Bug: Java applet cannot print, even with print permission granted.

I was not able to file this bug report at the official Apple bug report site, so...
Summary:
When a java applet initiates a print job, the user is (correctly) presented with a dialog requesting permission for printing. Once permission is granted, the printing subsystem attempts to communicate with CUPS at localhost:631, and permission is denied. To the naive user, it appears that the applet is broken.
Steps to Reproduce:
Go to
http://www.wordle.net/gallery/wrdl/921427/WordleCore_SourceCode
Once the applet has loaded, click the button labelled "Print...".
Expected Results:
After permitting printing, the user should see the print dialog, and printing should proceed as normal.
Actual Results:
Here is the relevant section of the stack trace generated when this happens:
<pre>java.security.AccessControlException: access denied
(java.net.SocketPermission localhost:631 connect,resolve)
at java.security.AccessControlContext.checkPermission
(AccessControlContext.java:264)
at java.security.AccessController.checkPermission
(AccessController.java:427)
at java.lang.SecurityManager.checkPermission(SecurityManager.java:
532)
at java.lang.SecurityManager.checkConnect(SecurityManager.java:1034)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:521)
at sun.net.www.http.HttpClient.<init>(HttpClient.java:231)
at sun.net.www.http.HttpClient.New(HttpClient.java:304)
at sun.net.www.http.HttpClient.New(HttpClient.java:321)
at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient
(HttpURLConnection.java:813)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect
(HttpURLConnection.java:765)
at sun.net.www.protocol.http.HttpURLConnection.connect
(HttpURLConnection.java:690)
at sun.net.www.protocol.http.HttpURLConnection.getOutputStream
(HttpURLConnection.java:857)
at sun.print.IPPPrintService.opGetAttributes(IPPPrintService.java:
1419) </pre>
Regression:
This problem was introduced only with the most recent Java update.
Notes:
There is no workaround for the applet author, other than to use a signed applet, which is prohibitively expensive, and which should not be required for printing, anyway. It's difficult to instruct the user in how to grant the appropriate permissions via policy files, since the finder will not allow a user to create a file named ".java.policy" in their home directory, and since the system policy file is write-protected.

Jonathan Feinberg wrote:
I was not able to file a bug report
You should file a bug report with Apple at http://bugreport.apple.com if you have a developer account or at http://www.apple.com/feedback/macosx.html if you do not have a developer account.
Good luck w/your issue and please update this thread if you encounter a solution.

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Re: [Fwd: Java Applet IIOP Call-In with Release 3C--How dowe speed up d

Hi Michael,
We have done exactly what you describe and have avoided the slow applet
download times. Although it can be a bit tricky, it is possible to use
the ORB bundled inside the Netscape 4.0 browser (Visibroker for Java by
Visigenic). Most of the code should follow Netscape's examples (on
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Netscape has just implemented the applet caching schemes you describe,
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Subject: Java Applet IIOP Call-In with Release 3C--How do we speed up download time.
Date: Wed, 2 Jul 1997 09:10:31 -0500
From: Michael Nelson <[email protected]>
To: "'[email protected]'" <[email protected]>
We have successfully implemented a simple Java Applet that calls into
Forte Services via IIOP. However, the duration of the download time
for
Applet and its required class files is UNACCEPTABLE in a typical
INTERNET environment where 28.8K modems and multiple hops around the
net
are not uncommon. We dialed into our network at 28.8K (but no
hopping),
and found that download times varied from 1.5 - 2.0 minutes. This is
unacceptable, even by internet standards. We have been using the
Visigenic Visibroker product as the ORB.
After doing some investigation, we've come up with several ideas to
speed up download time:
1. Figure out how to use the Visigenic components (CORBA/IIOP class
files) that come bundled with the latest version of the Netscape
Navigator browser, so that they don't have to be downloaded
2. Figure out how to use ZIP files. Here's what I've read: "Since
the
introduction of Netscape Navigator 3.0, you can specify an
uncompressed
.zip file as an addition to the code base of your application. By
specifying a ZIP file, the browser will load your applet's classes
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required to fetch applet code. As an added benefit, Netscape caches
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3. Figure out how to use JAR files. Here's what I've read: "JAR
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than
opening a new connection for each piece. This greatly improves the
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the
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Unfortunately, we've been unable to get any of these approaches to
work.
Has any one used these or other approaches to speed up applet
download
time? Or, does anyone know of consulting firms that specialize in
this
sort of thing?
Thanks in advance for your help.
Mike Nelson, Project Leader
Metrix, Inc.
[email protected]
414-798-8560 x1157
Billy L. Williams, Jr. | email: [email protected]
Sage Solutions, Inc. | Tel: (415) 392-7243 (x506) Fax: (415) 391-3899
| Pager: (415) 605-1791 (page me if urgent)

