зеркало из https://github.com/mozilla/gecko-dev.git
e584b07f01
If I have a Java class with a normal method that throws an exception, Rhino
(1.5pre4) will let JavaScript catch the exception. If the Java class has a
getter method, Rhino will NOT let JavaScript catch the exception. Very
disturbing.
Here's a console dump to show you what I'm talking about:
D:\jsSandbox>cat GIJoe.java
public class GIJoe
{
// Getter
public static int getYoJoe()
throws Exception
{
throw new Exception("Please catch me!");
}
// Normal
public static int rebel()
throws Exception
{
throw new Exception("Please catch me too!");
}
}
D:\jsSandbox>javac GIJoe.java
D:\jsSandbox>cat gi.js
var gi = new Packages.GIJoe();
try
{
var i = gi.rebel();
java.lang.System.err.println("rebel(): uncaught");
}
catch(e1)
{
java.lang.System.err.println("rebel(): caught");
}
try
{
var i = gi.yoJoe;
java.lang.System.err.println("yoJoe: uncaught");
}
catch(e2)
{
java.lang.System.err.println("yoJoe: caught");
}
D:\jsSandbox>java -cp .;e:\javas\rhino1_5R4pre\js.jar
org.mozilla.javascript.too
ls.shell.Main
js> load("gi.js");
rebel(): caught
java.lang.Exception: Please catch me!
org.mozilla.javascript.WrappedException: WrappedException of Please catch
me!
at org.mozilla.javascript.JavaMembers.get(JavaMembers.java:105)
at
org.mozilla.javascript.NativeJavaObject.get(NativeJavaObject.java:93)
at
org.mozilla.javascript.ScriptRuntime.getProp(ScriptRuntime.java:691)
at
org.mozilla.javascript.Interpreter.interpret(Interpreter.java:1591)
at
org.mozilla.javascript.InterpretedScript.call(InterpretedScript.java:
63)
at
org.mozilla.javascript.InterpretedScript.exec(InterpretedScript.java:
54)
at org.mozilla.javascript.Context.evaluateReader(Context.java:741)
at
org.mozilla.javascript.tools.shell.Main.evaluateReader(Main.java:347)
at
org.mozilla.javascript.tools.shell.Main.processSource(Main.java:336)
at org.mozilla.javascript.tools.shell.Global.load(Global.java:169)
at java.lang.reflect.Method.invoke(Native Method)
at
org.mozilla.javascript.FunctionObject.callVarargs(FunctionObject.java
:586)
at
org.mozilla.javascript.FunctionObject.call(FunctionObject.java:460)
at
org.mozilla.javascript.ScriptRuntime.call(ScriptRuntime.java:1216)
at
org.mozilla.javascript.Interpreter.interpret(Interpreter.java:1679)
at
org.mozilla.javascript.InterpretedScript.call(InterpretedScript.java:
63)
at
org.mozilla.javascript.InterpretedScript.exec(InterpretedScript.java:
54)
at org.mozilla.javascript.Context.evaluateReader(Context.java:741)
at
org.mozilla.javascript.tools.shell.Main.evaluateReader(Main.java:347)
at
org.mozilla.javascript.tools.shell.Main.processSource(Main.java:284)
at org.mozilla.javascript.tools.shell.Main.exec(Main.java:146)
at org.mozilla.javascript.tools.shell.Main.main(Main.java:74)
js>
Due to a lack of an "uncaught" statement in the output, we see that the
exception from GIJoe::getYoJoe() was indeed thrown, but not caught by the
JavaScript.
Do any nightly builds past 1.5pre4 address this issue?
Todd Trimmer
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| .. | ||
| docs | ||
| examples | ||
| macbuild | ||
| src | ||
| toolsrc | ||
| Makefile | ||
| README.html | ||
| apiClasses.properties | ||
| build-date | ||
| build.xml | ||
README.html
<html> <!-- - The contents of this file are subject to the Netscape Public - License Version 1.1 (the "License"); you may not use this file - except in compliance with the License. You may obtain a copy of - the License at http://www.mozilla.org/NPL/ - - Software distributed under the License is distributed on an "AS - IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or - implied. See the License for the specific language governing - rights and limitations under the License. - - The Original Code is Rhino code, released - May 6, 1999. - - The Initial Developer of the Original Code is Netscape - Communications Corporation. Portions created by Netscape are - Copyright (C) 1998-1999 Netscape Communications Corporation. All - Rights Reserved. - - Contributor(s): - Norris Boyd - - Alternatively, the contents of this file may be used under the - terms of the GNU Public License (the "GPL"), in which case the - provisions of the GPL are applicable instead of those above. - If you wish to allow use of your version of this file only - under the terms of the GPL and not to allow others to use your - version of this file under the NPL, indicate your decision by - deleting the provisions above and replace them with the notice - and other provisions required by the GPL. If you do not delete - the provisions above, a recipient may use your version of this - file under either the NPL or the GPL. --> <body> <h1> <span CLASS=LXRSHORTDESC> Rhino: JavaScript in Java<p> </span> </h1> <span CLASS=LXRLONGDESC> Rhino is an implementation of JavaScript in Java. Documentation can be found <a href="http://www.mozilla.org/js/rhino/rhino.html">here</a>. </span> </body> </html>