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Bug
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Resolution: Fixed
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P2
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6u10
| Issue | Fix Version | Assignee | Priority | Status | Resolution | Resolved In Build |
|---|---|---|---|---|---|---|
| JDK-2170276 | 7 | Andy Herrick | P4 | Resolved | Fixed | b64 |
J2SE Version (please include all output from java -version flag):
java version "1.6.0_10-rc"
Java(TM) SE Runtime Environment (build 1.6.0_10-rc-b28)
Java HotSpot(TM) Client VM (build 11.0-b15, mixed mode, sharing)
Does this problem occur on J2SE 1.3, 1.4.x or 1.5? Yes / No (pick one)
No. 1.6.0_07 is fine.
Operating System Configuration Information (be specific):
Windows XP SP2, IE7
Hardware Configuration Information (be specific):
Standard desktop
Bug Description:
When we use LiveConnect javascript facility to navigate HTML elements using document.all.item, it would cause an JSException when it evalute attributes of an applet tag. I have reduce our production applet into a smaller test case and you can easily catch the exception but using our production applet it crashes the Internet Explorer.
Steps to Reproduce (be specific):
1) Install the following test cases:
TestJSObject.html:
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>TestJSObject</title>
</head>
<body>
<applet alt="Java not installed properly" code="TestJSObject" codebase="bin/" width="640" height="480" MAYSCRIPT></applet>
<table>
<TR bgcolor="#123456">
<TD>Testing 1</TD>
<TD>Testing 2</TD>
</TR>
</table>
</body>
</html>
TestJSObject.java:
import javax.swing.JApplet;
import javax.swing.JTextArea;
import netscape.javascript.JSException;
import netscape.javascript.JSObject;
public class TestJSObject extends JApplet {
@Override
public void init() {
JTextArea area = new JTextArea(100,100);
JSObject appletWindow = JSObject.getWindow(this);
JSObject document = (JSObject) appletWindow.getMember("document");
if( document == null) {
area.append("Document is null!!!!");
} else {
area.append("Document is: "+document);
}
area.append("\n");
JSObject documentElement = (JSObject) document.getMember("documentElement");
area.append("documentElement = "+documentElement);
area.append("\n");
String innerHTML = (String) documentElement.getMember("innerHTML");
area.append("innerHTML = "+innerHTML);
area.append("\n");
JSObject allItem = (JSObject) document.getMember("all");
area.append("all element="+allItem);
area.append("\n");
area.append("item length="+allItem.getMember("length"));
int length = (Integer) allItem.getMember("length");
area.append("\n");
for(int i=0; i<length; i++) {
try {
JSObject element = (JSObject) allItem.call("item", new Object[] {i});
area.append("item "+i+" = "+ element.getMember("tagName")+".localName=s"+element.call("getAttribute",new Object[] {"GSLinkElement"}));
area.append("\n");
} catch (JSException jse) {
area.append("Exception occured\n");
area.append("Exception = "+jse.getLocalizedMessage());
}
}
add(area);
setVisible(true);
}
}
2) When you run this applet, with Java 6 update 7 it will show this:
Document is: [object HTMLDocument]
documentElement = [object HTMLElement]
innerHTML = <HEAD><TITLE>TestJSObject</TITLE>
<META http-equiv=Content-Type content="text/html; charset=ISO-8859-1"></HEAD>
<BODY><!--
--><APPLET codeBase=bin/ height=480 alt="Java not installed properly" width=640 code=TestJSObject MAYSCRIPT><PARAM NAME="_cx" VALUE="16933"><PARAM NAME="_cy" VALUE="12700"></APPLET>
<TABLE>
<TBODY>
<TR bgColor=#123456>
<TD>Testing 1</TD>
<TD>Testing 2</TD></TR></TBODY></TABLE></BODY>
all element=[object HTMLCollection]
item length=13
item 0 = !.localName=snull
item 1 = HTML.localName=snull
item 2 = HEAD.localName=snull
item 3 = TITLE.localName=snull
item 4 = META.localName=snull
item 5 = BODY.localName=snull
item 6 = !.localName=snull
