我们正在使用 XML 语言 Sonar 插件，并成功添加了一些自定义 XPath 规则，但是当我们激活模式检查规则时，我们得到一个 ClassNotFoundException：
org.sonar.api.utils.SonarException: java.lang.ClassNotFoundException: org.apache.xerces.dom.DOMImplementationSourceImpl
最初，我们使用 Sonar 版本 5.1.1 和 Ubuntu 14.04 上安装的 XML 语言插件版本 1.3，使用 Oracle Java 版本“1.8.0_45”——我们实际上尝试了各种 1.7 和 1.8 Java。我们尝试先使用 Sonar runner v2.4 运行分析，然后使用 Sonar ant task v2.3 运行分析，都给出了相同的错误。
我们发现已经提出了一个 JIRA：SONARXML-3，但它已被关闭为“无法修复”，因为它无法在 SonarQube 4.5.4 上复制。
我们将 Sonar 4.5.4 和 1.3 版本的 XML 语言插件安装到 Windows 机器上，并使用了一个非常简单的测试用例。
安装后我们做了以下操作：
- 基于“XML 模式应该是有效的”规则创建了一个自定义规则
- 将架构保留为默认的“自动检测”并将 filePattern 设置为“**/*.html”
- 在 XML 插件的文件后缀设置中添加了“html”
- 在“Sonar Way”配置文件中激活自定义规则
当我们在单个 html 文件上运行 sonar runner 时，我们仍然遇到同样的错误。
我查看了 XML 插件 jar，它在其 META-INF/lib 中包含 xercesImpl-2.8.1.jar，其中包含它抱怨找不到的类。
我不确定下一步该尝试什么。我们在配置 Sonar 服务器或 Sonar runner 时是否遗漏了一步？
编辑添加简单的项目信息：
用于分析的单个文件 Basic.html：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Title of document</title>
</head>
<body>
some content
</body>
</html>
声纳-project.properties：
sonar.projectKey=simple:schema-test
sonar.projectName=Schema Check Test
sonar.projectVersion=1.0
sonar.sources=.
声纳运行器的输出：
SonarQube Runner 2.4
Java 1.8.0_45 Oracle Corporation (64-bit)
Linux 3.13.0-57-generic amd64
INFO: Runner configuration file: /home/mike/SonarDev/sonar-runner-2.4/conf/sonar-runner.properties
INFO: Project configuration file: /home/mike/SonarDev/SimpleSchema/sonar-project.properties
INFO: Default locale: "en_GB", source code encoding: "UTF-8"
INFO: Work directory: /home/mike/SonarDev/SimpleSchema/./.sonar
INFO: SonarQube Server 4.5.4
13:08:39.283 INFO - Load global referentials...
13:08:39.765 INFO - Load global referentials done: 488 ms
13:08:39.805 INFO - User cache: /home/mike/.sonar/cache
13:08:39.837 INFO - Install plugins
13:08:39.864 INFO - Download sonar-core-plugin-4.5.4.jar
13:08:39.933 INFO - Download sonar-email-notifications-plugin-4.5.4.jar
13:08:39.979 INFO - Download sonar-findbugs-plugin-2.4.jar
13:08:40.258 INFO - Download sonar-java-plugin-2.4.jar
13:08:40.328 INFO - Download sonar-xml-plugin-1.3.jar
13:08:40.512 INFO - Download sonar-cpd-plugin-4.5.4.jar
13:08:40.528 INFO - Download sonar-design-plugin-4.5.4.jar
13:08:40.553 INFO - Download sonar-dbcleaner-plugin-4.5.4.jar
13:08:40.577 INFO - Download sonar-l10n-en-plugin-4.5.4.jar
13:08:40.683 INFO - Install JDBC driver
13:08:40.713 INFO - Download mysql-connector-java-5.1.27.jar
13:08:40.761 INFO - Create JDBC datasource for jdbc:mysql://localhost:3306/sonar4?useUnicode=true&characterEncoding=utf8
13:08:44.377 INFO - Initializing Hibernate
13:08:47.843 INFO - Load project referentials...
