集成遇到jdk版本问题

[sky4star]

[dx] indicate that it is not an inner class. [dex] Pre-Dexing /Users/xiaomao/svn_workspace/client/trunk/low/SevengaSDK/libs/bolts.jar -> bolts-e5e0f6b8d2c45c46a2e3c6c8e904926c.jar [dex] Pre-Dexing /Users/xiaomao/svn_workspace/client/trunk/low/Low/proj.android/libs/logsdk-0.0.1.jar -> logsdk-0.0.1-ef550bb19ba2a0ed499a50aa5db992af.jar [dx] [dx] UNEXPECTED TOP-LEVEL EXCEPTION: [dx] com.android.dx.cf.iface.ParseException: bad class file magic (cafebabe) or version (0034.0000) [dx] at com.android.dx.cf.direct.DirectClassFile.parse0(DirectClassFile.java:472) [dx] at com.android.dx.cf.direct.DirectClassFile.parse(DirectClassFile.java:406) [dx] at com.android.dx.cf.direct.DirectClassFile.parseToInterfacesIfNecessary(DirectClassFile.java:388) [dx] at com.android.dx.cf.direct.DirectClassFile.getMagic(DirectClassFile.java:251) [dx] at com.android.dx.command.dexer.Main.processClass(Main.java:665) [dx] at com.android.dx.command.dexer.Main.processFileBytes(Main.java:634) [dx] at com.android.dx.command.dexer.Main.access$600(Main.java:78) [dx] at com.android.dx.command.dexer.Main$1.processFileBytes(Main.java:572) [dx] at com.android.dx.cf.direct.ClassPathOpener.processArchive(ClassPathOpener.java:284) [dx] at com.android.dx.cf.direct.ClassPathOpener.processOne(ClassPathOpener.java:166) [dx] at com.android.dx.cf.direct.ClassPathOpener.process(ClassPathOpener.java:144) [dx] at com.android.dx.command.dexer.Main.processOne(Main.java:596) [dx] at com.android.dx.command.dexer.Main.processAllFiles(Main.java:498) [dx] at com.android.dx.command.dexer.Main.runMonoDex(Main.java:264) [dx] at com.android.dx.command.dexer.Main.run(Main.java:230) [dx] at com.android.dx.command.dexer.Main.main(Main.java:199) [dx] at com.android.dx.command.Main.main(Main.java:103) [dx] ...while parsing com/lambdacloud/sdk/android/DeviceInfo.class [dx] [dx] 1 error; aborting

[sky4star]

貌似是因为我之前提供的是用jdk1.8编译的，安装jdk 1.7，然后重新mvn编译就正常了

[sky4star]

• [ ] brew cask install java7 安装jdk7
• [ ] mvn clean compile package 重新编译，其中设置maven-android-plugin.configuration.sdk.platform 为17
• [ ] javap -v target/classes/com/lambdacloud/sdk/android/DeviceInfo.class | grep "version" 查看编译的版本
• [ ] 另外在Intellij中也可以编译出jar，注意选择Maven Android API 17 Platform jave version为1.7
• [ ] mvn -v 查看java 版本，应该是1.6 或者1.7，可以通过设置JAVA_HOME来修改
  • [ ] Intellij 中将工程使用的jdk选成JDK7，路径是/Labrary/Java/JavaVirtualMachines/jdk1.7.0/Contents/Home (不一定需要）

[sky4star]

set java home

• http://www.mkyong.com/java/how-to-set-java_home-environment-variable-on-mac-os-x/
• edit ~/.bash_profile
  • export JAVA_HOME=$(/usr/libexec/java_home)
• /usr/libexec/java_home -v 1.7 来切换jdk

[wezhang]

wiki中有相应章节：https://github.com/lambdacloud/lanyun/wiki/DEV-%E5%BC%80%E5%8F%91%E7%8E%AF%E5%A2%83-MacOS#%E7%AE%A1%E7%90%86%E5%A4%9A%E7%89%88%E6%9C%AC%E7%9A%84java