Gradle：如何从JScience jar依赖关系中排除javax.realtime包（Multiple dex define） [英] Gradle: How to exclude javax.realtime package from JScience jar dependency (Multiple dex define)

问题描述

我在我的Android应用程序中使用了Gradle，我想使用JScience库依赖。我已经以这种方式添加了这个库：

I'm using Gradle in my Android application an I would like to use the JScience library dependency. I have added the library this way:

dependencies {
    compile fileTree(dir: 'libs', include: '*.jar')

    compile 'org.jscience:jscience:4.3.1'

    testCompile group: 'junit', name: 'junit', version: '4.11'
}

但在编译时我收到错误：

But in the compile time I get the error:

UNEXPECTED TOP-LEVEL EXCEPTION:
com.android.dex.DexException: Multiple dex files define Ljavax/realtime/MemoryArea;
    at com.android.dx.merge.DexMerger.readSortableTypes(DexMerger.java:594)
    at com.android.dx.merge.DexMerger.getSortedTypes(DexMerger.java:552)
    at com.android.dx.merge.DexMerger.mergeClassDefs(DexMerger.java:533)
    at com.android.dx.merge.DexMerger.mergeDexes(DexMerger.java:170)
    at com.android.dx.merge.DexMerger.merge(DexMerger.java:188)
    at com.android.dx.command.dexer.Main.mergeLibraryDexBuffers(Main.java:439)
    at com.android.dx.command.dexer.Main.runMonoDex(Main.java:287)
    at com.android.dx.command.dexer.Main.run(Main.java:230)
    at com.android.dx.command.dexer.Main.main(Main.java:199)
    at com.android.dx.command.Main.main(Main.java:103)

这是因为在项目中复制了 javax.realtime 包，一个是JDK的一部分，第二个是在科学图书馆。我已经尝试在Gradle中从Jscience库中删除这个包：

This is caused because of duplicating javax.realtime packages in project, one is a part of JDK, and the second one is in the Jscience library. I have tried to remove this package from Jscience library this way in Gradle:

sourceSets {
    main {
        java {
            exclude 'javax/realtime/**'
        }
    }
}

configurations {
    all*.exclude group: 'javax.realtime'
}

但这没有帮助。那么，该包仍然存在于依赖关系中。

But that didn't help. So, that package is still exists in dependencies.

是有没有办法在编译时从jar中排除一个包？

Is there any way how I can exclude a package from jar on compile time?

推荐答案

如果有人需要，问题出在 Javolution 依赖于 JScience 库。他们都做一个 javax.runtime 包。排除 Javolution 已经解决了我的问题。

In case anybody needed, the problem was in Javolution dependency from JScience library. They both do hava a javax.runtime package. Excluding the Javolution has fixed the issue for me.

compile ('org.jscience:jscience:4.3.1') {
    exclude group: 'org.javolution', module: 'javolution'
}

这篇关于Gradle：如何从JScience jar依赖关系中排除javax.realtime包（Multiple dex define）的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！