13:08:48.430 INFO - Load project referentials done: 587 ms
13:08:48.438 INFO - Load project settings
13:08:49.256 INFO - Loading technical debt model...
13:08:49.348 INFO - Loading technical debt model done: 92 ms
13:08:49.372 INFO - Apply project exclusions
13:08:49.988 INFO - ------------- Scan Schema Check Test
13:08:50.018 INFO - Load module settings
13:08:51.201 INFO - Loading rules...
13:08:51.930 INFO - Loading rules done: 725 ms
13:08:52.035 INFO - Configure Maven plugins
13:08:52.447 INFO - Compare to previous analysis (2015-07-22)
13:08:52.475 INFO - Compare over 30 days (2015-06-22, analysis of 2015-07-22 12:56:55.0)
13:08:52.480 INFO - No quality gate is configured.
13:08:53.015 INFO - Base dir: /home/mike/SonarDev/SimpleSchema/.
13:08:53.022 INFO - Working dir: /home/mike/SonarDev/SimpleSchema/./.sonar
13:08:53.024 INFO - Source paths: .
13:08:53.024 INFO - Source encoding: UTF-8, default locale: en_GB
13:08:53.024 INFO - Index files
13:08:53.224 INFO - 1 files indexed
13:08:53.370 INFO - Quality profile for xml: Sonar way
13:08:53.422 INFO - Sensor QProfileSensor...
13:08:53.464 INFO - Sensor QProfileSensor done: 42 ms
13:08:53.466 INFO - Sensor InitialOpenIssuesSensor...
13:08:53.504 INFO - Sensor InitialOpenIssuesSensor done: 38 ms
13:08:53.510 INFO - Sensor ProjectLinksSensor...
13:08:53.533 INFO - Sensor ProjectLinksSensor done: 23 ms
13:08:53.539 INFO - Sensor VersionEventsSensor...
13:08:53.592 INFO - Sensor VersionEventsSensor done: 53 ms
13:08:53.593 INFO - Sensor FileHashSensor...
13:08:53.608 INFO - Sensor FileHashSensor done: 15 ms
13:08:53.608 INFO - Sensor XmlSensor...
13:08:54.071 ERROR - Could not analyze the file /home/mike/SonarDev/SimpleSchema/Basic.html
org.sonar.api.utils.SonarException: java.lang.ClassNotFoundException: org.apache.xerces.dom.DOMImplementationSourceImpl
at org.sonar.plugins.xml.schemas.SchemaResolver.createLSInput(SchemaResolver.java:122) ~[na:na]
at org.sonar.plugins.xml.schemas.SchemaResolver.resolveResource(SchemaResolver.java:269) ~[na:na]
at com.sun.org.apache.xerces.internal.util.DOMEntityResolverWrapper.resolveEntity(DOMEntityResolverWrapper.java:117) ~[na:1.8.0_45]
at com.sun.org.apache.xerces.internal.impl.XMLEntityManager.resolveEntity(XMLEntityManager.java:1079) ~[na:1.8.0_45]
at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaLoader.resolveDocument(XMLSchemaLoader.java:660) ~[na:1.8.0_45]
at com.sun.org.apache.xerces.internal.impl.xs.traversers.XSDHandler.resolveSchema(XSDHandler.java:2052) ~[na:1.8.0_45]
at com.sun.org.apache.xerces.internal.impl.xs.traversers.XSDHandler.constructTrees(XSDHandler.java:1008) ~[na:1.8.0_45]
at com.sun.org.apache.xerces.internal.impl.xs.traversers.XSDHandler.parseSchema(XSDHandler.java:620) ~[na:1.8.0_45]
at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaLoader.loadSchema(XMLSchemaLoader.java:617) ~[na:1.8.0_45]
at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaLoader.loadGrammar(XMLSchemaLoader.java:575) ~[na:1.8.0_45]
at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaLoader.loadGrammar(XMLSchemaLoader.java:541) ~[na:1.8.0_45]
