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Java "Hello World" project convert to Maven Project and it stopped working with error

"Error: Could not find or load main class...."

Hi All,

I did lot of search in google but couldn't find any Hello World program for Selenium 2 ( WebDriver )+ Java + Maven + Eclipse setup instructions

I'm having below setup

  1. Eclipse with Maven plugin
  2. Created a Java project "Hello World" and it worked fine when ran as "Java Application"
  3. Then converted this to Marven Project.
  4. Tried to run whole project but it didn't run
  5. Tried to run Hello World file and it's consistently failed with error "Error: Could not find or load main class...."

Questions:

  1. How to setup and run basis selenium 2 program with maven inside Eclipse
  2. Why java stopped working after converting to Maven project.

Thanks in advance.

Regards, Vikram

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Cannot reproduce.

Here's how I did it (Eclipse 4.3 Kepler, Oracle JDK 7u25):

  1. I made a new Hello World Java project (right click in the Package Explorer -> New -> Java project):

    New Java project

  2. I named it Hello World and clicked Finish. I created a new package in the src folder named hello and a new class HelloWorld in it:

    New package and class created

  3. I implemented the HelloWorld class and ran it (F11):

    Hello World impl

    Hello world impl result

  4. I converted the project to a Maven Project (right click on the project -> Configure -> Convert to Maven Project), clicked Finish

    Convert to Maven Project

  5. I fixed the errors Maven was throwing at me.

    It said "Project build error: 'artifactId' with value 'Hello World' does not match a valid id pattern.", so I figured Hello World might be invalid because of the space. I was right. Removing the space from Artifact Id and Group Id fixed the build.

    Before:

    Before fixing Maven project

    After (don't forget to save the file via Ctrl+s):

    After fixing Maven project

  6. Right now, everything worked as intended. The HelloWorld class, when ran, still output the same thing as before. The project now had a slightly different folder structure (new bin and target folders, new pom.xml file):

    Maven Project file structure

  7. I added Selenium dependancy. Open pom.xml, click the Dependencies tab, click Add..., find Selenium-java, specify version 2.33.0.

    Add Selenium dependancy

    After I clicked OK and saved the POM file, I had to wait for Maven to download all the Selenium goodies and dependencies, that took a while (observe the Progress toolbar in Eclipse doing something).

    The only thing that changed was that the project structure had a new Maven Dependencies item containing Selenium and all of its depenedencies.

    Maven Dependencies

  8. I was ready to roll with Selenium:

    Selenium Hello World

    When run, this opens Firefox, goes to Google and finishes.

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7 Comments

Try driver.close() to see if driver is able to close one tab
@IowA Are you sure you posted your comment to the right answer? Because I have no idea what your comment has to do with anything in here. 1) We have no problem with closing anything. 2) WebDriver doesn't support tabs, only windows, so technically close() closes a window. Can you elaborate on what you meant?
Hi Slanec, Thanks for detailed answer. I re-tried same steps as you had mentioned but still no luck. Getting below error in pom.xml "Plugin execution not covered by lifecycle configuration: org.apache.maven.plugins:maven-compiler-plugin:3.1:testCompile (execution: default-testCompile, phase: test-compile)" . Is this error in pom.xml not allowing to run simple java program ? And how to fix this pom.xml issue. Thanks in advance.
I'm on my cell phone, but when I'll be back at my PC, I'll post here my pom.xml, my maven and my m2e versions. In the meantime, I remember a similar issue that was solved by wrapping all your plugin stuff in the POM into a <pluginManagement> tag.
Please find below version from my Windows Vista ... Eclipse Standard/SDK Kepler Release , m2e - Maven Integration for Eclipse 1.4.0.xxxx . Some other post I saw comment saying there may be issue with Maven plugin version . Please share your versions screen shot.
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