Processing generation for openGL applet with JRE 6u21 and next : KO

yelele_br..

Re: Is JRE 6 update 21 working with processing applet ?

3 years ago

It's seem that only openGL applet using JNLPAppletLauncher doesnt works with JRE 6 update 21

java.lang.ClassNotFoundException: myClass
    at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
    at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)
    at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
    at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Unknown Source)
    at org.jdesktop.applet.util.JNLPAppletLauncher.startSubApplet(JNLPAppletLauncher.java:1914)
    at org.jdesktop.applet.util.JNLPAppletLauncher.access$200(JNLPAppletLauncher.java:658)
    at org.jdesktop.applet.util.JNLPAppletLauncher$5.run(JNLPAppletLauncher.java:1269)
    at java.awt.event.InvocationEvent.dispatch(Unknown Source)
    at java.awt.EventQueue.dispatchEvent(Unknown Source)
    (...)

niffnaff

Re: Is JRE 6 update 21 working with processing applet ?

3 years ago

It seems to be, that the JLNPAppletLauncher doesnt support direct JARs any more in J6u21.
I created a workaround for me, using a jnlp file. attention: all jars have to be signed!
this is the spacejunk example:

at the html:

<applet codebase="." code="SpaceJunk" width="1024" height="768" align="middle">
<param name="jnlp_href" value="spacejunk.jnlp"></applet>

at the jnlp

<?xml version="1.0" encoding="UTF-8"?>
<jnlp spec="6.0+"
codebase=""
href="spacejunk.jnlp">
    <information>
        <title>Space</title>
        <vendor>Stefan</vendor>
        <homepage href="http://www.inf.tu-dresden.de"/>
        <description>Dings</description>
        
    </information>
    <security>
    <all-permissions/>
    </security>
     <update check="always" policy="always"/>
    <resources>
        <j2se version="1.4+"/>
        <jar
            href="spacejunk.jar"
            main="true"/>
        <extension
            name="jogl"
            href="http://download.java.net/media/jogl/builds/archive/jsr-231-webstart-current/jogl.jnlp" />
        <jar
            href="core.jar"/>
        <jar
            href="opengl.jar"/>
        <property name="sun.awt.noerasebackground" value="true"/>
        <property name="sun.awt.erasebackgroundonresize" value="true"/>
        <property name="sun.java2d.noddraw" value="true"/>
    </resources>
    <applet-desc
        main-class="SpaceJunk"
        name="SpaceJunk"
        width="1024"
        height="768">
    </applet-desc>
</jnlp>

yelele_br..

Re: Is JRE 6 update 21 working with processing applet ?

3 years ago

Thanks but it's not a direct load, isn't it ? A dialog box is lanching before applet and it's not quite friendly for users...

If i really don't find another way i'll use this way too.

niffnaff

Re: Is JRE 6 update 21 working with processing applet ?

3 years ago

no, you are right. another solution might be, to use the jogamp appletloader.
For me, this would cause to much modification of my code.

yelele_br..

Re: Direct call to openGL applet with JRE 6 update 21 and next

2 years ago

A bug was submitted here ... still not fix

yelele_br..

Re: Processing generation for openGL applet with JRE 6u21 and next : KO

2 years ago

Not yet fix... in processing export

But i try the applet call with jnlp file and signed jar files, like described by niffnaff and it works on local... But some modifications must be done when the applet is online.

The JNLP file must be in xml strict syntax ... so, you have to add a space before the end xml tag

Example :

...
<update check="always" policy="always" />
instead of
<update check="always" policy="always"/>
...

So my old applets work again :

" Reggae Trip", " Reggae Trip II" and " Rain on the sea"

PhiLho

Re: Processing generation for openGL applet with JRE 6u21 and next : KO

2 years ago

To my knowledge, adding a space before the ending slash isn't "xml strict syntax", it is a kludge invented to allow old Netscape browsers (Navigator) to understand XHTML.. Strict syntax just doesn't use space there. So I would call this trick a kludge. I am surprised it works, but the tip is valuable.

yelele_br..

Re: Processing generation for openGL applet with JRE 6u21 and next : KO

2 years ago

You're right ... I finally try to delete these spaces and ... it works.

So the jnlp model given by NiffNaff is good : opengl applet run.

Sorry for the error.

brunoimbr..

Re: Processing generation for openGL applet with JRE 6u21 and next : KO

2 years ago

I just tried yelele_brother's applets an none worked. JRE 6u26.

One of them fired this error:

exception: Found unsigned entry in resource: http://download.java.net/media/jogl/builds/archive/jsr-231-1.x-webstart-current/jogl.jar.

com.sun.deploy.net.JARSigningException: Found unsigned entry in resource: http://download.java.net/media/jogl/builds/archive/jsr-231-1.x-webstart-current/jogl.jar ...