at com.sun.org.apache.xerces.internal.jaxp.validation.XMLSchemaFactory.newSchema(XMLSchemaFactory.java:255) ~[na:1.8.0_45]
at org.sonar.plugins.xml.checks.XmlSchemaCheck.createSchema(XmlSchemaCheck.java:146) ~[na:na]
at org.sonar.plugins.xml.checks.XmlSchemaCheck.validate(XmlSchemaCheck.java:232) ~[na:na]
at org.sonar.plugins.xml.checks.XmlSchemaCheck.autodetectSchemaAndValidate(XmlSchemaCheck.java:164) ~[na:na]
at org.sonar.plugins.xml.checks.XmlSchemaCheck.validate(XmlSchemaCheck.java:222) ~[na:na]
at org.sonar.plugins.xml.checks.XmlSchemaCheck.validate(XmlSchemaCheck.java:260) ~[na:na]
at org.sonar.plugins.xml.XmlSensor.analyse(XmlSensor.java:77) ~[na:na]
at org.sonar.batch.phases.SensorsExecutor.executeSensor(SensorsExecutor.java:79) [sonar-batch-maven-compat-4.5.4.jar:na]
at org.sonar.batch.phases.SensorsExecutor.execute(SensorsExecutor.java:70) [sonar-batch-maven-compat-4.5.4.jar:na]
at org.sonar.batch.phases.PhaseExecutor.execute(PhaseExecutor.java:119) [sonar-batch-maven-compat-4.5.4.jar:na]
at org.sonar.batch.scan.ModuleScanContainer.doAfterStart(ModuleScanContainer.java:194) [sonar-batch-maven-compat-4.5.4.jar:na]
at org.sonar.api.platform.ComponentContainer.startComponents(ComponentContainer.java:93) [sonar-batch-maven-compat-4.5.4.jar:na]
at org.sonar.api.platform.ComponentContainer.execute(ComponentContainer.java:78) [sonar-batch-maven-compat-4.5.4.jar:na]
at org.sonar.batch.scan.ProjectScanContainer.scan(ProjectScanContainer.java:233) [sonar-batch-maven-compat-4.5.4.jar:na]
at org.sonar.batch.scan.ProjectScanContainer.scanRecursively(ProjectScanContainer.java:228) [sonar-batch-maven-compat-4.5.4.jar:na]
at org.sonar.batch.scan.ProjectScanContainer.doAfterStart(ProjectScanContainer.java:221) [sonar-batch-maven-compat-4.5.4.jar:na]
at org.sonar.api.platform.ComponentContainer.startComponents(ComponentContainer.java:93) [sonar-batch-maven-compat-4.5.4.jar:na]
at org.sonar.api.platform.ComponentContainer.execute(ComponentContainer.java:78) [sonar-batch-maven-compat-4.5.4.jar:na]
at org.sonar.batch.scan.ScanTask.scan(ScanTask.java:64) [sonar-batch-maven-compat-4.5.4.jar:na]
at org.sonar.batch.scan.ScanTask.execute(ScanTask.java:51) [sonar-batch-maven-compat-4.5.4.jar:na]
at org.sonar.batch.bootstrap.TaskContainer.doAfterStart(TaskContainer.java:125) [sonar-batch-maven-compat-4.5.4.jar:na]
at org.sonar.api.platform.ComponentContainer.startComponents(ComponentContainer.java:93) [sonar-batch-maven-compat-4.5.4.jar:na]
at org.sonar.api.platform.ComponentContainer.execute(ComponentContainer.java:78) [sonar-batch-maven-compat-4.5.4.jar:na]
at org.sonar.batch.bootstrap.BootstrapContainer.executeTask(BootstrapContainer.java:173) [sonar-batch-maven-compat-4.5.4.jar:na]
at org.sonar.batch.bootstrapper.Batch.executeTask(Batch.java:95) [sonar-batch-maven-compat-4.5.4.jar:na]
at org.sonar.batch.bootstrapper.Batch.execute(Batch.java:67) [sonar-batch-maven-compat-4.5.4.jar:na]
at org.sonar.runner.batch.IsolatedLauncher.execute(IsolatedLauncher.java:48) [sonar-runner-batch2088275009626652419.jar:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_45]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_45]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_45]
