android - 由于 java 不正确，无法构建 android

Question

我有 ubuntu 14.04，我正在尝试为 BBB 构建 android。我得到了 BBB android 并访问了这个站点以获取正确的 java。

我从这个网站获取了android源

http://bbbandroid.sourceforge.net/build.html

然后按照本网站的 java 的步骤，

https://source.android.com/source/initializing#for-ubuntu-14-04

我按照网站上说的做了。

然后 ma​​ke -j4 给出了这个构建错误，

============================================
Checking build tools versions...
************************************************************
You are attempting to build with an unsupported JDK.

You use OpenJDK but only Sun/Oracle JDK is supported.
Please follow the machine setup instructions at
    https://source.android.com/source/download.html
************************************************************
build/core/main.mk:152: *** stop.  Stop.

然后我做了这个

**java -version**
openjdk version "1.8.0_45-internal"
OpenJDK Runtime Environment (build 1.8.0_45-internal-b14)
OpenJDK 64-Bit Server VM (build 25.45-b02, mixed mode)

**sudo update-alternatives --config java**

There are 3 choices for the alternative java (providing /usr/bin/java).

  Selection    Path                                            Priority   Status
------------------------------------------------------------
  0            /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java   1081      auto mode
  1            /usr/lib/jvm/java-6-openjdk-amd64/jre/bin/java   1061      manual mode
  2            /usr/lib/jvm/java-7-openjdk-amd64/jre/bin/java   1071      manual mode
* 3            /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java   1081      manual mode

Press enter to keep the current choice[*], or type selection number: 3

**sudo update-alternatives --config javac**
There are 2 choices for the alternative javac (providing /usr/bin/javac).

  Selection    Path                                         Priority   Status
------------------------------------------------------------
  0            /usr/lib/jvm/java-8-openjdk-amd64/bin/javac   1081      auto mode
  1            /usr/lib/jvm/java-6-openjdk-amd64/bin/javac   1061      manual mode
* 2            /usr/lib/jvm/java-8-openjdk-amd64/bin/javac   1081      manual mode

Press enter to keep the current choice[*], or type selection number: 2

我再次检查了java -version

openjdk version "1.8.0_45-internal"
OpenJDK Runtime Environment (build 1.8.0_45-internal-b14)
OpenJDK 64-Bit Server VM (build 25.45-b02, mixed mode)

还是和以前一样

1. 这里有什么问题？
2. google的android、oracle jdk、sun jdk、open jdk具体支持什么？

Answer 1

您需要获取 Sun/Oracle JDK，而您当前使用的是 OpenJDK。

Sun/Oracle JDK 是受支持的 JDK。 (Sun 归 Oracle 所有)

makefile 输出回答了您的问题。它必须检查并强制使用 Sun/Oracle JDK。

You use OpenJDK but only Sun/Oracle JDK is supported.

Please follow the machine setup instructions at https://source.android.com/source/download.html

需要先安装Sun/Oracle JDK，然后运行

sudo update-alternatives --config java

选择新安装的版本。