英文:
JAVA_HOME is not defined correctly on Ubuntu when trying to run Ballerina code?
问题
我已经在环境变量文件中设置了JAVA_HOME，如下所示。
我还从源代码构建了Ballerina，并根据Ballerina文档提取了包含运行时和工具的ZIP文件。然而，当我尝试将此分发作为Ballerina SDK在IntelliJ IDEA中，甚至在终端中运行Ballerina程序时，我收到以下错误：
出现以下错误：
错误：JAVA_HOME未正确定义。
但是当我输入：
echo $JAVA_HOME <br/>
我得到以下输出：
/usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java
我做错了什么？
注意：Ballerina版本：jballerina-tools-2.0.0-Preview3-SNAPSHOT。
英文:
I have already set JAVA_HOME in the environment variables file as shown below.
I also built ballerina from the source and extracted the zip with the Runtime and the tools as per the Ballerina documentation. However when I try to give this distribution as the Ballerina SDK in IntelliJ IDEA or even in the Terminal and try to run a Ballerina program as shown below:
I get the following error:
Error: JAVA_HOME is not defined correctly.
But when I type:<br/>
echo $JAVA_HOME <br/>
I get the following output:
/usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java
What am I doing wrong?
Note: Ballerina Version: jballerina-tools-2.0.0-Preview3-SNAPSHOT
答案1
得分: 1
你的 JAVA_HOME 环境变量的值是错误的。它不应该指向可执行文件，而应该指向Java安装的位置（即一个目录）。
在你的情况下，正确的值似乎是：
/usr/lib/jvm/java-8-openjdk-amd64
也可以参考如何设置Java的JAVA_HOME？。
普通的Ballerina 1.2分发版不需要JAVA_HOME，但由于你正在构建一个预览版本，你的情况可能不同。
英文:
The value of your JAVA_HOME environment variable is wrong. It should not to point to an executable but to the location (i.e. a directory) of the Java installation.
In your case the correct value seems to be:
/usr/lib/jvm/java-8-openjdk-amd64
See also e.g. How to set JAVA_HOME for Java?.
Normal Ballerina 1.2 distribution doesn't require JAVA_HOME but this might be different in your case as you're building a preview release.
答案2
得分: 0
@user272735部分正确，但您可以看到我已经在环境文件中添加了正确的Java主目录路径。实际问题是，在更改环境文件中的Java主目录路径并运行以下命令时，我正在terminator上工作。
source /etc/environment
但我尝试在普通终端上运行Ballerina代码，其中路径更改尚未注册。
如何解决：
我还必须在终端中运行以下命令。然后，当我回显Java路径时，它打印了环境文件中的路径，并且Ballerina代码也正常运行。
source /etc/environment
英文:
what @user272735 was partly correct but you can see that I have added the correct Java Home path in the environment file. Actually the problem was that I was working on terminator when changing the java home path in the environment file and running the below command.
source /etc/environment
But I was trying to run the ballerina code in the plain-old Terminal where the path change was not registered yet.
How to resolve:
I had to run the below command in the Terminal as well. Then when I echoed the java path it printed the one in the environment file and the ballerina code also ran without a problem.
source /etc/environment
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