configuration>
<sources>
<source>src/pptx4j/java</source>
<source>src/xlsx4j/java</source>
<source>src/glox4j/java</source>
<source>src/diffx</source>
</sources>
</configuration>
</execution>
</executions>
</plugin>
and exported in my module-info.java, Eclipse now complains the package does not exist or is empty.
This is so even though the source folders are visible in Build Path > Source.
What to do? thanks.
Related
I set a project to use lombok-maven-plugin and it is generating the code into **target/generated-sources/delombok** properly.
I don't have lombok installed into eclipse (4.11-M2) with java 11. But I have JDT APT plugin installed.
My problem is that lombok's generated target folder is not being added as source folder into my eclipse project.
I have other annotation processors set in the same project and they are being added, but the lombok one is not.
<plugin>
<groupId>org.projectlombok</groupId>
<artifactId>lombok-maven-plugin</artifactId>
<version>1.18.6.0</version>
<configuration>
<addOutputDirectory>true</addOutputDirectory>
</configuration>
<executions>
<execution>
<phase>generate-sources</phase>
<goals>
<goal>delombok</goal>
</goals>
</execution>
</executions>
</plugin>
What am I missing ?
I had a similar issue and eclipse:clean eclipse:eclipse fixed it for me.
I always used succesfully ANTLR4 combined with Maven inside Eclipse.
I just want to change the default directory where I store my grammar, since I do not like the standard path which is src/main/antlr4. The issue of this path is the creation of a new java package, that I really do not want.
So I simply decided to create another directory inside my project named grammar which contains another directory called imports. I did this following simply the website guidelines.
Despite this, when I change the grammar it doesn't generate automatically the new sources, even with the maven commands!
So, this is my configuration file pom.xml:
<!-- ANTLR4 -->
<plugin>
<groupId>org.antlr</groupId>
<artifactId>antlr4-maven-plugin</artifactId>
<version>4.5.3</version>
<executions>
<execution>
<configuration>
<goals>
<goal>antlr4</goal>
</goals>
<libDirectory>grammar/imports</libDirectory>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
As you can see, the target directory is empty. Before this change, there was a generated-sources directory inside with all the .java files.
So, where is the error?
The correct way is:
<!-- ANTLR4 -->
<plugin>
<groupId>org.antlr</groupId>
<artifactId>antlr4-maven-plugin</artifactId>
<version>4.5.3</version>
<executions>
<execution>
<goals>
<goal>antlr4</goal>
</goals>
<configuration>
<libDirectory>grammar/imports</libDirectory>
</configuration>
</execution>
</executions>
</plugin>
The <configuration> tag must be at same level than <goals> tag, inside <execution> tag, according to Maven documentation: https://maven.apache.org/guides/mini/guide-configuring-plugins.html#Using_the_executions_Tag and https://maven.apache.org/guides/mini/guide-default-execution-ids.html
In fact, the documentation in ANTLR4 Maven plugin is wrong:
http://www.antlr.org/api/maven-plugin/latest/examples/libraries.html
The following plugin added to the pom.xml allows source-jar to be created when performing mvn package:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-source-plugin</artifactId>
<executions>
<execution>
<id>attach-sources</id>
<goals>
<goal>jar</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
The usage of the scala-maven-plugin is :
<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>
<configuration>
<jvmArgs>
<jvmArg>-Xmx12g</jvmArg>
</jvmArgs>
<args>
<arg>-feature</arg>
<arg>-deprecation</arg>
<arg>-target:jvm-1.7</arg>
</args>
</configuration>
</plugin>
However only the java sources are being included: the scala sources are left out. Note that we are using the standard maven directory layout. In particular we have scala sources here:
src/main/scala
So - are there additional options to the maven-source-plugin to encourage it to invite the scala classes to participate? Or a different scala-specific plugin and/or option to get them onboard?
The jar goal of the Maven Source Plugin will bundle all of the sources of the Maven project into a JAR. You can select what to include or exclude in those source folders (with the includes and excludes parameters), but you cannot add whole new source folders to it; they must be added as source folders of the Maven project itself.