item 7 = APPLET.localName=snull
item 8 = TABLE.localName=snull
item 9 = TBODY.localName=snull
item 10 = TR.localName=snull
item 11 = TD.localName=snull
item 12 = TD.localName=snull
When you run this applet under Java 6 Update 10, it will show this:
Document is: [object]
documentElement = [object]
innerHTML = <HEAD><TITLE>TestJSObject</TITLE>
<META http-equiv=Content-Type content="text/html; charset=ISO-8859-1"></HEAD>
<BODY><!--
--><APPLET codeBase=bin/ height=480 alt="Java not installed properly" width=640 code=TestJSObject MAYSCRIPT><PARAM NAME="_cx" VALUE="16933"><PARAM NAME="_cy" VALUE="12700"></APPLET>
<TABLE>
<TBODY>
<TR bgColor=#123456>
<TD>Testing 1</TD>
<TD>Testing 2</TD></TR></TBODY></TABLE></BODY>
all element=[object]
item length=13
item 0 = !.localName=snull
item 1 = HTML.localName=snull
item 2 = HEAD.localName=snull
item 3 = TITLE.localName=snull
item 4 = META.localName=snull
item 5 = BODY.localName=snull
item 6 = !.localName=snull
Exception occured
Exception = ??o?????o?o??:item 8 = TABLE.localName=snull
item 9 = TBODY.localName=snull
item 10 = TR.localName=snull
item 11 = TD.localName=snull
item 12 = TD.localName=snull
This is the exception.printStackTrace() output from our production application.
netscape.javascript.JSException: ?????????????:
at sun.plugin2.main.client.MessagePassingJSObject.newJSException(MessagePassingJSObject.java:227)
at sun.plugin2.main.client.MessagePassingJSObject.waitForReply(MessagePassingJSObject.java:141)
at sun.plugin2.main.client.MessagePassingJSObject.call(MessagePassingJSObject.java:67)
at com.gs.eq.csc.merch.LiveBrowser.JSObjectHelper.getStringElementAttribute(JSObjectHelper.java:92)
at com.gs.eq.csc.merch.LiveBrowser.GSLinkController.processDocument(GSLinkController.java:157)
at com.gs.eq.csc.merch.LiveBrowser.LiveBrowserApplet.run(LiveBrowserApplet.java:464)
at java.lang.Thread.run(Thread.java:619)
java version "1.6.0_10-rc"
Java(TM) SE Runtime Environment (build 1.6.0_10-rc-b28)
Java HotSpot(TM) Client VM (build 11.0-b15, mixed mode, sharing)
Does this problem occur on J2SE 1.3, 1.4.x or 1.5? Yes / No (pick one)
No. 1.6.0_07 is fine.
Operating System Configuration Information (be specific):
Windows XP SP2, IE7
Hardware Configuration Information (be specific):
Standard desktop
Bug Description:
When we use LiveConnect javascript facility to navigate HTML elements using document.all.item, it would cause an JSException when it evalute attributes of an applet tag. I have reduce our production applet into a smaller test case and you can easily catch the exception but using our production applet it crashes the Internet Explorer.
Steps to Reproduce (be specific):
1) Install the following test cases:
TestJSObject.html:
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>TestJSObject</title>
</head>
<body>
<applet alt="Java not installed properly" code="TestJSObject" codebase="bin/" width="640" height="480" MAYSCRIPT></applet>
<table>
<TR bgcolor="#123456">
<TD>Testing 1</TD>
<TD>Testing 2</TD>
</TR>
</table>
</body>
</html>
TestJSObject.java:
import javax.swing.JApplet;
import javax.swing.JTextArea;
import netscape.javascript.JSException;
import netscape.javascript.JSObject;
public class TestJSObject extends JApplet {
@Override
public void init() {
JTextArea area = new JTextArea(100,100);
JSObject appletWindow = JSObject.getWindow(this);
JSObject document = (JSObject) appletWindow.getMember("document");
if( document == null) {
area.append("Document is null!!!!");
} else {
area.append("Document is: "+document);
}
area.append("\n");
JSObject documentElement = (JSObject) document.getMember("documentElement");
area.append("documentElement = "+documentElement);
area.append("\n");
String innerHTML = (String) documentElement.getMember("innerHTML");
area.append("innerHTML = "+innerHTML);
area.append("\n");
JSObject allItem = (JSObject) document.getMember("all");
area.append("all element="+allItem);
