Apache Maven 3.3 3 Download For Windows 10 64 Bit
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Exception in thread "main" java.lang.IllegalAccessError: tried to access field org.codehaus.plexus.util.Os.OS_NAME from class org.apache.maven.cli.CLIReportingUtils at org.apache.maven.cli.CLIReportingUtils.showVersion(CLIReportingUtils.java:71) at org.apache.maven.cli.MavenCli.cli(MavenCli.java:423) at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:277) at org.apache.maven.cli.MavenCli.main(MavenCli.java:199) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289) at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229) at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415) at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
I've even rebooted my machine a couple times, but the OS does not always recognize the maven command. But when I execute either, cd %M2_HOME%, or cd %M2% it brings me to the installation directory. I've also made sure to add the user variable M2 to the Path system variable.
I solved this by creating all under user variables (including the PATH variable).This is because the system variables do not "translate" the user variables.So if you only want to use maven in your account, you need to add another PATH variable as a user variable, not system variable.
As others have done, creating new System variables M2 and M2_HOME solved the problem. Just making User variables M2 and M2_HOME on my Windows XP machine led to maven not being recognised from the command line. I then deleted the User variables, created copies as System variables and it all came to life.
I had similar issue on Windows 7. At first I setup M2, M2_HOME under User variable but when I echoed %PATH% , I did not see maven bin directory listed under PATH. Then I setup M2, M2_HOME under system variable and it worked.
N.B my %M2_HOME% is pointing to %MV3_HOME% instead of actual absolute path bcos I have multiple version of maven installed and trying to be clever (switch between maven versions on the same box for different project).
I was facing the same issue while executing the command mvn -version; however, I checked I had also set the mvn options in the environment variables setting, which gave me some Heap memory issue on the command prompt. So, I removed the maven options that I had set and then it worked fine for me.
If your downloaded package apache-maven-3.3.9 does not contain a bin folder your download is wrong. you have to download a zip file which contains bin, boot, conf, lib folder otherwise there has gone something wrong. The downloaded file should have about 4.8 mb size. You can check the file via md5 or SHA1 checksums.
But I had the same problem when there was two installation of maven even though all references was pointing to the latest version which in my case was 3.3.9. After deleting the older version the same command recognised maven.
Get rid of the env variable M2_HOME. It is not used by maven 3, and in fact, confuses it. If you had used it in your path, then either define the path to maven bin explictly, or change it to something else - like M3_HOME.
Had an old version of MVN in another directory that showed up in the search path. Removed the old version and everything worked. Used windows file search to scan the drive for all instances of "mvn" to find the old version.
Quick Answer
Based on problems in using M2_HOME related to different Maven versions installed and to simplify things, the usage of M2_HOME has been removed and is not supported any more. Another important change for windows users: The usage of %HOME% has been replaced with %USERPROFILE%
More detailed answer
What you observed has always been a problem with maven. When you install two different versions in the same directory, the older version gets detected, while the newer one is not.
After Maven 3.3.9 was released, the Eclipse Aether project was retired and the code base was migrated to the Apache Maven project. The original goal for the 3.4.0 release was to replace Aether with the exact same code after migration to the Apache Maven project and then proceed with bug fixes to the resolver code as well as other areas of Maven. This never quite happened as intended and the decision was taken to forever burn the 3.4.x release line. The switch to 3.5 brought with it these changes
This problem arise because there is no any environmental variable corresponding to installed maven in your OS.For fixing this problem, I always use Intellij's bundled Maven and do not install separate version of Maven again, for finding bundled Maven's path go to intellij and hit Ctrl+Alt+S -> Build, Execution, Deployment -> Build tool -> Maven -> Maven home directory you can find the intellij's bundled maven path there as below image demonstrates.
If you want to use mvn command from intellij's internal terminal you have to restart intellij after setting environment variables, then you shouldn't have any problem running maven command from terminal.
In windows 7, I Got it resolved after adding the environment variables in system level.If you do not have enough permission try to set the %JAVA_HOME% and the %M2_HOME% in System variables instead of User Variables.
got it solved by first creating new "Path" variable under User variables (note that after fresh windows install Path variable is not created as User variable, only as system)after that, I appended %M2% (pointing to maven dir/bin) to (freshly created) user Path variable. after that restarted cmd window and it worked like a charm.
I did all of this in Windows 10 and still had a problem. In the end it turned out that the path to the Maven home folder was not exactly what was expected in many of these answers as it turned out to be /apache-maven-3.6.3-bin/apache-maven-3.6.3. Once I corrected this for both the system variables and the PATH variable, it worked. In short, if you have set the environment variables up as directed and it still won't work, I would double check to make sure the variables really point to the exact path to the Maven home folder and the bin folder on your machine.
Apache maven installation is really simple. You just need to make sure that JDK is installed and JAVA_HOME is configured correctly. All you do is unzip the maven zip/tar file and add apache-maven-3.6.1/bin to PATH.
The mvn variable is to: C:\Program Files (x86)\Apache Software Foundation\apache-maven-3.1.1\bin
NOTE: The mvn variable is added to the environment variables, but also NOTE that the variable is added to the path as "%mvn%". Adding %mvn% to the path enables mvn to be called in a command LINE of text with arguments.
You can install Maven on Windows with package managers like Chocolatey. Use the appropriate Chocolatey command to install Maven (choco install maven), and Chocolatey will handle the installation and configuration.
Apache Maven required Java Development Kit (JDK) to be installed on the system. Apache Maven 3.3 and above version requires JDK 1.7 or above. So make sure your server fulfills requirements before installing Apache maven.
Apache Maven required MAVEN_HOME and M2_HOME environment variable to set. You also need to add Apache maven bin location under systems PATH environment variable.
On the Maven settings page, in the Maven home path field, specify the location of the Maven custom version installation. For the Maven wrapper, select the use Maven wrapper option from the list. In this case the version of Maven defined in the .mvn/wrapper/maven-wrapper.properties file will be used.
To verify that you have correctly added the apache-maven-3.6.2/bin folder to your PATHs on Linux, Unix, or Mac, type env in your Terminal or Linux Command Line to display all your available PATHs. Verify that the path you added is shown.
If you need to customize the compiler flags used by the plugin, like in development mode, add a configuration section to the plugin block and set the compilerArgs property just as you would when configuring maven-compiler-plugin.You can also set source, target, and jvmArgs.For example, to pass --enable-preview to both the JVM and javac:
By default the generated uber JAR file name will have the -runner suffix, unless it was overriden by configuring a custom one with quarkus.package.runner-suffix configuration option.If the runner suffix is not desired, it can be disabled by setting quarkus.package.add-runner-suffix configuration option to false, in which case the uber JAR will replace the original JARfile generated by maven-jar-plugin for the application module.
The best way to enable CDI bean discovery for a module in a multi-module project would be to include the jandex-maven-plugin,unless it is the main application module already configured with the quarkus-maven-plugin, in which case it will be indexed automatically.
In Maven there appears to be a notion of the top-level project (that is exposed as a project property $session.topLevelProject.basedir.absolutePath)and the multi-module project directory (that is available as property $maven.multiModuleProjectDirectory). These directories might not always match!
The $maven.multiModuleProjectDirectory will be resolved to the first directory that contains .mvn directory as its child going up the workspace file system treestarting from the current directory (or the one specified with the -f argument) from which the mvn command was launched. If the .mvn directory was not found, however,the $maven.multiModuleProjectDirectory will be pointing to the directory from which the mvn command was launched (or the one targeted with the -f argument).
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