Question

我为Apache Storm拓扑创建了一个包含所有依赖项的胖jar。我使用mvn clean dependency:copy-dependencies package命令来创建这个jar。当我将此jar提交给Storm时，会出现以下错误：

Caused by: java.lang.ClassNotFoundException: com.sun.tools.corba.se.idl.InvalidArgument
        at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:358)

我想知道如何解决此错误？哪个jar文件包含这个类？

编辑：添加pom.xml

的依赖项部分

<dependencies>
        <dependency>
            <groupId>com.ads.iot</groupId>
            <artifactId>commons-for-iot</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>
        <dependency>
            <groupId>org.apache.storm</groupId>
            <artifactId>storm-kafka</artifactId>
            <version>0.10.0-beta1</version>
        </dependency>
        <dependency>
            <groupId>org.apache.storm</groupId>
            <artifactId>storm-hbase</artifactId>
            <version>0.10.0-beta1</version>
        </dependency>
        <dependency>
            <groupId>org.apache.storm</groupId>
            <artifactId>storm-core</artifactId>
            <version>0.10.0-beta1</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>jdk.tools</groupId>
            <artifactId>jdk.tools</artifactId>
            <version>1.7.0_21</version>
            <scope>system</scope>
            <systemPath>${JAVA_HOME}/lib/tools.jar</systemPath>
        </dependency>
</dependencies>

编辑2：pom.xml的插件部分

<plugins>
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>exec-maven-plugin</artifactId>
                <version>1.4.0</version>
                <executions>
                    <execution>
                        <goals>
                            <goal>exec</goal>
                        </goals>
                    </execution>
                </executions>
                <configuration>
                    <executable>java</executable>
                    <includeProjectDependencies>true</includeProjectDependencies>
                    <includePluginDependencies>false</includePluginDependencies>
                    <classpathScope>compile</classpathScope>
                    <mainClass>${main.class}</mainClass>
                </configuration>
            </plugin>
            <plugin>
                <artifactId>maven-assembly-plugin</artifactId>
                <configuration>
                    <descriptorRefs>
                        <descriptorRef>jar-with-dependencies</descriptorRef>
                    </descriptorRefs>
                    <archive>
                        <manifest>
                            <mainClass>com.ats.ift.KafkaStormTopologyBuilder</mainClass>
                        </manifest>
                    </archive>
                </configuration>
                <executions>
                    <execution>
                        <id>make-assembly</id>
                        <phase>package</phase>
                        <goals>
                            <goal>single</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>

Answer 1

您要部署到哪个版本的Java？浏览您的依赖项，我在JDK1.7的com/sun/tools/corba/se/idl/InvalidArgument.class中找到tools.jar。但是在JDK1.8中没有这样的库。事实上，1.8的一个变化是从com.sun包中删除旧的非公共API。

我担心这里需要升级您的代码（到当前的公共API）。

Answer 2

您需要在pom.xml

中添加类似内容

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-dependency-plugin</artifactId>
    <version>2.9</version><!--$NO-MVN-MAN-VER$-->
    <executions>
        <execution>
            <id>unpack</id>
            <phase>prepare-package</phase>
            <goals>
                <goal>unpack</goal>
            </goals>
            <configuration>
                <artifactItems>
                    <artifactItem>
                        <groupId>jdk.tools</groupId>
                        <artifactId>jdk.tools</artifactId>
                        <version>1.7.0_21</version>
                        <type>jar</type>
                        <overWrite>false</overWrite>
                        <outputDirectory>${project.build.directory}/classes</outputDirectory>
                        <includes>**</includes>
                    </artifactItem>
                </artifactItems>
            </configuration>
        </execution>
    </executions>
</plugin>

它将依赖jar复制并提取到target/classes，这是文件夹maven-jar-plugin期望它必须打包的所有类。这应该适用于mvn clean package。

<强>更新

在您的情况下，需要先将tools.jar安装到maven资源库中（https://maven.apache.org/guides/mini/guide-3rd-party-jars-local.html），因为maven-dependency-plugin会在那里查找jar文件。

java.lang.NoClassDefFoundError：com / sun / tools / corba / se / idl / InvalidArgument

2 个答案: