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Problems with Java

Discussion in 'Firefox, Thunderbird & SeaMonkey' started by sic, 2003/09/19.

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  1. 2003/09/19
    sic

    sic Inactive Thread Starter

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    Since the plugin doc at mozdev.org (http://plugindoc.mozdev.org/windows.html) suggested upgrading the Java Runtime Environment of Netscape 7.1, I downloaded the latest version (1.4.2_01). Ever since I am unable to launch the java Chess program at Yahoo games. Netscape just hangs when I try to start the applet (spiking to 100% of CPU until I shut Netscape down). I tried uninstalling and reinstalling, but no luck. I would like to try to go back to the original version but I can't seem to find it on Sun's home page as they keep redirecting me to the latest version.

    Does anybody have a similar problem, or better yet, a solution?

    One of the reasons I decided to upgrade the Java version was because I didn't like the way it behaved when a java program was launched. All other drop down menus, even the windows start menu would flicker, giving the impression of instability. In retrospect, I didn't realize how good I had it....
     
    sic,
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  2. 2003/09/19
    sic

    sic Inactive Thread Starter

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    Oops, I just stumbled on the JRE archive page (http://java.sun.com/products/archive/), but before I uninstall the latest version for an older version, can anyone advise me if this is the right thing to do?
     
    sic,
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  4. 2003/09/19
    Ramona

    Ramona Geek Member Alumni

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    Hi sic,

    I'm not sure which version of Netscape you're having problems with, but I can tell you that with Netscape 7.02, 7.1 and Mozilla 1.5b, that the Sun Java 1.4.2 works very well. Having the latest and greatest isn't worthwhile if it isn't compatible with your system.

    You should definitely uninstall the existing Version of Java before installing another version.

    Ramona :D
     
  5. 2003/09/19
    Eck

    Eck Inactive

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    Sic,

    I've had the same problem using Java 1.4.2.01 on Netscape 7.1 with Windows XP. Funny, but Windows 98 doesn't show this problem. Just use the last version of 1.4.1, which at last check was 1.4.1.04. This actually came out after 1.4.2, so I would assume any security updates are included. Anyway, that version works fine on Windows XP with Netscape 7.1. Of course, uninstall whatever version you have installed from add/remove programs, reboot, then install the new (old) one.

    By the way Ramona, I was excited to see the .01 release, hopeful that these problems would be addressed. I checked the release notes and saw nothing, but tried 1.4.2.01 anyway. No go, so it was back to 1.4.1.04. I don't think Sun thinks a problem even exists. And, geez, they sure make it hard to find the release notes, don't they?

    Dennis
     
    Eck,
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  6. 2003/09/20
    sic

    sic Inactive Thread Starter

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    Thanks Ramona and Eck for your replies.

    Eck, your set up is exactly like mine Windows XP Pro Netscape 7.1 and Java 1.42_01 and it works really bad. I'm going to uninstall it again and try 1.41_04. Thanks for your input, I was beginning to think I was the only one with this problem!

    cheers.
     
    sic,
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  7. 2003/09/20
    sic

    sic Inactive Thread Starter

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    By any chance does anybody know of an alternate download site for the 1.4.1.04 version of Java? I've been trying to get it from the Sun site all morning but it always says that their servers are busy.... :(


    By the way Eck, do you notice drop down menus and the start bar flickering when you use the 1.4.104 version of java? That was one of the reasons I tried upgrading.
     
    sic,
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  8. 2003/09/20
    Eck

    Eck Inactive

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    Sic,

    Nope, no flickering here! And, the Sun site is where I downloaded my Sun Java so as far as I know you'll have to wait until their servers cooperate.
     
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  9. 2003/09/21
    sic

    sic Inactive Thread Starter

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    I finally downloaded the older version from the Sun site, but unfortunately, I get the same problem. I also downloaded Mozilla 1.4 and tried it there, same deal (I guess that makes sense).

    I did notice one thing though. I opened the Yahoo chess applet in IE and then opened it in Netscape and it opened without a hitch!. So I can deduce that the problem is "opening" the applet or launching java from Netscape (or both), not running it, because once it was opened in IE the problem disappeared. That made me think about the Helper Application setting. Should there be a setting defined for Java? I'm just guessing. Eck could you take a look at your Java configuration in Helper Application and see if I am missing something?

    thanks!
     
    sic,
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  10. 2003/09/23
    Eck

    Eck Inactive

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    Yes, there is an associated Helper Application. However, I didn't do it. It was installed automatically by the Java installer. If yours didn't put it there, I wonder what else might not be installed right. I would try uninstalling Sun Java in add/remove programs, rebooting, and reinstalling Java. If that doesn't put it there, the ap is: application/x-java-julp-file, and it opens with the default application (sun java).

    Before doing this, you might try just unchecking, rebooting, and rechecking, rebooting the box in the control panel's sun java controller that designates Netscape for the java plugin.
     
