eclipse - 即使 Hamcrest 是依赖项，Mockito bundle 也找不到 org.hamcrest 包

Question

我正在开发一个 Eclipse 4 RCP 项目，其中包含一个插件包和一个用于单元测试的包片段。目标平台是使用 Eclipse 目标定义(.target 文件)来定义的。 Maven 与 Tycho 用于在 Eclipse 之外构建项目( list 优先，使用定义目标平台的 .target 文件)。

现在我想将 Mockito 包含在目标平台中进行模拟。 Eclipse Orbit 提供了 org.mockito (1.9.5) bundle 。它取决于 org.hamcrest(也可以在 Orbit p2 站点上找到)，因此我也将其添加到目标定义中。当我从目标文件设置 Eclipse 的目标平台时，目标平台状态 View 中将显示以下内容:

尽管 org.hamcrest.library 和 org.hamcrest.core 都存在(两个包都导出 org.hamcrest 1.3.0 包)，org.mockito 包声称缺少 org.hamcrest 包。

尽管如此，我还是将 org.mockito 和 org.hamcrest.library 添加到了 MANIFEST.MF 中测试插件片段的依赖项中。

Require-Bundle: org.junit;bundle-version="4.11.0",
 org.hamcrest.library;bundle-version="1.3.0",
 org.mockito;bundle-version="1.9.5"

该片段似乎可以编译，但测试无法运行。 tycho-surefire-plugin 报告:

An error has occurred. See the log file [...]\target\work\configuration\1405514016520.log.

日志文件内容如下:

!SESSION 2014-07-16 14:33:34.053 -----------------------------------------------
eclipse.buildId=unknown
java.version=1.7.0_55
java.vendor=Oracle Corporation
BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=de_DE
Framework arguments:  -application org.eclipse.tycho.surefire.osgibooter.headlesstest -testproperties F:\Users\Jakob\Documents\Bachelorprojekt\Code\myplugin.tests\target\surefire.properties
Command-line arguments:  -data F:\Users\Jakob\Documents\Bachelorprojekt\Code\myplugin.tests\target\work\data -application org.eclipse.tycho.surefire.osgibooter.headlesstest -testproperties F:\Users\Jakob\Documents\Bachelorprojekt\Code\myplugin.tests\target\surefire.properties

!ENTRY org.eclipse.osgi 2 0 2014-07-16 14:33:40.508
!MESSAGE One or more bundles are not resolved because the following root constraints are not resolved:
!SUBENTRY 1 org.eclipse.osgi 2 0 2014-07-16 14:33:40.508
!MESSAGE Bundle initial@reference:file:../../../../../../.m2/repository/p2/osgi/bundle/org.eclipse.swt.gtk.linux.x86_64/3.102.1.v20130827-2048/org.eclipse.swt.gtk.linux.x86_64-3.102.1.v20130827-2048.jar was not resolved.
!SUBENTRY 2 org.eclipse.swt.gtk.linux.x86_64 2 0 2014-07-16 14:33:40.508
!MESSAGE Missing required capability Require-Capability: osgi.ee; filter="(|(&(osgi.ee=CDC/Foundation)(version=1.0))(&(osgi.ee=JavaSE)(version=1.3)))".
!SUBENTRY 1 org.eclipse.osgi 2 0 2014-07-16 14:33:40.508
!MESSAGE Bundle initial@reference:file:../../../../../../.m2/repository/p2/osgi/bundle/org.eclipse.swt.cocoa.macosx.x86_64/3.102.1.v20130827-2048/org.eclipse.swt.cocoa.macosx.x86_64-3.102.1.v20130827-2048.jar was not resolved.
!SUBENTRY 2 org.eclipse.swt.cocoa.macosx.x86_64 2 0 2014-07-16 14:33:40.508
!MESSAGE Missing required capability Require-Capability: osgi.ee; filter="(|(&(osgi.ee=CDC/Foundation)(version=1.0))(&(osgi.ee=JavaSE)(version=1.3)))".
!SUBENTRY 1 org.eclipse.osgi 2 0 2014-07-16 14:33:40.508
!MESSAGE Bundle initial@reference:file:../../../../../../.m2/repository/p2/osgi/bundle/org.mockito/1.9.5.v201311280930/org.mockito-1.9.5.v201311280930.jar was not resolved.
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.509
!MESSAGE Missing imported package org.hamcrest_[1.0.0,2.0.0).

