Android問題集錦之四十九：Can't add XStream file dependency to Android Studio project

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將xstream1.4.8 引入Android Strudio項目中，編譯報錯如下：

UNEXPECTED TOP-LEVEL EXCEPTION:com.android.dx.cf.iface.ParseException: bad class file magic (cafebabe) or version (0034.0000)    at com.android.dx.cf.direct.DirectClassFile.parse0(DirectClassFile.java:472)    at com.android.dx.cf.direct.DirectClassFile.parse(DirectClassFile.java:406)    at com.android.dx.cf.direct.DirectClassFile.parseToInterfacesIfNecessary(DirectClassFile.java:388)    at com.android.dx.cf.direct.DirectClassFile.getMagic(DirectClassFile.java:251)    at com.android.dx.command.dexer.Main.processClass(Main.java:665)    at com.android.dx.command.dexer.Main.processFileBytes(Main.java:634)    at com.android.dx.command.dexer.Main.access$600(Main.java:78)    at com.android.dx.command.dexer.Main$1.processFileBytes(Main.java:572)    at com.android.dx.cf.direct.ClassPathOpener.processArchive(ClassPathOpener.java:284)    at com.android.dx.cf.direct.ClassPathOpener.processOne(ClassPathOpener.java:166)    at com.android.dx.cf.direct.ClassPathOpener.process(ClassPathOpener.java:144)    at com.android.dx.command.dexer.Main.processOne(Main.java:596)    at com.android.dx.command.dexer.Main.processAllFiles(Main.java:498)    at com.android.dx.command.dexer.Main.runMonoDex(Main.java:264)    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)...while parsing com/thoughtworks/xstream/mapper/LambdaMapper.class1 error; abortingError:Execution failed for task ‘:app:preDexDebug‘.> com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process ‘command ‘/opt/jdk/jdk1.7.0_71/bin/java‘‘ finished with non-zero exit value 1Information:BUILD FAILED

究其原因，xstream1.4.8為Java8編譯，而目前AS尚只支援Java7。那麼我們只好使用低版本的xstream。

大家可以嘗試去這裡下載，但那個狠心的傢伙要6分。不過裡面的例子和jar包都很全，積分少的可以聯絡我。
http://download.csdn.net/download/xiaokui_wingfly/8800295

既然可以解析json和xml，那麼這個庫應該能夠吃得開才對。目前很多項目既要解析xml，又要解析json。如果一個庫搞定，學習成本會下降很多。

參考：
http://stackoverflow.com/questions/28946049/cant-add-xstream-file-dependency-to-android-studio-project/28971602

Android問題集錦之四十九：Can't add XStream file dependency to Android Studio project