小贝子编程

扩展'War'任务的自定义 gradle 任务看不到某些必需的类



我已经尝试迁移到Gradle有一段时间了。我必须做的一件事是在WAR文件中根据通常要添加的条目自动创建其他条目。出于性能和其他原因，我尝试用与之前相同的方式在War任务的自定义子类中自动执行此操作。由于我必须围绕私有可见性和final字段工作，这并不像我想要的那样好，但它在开始之前就失败了。当我从org.apache.tools.zip包中添加对类的引用时，构建在运行时失败，并显示以下堆栈跟踪:

17:44:32.888 [ERROR] [org.gradle.BuildExceptionReporter] FAILURE: Build failed with an exception.
17:44:32.900 [ERROR] [org.gradle.BuildExceptionReporter]
17:44:32.907 [ERROR] [org.gradle.BuildExceptionReporter] * Where:
17:44:32.914 [ERROR] [org.gradle.BuildExceptionReporter] Build file '...build.gradle' line: 92
17:44:32.921 [ERROR] [org.gradle.BuildExceptionReporter]
17:44:32.928 [ERROR] [org.gradle.BuildExceptionReporter] * What went wrong:
17:44:32.935 [ERROR] [org.gradle.BuildExceptionReporter] A problem occurred evaluating root project '...'.
17:44:32.942 [ERROR] [org.gradle.BuildExceptionReporter] > Could not generate a proxy class for class ....ProblemWarTask.
17:44:32.953 [ERROR] [org.gradle.BuildExceptionReporter]
17:44:32.960 [ERROR] [org.gradle.BuildExceptionReporter] * Exception is:
17:44:32.969 [ERROR] [org.gradle.BuildExceptionReporter] org.gradle.api.GradleScriptException: A problem occurred evaluating root project '...'.
17:44:32.976 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.groovy.scripts.internal.DefaultScriptRunnerFactory$ScriptRunnerImpl.run(DefaultScriptRunnerFactory.java:54)
17:44:32.983 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.configuration.DefaultScriptPluginFactory$ScriptPluginImpl.apply(DefaultScriptPluginFactory.java:127)
17:44:32.991 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.configuration.BuildScriptProcessor.evaluate(BuildScriptProcessor.java:38)
17:44:32.998 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.configuration.LifecycleProjectEvaluator.evaluate(LifecycleProjectEvaluator.java:44)
17:44:33.005 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.internal.project.AbstractProject.evaluate(AbstractProject.java:464)
17:44:33.013 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.internal.project.AbstractProject.evaluate(AbstractProject.java:77)
17:44:33.020 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.configuration.DefaultBuildConfigurer$ConfigureProject.execute(DefaultBuildConfigurer.java:38)
17:44:33.027 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.configuration.DefaultBuildConfigurer$ConfigureProject.execute(DefaultBuildConfigurer.java:36)
17:44:33.034 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.internal.project.AbstractProject.configure(AbstractProject.java:440)
17:44:33.041 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.internal.project.AbstractProject.allprojects(AbstractProject.java:435)
17:44:33.048 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.configuration.DefaultBuildConfigurer.configure(DefaultBuildConfigurer.java:32)
17:44:33.055 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:142)
17:44:33.062 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.initialization.DefaultGradleLauncher.doBuild(DefaultGradleLauncher.java:113)
17:44:33.069 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.initialization.DefaultGradleLauncher.run(DefaultGradleLauncher.java:81)
17:44:33.077 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.launcher.cli.ExecuteBuildAction.run(ExecuteBuildAction.java:38)
17:44:33.086 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.launcher.exec.InProcessGradleLauncherActionExecuter.execute(InProcessGradleLauncherActionExecuter.java:39)
17:44:33.095 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.launcher.exec.InProcessGradleLauncherActionExecuter.execute(InProcessGradleLauncherActionExecuter.java:25)
17:44:33.103 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.launcher.cli.RunBuildAction.run(RunBuildAction.java:50)
17:44:33.112 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.internal.Actions$RunnableActionAdapter.execute(Actions.java:171)
17:44:33.121 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.launcher.cli.CommandLineActionFactory$ParseAndBuildAction.execute(CommandLineActionFactory.java:201)
17:44:33.130 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.launcher.cli.CommandLineActionFactory$ParseAndBuildAction.execute(CommandLineActionFactory.java:174)
