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Getting “Skipping JaCoCo execution due to missing execution data file” upon executing JaCoCo

jacoco-maven-plugin:0.7.10-SNAPSHOT From jacoco:prepare-agent that says: One of the ways to do this in case of maven-surefire-plugin – is to use syntax for late property evaluation: Note the @{argLine} that’s added to -your -extra -arguments. Thanks Slava Semushin for noticing the change and reporting in the comment. jacoco-maven-plugin:0.7.2-SNAPSHOT Following jacoco:prepare-agent that says: [org.jacoco:jacoco-maven-plugin:0.7.2-SNAPSHOT:prepare-agent] Prepares a property pointing to the JaCoCo runtime agent that can be passed as … Read more

How are “mvn clean package” and “mvn clean install” different?

Well, both will clean. That means they’ll remove the target folder. The real question is what’s the difference between package and install? package will compile your code and also package it. For example, if your pom says the project is a jar, it will create a jar for you when you package it and put it … Read more

“webxml attribute is required” error in Maven

It would be helpful if you can provide a code snippet of your maven-war-plugin. Looks like the web.xml is at right place, still you can try and give the location explicitly

web.xml is missing and is set to true

You can do it also like this: Right click on Deployment Descriptor in Project Explorer. Select Generate Deployment Descriptor Stub. It will generate WEB-INF folder in src/main/webapp and an web.xml in it.

mvn command is not recognized as an internal or external command

Restart your machine, after setting up your M2_HOME (pointing to you Maven basedir, NOT the bin dir) and PATH (PATH=%M2_HOME%\bin;%PATH%). Then do: If there is a .bat file, it should work under Windows, as it appears to be finding it. If there isn’t one, then your paths are not right and you need to make … Read more

A fatal error has been detected by the Java Runtime Environment. EXCEPTION_ACCESS_VIOLATION

This is a bug inside JRE. You can do nothing about this, just send a bug report to the link provided: http://bugreport.java.com/bugreport/crash.jsp Try to use 32-bit version instead of 64. Try to use another JRE version (not 6.0_27-b07).

No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK?

On your Eclipse IDE, go into Window > Preferences > Java > Installed JREs > and check your installed JREs. You should have an entry with a JDK there. Select the Execution Env as show below. Click OK Then Right-Click on your Project -> Maven -> Update Project Additionally, you may have to change Maven … Read more

JAVA_HOME should point to a JDK not a JRE

Control Panel -> System and Security -> System -> Advanced system settings -> Advanced -> Environment Variables -> New System Variable

Error: JAVA_HOME is not defined correctly executing maven

Assuming you use bash shell and installed Java with the Oracle installer, you could add the following to your .bash_profile This would pick the correct JAVA_HOME as defined by the Oracle installer and will set it first in your $PATH making sure it is found. Also, you don’t need to change it later when updating Java. EDIT As per the … Read more

how to run the command mvn eclipse:eclipse

The m2e plugin uses it’s own distribution of Maven, packaged with the plugin. In order to use Maven from command line, you need to have it installed as a standalone application. Here is an instruction explaining how to do it in Windows Once Maven is properly installed (i.e. be sure that MAVEN_HOME, JAVA_HOME and PATH variables are set correctly): you must run mvn … Read more

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