Tomcat calling weblogic applet

Does anyone know how to get by this exception. java.security.AccessControlException:
access denied (java.net.SocketPermission ) I'm running a web app that calls
an applet sitting on weblogic 6.1. Whenever I try to call it, it gives me the
socketPermission error. What do I have to do to get by this?
Thanks

I have managed to do this, but perhaps the way I have done it is a bit long-winded and there may be an easier (better) way. Also, note that this method is for applets on the same web site only.
The answer lies in Javascript, where a Javascript method can call an Applet method. Therefore, if one applet can communicate with the web-page via Javascript, then any other applets on that page can communicate with any other applets there.
This is an example piece of Javascript code to show u what I mean:
function callAppletMethod()
var str = window.parent.VerifyApp.check();
etc...
}Here, the variable 'str' gains the value returned by the method 'check()' in the applet called VerifyApp.
There is other ways to communicate between applets and Javascript, but I think they are for Netscape Navigator browsers only.
Anyway, hope that helps.

Similar Messages

Calling an Applet from a JSP

          Hi,
          I need help with this, I want to invoke an applet from a JSP page. The applet code
          is compiled and resides in a separate jar file. The question is, how do I deploy
          this applet in weblogic 6.1 and then have a JSP call this applet.
          --Krish.


To call an applet from a jsp use the <jsp:plugin> tag
          <jsp:plugin
          type="applet"
          code="classFileName"
          codebase="classFileDirectoryName"
          [ align="bottom|top|middle|left|right" ]
          [ height="{displayPixels | <%= expression %>}"]
          [ width="{displayPixels | <%= expression %>}"]
          [ hspace="leftRightPixels" ]
          [ vspace="topBottomPixels" ]
          </jsp:plugin>
          Krish Khambadkone wrote:
          > Hi,
          >
          > I need help with this, I want to invoke an applet from a JSP page. The applet code
          > is compiled and resides in a separate jar file. The question is, how do I deploy
          > this applet in weblogic 6.1 and then have a JSP call this applet.
          >
          > --Krish.

Virus scan failed Error on deploying a web application having a jar file for calling the applet on the jsp page

Hi,
I have an applet application that i want to deploy on the Oracle cloud.
So i have created a jar file for the applet application and i am using this jar to call the applet on a jsp page.
But when i am delpoying my application on the java cloud, its giving me the below error:
2014-10-28 03:16:41 CDT: Starting action "Virus Scan"
2014-10-28 03:16:41 CDT: Virus Scan started
2014-10-28 03:16:49 CDT: ----------------------------------------------------------------------
2014-10-28 03:16:49 CDT: File Scanned: "Application7.ear".
2014-10-28 03:16:49 CDT: File Size: "106698122".
2014-10-28 03:16:49 CDT: File Status: "INFECTED".
2014-10-28 03:16:49 CDT: ----------------------------------------------------------------------
2014-10-28 03:16:49 CDT: Virus scan failed.
2014-10-28 03:16:49 CDT: "Virus Scan" complete: status FAILED
Can't we deploy any application having applet or swing component's onto the cloud?
Or do we need to request for any extra permissions for the same?
Thanks,
Manoj

I don't see applets mentioned in the supported features nor in the unsupported features so not sure if they are supported you would likely need to contact the operations team to confirm.
Jani Rautiainen
Fusion Applications Developer Relations
https://blogs.oracle.com/fadevrel/

How to call an applet from a first applet

Hi,
I need to call an applet from a first applet, but I want that the called applet doesn't execute in the same AppletContext than the first one, is it possible?
If it is, what is the solution?
Thanks

Yes, it is possible. One way would be to use static variables.
class A1 extends Applet
   public static A2 TheOther;
   public A1()
      A2.TheOther = this;
   public void callA2()
      TheOther.doSomething();
class A2 extends Applet
   public static A1 TheOther;
   public A2()
      A1.TheOther = this;
   public void doSomething()

