How do you specify the Java compiler version in a pom xml file

Question

I wrote some Maven code in Netbeans that has approximately more than 2000 lines  When I compile it on Netbeans  everything is fine  but if I want to run it on command line  I will get these errors  generics are not supported in -source 1 3  use -source 5 or higher to enable generics          ArrayList lt ArrayList lt Integer gt  gt  list   new ArrayList lt ArrayList lt Integer gt  gt      generics are not supported in -source 1 3  use -source 5 or higher to enable generics          HashSet lt Double gt  resid List   new HashSet lt Double gt  Arrays asList resid val     generics are not supported in -source 1 3  use -source 5 or higher to enable generics          List lt Integer gt  ind ovlpList   new ArrayList lt Integer gt  Arrays asList ind ovlp     generics are not supported in -source 1 3  use -source 5 or higher to enable generics  public class ColumnComparator implements Comparator lt double   gt     annotations are not supported in -source 1 3  use -source 5 or higher to enable annotations   Override  I tried to use Java 1 3 1  compiler errors  but I got more errors  I found from other posts that I should modify pom xml  but I do not know how  Here is my pom xml  lt project xmlns  quot http   maven apache org POM 4 0 0 quot  xmlns xsi  quot http   www w3 org 2001 XMLSchema-instance quot    xsi schemaLocation  quot http   maven apache org POM 4 0 0 http   maven apache org xsd maven-4 0 0 xsd quot  gt     lt modelVersion gt 4 0 0 lt  modelVersion gt      lt groupId gt com mycompany lt  groupId gt     lt artifactId gt mavenmain lt  artifactId gt      lt version gt 1 0-SNAPSHOT lt  version gt      lt packaging gt jar lt  packaging gt       lt name gt mavenmain lt  name gt       lt url gt http   maven apache org lt  url gt       lt properties gt        lt project build sourceEncoding gt UTF-8 lt  project build sourceEncoding gt       lt  properties gt       lt dependencies gt        lt dependency gt          lt groupId gt junit lt  groupId gt           lt artifactId gt junit lt  artifactId gt          lt version gt 3 8 1 lt  version gt          lt scope gt test lt  scope gt        lt  dependency gt        lt dependency gt           lt groupId gt gov nist math lt  groupId gt           lt artifactId gt jama lt  artifactId gt           lt version gt 1 0 2 lt  version gt        lt  dependency gt      lt  dependencies gt    lt  project gt   It would be great if you can help me

User · Answer

maven-compiler-plugin it s already present in plugins hierarchy dependency in pom xml  Check in Effective POM  For short you can use properties like this   lt properties gt      lt maven compiler source gt 1 8 lt  maven compiler source gt      lt maven compiler target gt 1 8 lt  maven compiler target gt   lt  properties gt   I m using Maven 3 2 5

How do you specify the Java compiler version in a pom.xml file?

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