How To Fix Invalid Target Release: 1.7, 1.8, 1.9, Or 1.10 Fault Inwards Maven Build

If you lot are edifice your Java projection using Maven, mayhap inwards Eclipse or from the ascendance prompt past times running mvn install together with your construct is failing amongst an mistake similar "invalid target release: 1.7" or "invalid target release: 1.8" together with then you lot receive got come upward to the right place. In this article, I'll present you lot the argue why this mistake occurs together with how you lot tin bargain amongst these errors fifty-fifty amongst higher Java version similar Java 9, 10 installed on your machine, or mayhap amongst Java eleven inwards the coming month. The root drive of the work is that you lot receive got specified a higher Java version inwards your pom.xml file for Maven compiler plugin together with then what Maven knows inwards your system, together with that's why it's proverb invalid target release.

Influenza A virus subtype H5N1 elementary solution to this work is either trim down your target version inwards pom.xml or install a novel Java version if you lot desire to construct your projection inwards higher version

But, the key to solving this work is knowing that Maven picks the Java version from the JAVA_HOME variable together with non from the PATH environs variable. 

This agency fifty-fifty if you lot receive got JDK 8 installed but if your JAVA_HOME is withal referring to JDK 1.7 together with then you lot volition acquire this error.

Thankfully, you lot tin uncovering out that, I hateful which version of Java your Maven is using. Just run the mvn -version ascendance from the ascendance prompt together with it volition impress the value of JAVA_HOME variable together with confirm that which version of JDK it is using to construct your project.

Btw, if you lot are starting amongst Java together with Maven together with non familiar amongst key concepts similar PATH, CLASSPATH, JAVA_HOME etc, I advise you lot to The Complete Java Masterclass to larn to a greater extent than those together with how Java industrial plant inwards general, together with if you lot desire to larn Maven or simply refresh the basic concepts, Maven Crash Course is a dainty course of report to get-go with.

Invalid target release: 1.7 

Recently I was edifice a Java projection using Maven on my former machine when I encountered this error. I idea I receive got the latest Java version which I had together with that's why I surprised amongst this error.

Here is what my Maven pom.xml looks like:

<plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>3.0</version> <configuration> <source>1.7</source> <target>1.7</target> <encoding>UTF-8</encoding> </configuration> </plugin>

Here is an event output of mvn -version:

$ mvn -version
Apache Maven 3.2.3 (33f8c3e1027c3ddde99d3cdebad2656a31e8fdf4; 2014-08-12T04:58:10+08:00
Maven home: C:\apache-maven-3.2.3
Java version: 1.6.0_37, vendor: Lord's Day Microsystems Inc.
Java home: C:\jdk1.6.0_37\jre
Default locale: en_US, platform encoding: Cp1252
OS name: "windows 7", version: "6.1", arch: "x86", family: "windows"

You tin regard that Maven inwards my machine was using JDK 1.6.0_37 together with that's why when I was edifice my Maven projection amongst JDK 1.7 every bit the target it was failing.

Once I updated the pom.xml to operate target 1.6 the construct was started working.

Because Java vii was non required for my project, I simply had to modify the Maven compile plugin every bit follows:

<plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>3.0</version> <configuration> <source>1.6</source> <target>1.6</target> <encoding>UTF-8</encoding> </configuration> </plugin>

But, if you lot receive got to construct your Java projection amongst JDK 1.7 together with then simply install together with update your JAVA_HOME variable together with this mistake volition become away.

This solution is actually dainty every bit you lot tin solve the work immediately. Btw, if you lot desire to larn nigh Maven itself, I advise you lot accept a await at the Windows and Linux.

Btw, If you lot are working inwards the restricted environs similar in a big company where Software is deployed automatically together with can't add together or edit an environs variable, you lot tin withal modify them inwards the local musical rhythm every bit shown inwards my before article How to laid a specific Java version for Maven inwards Windows.

Invalid target release: 1.9

This mistake volition come upward if your maven compiler plugin has <target>1.9</target> but JAVA_HOME variable inwards your machine is referring to a Java version which is lower than JDK 1.9 e.g. JDK 1.8 or JDK 1.7.

As explained inwards the previous department either modify the target into pom.xml or install a novel JDK together with updated the JAVA_HOME environs variable to indicate out novel JDK bin directory.

Since Maven uses JAVA_HOME, it volition non solve the work until you lot update this environs variable, fifty-fifty if you lot receive got installed the right version of Java.

Similarly, you lot volition acquire Invalid target release: 1.10 if you lot compile using <target>1.10</target> and your JAVA_HOME is referring to JDK nine or JDK 8.

Now you lot tin generalize this work together with solve depending upon which version of Java you lot receive got specified inwards your pom.xml together with which version of Java is installed on your machine together with referred past times the JAVA_HOME environs variable.


Further Learning
Maven Crash Course
answer)

How to increase the heap size of Maven? (steps)

How to laid upward Maven Eclipse Dependency search non working issue? (solution)

How to install Maven inwards Windows 10? (steps)

How to construct a Java projection using ANT? (article)

How to exercise or modify build.xm inwards ANT? (tutorial)

Top v Apache Maven Books for Free (books)

10 Points nigh Maven Java Developer should know (maven)

10 Maven Plugins Every Java Developers should know (plugins)

6 Free Maven together with Jenkins Courses for Java developers (courses)

How to laid a specific Java version for Maven (tutorial)

Thanks for reading this article thence far. If you lot grapple to solve your work past times next these tips together with then delight portion amongst your friends together with colleagues. If you lot are withal facing issues together with then delight drib a banking concern complaint together with nosotros may survive able to solve your work together.