Help: I'm sure it is a Bug in JNI calling WebLogic EJB

Help me! I'm using jni to call weblogic EJB from a Com+ component,here is the code:
// This is the main project file for VC++ application project
// generated using an Application Wizard.
#include "stdafx.h"
#pragma unmanaged
#include <windows.h>
#include <jni.h>
#include <process.h>
#include <stdio.h>
#define USER_CLASSPATH "C:\\myClasses;C:\\j2sdk1.4.0\\lib\\tools.jar;Z:\\wlserver6.1\\lib\\weblogic.jar;"
/* where Prog.class is */
JavaVM *jvm;
* Function GetJNIEnv(void) returns the java environment pointer
* in case we are executing on a thread other than the one the
* jvm was created on.
JNIEnv* GetJNIEnv(void){
     JNIEnv *env = NULL;
     jint nRet = jvm->GetEnv((void **)&env, JNI_VERSION_1_2);
     if(nRet == JNI_EDETACHED){
          jvm->AttachCurrentThread((void **)&env, NULL);
     return env;
* Function DoJNDI(void *arg) uses the Java Invocation API to
* execute the following Java code:
* Hashtable prop = new Hashtable();
* prop.put(Context.INITIAL_CONTEXT_FACTORY, "weblogic.jndi.WLInitialContextFactory"
* prop.put( Context.PROVIDER_URL, "t3://192.168.40.137:7001" );
* ctxInitial = new InitialDirContext( prop );
void DoJNDI(void *arg){
     jclass clsHash, clsInitDirCx;
     jmethodID mHashInit, mHashPut, mInitDirCxInit;
     jobject objHash, objInitDirCx;
     JNIEnv *env = GetJNIEnv(); // Get the environment if on a different thread
     clsHash = env->FindClass("java/util/Hashtable");
     mHashInit = env->GetMethodID(clsHash, "<init>", "()V");
     objHash = env->NewObject(clsHash, mHashInit);
     mHashPut = env->GetMethodID(clsHash, "put", "(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;");
     jstring jstrICxFactoryPut = env->NewStringUTF("java.naming.factory.initial");
     jstring jstrICxFactoryVal = env->NewStringUTF("weblogic.jndi.WLInitialContextFactory");
     env->CallObjectMethod(objHash, mHashPut, jstrICxFactoryPut,jstrICxFactoryVal);
     jstring jstrProviderUrlPut = env->NewStringUTF("java.naming.provider.url");
     jstring jstrProviderUrlVal = env->NewStringUTF("t3://192.168.40.137:7001");
     env->CallObjectMethod(objHash, mHashPut, jstrProviderUrlPut,jstrProviderUrlVal);
     clsInitDirCx = env->FindClass("javax/naming/InitialContext");
     mInitDirCxInit = env->GetMethodID(clsInitDirCx, "<init>", "(Ljava/util/Hashtable;)V");
     objInitDirCx = env->NewObject(clsInitDirCx, mInitDirCxInit, objHash);
     if(objInitDirCx == NULL){
          printf("%s test FAILED:\n\n", (char*)arg);
     else{
          printf("%s test PASSED\n\n", (char*)arg);
     jvm->DetachCurrentThread();
* Function main(void) creates a JVM, and calls DoJNDI twice:
* Once as a regular function call, and once as a spun off thread.
void main() {
JavaVMInitArgs vm_args;
JavaVMOption options[5];
     options[0].optionString = "-client";
options[1].optionString =
"-cp " USER_CLASSPATH;
options[2].optionString =
"-Djava.class.path=" USER_CLASSPATH;
     //options[3].optionString =
     //     "-Xbootclasspath:c:\\j2sdk1.4.0\\lib\\tools.jar;z:\\wlserver6.1\\lib\\weblogic_sp.jar;z:\\wlserver6.1\\lib\\weblogic.jar;";
     options[3].optionString =
          "-Xbootclasspath/a:c:\\j2sdk1.4.0\\lib\\tools.jar;z:\\wlserver6.1\\lib\\weblogic_sp.jar;";
     options[4].optionString =
          "-Xbootclasspath/p:c:\\j2sdk1.4.0\\lib\\tools.jar;z:\\wlserver6.1\\lib\\weblogic_sp.jar;";
vm_args.version = 0x00010002;
vm_args.options = options;
vm_args.nOptions = 5;
vm_args.ignoreUnrecognized = JNI_TRUE;
     JNIEnv *env;
     jint res = JNI_CreateJavaVM(&jvm, (void**)&env, &vm_args);
     // *** Make the magic calls! (Both lines should do the same thing) ***
     DoJNDI((void*)"Function call");
     _beginthread(DoJNDI,0,(void *)"Thread call");
     /* wait for thread(s) to finish */
     Sleep(5000);
     jvm->DestroyJavaVM();
But it always send me a Exception like below:
javax.naming.NoInitialContextException: Cannot instantiate class: weblogic.jndi.WLInitialContextFactory.
Root exception is java.lang.ClassNotFoundException: weblogic/jndi/WLInitialContextFactory
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:207)
at com.sun.naming.internal.VersionHelper12.loadClass(VersionHelper12.java:42)
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:649)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:243)
at javax.naming.InitialContext.init(InitialContext.java:219)
at javax.naming.InitialContext.<init>(InitialContext.java:195)
when I search this problem in java.sun.com,an article announce that it is a bug that
JNDI not support multi-threads call,and it is fixed is JDK1.4 beta. The link is:
http://developer.java.sun.com/developer/bugParade/bugs/4307751.html
It seems that weblogic's JNDI is not support multi-thread call. what can i do?