!ENTRY org.eclipse.osgi 2 0 2014-07-16 14:33:40.547
!MESSAGE The following is a complete list of bundles which are not resolved, see the prior log entry for the root cause if it exists:
!SUBENTRY 1 org.eclipse.osgi 2 0 2014-07-16 14:33:40.547
!MESSAGE Bundle myplugin.tests_0.0.1.qualifier [2] was not resolved.
!SUBENTRY 2 myplugin.tests 2 0 2014-07-16 14:33:40.547
!MESSAGE Missing required bundle org.mockito_1.9.5.
!SUBENTRY 1 org.eclipse.osgi 2 0 2014-07-16 14:33:40.547
!MESSAGE Bundle org.mockito_1.9.5.v201311280930 [5] was not resolved.
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.547
!MESSAGE Missing optionally imported package COM.jrockit.reflect_0.0.0.
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.547
!MESSAGE Missing optionally imported package jrockit.vm_0.0.0.
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.547
!MESSAGE Missing imported package org.hamcrest_[1.0.0,2.0.0).
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.547
!MESSAGE Missing imported package org.mockito_[1.9.0,2.0.0).
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.547
!MESSAGE Missing imported package org.mockito.configuration_[1.9.0,2.0.0).
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.547
!MESSAGE Missing imported package org.mockito.exceptions_[1.9.0,2.0.0).
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.547
!MESSAGE Missing imported package org.mockito.exceptions.base_[1.9.0,2.0.0).
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.547
!MESSAGE Missing imported package org.mockito.exceptions.misusing_[1.9.0,2.0.0).
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.547
!MESSAGE Missing imported package org.mockito.exceptions.stacktrace_[1.9.0,2.0.0).
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.547
!MESSAGE Missing imported package org.mockito.exceptions.verification_[1.9.0,2.0.0).
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.548
!MESSAGE Missing imported package org.mockito.exceptions.verification.junit_[1.9.0,2.0.0).
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.548
!MESSAGE Missing imported package org.mockito.invocation_[1.9.0,2.0.0).
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.548
!MESSAGE Missing imported package org.mockito.listeners_[1.9.0,2.0.0).
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.548
!MESSAGE Missing imported package org.mockito.mock_[1.9.0,2.0.0).
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.548
!MESSAGE Missing imported package org.mockito.plugins_[1.9.0,2.0.0).
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.548
!MESSAGE Missing imported package org.mockito.runners_[1.9.0,2.0.0).
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.548
!MESSAGE Missing imported package org.mockito.stubbing_[1.9.0,2.0.0).
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.548
!MESSAGE Missing imported package org.mockito.stubbing.answers_[1.9.0,2.0.0).
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.548
!MESSAGE Missing imported package org.mockito.verification_[1.9.0,2.0.0).
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.548
!MESSAGE Missing optionally imported package sun.reflect_0.0.0.
!SUBENTRY 1 org.eclipse.osgi 2 0 2014-07-16 14:33:40.548
!MESSAGE Bundle org.eclipse.swt.gtk.linux.x86_64_3.102.1.v20130827-2048 [147] was not resolved.
!SUBENTRY 2 org.eclipse.swt.gtk.linux.x86_64 2 0 2014-07-16 14:33:40.548
!MESSAGE Missing required capability Require-Capability: osgi.ee; filter="(|(&(osgi.ee=CDC/Foundation)(version=1.0))(&(osgi.ee=JavaSE)(version=1.3)))".
!SUBENTRY 1 org.eclipse.osgi 2 0 2014-07-16 14:33:40.548
!MESSAGE Bundle org.eclipse.swt.cocoa.macosx.x86_64_3.102.1.v20130827-2048 [148] was not resolved.
!SUBENTRY 2 org.eclipse.swt.cocoa.macosx.x86_64 2 0 2014-07-16 14:33:40.548
!MESSAGE Missing required capability Require-Capability: osgi.ee; filter="(|(&(osgi.ee=CDC/Foundation)(version=1.0))(&(osgi.ee=JavaSE)(version=1.3)))".