area.append("\n");
area.append("item length="+allItem.getMember("length"));
int length = (Integer) allItem.getMember("length");
area.append("\n");
for(int i=0; i<length; i++) {
try {
JSObject element = (JSObject) allItem.call("item", new Object[] {i});
area.append("item "+i+" = "+ element.getMember("tagName")+".localName=s"+element.call("getAttribute",new Object[] {"GSLinkElement"}));
area.append("\n");
} catch (JSException jse) {
area.append("Exception occured\n");
area.append("Exception = "+jse.getLocalizedMessage());
}
}
add(area);
setVisible(true);
}
}
2) When you run this applet, with Java 6 update 7 it will show this:
Document is: [object HTMLDocument]
documentElement = [object HTMLElement]
innerHTML = <HEAD><TITLE>TestJSObject</TITLE>
<META http-equiv=Content-Type content="text/html; charset=ISO-8859-1"></HEAD>
<BODY><!--
--><APPLET codeBase=bin/ height=480 alt="Java not installed properly" width=640 code=TestJSObject MAYSCRIPT><PARAM NAME="_cx" VALUE="16933"><PARAM NAME="_cy" VALUE="12700"></APPLET>
<TABLE>
<TBODY>
<TR bgColor=#123456>
<TD>Testing 1</TD>
<TD>Testing 2</TD></TR></TBODY></TABLE></BODY>
all element=[object HTMLCollection]
item length=13
item 0 = !.localName=snull
item 1 = HTML.localName=snull
item 2 = HEAD.localName=snull
item 3 = TITLE.localName=snull
item 4 = META.localName=snull
item 5 = BODY.localName=snull
item 6 = !.localName=snull
item 7 = APPLET.localName=snull
item 8 = TABLE.localName=snull
item 9 = TBODY.localName=snull
item 10 = TR.localName=snull
item 11 = TD.localName=snull
item 12 = TD.localName=snull
When you run this applet under Java 6 Update 10, it will show this:
Document is: [object]
documentElement = [object]
innerHTML = <HEAD><TITLE>TestJSObject</TITLE>
<META http-equiv=Content-Type content="text/html; charset=ISO-8859-1"></HEAD>
<BODY><!--
--><APPLET codeBase=bin/ height=480 alt="Java not installed properly" width=640 code=TestJSObject MAYSCRIPT><PARAM NAME="_cx" VALUE="16933"><PARAM NAME="_cy" VALUE="12700"></APPLET>
<TABLE>
<TBODY>
<TR bgColor=#123456>
<TD>Testing 1</TD>
<TD>Testing 2</TD></TR></TBODY></TABLE></BODY>
all element=[object]
item length=13
item 0 = !.localName=snull
item 1 = HTML.localName=snull
item 2 = HEAD.localName=snull
item 3 = TITLE.localName=snull
item 4 = META.localName=snull
item 5 = BODY.localName=snull
item 6 = !.localName=snull
Exception occured
Exception = ??o?????o?o??:item 8 = TABLE.localName=snull
item 9 = TBODY.localName=snull
item 10 = TR.localName=snull
item 11 = TD.localName=snull
item 12 = TD.localName=snull
This is the exception.printStackTrace() output from our production application.
netscape.javascript.JSException: ?????????????:
at sun.plugin2.main.client.MessagePassingJSObject.newJSException(MessagePassingJSObject.java:227)
at sun.plugin2.main.client.MessagePassingJSObject.waitForReply(MessagePassingJSObject.java:141)
at sun.plugin2.main.client.MessagePassingJSObject.call(MessagePassingJSObject.java:67)
at com.gs.eq.csc.merch.LiveBrowser.JSObjectHelper.getStringElementAttribute(JSObjectHelper.java:92)
at com.gs.eq.csc.merch.LiveBrowser.GSLinkController.processDocument(GSLinkController.java:157)
at com.gs.eq.csc.merch.LiveBrowser.LiveBrowserApplet.run(LiveBrowserApplet.java:464)
at java.lang.Thread.run(Thread.java:619)
- backported by
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JDK-2170276 REGRESSION:JSException throws when use LiveConnect javascript facility to navigate HTML elements
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- Resolved
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- duplicates
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-
- Closed
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- Closed
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- relates to
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- Closed
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