Try adding the following code before instantiating your initial context:
Thread.currentThread().setContextClassLoader( ClassLoader.getSystemClassLoader()
This fixed the problem for me.
-Brian
"Edward Lu" <[email protected]> wrote:
>
Help me! I'm using jni to call weblogic EJB from a Com+ component,here is
the code:
// This is the main project file for VC++ application project
// generated using an Application Wizard.
#include "stdafx.h"
#pragma unmanaged
#include <windows.h>
#include <jni.h>
#include <process.h>
#include <stdio.h>
#define USER_CLASSPATH "C:\\myClasses;C:\\j2sdk1.4.0\\lib\\tools.jar;Z:\\wlserver6.1\\lib\\weblogic.jar;"
/* where Prog.class is */
JavaVM *jvm;
* Function GetJNIEnv(void) returns the java environment pointer
* in case we are executing on a thread other than the one the
* jvm was created on.
JNIEnv* GetJNIEnv(void){
     JNIEnv *env = NULL;
     jint nRet = jvm->GetEnv((void **)&env, JNI_VERSION_1_2);
     if(nRet == JNI_EDETACHED){
          jvm->AttachCurrentThread((void **)&env, NULL);
     return env;
* Function DoJNDI(void *arg) uses the Java Invocation API to
* execute the following Java code:
* Hashtable prop = new Hashtable();
* prop.put(Context.INITIAL_CONTEXT_FACTORY, "weblogic.jndi.WLInitialContextFactory"
* prop.put( Context.PROVIDER_URL, "t3://192.168.40.137:7001" );
* ctxInitial = new InitialDirContext( prop );
void DoJNDI(void *arg){
     jclass clsHash, clsInitDirCx;
     jmethodID mHashInit, mHashPut, mInitDirCxInit;
     jobject objHash, objInitDirCx;
     JNIEnv *env = GetJNIEnv(); // Get the environment if on a different thread
     clsHash = env->FindClass("java/util/Hashtable");
     mHashInit = env->GetMethodID(clsHash, "<init>", "()V");
     objHash = env->NewObject(clsHash, mHashInit);
     mHashPut = env->GetMethodID(clsHash, "put", "(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;");
     jstring jstrICxFactoryPut = env->NewStringUTF("java.naming.factory.initial");
     jstring jstrICxFactoryVal = env->NewStringUTF("weblogic.jndi.WLInitialContextFactory");
     env->CallObjectMethod(objHash, mHashPut, jstrICxFactoryPut,jstrICxFactoryVal);
     jstring jstrProviderUrlPut = env->NewStringUTF("java.naming.provider.url");
     jstring jstrProviderUrlVal = env->NewStringUTF("t3://192.168.40.137:7001");
     env->CallObjectMethod(objHash, mHashPut, jstrProviderUrlPut,jstrProviderUrlVal);
     clsInitDirCx = env->FindClass("javax/naming/InitialContext");
     mInitDirCxInit = env->GetMethodID(clsInitDirCx, "<init>", "(Ljava/util/Hashtable;)V");
     objInitDirCx = env->NewObject(clsInitDirCx, mInitDirCxInit, objHash);
     if(objInitDirCx == NULL){
          printf("%s test FAILED:\n\n", (char*)arg);
     else{
          printf("%s test PASSED\n\n", (char*)arg);
     jvm->DetachCurrentThread();
* Function main(void) creates a JVM, and calls DoJNDI twice:
* Once as a regular function call, and once as a spun off thread.
void main() {
JavaVMInitArgs vm_args;
JavaVMOption options[5];
     options[0].optionString = "-client";
options[1].optionString =
"-cp " USER_CLASSPATH;
options[2].optionString =
"-Djava.class.path=" USER_CLASSPATH;
     //options[3].optionString =
     //     "-Xbootclasspath:c:\\j2sdk1.4.0\\lib\\tools.jar;z:\\wlserver6.1\\lib\\weblogic_sp.jar;z:\\wlserver6.1\\lib\\weblogic.jar;";
     options[3].optionString =
          "-Xbootclasspath/a:c:\\j2sdk1.4.0\\lib\\tools.jar;z:\\wlserver6.1\\lib\\weblogic_sp.jar;";
     options[4].optionString =
          "-Xbootclasspath/p:c:\\j2sdk1.4.0\\lib\\tools.jar;z:\\wlserver6.1\\lib\\weblogic_sp.jar;";
vm_args.version = 0x00010002;
vm_args.options = options;
vm_args.nOptions = 5;
vm_args.ignoreUnrecognized = JNI_TRUE;
     JNIEnv *env;
     jint res = JNI_CreateJavaVM(&jvm, (void**)&env, &vm_args);
     // *** Make the magic calls! (Both lines should do the same thing) ***
     DoJNDI((void*)"Function call");
     _beginthread(DoJNDI,0,(void *)"Thread call");
     /* wait for thread(s) to finish */
     Sleep(5000);
     jvm->DestroyJavaVM();
But it always send me a Exception like below:
javax.naming.NoInitialContextException: Cannot instantiate class: weblogic.jndi.WLInitialContextFactory.
Root exception is java.lang.ClassNotFoundException: weblogic/jndi/WLInitialContextFactory
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:207)
at com.sun.naming.internal.VersionHelper12.loadClass(VersionHelper12.java:42)
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:649)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:243)
at javax.naming.InitialContext.init(InitialContext.java:219)
at javax.naming.InitialContext.<init>(InitialContext.java:195)
when I search this problem in java.sun.com,an article announce that it is
a bug that
JNDI not support multi-threads call,and it is fixed is JDK1.4 beta. The
link is:
http://developer.java.sun.com/developer/bugParade/bugs/4307751.html
It seems that weblogic's JNDI is not support multi-thread call. what can
i do?

