我试图在我们的一个项目中使用delombok，因为SonarQube在代码质量检查中给出了错误的肯定结果。以下是我的Maven构建条目，但出现以下错误。我想念什么？
我正在使用Spring STS，JDK 8和Spring Boot。
<build>
<sourceDirectory>${project.build.directory}/generated-sources/delombok</sourceDirectory>
<testSourceDirectory>target/generated-test-sources/delombok</testSourceDirectory>
<plugins>
<plugin>
<groupId>org.projectlombok</groupId>
<artifactId>lombok-maven-plugin</artifactId>
<version>${delombok-maven-plugin.version}</version>
<executions>
<execution>
<id>delombok</id>
<phase>generate-sources</phase>
<goals>
<goal>delombok</goal>
</goals>
<configuration>
<addOutputDirectory>false</addOutputDirectory>
<sourceDirectory>src/main/java</sourceDirectory>
</configuration>
</execution>
</executions>
<configuration>
<addOutputDirectory>false</addOutputDirectory>
<sourceDirectory>src/main/java</sourceDirectory>
</configuration>
</plugin>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
错误
Execution delombok of goal org.projectlombok:lombok-maven-plugin:1.18.4.0:delombok failed: A required class was missing while executing org.projectlombok:lombok-maven-plugin:1.18.4.0:delombok: com/sun/tools/javac/tree/JCTree$JCCompilationUnit
-----------------------------------------------------
realm = plugin>org.projectlombok:lombok-maven-plugin:1.18.4.0
strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
urls[0] = file:/C:/Users/demouser/.m2/repository/org/projectlombok/lombok-maven-plugin/1.18.4.0/lombok-maven-plugin-1.18.4.0.jar
urls[1] = file:/C:/Users/demouser/.m2/repository/org/apache/commons/commons-lang3/3.8.1/commons-lang3-3.8.1.jar
urls[2] = file:/C:/Users/demouser/.m2/repository/org/projectlombok/lombok/1.18.4/lombok-1.18.4.jar
urls[3] = file:/C:/Users/demouser/.m2/repository/org/codehaus/plexus/plexus-utils/1.5.8/plexus-utils-1.5.8.jar
Number of foreign imports: 5
import: Entry[import org.sonatype.plexus.build.incremental from realm ClassRealm[plexus.core, parent: null]]
import: Entry[import org.codehaus.plexus.util.Scanner from realm ClassRealm[plexus.core, parent: null]]
import: Entry[import org.codehaus.plexus.util.DirectoryScanner from realm ClassRealm[plexus.core, parent: null]]
import: Entry[import org.codehaus.plexus.util.AbstractScanner from realm ClassRealm[plexus.core, parent: null]]
import: Entry[import from realm ClassRealm[maven.api, parent: null]]
-----------------------------------------------------
(org.projectlombok:lombok-maven-plugin:1.18.4.0:delombok:delombok:generate-sources)
org.apache.maven.plugin.PluginExecutionException: Execution delombok of goal org.projectlombok:lombok-maven-plugin:1.18.4.0:delombok failed: A required class was missing while executing org.projectlombok:lombok-maven-plugin:1.18.4.0:delombok: com/sun/tools/javac/tree/JCTree$JCCompilationUnit
-----------------------------------------------------
realm = plugin>org.projectlombok:lombok-maven-plugin:1.18.4.0
strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
urls[0] = file:/C:/Users/demouser/.m2/repository/org/projectlombok/lombok-maven-plugin/1.18.4.0/lombok-maven-plugin-1.18.4.0.jar
urls[1] = file:/C:/Users/demouser/.m2/repository/org/apache/commons/commons-lang3/3.8.1/commons-lang3-3.8.1.jar
urls[2] = file:/C:/Users/demouser/.m2/repository/org/projectlombok/lombok/1.18.4/lombok-1.18.4.jar
urls[3] = file:/C:/Users/demouser/.m2/repository/org/codehaus/plexus/plexus-utils/1.5.8/plexus-utils-1.5.8.jar
Number of foreign imports: 5
import: Entry[import org.sonatype.plexus.build.incremental from realm ClassRealm[plexus.core, parent: null]]
import: Entry[import org.codehaus.plexus.util.Scanner from realm ClassRealm[plexus.core, parent: null]]
import: Entry[import org.codehaus.plexus.util.DirectoryScanner from realm ClassRealm[plexus.core, parent: null]]
import: Entry[import org.codehaus.plexus.util.AbstractScanner from realm ClassRealm[plexus.core, parent: null]]
import: Entry[import from realm ClassRealm[maven.api, parent: null]]
-----------------------------------------------------
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:168)
at org.eclipse.m2e.core.internal.embedder.MavenImpl.execute(MavenImpl.java:331)
at org.eclipse.m2e.core.internal.embedder.MavenImpl$11.call(MavenImpl.java:1362)
