Maven编译（java8兼容性java6）

Question

I have problem with my maven build because recently we have changed our java.

I launch maven build with java8 and I want my code to compile with java6. So for this I added this to my pom:

<plugins>
    <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.1</version>
        <configuration>
            <source>1.6</source>
            <target>1.6</target>
            <optimize>true</optimize>
            <compilerVersion>1.6</compilerVersion>   
            <compilerId>eclipse</compilerId>
            <executable>${JAVA_1_6_HOME}/bin/javac</executable>
            <verbose>true</verbose>
            <fork>true</fork>
            <debug>true</debug>
        </configuration>
        <dependencies>
            <dependency>
                <groupId>org.codehaus.plexus</groupId>
                <artifactId>plexus-compiler-eclipse</artifactId>
                <version>2.1</version>
            </dependency>
            <dependency>
                <groupId>org.codehaus.plexus</groupId>
                <artifactId>plexus-compiler-api</artifactId>
                <version>2.1</version>
            </dependency>
        </dependencies>
    </plugin>

But when I launch maven build I have this error which only exists in java8 (Duplicate methods named spliterator with the parameters () and () are inherited from the types List<T> and Collection<T> ).

Do you have any idea why my code seems to be compile with java8?

(part of logs)

(f) compilerId = eclipse
[DEBUG]   (f) compilerVersion = 1.6
[DEBUG]   (f) debug = true
[DEBUG]   (f) encoding = UTF-8
[DEBUG]   (f) executable = C:\Program Files\Java60\java\bin\javac
[DEBUG]   (f) failOnError = true
[DEBUG]   (f) forceJavacCompilerUse = false
[DEBUG]   (f) fork = true

Answer 1

I think you should use compiler from java 8. Now you hardcoded ${JAVA_1_6_HOME}/bin/javac . Use something like: ${JAVA_1_8_HOME}/bin/javac