Gradle编译Java任务一直失败。

3
“好的,我已经苦思冥想了相当长一段时间,现在我甚至不知道该搜索什么来找到解决方案,这是我的文件。”
“build.gradle”
    //Applying the Gradle BND Plugin for Workspace Builds
    //https://github.com/bndtools/bnd/blob/master/biz.aQute.bnd.gradle/README.md
buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath "biz.aQute.bnd:biz.aQute.bnd.gradle:${bnd_version}"
    }
}

apply plugin: 'biz.aQute.bnd.workspace'
apply plugin: 'java'

    // Repositorios, aguante Maven Central.
repositories {
    mavenCentral()

    /* Excluded, uso la dependecia de otro lado ahora.
    flatDir {
        dirs '/home/feddericokz/devTools/Equinox/Equinox-Oxygen-1a/plugins'
    }
    */
}

    // Dependencias
dependencies {
    // https://mvnrepository.com/artifact/org.osgi/org.osgi.core
    compile group: 'org.osgi', name: 'org.osgi.core', version: '6.0.0'
}

settings.gradle

/*
 * This settings file was generated by the Gradle 'init' task.
 *
 * The settings file is used to specify which projects to include in your build.
 * In a single project build this file can be empty or even removed.
 *
 * Detailed information about configuring a multi-project build in Gradle can be found
 * in the user guide at https://docs.gradle.org/4.3.1/userguide/multi_project_builds.html
 */

/*
// To declare projects as part of a multi-project build use the 'include' method
include 'shared'
include 'api'
include 'services:webservice'
*/

rootProject.name = 'bndWorkspace'

include 'com.feddericokz.helloworld'

尝试从命令行运行 gradle jar 时,我遇到了一个错误,编译器无法找到 osgi 依赖项来编译类。
Task :com.feddericokz.helloworld:compileJava FAILED
/home/feddericokz/testingDir/bndWorkspace/com.feddericokz.helloworld/src/com/feddericokz/helloworld/HelloWorldActivator.java:3: error: package org.osgi.framework does not exist
import org.osgi.framework.BundleActivator;
                         ^
/home/feddericokz/testingDir/bndWorkspace/com.feddericokz.helloworld/src/com/feddericokz/helloworld/HelloWorldActivator.java:4: error: package org.osgi.framework does not exist
import org.osgi.framework.BundleContext;
                         ^
/home/feddericokz/testingDir/bndWorkspace/com.feddericokz.helloworld/src/com/feddericokz/helloworld/HelloWorldActivator.java:6: error: cannot find symbol
public class HelloWorldActivator implements BundleActivator {
                                            ^
  symbol: class BundleActivator
/home/feddericokz/testingDir/bndWorkspace/com.feddericokz.helloworld/src/com/feddericokz/helloworld/HelloWorldActivator.java:8: error: cannot find symbol
    public void start(BundleContext bundleContext) throws Exception {
                      ^
  symbol:   class BundleContext
  location: class HelloWorldActivator
/home/feddericokz/testingDir/bndWorkspace/com.feddericokz.helloworld/src/com/feddericokz/helloworld/HelloWorldActivator.java:13: error: cannot find symbol
    public void stop(BundleContext bundleContext) throws Exception {
                     ^
  symbol:   class BundleContext
  location: class HelloWorldActivator
/home/feddericokz/testingDir/bndWorkspace/com.feddericokz.helloworld/src/com/feddericokz/helloworld/HelloWorldActivator.java:7: error: method does not override or implement a method from a supertype
    @Override
    ^
/home/feddericokz/testingDir/bndWorkspace/com.feddericokz.helloworld/src/com/feddericokz/helloworld/HelloWorldActivator.java:12: error: method does not override or implement a method from a supertype
    @Override
    ^
7 errors


FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':com.feddericokz.helloworld:compileJava'.
> Compilation failed; see the compiler error output for details.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

* Get more help at https://help.gradle.org

BUILD FAILED in 0s
2 actionable tasks: 1 executed, 1 up-to-date

我做错了什么?编辑:有个打字错误。
2个回答

2
如果您正在使用Bnd工作区模型构建,则必须通过每个项目的bnd.bnd文件使用-buildpath Bnd指令配置构建路径。然后,Bnd Gradle插件将使用该信息来编程Java编译的配置。
您的示例显示为根Gradle项目设置编译依赖项,这是错误的,因为(1)应该在项目的bnd.bnd文件中使用-buildpath,(2)它是在根项目中完成的,无意义于任何子项目,例如您的com.feddericokz.helloworld项目。
所以,请修改您的 build.gradle 文件,不要将“java”插件应用于根项目,也不要为根项目设置编译依赖项,并更改您的 Bnd 工作区,使工作区(cnf)配置了访问所需 bundle 的存储库,例如 https://github.com/osgi/enroute.workspace/blob/4070ff6668a1ee79b9b01cfa4caab86869247e7b/cnf/ext/enroute.bnd#L22-L28,然后将每个项目的 bnd.bnd 文件设置为在-buildpath 上拥有所需的 bundles。

这对我来说非常棘手,因为我依赖的捆绑包已经在“-testpath”中了。所以它可以在Eclipse单元测试中运行,但在Gradle构建中需要在“-buildpath”上才能运行。 - Noumenon

0
这行代码中是否定义了还不清楚。
classpath "biz.aQute.bnd:biz.aQute.bnd.gradle:${bnd_version}"

考虑添加一个包含以下内容的gradle.properties文件:
bnd_version=3.5.0

(或者任何适当的版本)。尽我所能重现您的情况,我的示例在这种情况下对我有效。


我按照你说的定义了它,很抱歉我忘记在问题中添加它,但还是不起作用。:( - Federico von Wernich

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