at org.eclipse.m2e.core.internal.embedder.MavenImpl$11.call(MavenImpl.java:1)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.executeBare(MavenExecutionContext.java:177)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:112)
at org.eclipse.m2e.core.internal.embedder.MavenImpl.execute(MavenImpl.java:1360)
at org.eclipse.m2e.core.project.configurator.MojoExecutionBuildParticipant.build(MojoExecutionBuildParticipant.java:52)
at org.eclipse.m2e.core.internal.builder.MavenBuilderImpl.build(MavenBuilderImpl.java:137)
at org.eclipse.m2e.core.internal.builder.MavenBuilder$1.method(MavenBuilder.java:172)
at org.eclipse.m2e.core.internal.builder.MavenBuilder$1.method(MavenBuilder.java:1)
at org.eclipse.m2e.core.internal.builder.MavenBuilder$BuildMethod$1$1.call(MavenBuilder.java:115)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.executeBare(MavenExecutionContext.java:177)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:112)
at org.eclipse.m2e.core.internal.builder.MavenBuilder$BuildMethod$1.call(MavenBuilder.java:105)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.executeBare(MavenExecutionContext.java:177)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:151)
at org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:99)
at org.eclipse.m2e.core.internal.builder.MavenBuilder$BuildMethod.execute(MavenBuilder.java:86)
at org.eclipse.m2e.core.internal.builder.MavenBuilder.build(MavenBuilder.java:200)
at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:735)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:206)
at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:246)
at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:301)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:304)
at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:360)
at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:383)
at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:142)
at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:232)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:56)
Caused by: org.apache.maven.plugin.PluginContainerException: A required class was missing while executing org.projectlombok:lombok-maven-plugin:1.18.4.0:delombok: com/sun/tools/javac/tree/JCTree$JCCompilationUnit
-----------------------------------------------------
realm = plugin>org.projectlombok:lombok-maven-plugin:1.18.4.0
strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
urls[0] = file:/C:/Users/demouser/.m2/repository/org/projectlombok/lombok-maven-plugin/1.18.4.0/lombok-maven-plugin-1.18.4.0.jar
urls[1] = file:/C:/Users/demouser/.m2/repository/org/apache/commons/commons-lang3/3.8.1/commons-lang3-3.8.1.jar
urls[2] = file:/C:/Users/demouser/.m2/repository/org/projectlombok/lombok/1.18.4/lombok-1.18.4.jar
urls[3] = file:/C:/Users/demouser/.m2/repository/org/codehaus/plexus/plexus-utils/1.5.8/plexus-utils-1.5.8.jar
Number of foreign imports: 5
import: Entry[import org.sonatype.plexus.build.incremental from realm ClassRealm[plexus.core, parent: null]]
import: Entry[import org.codehaus.plexus.util.Scanner from realm ClassRealm[plexus.core, parent: null]]
import: Entry[import org.codehaus.plexus.util.DirectoryScanner from realm ClassRealm[plexus.core, parent: null]]
import: Entry[import org.codehaus.plexus.util.AbstractScanner from realm ClassRealm[plexus.core, parent: null]]
import: Entry[import from realm ClassRealm[maven.api, parent: null]]
-----------------------------------------------------
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:166)
... 31 more
Caused by: java.lang.NoClassDefFoundError: com/sun/tools/javac/tree/JCTree$JCCompilationUnit
at lombok.delombok.Delombok.getModuleField(Delombok.java:642)
at lombok.delombok.Delombok.<clinit>(Delombok.java:639)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at lombok.launch.Delombok.<init>(Delombok.java:32)
at lombok.maven.AbstractDelombokMojo.execute(AbstractDelombokMojo.java:139)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
... 31 more
Caused by: java.lang.ClassNotFoundException: com.sun.tools.javac.tree.JCTree$JCCompilationUnit
at java.lang.ClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at lombok.launch.ShadowClassLoader.loadClass(ShadowClassLoader.java:530)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 41 more