NoClassDefFoundError:org / w3c / dom / ls / DocumentLS-仅在将其固定为编译时间后才在部署上发生的问题

问题描述 投票:1回答:1

背景

我有一个项目,我在其中解析一些XML文档,而我碰巧需要xerces依赖项:

<dependency>
    <groupId>xerces</groupId>
    <artifactId>xerces</artifactId>
    <version>2.4.0</version>
</dependency>

[使用junit4编写单元测试时,每次运行单元测试时都会遇到问题,以下是每次我使用mvn clean install进行编译时都会发生的问题:

[ERROR] Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 0.346 s <<< FAILURE! - in ConversionTest
[ERROR] ConversionTest.initializationError  Time elapsed: 0.054 s  <<< ERROR!
java.lang.NoClassDefFoundError: org/w3c/dom/ls/DocumentLS
        at ConversionTest.fromDirectory(ConversionTest.java:92)
        at ConversionTest.data(ConversionTest.java:65)
Caused by: java.lang.ClassNotFoundException: org.w3c.dom.ls.DocumentLS
        at ConversionTest.fromDirectory(ConversionTest.java:92)
        at ConversionTest.data(ConversionTest.java:65)

编译时解决方案

搜索网络,我意识到我需要在pom.xml中添加新的依赖项:

<dependency>
    <groupId>xerces</groupId>
    <artifactId>xercesImpl</artifactId>
    <version>2.11.0</version>
</dependency>

完成此操作后,测试编译正常,我可以生成.jar,并与以下构建插件打包在一起:

        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-jar-plugin</artifactId>
            <version>2.4</version>
            <configuration>
                <archive>
                    <manifest>
                        <addClasspath>true</addClasspath>
                        <classpathPrefix>lib/</classpathPrefix>
                        <mainClass>com.company.tools.Application</mainClass>
                    </manifest>
                </archive>
            </configuration>
        </plugin> 

...并使用以下设置进行编译:

        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>${maven.compiler.plugin.version}</version>
            <configuration>
                <encoding>cp1252</encoding>
                <release>11</release>
                <fork>true</fork>
                <meminitial>128m</meminitial>
                <maxmem>512m</maxmem>
                <compilerArgs>
                    <arg>-Xpkginfo:always</arg>
                </compilerArgs>
            </configuration>
        </plugin>

这产生了一个.jar,其中包含所有必需的依赖项,这里包括著名的org/w3c/dom/ls/DocumentLS

enter image description here

部署

现在我将此.jar移动到我的服务器中,并尝试使用以下命令运行它:

java -jar myJar.jar <inputs>

[这样做时,我再次得到以下异常!

Exception in thread "main" java.lang.NoClassDefFoundError: org/w3c/dom/ls/DocumentLS
        at java.base/java.lang.ClassLoader.defineClass1(Native Method)
        at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1016)
        at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:174)
        at java.base/jdk.internal.loader.BuiltinClassLoader.defineClass(BuiltinClassLoader.java:801)
        at java.base/jdk.internal.loader.BuiltinClassLoader.findClassOnClassPathOrNull(BuiltinClassLoader.java:699)
        at java.base/jdk.internal.loader.BuiltinClassLoader.loadClassOrNull(BuiltinClassLoader.java:622)
        at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:580)
        at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
        at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
        at org.apache.xerces.jaxp.DocumentBuilderImpl.<init>(Unknown Source)
        at org.apache.xerces.jaxp.DocumentBuilderFactoryImpl.newDocumentBuilder(Unknown Source)
        at com.company.tools.impl.FileProviderImpl.getXmlFile(FileProviderImpl.java:68)
        at com.company.tools.impl.FileProviderImpl.<init>(FileProviderImpl.java:38)
        at com.company.tools.impl.FileProviderImpl$Builder.build(FileProviderImpl.java:91)
        at com.company.tools.Application.main(Application.java:50)
Caused by: java.lang.ClassNotFoundException: org.w3c.dom.ls.DocumentLS
        at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:582)
        at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
        at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
        ... 15 more

我的问题和有关机器的一些详细信息

我在这里有点迷路。我已经将依赖项添加到了pom.xml中,该类在.jar中包装得很好,但是仍然存在相同的问题。我究竟做错了什么?

如果有帮助:

我的机器

Java version: 11.0.2-BellSoft, vendor: BellSoft, runtime: C:\jdk-11.0.2
Default locale: fr_FR, platform encoding: Cp1252
OS name: "windows 10", version: "10.0", arch: "amd64", family: "windows"

我的服务器

openjdk version "11" 2018-09-25
OpenJDK Runtime Environment 18.9 (build 11+28)
OpenJDK 64-Bit Server VM 18.9 (build 11+28, mixed mode)
OS: Linux myServerAddress 3.10.0-327.el7.x86_64 #1 SMP Thu Oct 29 17:29:29 EDT 2015 x86_64 x86_64 x86_64 GNU/Linux

提前感谢!

java maven java-11 xerces
1个回答
0
投票

由于@Sambit对this GitHub issue的第二条评论,我最终找到了解决方案。在这里发布答案,希望可以节省别人的头痛!

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