Hi Michael,
We have done exactly what you describe and have avoided the slow applet
download times. Although it can be a bit tricky, it is possible to use
the ORB bundled inside the Netscape 4.0 browser (Visibroker for Java by
Visigenic). Most of the code should follow Netscape's examples (on
http://developer.netscape.com)--just remember to initialize the ORB by
passing a reference to the current applet in orb_init() (so that you
invoke something like orb_init(this) [assuming you are extending
java.applet.Applet]). Pulling up the Java console within your web
browser should help debug quite a bit (a lot of debug messages will get
printed there the ORB is having problems).
Netscape has just implemented the applet caching schemes you describe,
so it probably shouldn't matter too much if you use another vendor's
ORB (we've done this with Iona's OrbixWeb). If you use ZIP files, they
have to be uncompressed, and I don't think that the browser will cache
them between browser sessions. Netscape 4.0 does seem to handle
compressed JAR files just fine and it does indeed cache them between
browser sessions. I'd go with the JAR format anyway since the ZIP
bundling was just a workaround until Sun got their act together in the
1.1 JDK.
By the way, you also might want to take advantage of the code-signing
and capabilities APIs of Netscape if you are going to invoke methods on
objects not resident on your web server. Otherwise, you will probably
run into the (in)famous browser applet security restrictions and you may
have other problems doing things like callbacks from Forte, etc.
If you want more detail on how it works, let me know and I can post some
examples.
Oh, one last thing: we are a consulting firm specializing in these kinds
of things :)
Bill
Subject: Java Applet IIOP Call-In with Release 3C--How do we speed up download time.
Date: Wed, 2 Jul 1997 09:10:31 -0500
From: Michael Nelson <[email protected]>
To: "'[email protected]'" <[email protected]>
We have successfully implemented a simple Java Applet that calls into
Forte Services via IIOP. However, the duration of the download time
for
Applet and its required class files is UNACCEPTABLE in a typical
INTERNET environment where 28.8K modems and multiple hops around the
net
are not uncommon. We dialed into our network at 28.8K (but no
hopping),
and found that download times varied from 1.5 - 2.0 minutes. This is
unacceptable, even by internet standards. We have been using the
Visigenic Visibroker product as the ORB.
After doing some investigation, we've come up with several ideas to
speed up download time:
1. Figure out how to use the Visigenic components (CORBA/IIOP class
files) that come bundled with the latest version of the Netscape
Navigator browser, so that they don't have to be downloaded
2. Figure out how to use ZIP files. Here's what I've read: "Since
the
introduction of Netscape Navigator 3.0, you can specify an
uncompressed
.zip file as an addition to the code base of your application. By
specifying a ZIP file, the browser will load your applet's classes
from
a specified ZIP file before it searches the code base. This ZIP can
improve applet download time by reducing the number of HTTP
connections
required to fetch applet code. As an added benefit, Netscape caches
the
single ZIP file so that it will not reload your applet unless the date
of the ZIP file has changed."
3. Figure out how to use JAR files. Here's what I've read: "JAR
stands for Java archive. It's a file format based on the popular ZIP
file format and is used for aggregating many files into one. Although
JAR can be used as a general archiving tool, the primary motivation
for
its development was so that Java applets and their requisite
components
can be downloaded to a browser in a single HTTP transaction, rather
than
opening a new connection for each piece. This greatly improves the
speed with which an applet can be loaded onto a web page and begin
functioning. The JAR format also supports compression, which reduces
the
size of the file and improves download time still further."
Unfortunately, we've been unable to get any of these approaches to
work.
Has any one used these or other approaches to speed up applet
download
time? Or, does anyone know of consulting firms that specialize in
this
sort of thing?
Thanks in advance for your help.
Mike Nelson, Project Leader
Metrix, Inc.
[email protected]
414-798-8560 x1157
Billy L. Williams, Jr. | email: [email protected]
Sage Solutions, Inc. | Tel: (415) 392-7243 (x506) Fax: (415) 391-3899
| Pager: (415) 605-1791 (page me if urgent)

