[英]How do you get the JavaScript stack trace from Nashorn?
I have a script that works just fine in Chrome but crashes on Nashorn with: 我有一个在Chrome中工作得很好但在Nashorn崩溃的脚本:
(Error: Namespace "com.cognitect.transit.util" already declared. in at line number 19664 at column number 6 (错误:名称空间“com.cognitect.transit.util”已在第6栏第19664行声明。
That error is not very useful, as that line contains: 该错误不是很有用,因为该行包含:
throw Error('Namespace "' + name + '" already declared.');
I need to get a full stack trace from Nashorn, I found NashornException.getScriptStackString
but the error Nashorn is generating is of type javax.script.ScriptException
which gives me an empty string when I call NashornException.getScriptStackString
. 我需要从Nashorn获得一个完整的堆栈跟踪,我找到了NashornException.getScriptStackString
但是Nashorn生成的错误是javax.script.ScriptException
类型,当我调用NashornException.getScriptStackString
时,它给了我一个空字符串。
How do I get an JavaScript stack trace from Nashorn? 如何从Nashorn获取JavaScript堆栈跟踪?
I don't want to do it from JavaScript, I want to do it the same way the browser does it, no matter what JS code you are running. 我不想从JavaScript中做到这一点,无论你运行什么JS代码,我都希望以与浏览器相同的方式实现它。 A lot of my JS code is third party, it's generated, I cannot modify the thousand of functions I have to print exceptions just in case. 很多我的JS代码都是第三方,它是生成的,我无法修改我必须打印异常的数千个函数以防万一。
The NashornException
is available as cause of the ScriptException
: 该NashornException
可作为原因ScriptException
:
import jdk.nashorn.api.scripting.NashornException;
...
catch (ScriptException e) {
if (e.getCause() instance of NashornException)
String jsStackTrace = NashornException.getScriptStackString(e.getCause());
}
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