ERROR Source option 1 5 is no longer supported Use 1 6 or later

Question

It all happens when I was trying to build a springboot application by   mvnw clean install  When I first run the install command  it runs into following problem    INFO  ------------------------------------------------------------------------  INFO  BUILD FAILURE  INFO  ------------------------------------------------------------------------  INFO  Total time  2 749s  INFO  Finished at  Fri Jun 21 02 14 32 IST 2013  INFO  Final Memory  4M 15M  INFO  ------------------------------------------------------------------------    ERROR  Failed to execute goal org apache maven plugins maven-compiler-plugin 2 3 2 compile  default-compile  on project spring-social-twitter4j  Execution default-compile of goal org apache maven plugins maven-compiler-plugin 2 3 2 compile failed  A required class was missing while executing org apache maven plugins maven-compiler-plugin 2 3 2 compile  org codehaus plexus compiler CompilerException    ERROR  -----------------------------------------------------  ERROR  realm      plugin gt org apache maven plugins maven-compiler-plugin 2 3 2  ERROR  strategy   org codehaus plexus classworlds strategy SelfFirstStrategy  ERROR  urls 0    file  C  Users SS 20Computer  m2 repository org apache maven plugins maven-compiler-plugin 2 3 2 maven-compiler-plugin-2 3 2 jar  ERROR  urls 1    file  C  Users SS 20Computer  m2 repository org codehaus plexus plexus-utils 1 1 plexus-utils-1 1 jar  ERROR  Number of foreign imports  1  ERROR  import  Entry import  from realm ClassRealm maven api  parent  null    ERROR    ERROR  -----------------------------------------------------  org codehaus plexus compiler CompilerException  ERROR  - gt   Help 1   ERROR    ERROR  To see the full stack trace of the errors  re-run Maven with the -e switch   ERROR  Re-run Maven using the -X switch to enable full debug logging   ERROR    ERROR  For more information about the errors and possible solutions  please read the following articles   ERROR   Help 1  http   cwiki apache org confluence display MAVEN PluginContainerException   I searched the problem on Stackoverflow and was able to solve this problem by the post  Failed to execute goal org apache maven plugins maven-compiler-plugin 2 3 2 compile  default-compile   Then  I got into another problem   ERROR  Source option 1 5 is no longer supported  Use 1 6 or later   ERROR  Target option 1 5 is no longer supported  Use 1 6 or later    I m on OS X  mvn -v shows   Maven home   Users matthuntington Desktop apache-maven-3 5 0 Java version  9  vendor  Oracle Corporation Java home   Library Java JavaVirtualMachines jdk-9 jdk Contents Home Default locale  en US  platform encoding  UTF-8 OS name   mac os x   version   10 12 6   arch   x86 64   family   mac    Here is my pom file   lt  xml version  1 0  encoding  UTF-8   gt   lt project xmlns  http   maven apache org POM 4 0 0  xmlns xsi  http   www w3 org 2001 XMLSchema-instance      xsi schemaLocation  http   maven apache org POM 4 0 0 http   maven apache org xsd maven-4 0 0 xsd  gt       lt modelVersion gt 4 0 0 lt  modelVersion gt        lt groupId gt com packtpub restapp lt  groupId gt       lt artifactId gt ticket-management lt  artifactId gt       lt version gt 0 0 1-SNAPSHOT lt  version gt       lt packaging gt jar lt  packaging gt        lt name gt ticket-management lt  name gt       lt description gt Demo project for Spring Boot lt  description gt        lt properties gt           lt project build sourceEncoding gt UTF-8 lt  project build sourceEncoding gt           lt project reporting outputEncoding gt UTF-8 lt  project reporting outputEncoding gt       lt  properties gt         lt dependencies gt               lt dependency gt               lt groupId gt org springframework lt  groupId gt               lt artifactId gt spring-web lt  artifactId gt               lt version gt 5 0 1 RELEASE lt  version gt           lt  dependency gt            lt dependency gt               lt groupId gt org springframework boot lt  groupId gt               lt artifactId gt spring-boot-starter lt  artifactId gt               lt version gt 1 5 7 RELEASE lt  version gt           lt  dependency gt            lt dependency gt               lt groupId gt org springframework boot lt  groupId gt               lt artifactId gt spring-boot-starter-tomcat lt  artifactId gt               lt version gt 1 5 7 RELEASE lt  version gt           lt  dependency gt            lt dependency gt               lt groupId gt com fasterxml jackson core lt  groupId gt               lt artifactId gt jackson-databind lt  artifactId gt               lt version gt 2 9 2 lt  version gt           lt  dependency gt           lt dependency gt               lt groupId gt org springframework lt  groupId gt               lt artifactId gt spring-web lt  artifactId gt               lt version gt 5 0 0 RELEASE lt  version gt           lt  dependency gt           lt dependency gt               lt groupId gt org springframework lt  groupId gt               lt artifactId gt spring-webmvc lt  artifactId gt               lt version gt 5 0 1 RELEASE lt  version gt           lt  dependency gt            lt dependency gt               lt groupId gt org springframework boot lt  groupId gt               lt artifactId gt spring-boot-starter-test lt  artifactId gt               lt scope gt test lt  scope gt               lt version gt 1 5 7 RELEASE lt  version gt                           lt  dependency gt          lt  dependencies gt        lt build gt           lt plugins gt               lt plugin gt                   lt groupId gt org springframework boot lt  groupId gt                   lt artifactId gt spring-boot-maven-plugin lt  artifactId gt               lt  plugin gt           lt  plugins gt       lt  build gt     lt  project gt

User · Answer

I think this means that

You are using JDK9 or later
Your project uses maven-compiler-plugin with an old version which defaults to Java 5.