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its development was so that Java applets and their requisite components
can be downloaded to a browser in a single HTTP transaction, rather than
opening a new connection for each piece. This greatly improves the
speed with which an applet can be loaded onto a web page and begin
functioning. The JAR format also supports compression, which reduces the
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time? Or, does anyone know of consulting firms that specialize in this
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Thanks in advance for your help.
Mike Nelson, Project Leader
Metrix, Inc.
[email protected]
414-798-8560 x1157

We have successfully implemented a simple Java Applet that calls into
Forte Services via IIOP. However, the duration of the download time for
Applet and its required class files is UNACCEPTABLE in a typical
INTERNET environment where 28.8K modems and multiple hops around the net
are not uncommon. We dialed into our network at 28.8K (but no hopping),
and found that download times varied from 1.5 - 2.0 minutes. This is
unacceptable, even by internet standards. We have been using the
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After doing some investigation, we've come up with several ideas to
speed up download time:
1. Figure out how to use the Visigenic components (CORBA/IIOP class
files) that come bundled with the latest version of the Netscape
Navigator browser, so that they don't have to be downloaded
2. Figure out how to use ZIP files. Here's what I've read: "Since the
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.zip file as an addition to the code base of your application. By
specifying a ZIP file, the browser will load your applet's classes from
a specified ZIP file before it searches the code base. This ZIP can
improve applet download time by reducing the number of HTTP connections
required to fetch applet code. As an added benefit, Netscape caches the
single ZIP file so that it will not reload your applet unless the date
of the ZIP file has changed."
3. Figure out how to use JAR files. Here's what I've read: "JAR
stands for Java archive. It's a file format based on the popular ZIP
file format and is used for aggregating many files into one. Although
JAR can be used as a general archiving tool, the primary motivation for
its development was so that Java applets and their requisite components
can be downloaded to a browser in a single HTTP transaction, rather than
opening a new connection for each piece. This greatly improves the
speed with which an applet can be loaded onto a web page and begin
functioning. The JAR format also supports compression, which reduces the
size of the file and improves download time still further."
Unfortunately, we've been unable to get any of these approaches to work.
Has any one used these or other approaches to speed up applet download
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sort of thing?
Thanks in advance for your help.
Mike Nelson, Project Leader
Metrix, Inc.
[email protected]
414-798-8560 x1157

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Acrobat forms (AcroForms) can access a printParams object which has several parameters, including printerName.
Here is an example: https://acrobat.com/#d=fzE2tPnpvftws68XwdjTtA
It is not much of a time saver as the user is still presented with the print dialogue. Please note that you cannot get it to print silently for security reasons (afaik).
I hope that helps,
Niall

