Unlike Eclipse Oxygen, Eclipse 2021.12 does not seem to recognize multimodule springboot projects. Java Run does not appear for the main program. I cannot screenshare the project.
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I have a Maven project in eclipse and I am using the eclipse m2e plugin to manage the Maven dependencies in eclipse.
The m2e plugin is smart enough to let eclipse treat the maven dependencies as a eclipse library and hence I am able to launch and debug my samples and test code from the eclipse.
This all works fine until I have to work with .mar files from axis (specifically addressing.mar). Now this is mentioned as an dependency in the pom.xml, but eclipse is not able to recognize this as a library during runtime until i explicitly add it to the classpath. Is there a way to let eclipse become aware of addressing.mar as a library that is coming from the maven dependencies.
In my team, some of them are using Netbeans and some of them using Eclipse, so in our Subversion repository for each JAVA project we have Netbeans & Eclipse project files.
I do want to keep Netbeans & Eclipse project setting files inside the JAVA project, they are specific to IDEs.
Please help me to maintain only the JAVA source files inside the subversion.
Use a common build infrastructure, like maven. This encapsulates (as good as) all settings inside the maven pom.xml files (source encoding, java version etc.).
Also versioned library dependencies, subprojects are managed in maven.
NetBeans knows maven out-of-the-box, and eclipse has a good maven plugin.
In my experience manual configuration, especially in eclipse, and grown ant scripts, are cumbersome.
I made simple maven project and I opened it with Eclipse. I have installed maven plugin for Eclipse. I'm interested in following:
How Eclipse compiles code when I hit save on my source code (does it use configuration from ant or maven or something else)?
When I run tests from JUnit plugin for Eclipse those Eclipse calls mvn test (I suppose not, but what is then happening exactly)?
Is it possible that maven does the build successfully but Eclipse is
showing errors in code?
The Maven Integration for Eclipse makes it easier to edit POM files, allows you to execute maven builds from within Eclipse and to help with dependency management. It doesn't actually compile your code (unless of course you execute a maven build from within Eclipse). The main help is with the dependency management and writing the .classpath file of your project within Eclipse.
To try and answer your questions:
Eclipse uses its standard mechanism to compile code. With a standard eclipse for java developers your project will have a Java Project nature and Eclipse will then use the Java Development Tools - JDT to compile the code. (Internally this uses an incremental builder to build the code http://help.eclipse.org/juno/index.jsp?topic=%2Forg.eclipse.platform.doc.isv%2Fguide%2FresAdv_builders.htm). What source files it will compile and where it will place the resultant .class files is configured in your project's Java Build Path (which I am guessing the maven plugin may well configure for you)
JUnit support is part of the Java Development Tools as well.
It is possible that maven will successfully build a project outside of Eclipse, but that the same project will show errors within Eclipse. This is usually down to classpath errors (dependencies defined in the project's POM not being added to the classpath in Eclipse). If you are using the maven plugin with eclipse this probably shouldn't happen. If you are not using the maven plugin within eclipse you can execute maven eclipse:eclipse to have maven update the Eclipse .classpath file of the project which should then fix any of these problems.
While installing the open-source software like Mahout, I read some notes like
Convert Maven project of Mahout into Eclipse project
What does this mean? What's the difference between a Maven project and Eclipse project?
Install Maven if you haven't already done it.
Enter the command prompt or a shell and navigate to the directory where the Mahout is located (there's a pom.xml file). Type the command:
mvn eclipse:eclipse
which will create project files for Eclipse and open the project in Eclipse.
No conversion is needed. Eclipse supports Maven projects, and vice-versa.
Difference between these two projects yield from the difference of the tools. Eclipse is an IDE and Maven is a build tool. In fact, IDE is a superset of a build tool. That's why Eclipse may use Maven for building. Common properties between the projects relate to how the build is being done and Eclipse has a set of properties aimed to persist the state between programming sessions.
I basically have 2 questions:
Is there a way to invoke maven console from eclipse? (where I could write eclipse:eclipse, and it started building eclipse project)
Where does STS unpack it's maven? I'd like to add that path to env variables, so that I could use it from my windows console.
Is there a way to invoke maven console from eclipse? (where I could write eclipse:eclipse, and it started building eclipse project)
You could open a shell inside eclipse , cd into the right directory and run the maven console from there. But, when using M2Eclipse (see next point), you're not supposed to run eclipse:eclipse.
Where does STS unpack it's maven? I'd like to add that path to env variables, so that I could use it from my windows console.
STS bundles M2Eclipse which comes with an embedded version of Maven (so it doesn't "unpack" Maven). But you can Configure M2Eclipse to use an external version. Go to window > Preference > Maven > Installations and Add... your external install:
Try the m2eclipse plugin from sonatype and you can eliminate use of 'mvn eclipse:eclipse' altogether. After installing m2eclipse and restarting eclipse, select File->Import->Maven->Existing Maven project. Browse to your maven project and select it. The m2eclipse plugin reads the pom and creates an eclipse project (this is the step that 'mvn eclipse:eclipse' gives). There are other useful features of the m2eclipse plugin including pom editor.
m2eclipse project is moving out of sonatype into the eclipse foundation project page and will be released on the Indigo train.
See this page for more info on m2eclipse: http://m2eclipse.sonatype.org/