17:44:33.139 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.launcher.cli.CommandLineActionFactory$WithLogging.execute(CommandLineActionFactory.java:170)
17:44:33.148 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.launcher.cli.CommandLineActionFactory$WithLogging.execute(CommandLineActionFactory.java:139)
17:44:33.157 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.launcher.cli.ExceptionReportingAction.execute(ExceptionReportingAction.java:33)
17:44:33.166 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.launcher.cli.ExceptionReportingAction.execute(ExceptionReportingAction.java:22)
17:44:33.175 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.launcher.Main.doAction(Main.java:48)
17:44:33.182 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.launcher.bootstrap.EntryPoint.run(EntryPoint.java:45)
17:44:33.190 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.launcher.Main.main(Main.java:39)
17:44:33.197 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.launcher.bootstrap.ProcessBootstrap.runNoExit(ProcessBootstrap.java:50)
17:44:33.206 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.launcher.bootstrap.ProcessBootstrap.run(ProcessBootstrap.java:32)
17:44:33.216 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.launcher.GradleMain.main(GradleMain.java:26)
17:44:33.227 [ERROR] [org.gradle.BuildExceptionReporter] Caused by: org.gradle.api.GradleException: Could not generate a proxy class for class ....ProblemWarTask.
17:44:33.238 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.internal.AbstractClassGenerator.generate(AbstractClassGenerator.java:201)
17:44:33.249 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.internal.project.taskfactory.TaskFactory.createTaskObject(TaskFactory.java:105)
17:44:33.258 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.internal.project.taskfactory.TaskFactory.createTask(TaskFactory.java:70)
17:44:33.266 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory.createTask(AnnotationProcessingTaskFactory.java:93)
17:44:33.276 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.internal.project.taskfactory.DependencyAutoWireTaskFactory.createTask(DependencyAutoWireTaskFactory.java:39)
17:44:33.285 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.internal.tasks.DefaultTaskContainer.add(DefaultTaskContainer.java:56)
17:44:33.294 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.internal.project.AbstractProject.task(AbstractProject.java:921)
17:44:33.301 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.internal.BeanDynamicObject$MetaClassAdapter.invokeMethod(BeanDynamicObject.java:216)
17:44:33.311 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.internal.BeanDynamicObject.invokeMethod(BeanDynamicObject.java:122)
17:44:33.319 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.internal.CompositeDynamicObject.invokeMethod(CompositeDynamicObject.java:147)
17:44:33.328 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.groovy.scripts.BasicScript.methodMissing(BasicScript.java:83)
17:44:33.335 [ERROR] [org.gradle.BuildExceptionReporter]        at build_77lv568h8hqtuhsa63froq7bcr.run(...build.gradle:92)
17:44:33.343 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.groovy.scripts.internal.DefaultScriptRunnerFactory$ScriptRunnerImpl.run(DefaultScriptRunnerFactory.java:52)
17:44:33.352 [ERROR] [org.gradle.BuildExceptionReporter]        ... 30 more
17:44:33.362 [ERROR] [org.gradle.BuildExceptionReporter] Caused by: java.lang.NoClassDefFoundError: Lorg/apache/tools/zip/ZipOutputStream;
17:44:33.370 [ERROR] [org.gradle.BuildExceptionReporter]        at org.gradle.api.internal.AbstractClassGenerator.generate(AbstractClassGenerator.java:100)
17:44:33.379 [ERROR] [org.gradle.BuildExceptionReporter]        ... 42 more
17:44:33.387 [ERROR] [org.gradle.BuildExceptionReporter] Caused by: java.lang.ClassNotFoundException: org.apache.tools.zip.ZipOutputStream
17:44:33.395 [ERROR] [org.gradle.BuildExceptionReporter]        ... 43 more
17:44:33.403 [ERROR] [org.gradle.BuildExceptionReporter]
17:44:33.411 [LIFECYCLE] [org.gradle.BuildResultLogger]
17:44:33.419 [LIFECYCLE] [org.gradle.BuildResultLogger] BUILD FAILED