When you have a pure Scala project, src/main/scala and src/test/scala are declared as source folders, because you would have:
<sourceDirectory>src/main/scala</sourceDirectory>
<testSourceDirectory>src/test/scala</testSourceDirectory>
in your POM, overriding the default src/main/java and src/test/java. So the Maven Source Plugin would correctly add the sources present in those two folders without additional configuration.
But when you have a mixed Java / Scala project, the <sourceDirectory> and <testSourceDirectory> element are typically left in to their default values. This does not create any problems with regard to compiling or running Scala code with the plugin, as it looks up the files by default in ${project.build.sourceDirectory}/../scala. However, other unrelated Maven plugins can't know about those new folders.
To fix this, the plugin provides the add-source goal, which adds src/main/scala and src/test/scala as source and test source directory to the Maven project, and, thus, makes them available for the other plugins relying on the source directories, like the Maven Source Plugin. You should therefore change your POM to:
<plugin>
<groupId>net.alchim31.maven</groupId>
<artifactId>scala-maven-plugin</artifactId>
<version>3.2.1</version>
<executions>
<execution>
<goals>
<goal>add-source</goal>
<goal>compile</goal>
<goal>testCompile</goal>
</goals>
</execution>
</executions>
<!-- rest of configuration -->
</plugin>
I'm coming from Ant perspective, so pardon me. I realise there are quite a few questions here already on how to maven dependencies, but none of them seem to tell how to do what need to do.
Question 1:
Currently, in conjunction with using maven-war-plugin, when I run mvn war:war, it creates a war folder in target folder.
However, I wish copy all the dependencies' jars to war/WEB-INF/lib set up by google eclipse plugin (with gae enabled, gwt disabled), without overwriting the jars that google eclipse plugin placed there.
I don't wish to setup a war file or war directory. I just need to copy/consolidate all the non-gae jars with the gae jars so that when the project is run as a gae web app, Eclipse would not complain ClassNotFoundException.
Question 2:
When using Ant in Eclipse, I could run Ant targets within Eclipse.
Right now, I have to perform mvn commands from a shell window (which is mutually oblivious to the existence of an Eclipse session). It appears that the only thing that is automatically done is whenever I update dependencies.
Is there a way, or any plugin for eclipse that would allow me to run mvn goals within Eclipse?
Additional info:
mvn dependency:copy-dependencies persists in copying to target/dependency directory, with the following:
<plugin>
<artifactId>maven-dependency-plugin</artifactId>
<executions>
<execution>
<id>copy-dependencies</id>
<phase>process-resources</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<outputDirectory>${basedir}/war/WEB-INF/lib/</outputDirectory>
<overWriteReleases>false</overWriteReleases>
<overWriteSnapshots>false</overWriteSnapshots>
<overWriteIfNewer>true</overWriteIfNewer>
<excludeArtifactIds>gwt-user,gwt-dev</excludeArtifactIds>
</configuration>
</execution>
</executions>
</plugin>
I even tried changing to absolute path
<outputDirectory>
/home/geek/eclipse/workspace/Demo-autoshoppe/holycow
</outputDirectory>
But holycow directory is still empty and mvn still persists in copying to target/dependency directory. My current solution is to softlink target/dependency as war/WEB-INF/lib, which is a very very bad kludge. Why is maven not sensitive to outputDirectory specification? I am using Ubuntu's maven 2.2.
I have the real answer for you, my man.
Use the "default-cli" execution id. Make sure you're using Maven 2.2+. This exec-id applies to command-line executions of the mojo.
<build>
<pluginManagement>
<plugins>
<!-- Copy dependencies to war/WEB-INF/lib for GAE proj compliance. -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<executions>
<execution>
<id>default-cli</id>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<outputDirectory>${basedir}/war/WEB-INF/lib/</outputDirectory>
<overWriteReleases>false</overWriteReleases>
<overWriteSnapshots>false</overWriteSnapshots>
<overWriteIfNewer>true</overWriteIfNewer>
<excludeArtifactIds>gwt-user,gwt-dev</excludeArtifactIds>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</pluginManagement>
</build>
Cheers.
An associate emailed me this answer which works. Trigger the follow through
mvn build or mvn package
but not directly thro mvn dependency:copy-dependencies.