Java Applets cannot work in IE when PAC file is in shared folder

I have a PAC file (proxy auto config) residing in a shared folder, i.e. \\fileserver\share\proxy.pac. My IE and firefox is configured to point to the PAC file. Java applet is working fine in Firefox but fails to run in IE.
From the Java console, the applet seems to be trying to access the internet via DIRECT connection. The applet works properly when I configured IE to point to a PAC file in a web server, ie http://webserver/proxy.pac or in the local drive, ie file://c:\proxy.pac. My objective is to configure IE to point to a PAC file in a shared folder and make it work. Can anyone help?
Below are the logs from both IE and Firefox Java Console (thrimed):
1) IE:
Java Plug-in 1.6.0_13
Using JRE version 1.6.0_13 Java HotSpot(TM) Client VM
User home directory = C:\Documents and Settings\xxx
network: No certificate info for unsigned JAR file: https://internet-banking.dbs.com.sg/IB/Login2.jar
network: Cache entry found [url: https://internet-banking.dbs.com.sg/IB/Login2.jar, version: null]
network: Connecting https://internet-banking.dbs.com.sg/IB/Login2.jar with proxy=DIRECT
network: CleanupThread used 299461 us
network: Connecting http://internet-banking.dbs.com.sg:443/ with proxy=DIRECT
network: Connecting https://internet-banking.dbs.com.sg/IB/Login2.jar with proxy=DIRECT
network: Connecting http://internet-banking.dbs.com.sg:443/ with proxy=DIRECT
java.net.ConnectException: Connection timed out: connect
     at java.net.PlainSocketImpl.socketConnect(Native Method)
     at java.net.PlainSocketImpl.doConnect(Unknown Source)
     at java.net.PlainSocketImpl.connectToAddress(Unknown Source)
     at java.net.PlainSocketImpl.connect(Unknown Source)
     at java.net.SocksSocketImpl.connect(Unknown Source)
     at java.net.Socket.connect(Unknown Source)
     at com.sun.net.ssl.internal.ssl.SSLSocketImpl.connect(Unknown Source)
     at sun.net.NetworkClient.doConnect(Unknown Source)
     at sun.net.www.http.HttpClient.openServer(Unknown Source)
     at sun.net.www.http.HttpClient.openServer(Unknown Source)
     at sun.net.www.protocol.https.HttpsClient.<init>(Unknown Source)
     at sun.net.www.protocol.https.HttpsClient.New(Unknown Source)
     at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(Unknown Source)
     at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
     at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
     at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
     at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(Unknown Source)
     at sun.plugin.PluginURLJarFileCallBack.downloadJAR(Unknown Source)
     at sun.plugin.PluginURLJarFileCallBack.access$000(Unknown Source)
     at sun.plugin.PluginURLJarFileCallBack$2.run(Unknown Source)
     at java.security.AccessController.doPrivileged(Native Method)
     at sun.plugin.PluginURLJarFileCallBack.retrieve(Unknown Source)
     at sun.net.www.protocol.jar.URLJarFile.retrieve(Unknown Source)
     at sun.net.www.protocol.jar.URLJarFile.getJarFile(Unknown Source)
     at sun.net.www.protocol.jar.JarFileFactory.get(Unknown Source)
     at sun.net.www.protocol.jar.JarURLConnection.connect(Unknown Source)
     at sun.plugin.net.protocol.jar.CachedJarURLConnection.connect(Unknown Source)
     at sun.plugin.net.protocol.jar.CachedJarURLConnection.getJarFileInternal(Unknown Source)
     at sun.plugin.net.protocol.jar.CachedJarURLConnection.getJarFile(Unknown Source)
     at sun.misc.URLClassPath$JarLoader.getJarFile(Unknown Source)
     at sun.misc.URLClassPath$JarLoader.access$600(Unknown Source)
     at sun.misc.URLClassPath$JarLoader$1.run(Unknown Source)
     at java.security.AccessController.doPrivileged(Native Method)
     at sun.misc.URLClassPath$JarLoader.ensureOpen(Unknown Source)
     at sun.misc.URLClassPath$JarLoader.<init>(Unknown Source)
     at sun.misc.URLClassPath$3.run(Unknown Source)
     at java.security.AccessController.doPrivileged(Native Method)
     at sun.misc.URLClassPath.getLoader(Unknown Source)
     at sun.misc.URLClassPath.getLoader(Unknown Source)
     at sun.misc.URLClassPath.getResource(Unknown Source)
     at sun.plugin2.applet.Plugin2ClassLoader$2.run(Unknown Source)
     at java.security.AccessController.doPrivileged(Native Method)
     at sun.plugin2.applet.Plugin2ClassLoader.findClassHelper(Unknown Source)
     at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source)
     at sun.plugin2.applet.Plugin2Manager.createApplet(Unknown Source)
     at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
network: Connecting https://internet-banking.dbs.com.sg/IB/Login2.jar with proxy=DIRECT
network: Connecting http://internet-banking.dbs.com.sg:443/ with proxy=DIRECT
2) Firefox:
Java Plug-in 1.6.0_13
Using JRE version 1.6.0_13 Java HotSpot(TM) Client VM
User home directory = C:\Documents and Settings\xxx
network: No certificate info for unsigned JAR file: https://internet-banking.dbs.com.sg/IB/Login2.jar
network: Cache entry found [url: https://internet-banking.dbs.com.sg/IB/Login2.jar, version: null]
network: Connecting https://internet-banking.dbs.com.sg/IB/Login2.jar with proxy=HTTP @ mocwsg01.m1.com.sg/10.33.90.91:8080
network: CleanupThread used 306588 us
security: Loading Root CA certificates from C:\Program Files\Java\jre6\lib\security\cacerts
security: Loaded Root CA certificates from C:\Program Files\Java\jre6\lib\security\cacerts
security: Loading SSL Root CA certificates from C:\Program Files\Java\jre6\lib\security\cacerts
security: Loaded SSL Root CA certificates from C:\Program Files\Java\jre6\lib\security\cacerts
security: Loading Deployment SSL certificates from C:\Documents and Settings\xxx\Application Data\Sun\Java\Deployment\security\trusted.jssecerts
security: Loaded Deployment SSL certificates from C:\Documents and Settings\xxx\Application Data\Sun\Java\Deployment\security\trusted.jssecerts
security: Loading certificates from Deployment session certificate store
security: Loaded certificates from Deployment session certificate store
security: Checking if certificate is in Deployment denied certificate store
network: ResponseCode for https://internet-banking.dbs.com.sg/IB/Login2.jar : 200
network: Encoding for https://internet-banking.dbs.com.sg/IB/Login2.jar : null
network: Disconnect connection to https://internet-banking.dbs.com.sg/IB/Login2.jar
basic: Applet loaded.
basic: Applet resized and added to parent container
basic: PERF: AppletExecutionRunnable - applet.init() BEGIN ; jvmLaunch dt 1677884 us, pluginInit dt 1844261 us, TotalTime: 3522145 us
basic: Applet initialized
basic: Removed progress listener: sun.plugin.util.GrayBoxPainter$GrayBoxProgressListener@15ee671
basic: Applet made visible
basic: Starting applet
basic: Applet started
basic: Told clients applet is started