Can call an applet method directly in javascript?

I want to call an applet method directly in javascript
as the following format:
function test()
ret_val = document.myapplet.mymethod();
myapplet is the applet name,mymethod is a
public method in applet and it returns a string
result,can that works?
//thx

Hi , i know that that is possible, i dont have the example right here just wait until tomorrow at the morning and i sent it to you , please send me a email to remaind me the code
[email protected]

Calling Java Applet from application express demo

Hi,
i found many topics about calling java applets in/from application express,
but I need a demo to learn how it works.
Does anybody know a downloadable demo where I can learn to write a java applet, storing in my application an calling from a button?
thx
Gerhard

.

Java Scipt Calling Java Applet

how could i call java applet in my java script code as i'm going to build an applet for internet application server but i'm going to check user input validation in java script !?!?!!?

in javascript:
theApplet.someMethod()
in html: add a name attribute to the applet tag.
<APPLET CODE=MyApplet.class
NAME="theApplet"
MAYSCRIPT
HEIGHT=150
WIDTH=500>
</APPLET>
the mayscript attribute is added if you want to make applet to javascript communication possible. (and not only javascript to applet communication)

Calling one applet from another passing database connection

We are trying to establish if it is possible to start an applet that connects to a database and use that as a 'menu'. From there we would call other applets. Is there a way to pass along the database connection from one applet to another. Any help is greatly appreciated.
null

Here' s a sample program in the Java Tutorial that messages between applets.
http://java.sun.com/docs/books/tutorial/applet/appletsonly/iac.html

Can i call signed applet from jsf page in sun studio creator

Hello javites,
I want to know whether i can call signed applet from jsf page in sun studio creator. If possible, how do i go about it.
Thanks.

