scala-maven-plugin excludes

Hello, every one.

I have a problem to add excludes to scala-maven-plugin. There are two scala files:Spark_1.6.1.scala and Spark_2.0.1.scala in src/main/scala/test. I want to exclude Spark_1.6.1.scala when compilation, so I write a pom.xml with the following setups. But it doesn't work.

May I do something incorrectly? How to add excludes correctly ?

在pom.xml文件中，引入scala-maven-plugin，将一部分文件排除编译工作：

scala-maven-plugin不支持完全模式匹配，仅支持/test/scala/和 /main/scala下的模式匹配。故而，在配置文件中需要配置成按包名路径的模式。

Sorry, it was my fault. I didn't realize that /test/ cannot be a part of exclude pattern; patterns only are applied to path inside /test/scala/ or /main/scala. 

<excludes>
    <exclude>**/com/excludes_package/**</exclude>
    <exclude>**/com/excludes_package/excludes_package_1/**</exclude>
    <exclude>**/com/excludes_package/excludes_package_2/**</exclude>
</excludes>

此外incremental模式下貌似不支持excludes，需要注释掉。Java的compiler中也需要加入exclude，否则在build中Java build阶段会报错。

<!-- mixed Java/Scala projects, see https://davidb.github.io/scala-maven-plugin/example_java.html -->
<plugin>
    <!-- see http://davidb.github.com/scala-maven-plugin -->
    <groupId>net.alchim31.maven</groupId>
    <artifactId>scala-maven-plugin</artifactId>
    <version>3.2.2</version>
    <executions>
        <execution>
            <id>eclipse-add-source</id>
            <goals>
                <goal>add-source</goal>
            </goals>
        </execution>
        <execution>
            <id>scala-compile-first</id>
            <phase>process-resources</phase>
            <goals>
                <goal>compile</goal>
            </goals>
        </execution>
        <execution>
            <id>scala-test-compile-first</id>
            <phase>process-test-resources</phase>
            <goals>
                <goal>testCompile</goal>
            </goals>
        </execution>
        <execution>
            <id>attach-scaladocs</id>
            <phase>verify</phase>
            <goals>
                <goal>doc-jar</goal>
            </goals>
        </execution>
    </executions>
    <configuration>
        <scalaVersion>${scala.version}</scalaVersion>
        <!-- <recompileMode>incremental</recompileMode> <!-- here -->
        <useZincServer>true</useZincServer> -->
        <args>
            <arg>-unchecked</arg>
            <arg>-deprecation</arg>
            <arg>-feature</arg>
            <arg>-language:postfixOps</arg>
        </args>
        <jvmArgs>
            <jvmArg>-Xms1024m</jvmArg>
            <jvmArg>-Xmx1024m</jvmArg>
            <jvmArg>-XX:ReservedCodeCacheSize=${CodeCacheSize}</jvmArg>
        </jvmArgs>
        <javacArgs>
            <javacArg>-source</javacArg>
            <javacArg>${java.version}</javacArg>
            <javacArg>-target</javacArg>
            <javacArg>${java.version}</javacArg>
            <javacArg>-Xlint:all,-serial,-path</javacArg>
        </javacArgs>
        <excludes> <!-- here -->
            <exclude>**/com/excludes_package/**</exclude>
            <exclude>**/com/excludes_package/excludes_package_1/**</exclude>
            <exclude>**/com/excludes_package/excludes_package_2/**</exclude>
        </excludes>
    </configuration>
</plugin>
<!-- This plugin compiles Java files -->
<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-compiler-plugin</artifactId>
    <version>3.6.1</version>
    <configuration>
        <source>${java.version}</source>
        <target>${java.version}</target>
        <encoding>UTF-8</encoding>
        <maxmem>1024m</maxmem>
        <fork>true</fork>
        <compilerArgs>
            <arg>-Xlint:all,-serial,-path</arg>
        </compilerArgs>
        <excludes> <!-- here -->
            <exclude>**/com/excludes_package/**</exclude>
            <exclude>**/com/excludes_package/excludes_package_1/**</exclude>
            <exclude>**/com/excludes_package/excludes_package_2/**</exclude>
        </excludes>
    </configuration>
    <executions>
        <execution>
            <phase>compile</phase>
            <goals>
                <goal>compile</goal>
            </goals>
        </execution>
    </executions>
</plugin>

经验证：incremental模式下支持excludes，不需要注释掉。

<recompileMode>incremental</recompileMode>