CODEWITHSUNDEEP
javamavenspring-bootintellij-ideamaven-compiler-plugin
Aminul
Aminul

Reputation: 1647

Intellij maven project Fatal error compiling: invalid flag: --release

I am trying to start with Spring-boot, Maven in Intellij Please help me I am getting the error:

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.7.0:compile (default-compile) on project spring-rest: Fatal error compiling: invalid flag: --release -> [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/MojoExecutionException
Process finished with exit code 1

My pom.xml is:

<?xml version="1.0" encoding="UTF-8"?> <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">
       <modelVersion>4.0.0</modelVersion>

       <groupId>com.example</groupId>
       <artifactId>spring-rest</artifactId>
       <version>3.1.3.RELEASE</version>
       <packaging>war</packaging>

       <name>spring-rest</name>
       <description>Demo project for Spring Boot</description>

       <parent>
           <groupId>org.springframework.boot</groupId>
           <artifactId>spring-boot-starter-parent</artifactId>
           <version>2.0.0.RELEASE</version>
           <relativePath/> <!-- lookup parent from repository -->
       </parent>

       <properties>
           <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
           <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
           <java.version>1.8</java.version>
       </properties>

       <dependencies>

           <dependency>
               <groupId>org.springframework.boot</groupId>
               <artifactId>spring-boot-starter-security</artifactId>
               <version>2.0.0.RELEASE</version>
           </dependency>

         <dependency>
           <groupId>org.springframework.boot</groupId>
           <artifactId>spring-boot-starter</artifactId>
         </dependency>

           <dependency>
               <groupId>org.springframework.boot</groupId>
               <artifactId>spring-boot-starter-data-jpa</artifactId>
           </dependency>
           <dependency>
               <groupId>org.springframework.boot</groupId>
               <artifactId>spring-boot-starter-web</artifactId>
           </dependency>

           <dependency>
               <groupId>org.hibernate.javax.persistence</groupId>
               <artifactId>hibernate-jpa-2.1-api</artifactId>
               <version>RELEASE</version>
           </dependency>


           <dependency>
               <groupId>mysql</groupId>
               <artifactId>mysql-connector-java</artifactId>
               <scope>runtime</scope>
           </dependency>
           <dependency>
               <groupId>org.springframework.boot</groupId>
               <artifactId>spring-boot-starter-test</artifactId>
               <scope>test</scope>
           </dependency>
       </dependencies>

       <build>
           <plugins>
               <plugin>
                   <groupId>org.springframework.boot</groupId>
                   <artifactId>spring-boot-maven-plugin</artifactId>
               </plugin>

               <plugin>
                   <groupId>org.apache.maven.plugins</groupId>
                   <artifactId>maven-compiler-plugin</artifactId>
                   <version>3.7.0</version>
                   <configuration>
                       <source>1.8</source>
                       <target>1.8</target>
                       <release>8</release>
                       <verbose>true</verbose>
                   </configuration>
               </plugin>
           </plugins>
       </build>

   </project>

Upvotes: 139

Views: 219402

Answers (13)

Irfan
Irfan

Reputation: 31

This may happen when you have more than one JDKs installed. And your JAVA_HOME is set to an older JDK(e.g. Java 8).

  • Change your JAVA_HOME to latest JDK(e.g Java 17)
  • Must check this if you are running maven from the command line

Upvotes: 1

Hugo Yip
Hugo Yip

Reputation: 11

Changing 3.1.3 to 2.7.10 should fix it:

<groupId>com.example</groupId>
<artifactId>spring-rest</artifactId>
<version>3.1.3.RELEASE</version>
<packaging>war</packaging>

Upvotes: 1

Theri Muthu Selvam
Theri Muthu Selvam

Reputation: 162

Use mvn -v in cmd to find the java version.

In your case, you have declared java 8 in pom.xml, use the same in the JAVA_HOME of environment variables, this will resolve the issue.

Upvotes: 4

Cyro
Cyro

Reputation: 83

I was getting this error with Java v8, then resolved the issue by updating to Java v11, updating JAVA_HOME, and updating my IntelliJ SDK settings to use the new jdk.