And the other two:

exception: JAR resources in JNLP file are not signed by same certificate.

JNLPException[category: Launch File Error : Exception: null : LaunchDesc ...

Is this solution still working for you?

niffnaff

Re: Re: Processing generation for openGL applet with JRE 6u21 and next : KO

2 years ago

Hi brunoimbrizi.

actually I dont know if this still works. This was a issue one year ago. but all jars (including jogl. processing etc) had to be signed with the same certificate. I used a ANT script to itterate through all jars and sign them.

Greetings
niffnaff

brunoimbr..

Re: Processing generation for openGL applet with JRE 6u21 and next : KO

2 years ago

Hi niffnaff,

I think it's not just a matter of signing all .jar files any more. I'm on Windows JRE 6u26 and I've tried many different ways of publishing an applet which uses the OPENGL renderer without success.

I managed to get it working once, by exporting the applet using Processing 2.0a1 and replacing the html <applet> tag by the one in this example:
http://jogamp.org/deployment/jogamp-current/jogl-demos/applet-gears.html

It worked, but unfortunately the ControlP5 components didn't render correctly and they kept firing errors to the console.

So, if you want to export some applets with OPENGL, my best guess now is to wait for Processing 2.0 and consequent library updates. Please let me know if I'm wrong.

Cheers.

andres

Re: Processing generation for openGL applet with JRE 6u21 and next : KO

2 years ago

Hi, I started to look at applet loading problem in Processing 2.

For 1.5.1, the only way I found to run opengl applets generated with that version was to use my own signed versions of the jogl and gluegen-rt jars. These are the steps I followed (you will need a web server to host your own signed copies of jogl and gluegen-rt and the jnlp files instead of using the ones from java.net):

1) Download the jar files (jogl.jar, jogl-native, gluegen-rt, gluegen-rt-native) and jogl.jnlp from http://download.java.net/media/jogl/builds/archive/jsr-231-webstart-current/, gluegen-rt.jnlp from http://download.java.net/media/gluegen/webstart/, and applet-launcher.jar from http://download.java.net/media/applet-launcher/

2) Sign all the downloaded jar files:

keytool -genkey -keystore joglKeyStore -alias codeanticode

keytool -selfcert -keystore joglKeyStore -alias codeanticode

jarsigner -keystore joglKeyStore gluegen-rt.jar codeanticode

...

3) In gluegen-rt.jnlp, replace the codebase "http://download.java.net/media/gluegen/webstart/" with the location in the server where you will upload your jar files.

4) Similarly, replace codebase in jogl.jnlp with the new location, and also set the href argument of the <extension name="gluegen-rt" > tag to the appropriate value.

5) Upload all the signed jar and the modified jnlp files to the web server.

6) Export the sketch as an applet from the PDE.

7) Edit the index.html file in the applet folder so that all the remote locations ( http://download.java.net/media/applet-launcher/, http://download.java.net/media/jogl/builds/archive/jsr-231-webstart-current, http://download.java.net/media/gluegen/webstart) are replaced by the new location with the signed jars

I was able to run the exported applets on Windows using IE, Firefox and Chrome, with the 6u27 version of the JRE. On OSX, the applets successfully load all the jars, but just display a white screen, with no error being shown in the java console, so not sure what is going on there. On Linux, I didn't have the time to try it out :-)

Anyways, this is just a possible workaround for people who need to run opengl applets right now using 1.51. For Processing 2.0 please have some more patience and I will update when this bug is finally closed.

yelele_br..

Re: Re: Processing generation for openGL applet with JRE 6u21 and next : KO

1 years ago

Thanks a lot

for you step by step help : it's working

So my opengl stuff work again online :

Rain on the sea

Reggae trip I

Reggae trip II

(still waiting for processing 2.0 because it's not so easy to publish opengl applet <|;-)

niffnaff

Re: Processing generation for openGL applet with JRE 6u21 and next : KO

2 years ago

hi andres,

I use an ANT script to compile and sign all in one flush.
ANT allows also to modify the jnlp and html (template) file.

brunoimbr..

Re: Processing generation for openGL applet with JRE 6u21 and next : KO

2 years ago

Thank you for the steps, andres.
My sketch is now working on Windows and got the same behavior you mentioned on OSX.
In case you want to give it a try: http://brunoimbrizi.com/lab/p5/sketch_oct05b/

andres

Re: Processing generation for openGL applet with JRE 6u21 and next : KO

1 years ago

Yes, I can run your sketch from a browser in windows.