!ENTRY org.eclipse.osgi 2 0 2014-07-16 14:33:40.804
!MESSAGE One or more bundles are not resolved because the following root constraints are not resolved:
!SUBENTRY 1 org.eclipse.osgi 2 0 2014-07-16 14:33:40.804
!MESSAGE Bundle initial@reference:file:../../../../../../.m2/repository/p2/osgi/bundle/org.eclipse.swt.gtk.linux.x86_64/3.102.1.v20130827-2048/org.eclipse.swt.gtk.linux.x86_64-3.102.1.v20130827-2048.jar was not resolved.
!SUBENTRY 2 org.eclipse.swt.gtk.linux.x86_64 2 0 2014-07-16 14:33:40.804
!MESSAGE Missing required capability Require-Capability: osgi.ee; filter="(|(&(osgi.ee=CDC/Foundation)(version=1.0))(&(osgi.ee=JavaSE)(version=1.3)))".
!SUBENTRY 1 org.eclipse.osgi 2 0 2014-07-16 14:33:40.804
!MESSAGE Bundle initial@reference:file:../../../../../../.m2/repository/p2/osgi/bundle/org.eclipse.swt.cocoa.macosx.x86_64/3.102.1.v20130827-2048/org.eclipse.swt.cocoa.macosx.x86_64-3.102.1.v20130827-2048.jar was not resolved.
!SUBENTRY 2 org.eclipse.swt.cocoa.macosx.x86_64 2 0 2014-07-16 14:33:40.804
!MESSAGE Missing required capability Require-Capability: osgi.ee; filter="(|(&(osgi.ee=CDC/Foundation)(version=1.0))(&(osgi.ee=JavaSE)(version=1.3)))".
!SUBENTRY 1 org.eclipse.osgi 2 0 2014-07-16 14:33:40.804
!MESSAGE Bundle initial@reference:file:../../../../../../.m2/repository/p2/osgi/bundle/org.mockito/1.9.5.v201311280930/org.mockito-1.9.5.v201311280930.jar was not resolved.
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.804
!MESSAGE Missing imported package org.hamcrest_[1.0.0,2.0.0).

!ENTRY org.eclipse.osgi 2 0 2014-07-16 14:33:40.833
!MESSAGE The following is a complete list of bundles which are not resolved, see the prior log entry for the root cause if it exists:
!SUBENTRY 1 org.eclipse.osgi 2 0 2014-07-16 14:33:40.833
!MESSAGE Bundle myplugin.tests_0.0.1.qualifier [2] was not resolved.
!SUBENTRY 2 myplugin.tests 2 0 2014-07-16 14:33:40.833
!MESSAGE Missing required bundle org.mockito_1.9.5.
!SUBENTRY 1 org.eclipse.osgi 2 0 2014-07-16 14:33:40.833
!MESSAGE Bundle org.mockito_1.9.5.v201311280930 [5] was not resolved.
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.833
!MESSAGE Missing optionally imported package COM.jrockit.reflect_0.0.0.
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.833
!MESSAGE Missing optionally imported package jrockit.vm_0.0.0.
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.833
!MESSAGE Missing imported package org.hamcrest_[1.0.0,2.0.0).
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.834
!MESSAGE Missing imported package org.mockito_[1.9.0,2.0.0).
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.834
!MESSAGE Missing imported package org.mockito.configuration_[1.9.0,2.0.0).
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.834
!MESSAGE Missing imported package org.mockito.exceptions_[1.9.0,2.0.0).
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.834
!MESSAGE Missing imported package org.mockito.exceptions.base_[1.9.0,2.0.0).
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.834
!MESSAGE Missing imported package org.mockito.exceptions.misusing_[1.9.0,2.0.0).
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.834
!MESSAGE Missing imported package org.mockito.exceptions.stacktrace_[1.9.0,2.0.0).
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.834
!MESSAGE Missing imported package org.mockito.exceptions.verification_[1.9.0,2.0.0).
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.834
!MESSAGE Missing imported package org.mockito.exceptions.verification.junit_[1.9.0,2.0.0).
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.834
!MESSAGE Missing imported package org.mockito.invocation_[1.9.0,2.0.0).
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.834
!MESSAGE Missing imported package org.mockito.listeners_[1.9.0,2.0.0).
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.835
!MESSAGE Missing imported package org.mockito.mock_[1.9.0,2.0.0).
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.835
!MESSAGE Missing imported package org.mockito.plugins_[1.9.0,2.0.0).
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.835
!MESSAGE Missing imported package org.mockito.runners_[1.9.0,2.0.0).
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.835
!MESSAGE Missing imported package org.mockito.stubbing_[1.9.0,2.0.0).
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.835
!MESSAGE Missing imported package org.mockito.stubbing.answers_[1.9.0,2.0.0).
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.835
!MESSAGE Missing imported package org.mockito.verification_[1.9.0,2.0.0).
!SUBENTRY 2 org.mockito 2 0 2014-07-16 14:33:40.835
!MESSAGE Missing optionally imported package sun.reflect_0.0.0.
!SUBENTRY 1 org.eclipse.osgi 2 0 2014-07-16 14:33:40.835
!MESSAGE Bundle org.eclipse.swt.gtk.linux.x86_64_3.102.1.v20130827-2048 [147] was not resolved.
!SUBENTRY 2 org.eclipse.swt.gtk.linux.x86_64 2 0 2014-07-16 14:33:40.835
!MESSAGE Missing required capability Require-Capability: osgi.ee; filter="(|(&(osgi.ee=CDC/Foundation)(version=1.0))(&(osgi.ee=JavaSE)(version=1.3)))".
!SUBENTRY 1 org.eclipse.osgi 2 0 2014-07-16 14:33:40.835
!MESSAGE Bundle org.eclipse.swt.cocoa.macosx.x86_64_3.102.1.v20130827-2048 [148] was not resolved.
!SUBENTRY 2 org.eclipse.swt.cocoa.macosx.x86_64 2 0 2014-07-16 14:33:40.835
!MESSAGE Missing required capability Require-Capability: osgi.ee; filter="(|(&(osgi.ee=CDC/Foundation)(version=1.0))(&(osgi.ee=JavaSE)(version=1.3)))".