Upvotes: 3

Lova Chittumuri
Lova Chittumuri

Reputation: 3313

Set the $MAVEN_HOME and JAVA_HOME in environment Properties

  1. Check the maven version ( C:>mvn -version )

  2. Check the Java Version ( C:>java -version )

Add the below code snip in pom.xml file and change the version number of maven

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-compiler-plugin</artifactId>
    <version>3.7.0</version> // replace the maven version number 
    <configuration>
        <source>1.8</source>
        <target>1.8</target>
        <verbose>true</verbose>
    </configuration>
</plugin>

Upvotes: 1

Sreehari suresh
Sreehari suresh

Reputation: 1

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.10.1:testCompile (default-testCompile) on project selenium-for-beginners: Execution default-testCompile of goal org.apache.maven.plugins:maven-compiler-plugin:3.10.1:testCompile failed: multiple points -> [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/PluginExecutionException

When trying to do a Selenium maven beginner project if you are running into this trouble/issue. Please try to change the maven plugin in the pom.xml file. Use Plugin for "Compile Using the --release javac option (JDK 9+)". This should work.

Upvotes: 0

Nitish Sahu
Nitish Sahu

Reputation: 91

This is mostly because of the java version mismatch. Managing more than one java version for projects can be painful.

I am working simultaneously on projects asking for different versions of java and have been using jenv for switching the java versions.

More details here

Upvotes: 2

Raulster24
Raulster24

Reputation: 503

I faced this problem too, check your JAVA_HOME environment variable. I was setting the value of release to 11 as I am using JAVA 11. My System JAVA_HOME was set for java 8, After adding the JAVA_HOME user environment variable to the java 11 path this got resolved.

Upvotes: 24

Domenico
Domenico

Reputation: 1491

An alternative approach is to directly set the compiler flags inside your properties tag instead of using the <configuration> tag of the compiler plugin:

<properties>
       <maven.compiler.source>8</maven.compiler.source>
       <maven.compiler.target>8</maven.compiler.target>
 <!--  Use the release flag only if you are using Java 9+  -->
 <!--  <maven.compiler.release>8</maven.compiler.release>  -->
       <!-- verbose is useful for debugging purposes -->
       <maven.compiler.verbose>true</maven.compiler.verbose> 
</properties>

As stated in the official page:

https://maven.apache.org/plugins/maven-compiler-plugin/examples/set-compiler-source-and-target.html

Upvotes: 4

izy
izy

Reputation: 1253

open terminal to check that Maven using correct version of Java

run: mvn -v

If you will see an old Java version, that might be the problem.

Being on Linux, I suggest removing Maven, e.g. using Fedora package manager dnf remove maven or check your PATH for maven.

Download one from here: https://maven.apache.org/download.cgi

Extract downloaded to your home path, e.g. ~/maven.

Add/Edit ~/maven/bin to your PATH

Reapply .bash_profile (or re-login)

Run mvn -v

Now you should see a correct Java version in the output

Upvotes: 18

gorjanz
gorjanz

Reputation: 2014

This configuration worked for me, for java 11. (IntelliJ version 2019.1) java.version is 11, declared in the properties part of the pom.xml. Maven version should be 3.6 or higher.

<plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.8.0</version>
            <configuration>
                <fork>false</fork>
                <source>${java.version}</source>
                <target>${java.version}</target>
                <encoding>UTF-8</encoding>
                <compilerArgs>
                    <arg>-parameters</arg>
                </compilerArgs>
                <release>${java.version}</release>
                <forceJavacCompilerUse>true</forceJavacCompilerUse>
            </configuration>
            <executions>
                <!-- Replacing default-compile as it is treated specially by maven -->
                <execution>
                    <id>default-compile</id>
                    <phase>none</phase>
                </execution>
                <!-- Replacing default-testCompile as it is treated specially by maven -->
                <execution>
                    <id>default-testCompile</id>
                    <phase>none</phase>
                </execution>
                <execution>
                    <id>java-compile</id>
                    <phase>compile</phase>
                    <goals>
                        <goal>compile</goal>
                    </goals>
                </execution>
                <execution>
                    <id>java-test-compile</id>
                    <phase>test-compile</phase>
                    <goals>
                        <goal>testCompile</goal>
                    </goals>
                </execution>
            </executions>
    </plugin>

Upvotes: -5

Krishna Vedula
Krishna Vedula

Reputation: 1791

This has to do with the version of JDK running on your system. As per the documentation for maven-compiler-plugin, the release flag is supported since 1.9, and thus has to be commented/removed from the POM if you are using prior (1.8 and below) versions of JDK.

Check Maven documentation for release tag for maven-compiler-plugin here

Upvotes: 51

Matteo Baldi
Matteo Baldi

Reputation: 5828

In your pom.xml file, simply remove the tag <release>8</release> from your maven-compiler-plugin configuration:

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-compiler-plugin</artifactId>
    <version>3.7.0</version>
    <configuration>
        <source>1.8</source>
        <target>1.8</target>
        <verbose>true</verbose>
    </configuration>
</plugin>

Upvotes: 125

Related Questions