Did you ever resolve this issue ? We have recently moved from a http based pac file to using file://netlogon share/proxy.pac. Recievng similar errors as you describe with various applets. Seems to work ok when using the same pac file launched by http rather than file. Seems to be various BUG's marginally related to similar issues but nothing to confirm that its a real problem.
Be great if anyone has an answer to this.
Thanks

HP C309a All in one Printer - Problems with printing documents the correct size.

Hi I recently purchased an HP 309a as a replacement for an EPSON printer which had to be replaced a couple of times so I thought I would change manufacturer.
The HP printer prints well in post places but when I print from Excel on an A4 scale it only prints 3/4 size on an A4 page. I tried everything to get it to print the correct size. I have adjusted the settings to scale to A4, print boderless etc and it just will not print correctly.
It seems to be ok in Word and many other programs so I don't know why there is an issue with Excel. Iam I missing something, please help.
Also is there any way to default the printer to A4 automatically instead of 8" x 11".

I also have issues using this printer with Excel/ Word.
When I am using Excel or Word I have to remove the HP 309a as my default printer.
when set as default, excel and word just "hang" for up to 3 minutes when opening or saving.
I called HP who said the printer works with all other files so basically it's tough. One of their tech guys tried to sort it out but couldn't.
Has anyone else had this same problem? If so, how was it resolved?
£300 for a printer that doesn't work with MS. It's not funny and I won't buy HP product again.