    Eck,
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  11. 2003/09/25
    sic

    sic Inactive Thread Starter

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    Hi Eck,

    I appreciate the advice you are giving me but unfortunately it hasn't worked yet. :(

    I tried manually inserting the helper app, but I don't know what to put in the Extension field. Can you take another look? Also I am pointing at this executable in the sun java program folder : javaws-1_2_0_04-windows-i586-i.exe

    I was wondering if that is correct.

    Thanks again.
     
    sic,
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  12. 2003/09/25
    Ramona

    Ramona Geek Member Alumni

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    Hi sic,

    The exe file you're asking about is incorrect, as that is the Web Start executable. That's a developer program which is included in later Versions of Sun Java. I think Dennis will agree with me, that you don't need to include Java in your Helper Applications, and it should be used as a plugin.

    Go to your Java Control Panel in:
    Start | Settings | Control Panel | Java Plugin. Click on the Browser tab, and ensure that you have enabled the Mozilla Settings. Also check your Mozilla plugins folder, and ensure that these files are in place:
    NPJava11.dll
    NPJava12.dll
    NPJava13.dll
    NPJava14.dll
    NPJava32.dll
    NPJPI141.dll (or similar to)
    NPOJI610.dll

    If not, then copy these files from your Java programs folder to the Mozilla plugins folder.

    Dennis,
    Running Windows 98SE, I haven't had any problems with the 1.4.2 Release, so didn't give the 01 a try. YES, Release Notes are a challenge to find, and in fact, that site is not the easiest to navigate!

    Ramona :D
     
  13. 2003/09/25
    sic

    sic Inactive Thread Starter

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    Hi Ramona,

    thanks for the reply. I checked my Mozilla plugin folder and I have all of the plugins except for NPJava14.dll, but it's not in my java /bin/ folder either so I imagine that that dll comes with a later version. So unfortunately that is not the problem.

    This is really frustrating because I often play chess at yahoo, but I am forced to go back to IE to do so, which is very very depressing as I was hoping to leave IE in my dust for good.

    Could you help me set up the Helper Application? It's really my last shot, all I need is the name of the .exe to point at and the common extension.
     
    sic,
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  14. 2003/09/26
    Ramona

    Ramona Geek Member Alumni

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    Hi sic,

    To set up Java as a Netscape Helper Application:
    MIME Type: application/x-java-vm
    Application to use: Point to java.exe found under: ~\Program Files\Java\bin

    You definitely shouldn't have to do this in order to get Java to run. There is something else going on that freezes Netscape on the Yahoo site. How about other sites? What happens on this page:
    National Weather Service Radar

    I'm certain that you have enabled Java within your Browser preferences...

    Ramona :D
     
  15. 2003/09/26
    sic

    sic Inactive Thread Starter

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    Hi Ramona,

    Yes I can see the Radar service. Although at first it did max out my CPU, after about 10 seconds it started to work normally.

    Which means that there is some inexplicable problem with Yahoo. What I don't understand is that if I use Java in IE, as opposed to the MS virtual java machine, it launches without a hitch. Frustrating. Anyway, I've sent an error report to Yahoo help about this. Hopefully they'll have some idea. Thanks for all your help.
     
    sic,
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  16. 2003/09/29
    sic

    sic Inactive Thread Starter

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    Well I finally resolved this problem and I hope I can save somebody else a lot of hassle by posting it here. As far as I can tell this problem is specific to Yahoo! games but I suppose that it could effect other sites given a certain set of circumstances.

    First of all, I finally stopped focussing all of my attention on Java and started considering other factors that could be conflicting with a jre that was working fine. This means I started looking at other programs that were running. Antivirus? No, no problem. Firewall? No, no problem? Mail program? No, no problem. Adblock extensions? AHHHH! Very big problem! In fact THE problem. Turns out that if you have the Adblock extension (http://adblock.mozdev.org/index.html) enabled AND set to remove ads (as opposed to just hide them), Yahoo! gets locked into an evil closed loop when it tries to open a java applet. They probably have some script that checks to see that the ad is loaded before they finish loading the applet and that reloads the ad if it is disappears, meanwhile my Adblock extension probably has another script that was removing the ad as they were being placed and, well you get the picture. So remember kids, you can continue to use the Adblock extension, just be sure to set it to HIDE ads as opposed to REMOVE ads.

    Also, the flickering problem is still there (see earlier posts) but are confined to Yahoo games, not other java sites. So there is probably some other obscure conflict there, but who cares?

    Thanks again to Ramona and Eck for all of their patience....
     
    sic,
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  17. 2003/09/29
    Ramona

    Ramona Geek Member Alumni

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    Hi sic,

    Thanks so much for posting back your results! So the culprit was the addon from Mozilla, and not Java...

    This may very well save someone else a lot of hassle!

    Ramona :D
     
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