at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_45]
at org.sonar.runner.impl.BatchLauncher$1.delegateExecution(BatchLauncher.java:87) [sonar-runner-dist-2.4.jar:na]
at org.sonar.runner.impl.BatchLauncher$1.run(BatchLauncher.java:75) [sonar-runner-dist-2.4.jar:na]
at java.security.AccessController.doPrivileged(Native Method) [na:1.8.0_45]
at org.sonar.runner.impl.BatchLauncher.doExecute(BatchLauncher.java:69) [sonar-runner-dist-2.4.jar:na]
at org.sonar.runner.impl.BatchLauncher.execute(BatchLauncher.java:50) [sonar-runner-dist-2.4.jar:na]
at org.sonar.runner.api.EmbeddedRunner.doExecute(EmbeddedRunner.java:102) [sonar-runner-dist-2.4.jar:na]
at org.sonar.runner.api.Runner.execute(Runner.java:100) [sonar-runner-dist-2.4.jar:na]
at org.sonar.runner.Main.executeTask(Main.java:70) [sonar-runner-dist-2.4.jar:na]
at org.sonar.runner.Main.execute(Main.java:59) [sonar-runner-dist-2.4.jar:na]
at org.sonar.runner.Main.main(Main.java:53) [sonar-runner-dist-2.4.jar:na]
Caused by: java.lang.ClassNotFoundException: org.apache.xerces.dom.DOMImplementationSourceImpl
at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[na:1.8.0_45]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_45]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_45]
at org.w3c.dom.bootstrap.DOMImplementationRegistry.newInstance(DOMImplementationRegistry.java:182) ~[na:1.8.0_45]
at org.sonar.plugins.xml.schemas.SchemaResolver.createLSInput(SchemaResolver.java:115) ~[na:na]
... 51 common frames omitted
13:08:54.077 INFO - Sensor XmlSensor done: 469 ms
13:08:54.079 INFO - Sensor LineCountSensor...
13:08:54.110 INFO - Sensor LineCountSensor done: 31 ms
13:08:54.112 INFO - Sensor CPD Sensor (wrapped)...
13:08:54.112 INFO - DefaultCpdEngine is used for xml
13:08:54.114 INFO - Cross-project analysis disabled
13:08:54.148 INFO - Sensor CPD Sensor (wrapped) done: 36 ms
13:08:54.639 INFO - Execute decorators...
13:08:55.155 INFO - Store results in database
13:08:55.494 INFO - ANALYSIS SUCCESSFUL, you can browse http://localhost:9000/dashboard/index/simple:schema-test
13:08:55.592 INFO - Executing post-job class org.sonar.plugins.core.issue.notification.SendIssueNotificationsPostJob
13:08:55.593 INFO - Executing post-job class org.sonar.plugins.core.batch.IndexProjectPostJob
13:08:55.698 INFO - Executing post-job class org.sonar.plugins.dbcleaner.ProjectPurgePostJob
13:08:55.782 INFO - -> Keep one snapshot per day between 2015-06-24 and 2015-07-21
13:08:55.793 INFO - -> Keep one snapshot per week between 2014-07-23 and 2015-06-24
13:08:55.799 INFO - -> Keep one snapshot per month between 2010-07-28 and 2014-07-23
13:08:55.809 INFO - -> Delete data prior to: 2010-07-28
13:08:55.826 INFO - -> Clean Schema Check Test [id=312]
13:08:55.860 INFO - <- Clean snapshot 695
INFO: ------------------------------------------------------------------------
INFO: EXECUTION SUCCESS
INFO: ------------------------------------------------------------------------
Total time: 18.958s
Final Memory: 12M/118M
INFO: ------------------------------------------------------------------------