On OSX, everything apparently loads up, but the applet area remains white. This is what appears in the java console:

JNLPAppletLauncher: static initializer

os.name = mac os x

nativePrefix = lib nativeSuffix = .jnilib

tmpRootDir = /var/folders/Qx/QxzSOfOLHz0jeeb3bP1+KE+++TI/-Tmp-/jnlp-applet/jln2557275806890800442

Applet.init

subapplet.classname = sketch_oct05b

subapplet.displayname = sketch_oct05b

Applet.start

os.name = mac os x

os.arch = x86_64

processNativeJar: using previously cached: /Users/andres/.jnlp-applet/cache/brunoimbrizi_com/5927badc07b7133d10134132df65d0ea3c4be06c/gluegen-rt-natives-macosx-universal.jar

validateCertificates:

VALIDATE: libgluegen-rt.jnilib

extractNativeLibs:

EXTRACT: libgluegen-rt.jnilib(gluegen-rt)

processNativeJar: using previously cached: /Users/andres/.jnlp-applet/cache/brunoimbrizi_com/5927badc07b7133d10134132df65d0ea3c4be06c/jogl-natives-macosx-universal.jar

validateCertificates:

VALIDATE: libjogl.jnilib

VALIDATE: libjogl_awt.jnilib

VALIDATE: libjogl_cg.jnilib

extractNativeLibs:

EXTRACT: libjogl.jnilib(jogl)

EXTRACT: libjogl_awt.jnilib(jogl_awt)

EXTRACT: libjogl_cg.jnilib(jogl_cg)

JNLPAppletLauncher.loadLibrary("jogl")

loading: /var/folders/Qx/QxzSOfOLHz0jeeb3bP1+KE+++TI/-Tmp-/jnlp-applet/jln2557275806890800442/jln673562900668358506/libjogl.jnilib

JNLPAppletLauncher.loadLibrary("jogl_awt")

loading: /var/folders/Qx/QxzSOfOLHz0jeeb3bP1+KE+++TI/-Tmp-/jnlp-applet/jln2557275806890800442/jln673562900668358506/libjogl_awt.jnilib

Java Plug-in 1.6.0_26

Using JRE version 1.6.0_26-b03-384-10M3425 Java HotSpot(TM) 64-Bit Server VM

User home directory = /Users/andresControlP5 0.5.4 infos, comments, questions at http://www.sojamo.de/libraries/controlP5

So I'm puzzled by this.

gennarose..

Re: Re: Processing generation for openGL applet with JRE 6u21 and next : KO

1 year ago

hello All,

I was wondering if there has been any progress on this issue,

following Andres's steps I was only able to run applets that use OPENGL in windows but not on linux or osx

any progress or alternatives ? perhaps processing 2 with the new version of opengl will completely solve this issue ?

there was a comment that mentioned the possibility of using an ANT script to compile and sign all in one flush....

I guess we are all using some version of eclipse with reference to processing, could someone provide an example for the ant script (or some useful reference) that could work with this setting ?

andres

Re: Processing generation for openGL applet with JRE 6u21 and next : KO

1 year ago

This will be hopefully solved in Processing 2. Right now I'm working on other aspects of the opengl renderer, but will look at this again once I update the JOGL bindings.

almost_sc..

Re: Re: Processing generation for openGL applet with JRE 6u21 and next : KO

1 year ago

Hi,

I'm wondering what the current status of opengl, apples are pde2.0 is? I've read this thread and these two issues: 845 and 429.

I'm trying to export an applet that uses PeasyCam, ControlP5 and OpenGL and having a rough go at it.

I've tried exporting under 2.0a4 and can get as far as this error from the Java console:

This is after switching the link to jogl-core.jnlp in index.html.

java.io.IOException: Cannot validate certificate for libnativewindow_jvm.jnilib

at org.jdesktop.applet.util.JNLPAppletLauncher.validateCertificates(JNLPAppletLauncher.java:1870)

at org.jdesktop.applet.util.JNLPAppletLauncher.processNativeJar(JNLPAppletLauncher.java:1634)

at org.jdesktop.applet.util.JNLPAppletLauncher.initResources(JNLPAppletLauncher.java:1405)

at org.jdesktop.applet.util.JNLPAppletLauncher.initAndStartApplet(JNLPAppletLauncher.java:1309)

at org.jdesktop.applet.util.JNLPAppletLauncher.access$000(JNLPAppletLauncher.java:661)

at org.jdesktop.applet.util.JNLPAppletLauncher$1.run(JNLPAppletLauncher.java:910)

Another problem I'm having is getting ControlP5 and PEasyCam to work well together. I've read this thread. But I keep getting a nullpointerexception when I call controlP5.draw();

Any help on guidance on either of these issues would be great.

Thanks so much!

gennarose..

Re: Processing generation for openGL applet with JRE 6u21 and next : KO

1 year ago

many thanks Andres for leeting us know,

looking forward