[英]Tycho cannot resolve fragment dependency on other fragment
I want to create an extension for org.eclipse.swt
as a fragment.我想为org.eclipse.swt
创建一个扩展作为片段。 I have created a bundle swt.extension
with the following MANIFEST.MF:我使用以下 MANIFEST.MF 创建了一个包swt.extension
:
Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-Name: Extension
Bundle-SymbolicName: swt.extension
Bundle-Version: 1.0.0.qualifier
Fragment-Host: org.eclipse.swt;bundle-version="3.102.0"
Bundle-RequiredExecutionEnvironment: JavaSE-1.7
Also, I have created an interface which extends an interface from SWT:另外,我创建了一个接口,它扩展了 SWT 的接口:
public interface IExtendedStyleTextContent extends org.eclipse.swt.custom.StyledTextContent {
}
When I build my project with tycho ( mvn clean install
) the following error occurs:当我使用 tycho ( mvn clean install
) 构建我的项目时,会发生以下错误:
1. ERROR in C:\<path>\tycho-fragment-to-fragment-dependency\swt.extension\src\org\example\tycho_example\IExtendedStyleTextContent.java (at line 3)
public interface IExtendedStyleTextContent extends org.eclipse.swt.custom.StyledTextContent {
^^^^^^^^^^^
org.eclipse cannot be resolved to a type
It seems that tycho resolves only org.eclipse.swt jar.似乎第谷只解析 org.eclipse.swt jar。 This is a host bundle and it contains no classes.这是一个主机包,它不包含任何类。 The actual implementation is in org.eclipse.swt.win32.win32.x86_64 fragment bundle.实际实现在 org.eclipse.swt.win32.win32.x86_64 片段包中。 And it looks like this bundle is not on classpath when tycho-compiler-plugin compiles the project.当 tycho-compiler-plugin 编译项目时,看起来这个包不在类路径上。
Is this a bug of Tycho?这是第谷的bug吗? Are their any workarounds?他们有什么解决方法吗?
I have put all sources on GitHub: https://github.com/orionll/tycho-fragment-to-fragment-dependency我已将所有来源放在 GitHub 上: https : //github.com/orionll/tycho-fragment-to-fragment-dependency
I use maven 3.1.0我使用 Maven 3.1.0
So, a workaround for this issue was found in mailing lists: http://dev.eclipse.org/mhonarc/lists/tycho-user/msg03277.html因此,在邮件列表中找到了解决此问题的方法: http : //dev.eclipse.org/mhonarc/lists/tycho-user/msg03277.html
To solve the issue one should add the following sections to POM and build.properties:为了解决这个问题,应该在 POM 和 build.properties 中添加以下部分:
<build>
<plugins>
<plugin>
<groupId>org.eclipse.tycho</groupId>
<artifactId>target-platform-configuration</artifactId>
<version>${tycho-version}</version>
<configuration>
<dependency-resolution>
<extraRequirements>
<requirement>
<type>eclipse-plugin</type>
<id>org.eclipse.swt.win32.win32.x86_64</id>
<versionRange>[3.0.0,4.0.0)</versionRange>
</requirement>
</extraRequirements>
</dependency-resolution>
</configuration>
</plugin>
</plugins>
</build>
build.properties: build.properties:
extra.. = platform:/fragment/org.eclipse.swt.win32.win32.x86_64
I have also updated the GitHub repository我还更新了 GitHub 存储库
This is not so much a bug, but a fundamental issue with the design of PDE/Tycho: the build dependencies are kept as close as possible to the runtime dependencies.这与其说是一个错误,不如说是 PDE/Tycho 设计的一个基本问题:构建依赖项尽可能地接近运行时依赖项。 In this case you need to add a build dependency that doesn't have a corresponding dependency in the runtime, therefore cannot be declared through the OSGi manifest.在这种情况下,您需要添加一个在运行时没有相应依赖项的构建依赖项,因此无法通过 OSGi 清单声明。
The following mailing list message appears to offer a workaround for exactly this issue: http://dev.eclipse.org/mhonarc/lists/tycho-user/msg03277.html以下邮件列表消息似乎提供了解决此问题的方法: http : //dev.eclipse.org/mhonarc/lists/tycho-user/msg03277.html
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