这仍然主要是关于Gradle的学习。我现在最大的问题实际上是不明白为什么会发生这种情况，以及我通常遗漏了什么(例如，如果/当我写其他任务时)。为什么这通过编译阶段很好(buildSrc.jar创建得很好)，但在运行时失败?

这是稍微模糊的源代码(你会看到它主要是Gradle自己的代码的副本-即Zip任务):

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.lang.reflect.Constructor;
import org.apache.tools.zip.UnixStat;
import org.apache.tools.zip.ZipEntry;
import org.apache.tools.zip.ZipOutputStream;
import org.gradle.api.file.FileVisitDetails;
import org.gradle.api.GradleException;
import org.gradle.api.internal.file.archive.ZipCopyAction;
import org.gradle.api.internal.file.archive.ZipCopySpecVisitor;
import org.gradle.api.internal.file.copy.CopyAction;
import org.gradle.api.internal.file.copy.CopyActionImpl;
import org.gradle.api.internal.file.copy.CopySpecImpl;
import org.gradle.api.internal.file.copy.CopySpecVisitor;
import org.gradle.api.internal.file.copy.MappingCopySpecVisitor;
import org.gradle.api.internal.file.copy.NormalizingCopySpecVisitor;
import org.gradle.api.internal.file.copy.ReadableCopySpec;
import org.gradle.api.internal.file.copy.ZipCompressor;
import org.gradle.api.internal.file.copy.ZipDeflatedCompressor;
import org.gradle.api.internal.file.FileResolver;
import org.gradle.api.tasks.bundling.War;
import org.gradle.api.tasks.bundling.Zip;
import org.gradle.api.UncheckedIOException;
import org.gradle.internal.nativeplatform.filesystem.FileSystems;
class ProblemWarTask extends War {
  private ZipCopyActionImpl copyAction = null;
  public ProblemWarTask() {}
  protected synchronized Zip.ZipCopyActionImpl getCopyAction() {
    if (copyAction == null) {
      copyAction = new ProblemWarCopyActionImpl(getServices().get(FileResolver.class));
    }
    return copyAction;
  }
  protected class ProblemWarCopyActionImpl extends Zip.ZipCopyActionImpl {
    private final CopySpecVisitor visitor;
    public ProblemWarCopyActionImpl(FileResolver fileResolver) {
      super((FileResolver) fileResolver);
      visitor = new MappingCopySpecVisitor(new NormalizingCopySpecVisitor(new ProblemWarCopySpecVisitor()), FileSystems.getDefault());
    }
    public void execute() {
      visitor.startVisit(this);
      for (ReadableCopySpec spec : getRootSpec().getAllSpecs()) {
        visitor.visitSpec(spec);
        spec.getSource().visit(visitor);
      }
     visitor.endVisit();
    }
    public boolean getDidWork() {
        return visitor.getDidWork();
    }
  }
  protected class ProblemWarCopySpecVisitor extends ZipCopySpecVisitor {
    private ZipOutputStream zipOutStr;
    private File zipFile;
    public void startVisit(CopyAction action) {
      ZipCopyAction archiveAction = (ZipCopyAction) action;
      zipFile = archiveAction.getArchivePath();
      try {
        zipOutStr = archiveAction.getCompressor().createArchiveOutputStream(zipFile);
      } catch (Exception e) {
        throw new GradleException(String.format("Could not create ZIP '%s'.", zipFile), e);
      }
    }
    public void endVisit() {
      try {
        zipOutStr.close();
      } catch (IOException e) {
        throw new UncheckedIOException(e);
      } finally {
        zipOutStr = null;
      }
    }
    public void visitFile(FileVisitDetails fileDetails) {
      try {
        ZipEntry archiveEntry = new ZipEntry(fileDetails.getRelativePath().getPathString());
        archiveEntry.setTime(fileDetails.getLastModified());
        archiveEntry.setUnixMode(UnixStat.FILE_FLAG | fileDetails.getMode());
        zipOutStr.putNextEntry(archiveEntry);
        fileDetails.copyTo(zipOutStr);
        zipOutStr.closeEntry();
      } catch (Exception e) {
        throw new GradleException(String.format("Could not add %s to ZIP '%s'.", fileDetails, zipFile), e);
      }
      // Now do a little more - add stuff
      try {
        if (...) { 
          byte[] buffer;
          ...
          ZipEntry archiveEntry = new ZipEntry(secondPath);
          archiveEntry.setTime(fileDetails.getLastModified());
          archiveEntry.setUnixMode(UnixStat.FILE_FLAG | fileDetails.getMode());
          zipOutStr.putNextEntry(archiveEntry);
          zipOutStr.write(buffer, 0, buffer.length);
          zipOutStr.closeEntry();
        }
      } catch (Exception e) {
        throw new GradleException(String.format("Could not add secondary form of %s to ZIP '%s'.", fileDetails, zipFile), e);
      }
    }
    public void visitDir(FileVisitDetails dirDetails) {
      try {
        // Trailing slash in name indicates that entry is a directory
        ZipEntry archiveEntry = new ZipEntry(dirDetails.getRelativePath().getPathString() + '/');
        archiveEntry.setTime(dirDetails.getLastModified());
        archiveEntry.setUnixMode(UnixStat.DIR_FLAG | dirDetails.getMode());
        zipOutStr.putNextEntry(archiveEntry);
        zipOutStr.closeEntry();
      } catch (Exception e) {
        throw new GradleException(String.format("Could not add %s to ZIP '%s'.", dirDetails, zipFile), e);
      }
    }
  }
}