This tutorial may help:
http://developers.sun.com/prodtech/javatools/jscreator/reference/techart/2/applet.html?feed=DSC

JSP plugin call for applet

How do I call an applet with the JSP plugin call? The applet works OK when called from an HTML file. However, when called from a JSP file, the applet is not found.
Here's the code:
<jsp:plugin type="applet" code="SelectList.class" codebase="applet"
archive="bc4jhtml.jar,datatags.jar,uixtags.jar,bc4juixtags.jar,ojsp.jar,ojsputil.jar,oc4j.jar,servlet.jar,ojc.jar,xmlparserv2.jar,regexp.jar,share.jar,uix2.jar,xmlcomp.jar,jdevrt.jar,runtime12.jar,bc4jmt.jar,collections.jar,bc4jct.jar,jndi.jar,classes12.jar,nls_charset12.jar,bc4jimdomains.jar,ordim.jar,ordhttp.jar,jdevcm.jar,bc4jdomorcl.jar,bc4jdatum.jar,activation.jar,jcert.jar,jnet.jar,jta.jar,mail.jar,ejb.jar,jaxp.jar,jdbc.jar,jaas.jar,jsse.jar,bc4jui.jar,bigraphbean.jar,LW_PfjBean.jar"
jreversion="1.2" width="1000" height="360" >
<jsp:params>
<jsp:param name="test" value="This is a test." />
</jsp:params>
<jsp:fallback>
You need to install the Java plugin on your web browser to run this applet.
</jsp:fallback>
</jsp:plugin>

You really don't need to put all the jar files in your archive list.
Most likely, you just need to put the jar that contains the applet.
And, few more dependencies jar files.
Here is some sample code for your reference:
<jsp:plugin type="applet" code="Clock2.class" codebase="applet" jreversion="1.2"
width="160" height="150" >
<jsp:fallback>
Plugin tag OBJECT or EMBED not supported by browser.
</jsp:fallback>
</jsp:plugin>
code attribute points to a class file "Clock2.class"
under the directory under codebase attribute "applet"
You may want to take a look into the HTML / JSP document about
how the plugin tag works in HTML / JSP.

Is it possible to call other applet?

Hi Friends..
I want to know, is it possible to "CALL" other applet from one Applet?..
And is it a good implementation or not?..
Could you describe the Applet that call other Applet, perhaps through the example application maybe..
Thanks in advance..

Hi,
You can call the process method on another applet if you wish (if it is in the same package) or you can use Sharable Object Interfaces (outlined in the user guide). We have used SOI extensively to share data between applets in different packages (and as such different contexts on the card).
Cheers,
Shane

Hope u will send me the details of calling an applet from another

hai to all
i am trying to do an applet ,and it corrct in jdev ide,but trying to run in explorer
i cant connect the database,
but in applet viewer also i cant call another
applet throught a button or any thing
i hope u will send me details
and thanks a lot to Joe silva
thanks in advance
anas
null

I've not done it myself but I think you must have a name for the second applet specified in the html tag. That is how the first applet will be able to identify the second applet.
maybe..
<APPLET CODE="FirstApplet.class"></APPLET>
<APPLET CODE="SecondApplet.class" NAME="ReceiverName"></APPLET>
then in your java code
SecondApplet app = (SecondApplet) getAppletContext().getApplet("ReceiverName");
if (app != null)
<execute code>
But I've not done it, so its only a suggestion...

Calling one applet to another applet

Hi,
How to call one applet program to another applet program.
thanks in advance

ManiForum wrote:
..How to call one applet program to another applet program.3 tips
- How to Google.
- How to ask [smart questions|http://catb.org/~esr/faqs/smart-questions.html].
- How to use [question marks|http://www.google.com/search?q=question+marks] to denote a question.
..thanks in advanceNo wuckin' furries.

Dont ask why! How do I call an applet that is in a jar file that is...

Can someone tell me how I would call an applet that is inside of a jar file that is inside of a parent jar file?
example call to an Applet
<APPLET CODE="TimeApplet" ARCHIVE="time.jar" />what I want to do is something like
<APPLET CODE="TimeApplet" ARCHIVE="parent.time.jar" />
where parent is the top jar and time is the inner jar.any help or links to tutorials/articles would be most appreciated.
if you ask why I wont answer.

we are doing a signed applet and we only want the user to have to sign 1 time
and we have lots of applets to display so we dont want to have them sign for
each item.Sorry but that doesn't make much sense, niether does putting a jar file in a jar file.
Do you want the "do you trust" question only one time? If so than you only have
to sign all the jar files with the same key.
You can load a jar file from your applet but it seems that these jar files will run
in sanbox security no matter how you sign it:
http://forum.java.sun.com/thread.jspa?messageID=3582952
Asking why does make sense, I coud be asking how to climb a building without
telling my objective is to get on the 10th floor.
You would tell me how to climb the building an I'd probably do it and find out
later I could just as well have taken the elivator.

Tomcat calling weblogic applet

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