HP 4622 All in One Printer: Problem with Printer or Ink System

Problem with Printer or Ink System Error OXC19a0027.

charleshia wrote:
Thanks so much for replying to my post. I tried the fist suggestions and they did not work. So, I attempted to move on Dow to the cleaning of my printer. I am the the first to admit that I'm not the genius when it come to electronics buys, my printer do not seem to have what is described in the photos. I'd like to upload a photo of my ink cartage but do not know how.
Charleshia, you can upload a photo here to reply. Click Reply, then on the window you'll see the image below..
click the one which has the red box, it's where you insert the photo
Going back on your issue.. the basic step would be.. take out the inks then close the door... what error message you got? If it's saying "Missing Ink Cartridge" just hit OK. Unplug the power cable at back of the printer, plug it back in.. Clean the copper contacts on the ink cartridges using a lint free cloth then reinstall them. Let me know if it resolved it or not.. I can only give basic troubleshooting here

Signed java applet is very slow with 1.4.2_06

We have an application which has a signed jar applets was working fine with Java Plug-in (JPI) version 1.4.1_02.
Due to customer requirement they want to run the same applet with JPI version 1.4.2_06, After JPI upgrade the applet is running slow.
I am not sure what sun has changed the security settings in 1.4.2_06. So, Can some one give there thoughts on why would it run slow because of JPI changes.
Thanks in advance.
Aj

Hi,
It is nothing to do with Signed applet.
If URL Connection 's setDefaultCacheUses is set to false then this is causing to run the Applet slow. As it require to download complete jar(if any) everytime.
From 1.4.1_02 (CachedJarURLConnection.class in jaws.jar):
public void connect()
throws IOException
if(!connected)
jarFile = JarCache.get(jarFileURL);
if(jarFile != null)
{�.
From 1.4.2_06 (CachedJarURLConnection.class in plugin.jar):
public void connect()
throws IOException
if(!connected)
if(getUseCaches())
jarFile = JarCache.get(jarFileURL);
if(jarFile != null)
{�

What are the limitations of Java,what cannot be done with Java?

Hello.I want to ask, is there anything which cannot be done with Java related to computer programming ,does Java have limitations?

BIJ001 wrote:
You need a JVM to run Java applications.Usually yes but nothing prevents you from writing a compiler to compile Java sources right into native code.@Everyone: Sorry folks, I meant to say "Never say unequivocally that something cannot be done. Time will more than likely prove you wrong."... which I think you all got the gist off, despite what I actually said.
@BIJ: Hmmm yep, so that sort-of brings writing a device driver in the Java language into the realms of practicality, except you'd still have to work-around the fact that Java is by design a device/OS idependant language, so one suspects that you'd probably end-up using to JNI to call a large and complex library of assembler (or something) functions, which actually do the work... hence you'd probably be better of in assembler, C, or indeed any "native" language, or combination thereof.
Java excels at writing "large and complex business systems". Java pretty much sucks at writing "low-level CS stuff", which C (and assembler) both excel at... Hence some knowledge of both helps you pick the tool for the task, and create "complementary" layers of abstraction in your application, which (the theory goes) make it robust and flexible.
I do think that it's interesting that Java excels in exactly the places where C is/was "undercooked".... I do sometimes wonder if that was by design; like the language designers intended them to be complementary tools or something.
Cheers. Keith.

HP Printer problems with printing in one ink colour

My printer is only printing in a single colour, which is Red.

Hey , Thanks for posting in the HP Support Forum. I see that you're encountering a print quality issue with your HP printer. I would like to help. In order to provide the most relevant information I need to know which printer model you're working with. When I search 'J250 Series Printer' on our website it brings up several different models. Please clarify this information and I'll be sure to reply with steps you can try. Thanks,

No sound in java applets in 32bit firefox with bin32-jre plugin.

I got sound in flash, but not in java applets. Is this a known issue? Any workarounds?

I should probably make a wiki article (or ad to the Java wiki article) about this, since it seems to come up quite often (especially on Ubuntu forums, actually). The only good solution I've found is to use Pulseaudio, and rename the java executable to java.bin, and make a script called java in the same folder, and put this in the script:
#!/bin/sh
padsp /opt/java/jre/bin/java.bin "$@"
By the way, the path to the java executable is /opt/java/jre/bin/ I've tried using the same method with plain ALSA by using aoss, and it works sorta, but it causes random crashes of Java, so that's a no go, have to use Pulse.

Bug: Java applet cannot print, even with print permission granted.

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