目前构建脚本本身没有做任何特别的事情:

task war(type: ....ProblemWarTask) {
  ...
}

主体与我用于"战争"任务的相同，甚至与这个任务的初始实验(ProblemWarTask)相同。当我添加对包的引用时，异常开始发生。让我困扰的是，当一个"战争"任务最终具有与这个任务相同的运行时依赖集时，它怎么能运行得很好呢?

这是Gradle 1.5。我还尝试在构建中添加以下内容。Gradle but did not help(同样错误):

buildscript {
  dependencies {
    classpath files(".../gradle/lib/ant-1.8.4.jar")
  }
}

Edit -在Gradle 1.6中尝试过，没有变化。也在Gradle论坛上发布过:

http://forums.gradle.org/gradle/topics/custom_gradle_task_extending_the_war_task_does_not_see_some_required_classes?rfm=1

Edit 2 -可在以下位置找到独立的示例文件:

http://wikisend.com/download/241430/sample.zip

像War这样的任务类型不是被设计为由用户子类化的。与子类化和使用大量内部组件相比，编写一个使用公共API预配置任务的插件(在最简单的情况下，它只是使用apply from: "path/to/script.gradle"的另一个构建脚本)通常更好(也更容易)。例如:

tasks.withType(War) {
    eachFile { FileCopyDetails details -> ... }
}

如果绝对必要，这样的配置也可以进入子类的构造函数。

也就是说，我不确定为什么在使用Ant类时会遇到类装入器问题。如果您可以在http://forums.gradle.org上提交一个带有自包含可重复示例的问题，我们将查看一下。

相关内容

最新更新


热门标签：

javascript python java c# php android html jquery c++ css ios sql mysql arrays asp.net json python-3.x ruby-on-rails .net sql-server django objective-c excel regex ruby linux ajax iphone xml vba spring asp.net-mvc database wordpress string postgresql wpf windows xcode bash git oracle list vb.net multithreading eclipse algorithm macos powershell visual-studio image forms numpy scala function api selenium