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私はしばらくGradleに移行しようとしています。私がしなければならないことの 1 つは、通常追加されるエントリに基づいて、WAR ファイルに追加のエントリを自動的に作成することです。パフォーマンスやその他の理由から、戦争タスクのカスタム サブクラス内でこれを自動化することにより、以前と同じ方法でこれを実行しようとしました。プライベートな可視性と最終フィールドに対処する必要があるため、これは私が望んでいたほど良くはありませんが、開始する前に失敗します。org.apache.tools.zip パッケージからクラスへの参照を追加した瞬間、ビルドは実行時に次のスタック トレースで失敗します。

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

これはまだGradleについてほとんど学んでいます。現在の私の最大の問題は、なぜこれが起こるのか、一般的に何が欠けているのか (つまり、他のタスクを書く場合) を理解していないことです。これはコンパイル段階を問題なく通過しますが (buildSrc.jar は問題なく作成されます)、実行時に失敗するのはなぜですか?

これを少し難読化したソース コードを次に示します (ほとんどが Gradle 独自のコード、つまり Zip タスクのコピーであることがわかります)。

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);
      }
    }
  }
}

現在、ビルド スクリプト自体は特別なことを行っていません。

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

本体は、「戦争」タスクで使用したものと同じであり、このタスク (ProblemWarTask) の最初の実験でも同じです。注意したパッケージへの参照を追加すると、例外が発生し始めました。私を悩ませているのは、最終的にこれと同じランタイム依存関係のセットがある場合、「戦争」タスクがどのようにうまく実行できるかということです。

これはGradle 1.5です。また、build.gradle に以下を追加しようとしましたが、役に立ちませんでした (同じエラー):

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

編集- Gradle 1.6 で試しましたが、変更はありません。Gradle フォーラムにも投稿:

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

編集 2 - 分離されたサンプル ファイルは次の場所にあります。

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

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1 に答える 1

3

のようなタスク タイプWarは、ユーザーによってサブクラス化されるようには設計されていません。apply from: "path/to/script.gradle"サブクラス化して多くの内部を使用する代わりに、パブリック API を使用してタスクを事前構成するプラグイン (最も単純なケースでは、 を適用した別のビルド スクリプト) を作成する方が良い (そして簡単) ことがよくあります。例えば:

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

絶対に必要な場合は、そのような構成をサブクラスのコンストラクターに入れることもできます。

とはいえ、Ant クラスでクラス ローダーの問題が発生する理由がわかりません。http://forums.gradle.orgで自己完結型の再現可能な例を含む問題を送信できる場合は、見ていきます。

于 2013-05-07T07:09:37.420 に答える