Fatal error compiling: invalid target release: 1.7

Question

I searched for other solutions on Stackoverflow but I am still having issues. I am trying to run with 1.7 but Maven is using 1.6. I am a bit out of ideas as of right now. Does anyone have any other suggestions?

pom.xml:

  <plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-surefire-plugin</artifactId>
    <version>2.18.1</version>
  </plugin>
  <plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-compiler-plugin</artifactId>
    <version>3.1</version>
    <configuration>
      <source>1.7</source>
      <target>1.7</target>
    </configuration>
  </plugin>
  <plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-shade-plugin</artifactId>
    <version>2.2</version>
    <executions>
      <execution>
        <phase>package</phase>
        <goals>
          <goal>shade</goal>
        </goals>
        <configuration>
          <createDependencyReducedPom>false</createDependencyReducedPom>
          <artifactSet>
            <excludes>
              <exclude>org.hamcrest:*</exclude>
              <exclude>org.mockito:*</exclude>
              <exclude>org.objenesis:*</exclude>
            </excludes>
          </artifactSet>
          <filters>
            <filter>
              <artifact>*:*</artifact>
              <excludes>
                <exclude>META-INF/LICENSE</exclude>
                <exclude>META-INF/license</exclude>
                <exclude>META-INF/*.SF</exclude>
                <exclude>META-INF/*.DSA</exclude>
                <exclude>META-INF/*.RSA</exclude>
              </excludes>
            </filter>
          </filters>
          <transformers>
            <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
              <manifestEntries>
                <Main-Class>com.mycompany.app.App</Main-Class>
                <Build-Number>1</Build-Number>
              </manifestEntries>
            </transformer>
          </transformers>
        </configuration>
      </execution>
    </executions>
  </plugin>
</plugins>

When I try to mvn clean package or mvn clean install I get:

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project my-appy: Fatal error compiling: invalid target release: 1.7 -> [Help 1]

With mvn -version the output is:

mvn -version

Apache Maven 3.2.3 (33f8c3e1027c3ddde99d3cdebad2656a31e8fdf4; 2014-08-11T13:58:10-07:00)
Maven home: /usr/local/Cellar/maven/3.2.3/libexec
Java version: 1.6.0_65, vendor: Apple Inc.
Java home: /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home
Default locale: en_US, platform encoding: MacRoman
OS name: "mac os x", version: "10.10.2", arch: "x86_64", family: "mac"

This is what others have suggested

echo $JAVA_HOME

/Library/Java/JavaVirtualMachines/jdk1.7.0_55.jdk/Contents/Home

Intellij -> preferences -> Compiler -> Java Compiler

enter image description here

$java -version
java version "1.7.0_55"
Java(TM) SE Runtime Environment (build 1.7.0_55-b13)
Java HotSpot(TM) 64-Bit Server VM (build 24.55-b03, mixed mode)

You have 1.7 target defined either in pom file or in the project settings of idea. Apparently you can't use that with 1.6 JDK. Change the target bytecode to 1.6 — NeplatnyUdaj, Mar 28 '15 at 00:56
Possible duplicate: http://stackoverflow.com/questions/18813828/why-maven-use-jdk-1-6-but-my-java-version-is-1-7 — NeplatnyUdaj, Mar 28 '15 at 01:04
@NeplatnyUdaj After you suggestion, I am getting: `Error: JAVA_HOME is not defined correctly. We cannot execute /Library/Java/JavaVirtualMachines/jdk1.7.0_40.jdk/Contents/Home/bin/java` — Liondancer, Mar 28 '15 at 01:10

testinfected · Answer 1 · 2015-03-28T01:03:41.280

2

Apparently the Java used by your Maven is a Java 6, so it won't compile with a target 1.7.

You've set the JAVA_HOME apparently, but you need to make sure you're using the right java version, try java -version and make sure it's 1.7+

I've solved my multiple java versions headaches on OS X by using jEnv a tool to managed multiple java environments. You should give it a try and it's installable via Homebrew.

edited Mar 28 '15 at 01:03

answered Mar 28 '15 at 01:00

testinfected

306
1
4

Give jEnv a try. You might want to activate the export plugin, which will automatically update your JAVA_HOME whenever you switch java runtimes – testinfected Mar 28 '15 at 01:05

Fatal error compiling: invalid target release: 1.7

1 Answers1