!ENTRY org.eclipse.osgi 4 0 2014-07-16 14:33:40.857
!MESSAGE Application error
!STACK 1
java.lang.RuntimeException: Bundle myplugin.tests is not found
    at org.eclipse.tycho.surefire.osgibooter.OsgiSurefireBooter.getBundleClassLoader(OsgiSurefireBooter.java:149)
    at org.eclipse.tycho.surefire.osgibooter.OsgiSurefireBooter.run(OsgiSurefireBooter.java:67)
    at org.eclipse.tycho.surefire.osgibooter.HeadlessTestApplication.run(HeadlessTestApplication.java:21)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.eclipse.equinox.internal.app.EclipseAppContainer.callMethodWithException(EclipseAppContainer.java:587)
    at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:198)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:354)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:181)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:636)
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:591)
    at org.eclipse.equinox.launcher.Main.run(Main.java:1450)
    at org.eclipse.equinox.launcher.Main.main(Main.java:1426)

从 Eclipse PDE 启动插件测试实际上会产生相同的与 mockito 相关的错误(缺少 SWT 相关的错误，但存在其他包解析错误，因为我通常不从 Eclipse 运行这些测试，并且没有消除一些冲突)来自启动配置的 bundle )。

即使该包肯定是由另一个所需的包从目标平台导出的，但丢失导入包错误的可能原因是什么？如何修复此设置？

Answer 1

我最近在 Tycho 构建和从 PDE 启动运行时 Eclipse 时遇到了同样的问题:

!ENTRY org.mockito 4 0 2018-03-14 11:53:00.671
!MESSAGE FrameworkEvent ERROR
!STACK 0
org.osgi.framework.BundleException: Could not resolve module: org.mockito [6]
  Unresolved requirement: Import-Package: COM.jrockit.reflect; resolution:="optional"
  Unresolved requirement: Import-Package: jrockit.vm; resolution:="optional"
  Unresolved requirement: Import-Package: org.apache.tools.ant; resolution:="optional"
  Unresolved requirement: Import-Package: org.apache.tools.ant.types; resolution:="optional"
  Unresolved requirement: Import-Package: org.hamcrest; version="[1.0.0,2.0.0)"

我能够在这两种情况下解决这个问题，而无需重新打包 Mockito。

• 在 PDE 中，将 org.hamcrest 显式添加到目标平台，而不仅仅是 org.hamcrest.core:

对应的.target代码:

<location includeAllPlatforms="false" includeConfigurePhase="true" includeMode="planner" includeSource="true" type="InstallableUnit">
<unit id="org.hamcrest" version="1.1.0.v20090501071000"/>
<unit id="org.mockito" version="1.9.5.v201605172210"/>
<repository location="http://download.eclipse.org/tools/orbit/downloads/drops/R20180206163158/repository/"/>
</location>

• 在第谷中做同样的事情:

  <plugin>
      <groupId>org.eclipse.tycho</groupId>
      <artifactId>target-platform-configuration</artifactId>
      <version>${tycho-version}</version>
      <configuration>
          <dependency-resolution>
              <extraRequirements>
                  <!--  Workaround for an issue with mockito depending on hamcrest -->
                  <requirement>
                      <type>eclipse-plugin</type>
                      <id>org.hamcrest</id>
                      <versionRange>0.0.0</versionRange>
                  </requirement>
              </extraRequirements>
          </dependency-resolution>
      </configuration>
  </plugin>