invalid target release 1 7

Question

I have seen similar questions  but haven t yet found the answer    Using maven compile  I get     ERROR  Failed to execute goal org apache maven plugins maven-compiler-plugin 3 0 compile  default-compile  on project api  Fatal error compiling  invalid target release  1 7 - gt   Help 1    Here is the pom xml    lt plugin gt       lt groupId gt org apache maven plugins lt  groupId gt       lt artifactId gt maven-compiler-plugin lt  artifactId gt       lt version gt 3 0 lt  version gt       lt configuration gt           lt source gt 1 7 lt  source gt           lt target gt 1 7 lt  target gt           lt encoding gt UTF-8 lt  encoding gt       lt  configuration gt   lt  plugin gt    Javac version   javac 1 7 0 25   Java version   java version  1 7 0 25  Java TM  SE Runtime Environment  build 1 7 0 25-b15  Java HotSpot TM  64-Bit Server VM  build 23 25-b01  mixed mode    Any idea what it could be

User · Answer

When maven is working outside of Eclipse  but giving this error after a JDK change  Go to your Maven Run Configuration  and at the bottom of the Main page  there s a  Maven Runtime  option   Mine was using the Embedded Maven  so after switching it to use my external maven  it worked

User · Answer

You need to set JAVA HOME to your jdk7 home directory  for example on Microsoft Windows     C  Program Files Java jdk1 7 0 40     or on OS X     Library Java JavaVirtualMachines jdk1 7 0 40 jdk Contents Home

User · Answer

This probably works for a lot of things but it s not enough for Maven and certainly not for the maven compiler plugin   Check Mike s answer to his own question here  stackoverflow question 24705877  This solved the issue for me both command line AND within eclipse   Also   LinGao answer to stackoverflow question 2503658 and the use of the   JAVACMD variable might help but I haven t tested it myself

User · Answer

Other than setting JAVA HOME environment variable  you got to make sure you are using the correct JDK in your Maven run configuration  Go to Run -  Run Configuration  select your Maven Build configuration  go to JRE tab and set the correct Runtime JRE

User · Answer

In IntelliJ IDEA this happened to me when I imported a project that had been working fine and running with Java 1 7  I apparently hadn t notified IntelliJ that java 1 7 had been installed on my machine  and it wasn t finding my  JAVA HOME   On a Mac  this is resolved by   Right clicking on the module   Module Settings   Project   and adding the 1 7 SDK by selecting  New  in the Project SDK   Then go to the main IntelliJ IDEA menu   Preferences   Maven   Runner  and select the correct JRE  In my case it updated correctly Use Project SDK  which was now 1 7

[java] invalid target release: 1.7

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