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<executions>
<execution>
<id>copy-dependencies</id>
<phase>package</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<outputDirectory>${basedir}/war/WEB-INF/lib/</outputDirectory>
<overWriteReleases>false</overWriteReleases>
<overWriteSnapshots>false</overWriteSnapshots>
<overWriteIfNewer>true</overWriteIfNewer>
<excludeArtifactIds>gwt-user,gwt-dev</excludeArtifactIds>
</configuration>
</execution>
</executions>
</plugin>
Regarding #1: I'd suggest creating your maven project based off this plugin and archetype http://code.google.com/p/maven-gae-plugin/ (see the GWT based example if you are writing a GWT app for GAE).
Regarding #2: Check out m2eclipse plugin for full maven integration in eclipse. It's written by Sonatype (the creators of maven): http://m2eclipse.sonatype.org/
I'am trying to setup eclipse environment to develop bundles (With maven-bundle-plugin-bnd)
and run & debug that bundles equinox from eclipse
I created sample bundles with org.apache.felix maven-bundle-plugin and can install and start that bundles from eclipse equinox,
but every time i need to run "install file:C:\path\bundle1.jar","install file:C:\path\bundle2.jar" which causes pain. i searched for run configuration but it only intalls and starts (plugin) projects in workspace not maven projects.
What i have done is create maven project and add dependencies(bundle1,bundle2 etc..) and added maven-dependency-plugin to copy all depended bundles in one folder (another problem is equinox use "_" delimeter to determine version of bundles but maven uses "-" as delimeter) if i do not strip version in standalone equinox application i need to give version of bundle in config.ini file but i dont want that, is this proper way to solve this problem?
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<executions>
<execution>
<id>copy-dependencies</id>
<phase>package</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<outputDirectory>${bundleDirectory}</outputDirectory>
<overWriteReleases>false</overWriteReleases>
<overWriteSnapshots>true</overWriteSnapshots>
<stripVersion>true</stripVersion>
</configuration>
</execution>
</executions>
</plugin>
To sum up , i have bundles in folder, which is created with org.apache.felix maven-bundle-plugin , how can i run and debug them from eclipse?
I wouldn't say this is a "proper" solution, but it may work for you.
The antrun plugin can be used to modify the dependencies to replace the final hyphen with an underscore, so the dependency plugin doesn't need to strip the version.
My regex is rusty, but from a little testing the following configuration appears to apply the required name change to the files in the bundleDependency directory.
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<executions>
<execution>
<id>copy-dependencies</id>
<phase>package</phase>
<goals>
<goal>copy-dependencies</goal>
</goals>
<configuration>
<outputDirectory>${bundleDirectory}</outputDirectory>
<overWriteReleases>false</overWriteReleases>
<overWriteSnapshots>true</overWriteSnapshots>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-antrun-plugin</artifactId>
<version>1.3</version>
<executions>
<execution>
<phase>package</phase>
<configuration>
<tasks>
<!-- move within same directory is preferred method for a rename-->
<move todir="${bundleDirectory}">
<fileset dir="${bundleDirectory}"/>
<mapper type="regexp" from="([a-zA-Z0-9\.-]+)(-)([0-9\.]+.jar)"
to="\1_\3"/>
</move>
</tasks>
</configuration>
<goals>
<goal>run</goal>
</goals>
</execution>
</executions>
<dependencies>
<dependency>
<groupId>ant</groupId>
<artifactId>ant-nodeps</artifactId>
<version>1.6.5</version>
</dependency>
</dependencies>
</plugin>
I wrote a tool called auto-builder (http://code.google.com/p/auto-builder). It introspects PDE-based projects and generates Ant build files; it supports transitive closure over dependencies and all that jazz.
I posted a write-up: http://empty-set.net/?p=9. I wrote it because the Maven tools I played with, when integrated with PDE, didn’t “just work.” Basically, I wanted to do coding in PDE and have a Hudson-based CI without any fuss in between.
Generating Ant files is nice because it gives you all the benefits of a declarative build tool, but it leaves you with a procedural description of what it is doing.
I am looking for more PDE-based projects to test it on. There are a couple RFC-0112 Bundle repositories around, and I have some code for downloading dependencies. If anyone is interested, then I could integrate dependencies download with auto-builder.