You have three options to solve this

Downgrade to JDK7 or JDK8 (meh)
Use maven-compiler-plugin version or later, because

NOTE: Since 3.8.0 the default value has changed from 1.5 to 1.6 See https://maven.apache.org/plugins/maven-compiler-plugin/compile-mojo.html#target
```
<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-compiler-plugin</artifactId>
    <version>3.8.0</version>
</plugin>
```
Indicate to the maven-compiler-plugin to use source level 6 and target 6 (or later).

Best practice recommended by https://maven.apache.org/plugins/maven-compiler-plugin/

Also note that at present the default source setting is 1.6 and the default target setting is 1.6, independently of the JDK you run Maven with. You are highly encouraged to change these defaults by setting source and target as described in Setting the -source and -target of the Java Compiler.
```
<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-compiler-plugin</artifactId>
    <configuration>
        <source>1.6</source>
        <target>1.6</target>
    </configuration>
</plugin>
```
or use
```
<properties>
  <maven.compiler.source>1.6</maven.compiler.source>
  <maven.compiler.target>1.6</maven.compiler.target>
</properties>
```

User · Answer

Make sure you have following configuration in your pom xml file   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

User · Answer

In IntelliJ   Open Project Structure       gt  Modules  gt  YOUR MODULE - gt  Language level  set 9  in your case  Repeat for each module

User · Answer

I got this error   quot Source option 5 is no longer supported  Use 6 or later quot  after I changed the pom xml  lt java version gt 7 lt  java version gt   to  lt java version gt 11 lt  java version gt   Later to realise the property was used with a dash insteal of a dot     lt source gt   java-version  lt  source gt     lt target gt   java-version  lt  target gt    swearings   I replaced the dot with a dash and the error went away   lt java-version gt 11 lt  javaversion gt

User · Answer

There can be corrupted jar file for which it may show error as  ZipFile invalid LOC header  bad signature   You need to delete all jar files for which it shows the error and add this Dependency    lt dependency gt       lt groupId gt javax servlet lt  groupId gt       lt artifactId gt servlet-api lt  artifactId gt       lt version gt 3 0-alpha-1 lt  version gt       lt scope gt provided lt  scope gt   lt  dependency gt

User · Answer

For me the solution was to set the version of the maven compiler plugin to 3 8 0 and specify the release  9 for in your case  11 in mine        lt plugin gt         lt artifactId gt maven-compiler-plugin lt  artifactId gt         lt version gt 3 8 0 lt  version gt         lt configuration gt           lt release gt 11 lt  release gt         lt  configuration gt       lt  plugin gt

User · Answer

This worked for me       lt  xml version  1 0  encoding  UTF-8   gt    lt project xmlns  http   maven apache org POM 4 0 0           xmlns xsi  http   www w3 org 2001 XMLSchema-instance           xsi schemaLocation  http   maven apache org POM 4 0 0 http   maven apache org xsd maven-4 0 0 xsd  gt       lt modelVersion gt 4 0 0 lt  modelVersion gt        lt groupId gt academy learnprogramming lt  groupId gt       lt artifactId gt hello-maven lt  artifactId gt       lt version gt 1 0-SNAPSHOT lt  version gt   lt dependencies gt       lt dependency gt           lt groupId gt ch qos logback lt  groupId gt           lt artifactId gt logback-classic lt  artifactId gt           lt version gt 1 2 3 lt  version gt       lt  dependency gt    lt  dependencies gt   lt build gt       lt plugins gt           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 7 0 lt  version gt               lt configuration gt                   lt target gt 10 lt  target gt                   lt source gt 10 lt  source gt                   lt release gt 10 lt  release gt               lt  configuration gt            lt  plugin gt       lt  plugins gt   lt  build gt   lt  project gt

User · Answer

You need to set JDK 1 5 to your project and also all dependent project or jar file should also compiled with JDK 1 5

User · Answer

This error might be also for plugin versions  You can fix it in the  POM file like the followings    lt build gt       lt plugins gt           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 2 3 1 lt  version gt               lt configuration gt                   lt source gt 1 6 lt  source gt                   lt target gt 1 6 lt  target gt               lt  configuration gt           lt  plugin gt       lt  plugins gt   lt  build gt

User · Answer

You can specify maven source target version by adding these properties to your pom xml file   lt properties gt       lt maven compiler source gt 1 6 lt  maven compiler source gt       lt maven compiler target gt 1 6 lt  maven compiler target gt   lt  properties gt

[spring-boot] ERROR Source option 1.5 is no longer supported. Use 1.6 or later

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