用assembly打包后没有class文件

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pom.xml

<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-assembly-plugin</artifactId>
				<version>2.4.1</version>
				<configuration>
					<!-- not append assembly id in release file name -->
					<appendAssemblyId>false</appendAssemblyId>
					<descriptors>
						<descriptor>src/main/assemble/package.xml</descriptor>
					</descriptors>
				</configuration>				<executions>
					<execution>
						<id>make-assembly</id>
						<phase>package</phase>
						<goals>
							<goal>single</goal>
						</goals>
					</execution>
				</executions>
			</plugin>

package.xml

<assembly 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/assembly-1.0.0.xsd">
     <id>package</id>
     <formats>
         <format>jar</format>
     </formats>
     <includeBaseDirectory>true</includeBaseDirectory>
     <fileSets>
         <fileSet>
             <directory>src/main/java</directory>
             <outputDirectory>/</outputDirectory>
         </fileSet>
         <fileSet>
             <directory>src/main/resources</directory>
             <outputDirectory>resources</outputDirectory>
         </fileSet>
     </fileSets>
     <dependencySets>
         <dependencySet>
             <outputDirectory>lib</outputDirectory>
             <scope>runtime</scope>
         </dependencySet>
     </dependencySets>
</assembly>

可以正常打包，但是执行java -cp时报 找不到或无法加载主类 我反编译进去看了下 结构目录下我只找到了相关依赖的jar包和我自己的代码，但是这些代码都是.java，没有.class，请问下这是哪有问题 还是打包过后就这样