i use the jre1_4_2_07 . my application creates some threads . each thread open telnet session with a server and launches a new thread that call a JNI method. the jvm crashes without any error message.could anyone tell me if i can have the stackTrace of the jvm just before the ...

I have a C++ application that needs to create and call Java objects. If there is an exception in a Java method I want to be able to get the text of the exception's message for reporting an error to the C++ application user. The problem is, I can't get the methodID of the 'getMessage' method ...

Hi all,i'm developing two java programs and they are generated as indipendent .exe programs.Each application can launch the other, closing itself.Right now each run generate a different jvm invocation: i'd like to know if it is possible to run the other application into the first launched ...

Hi to all, i'm a amatuer towards this vector thing which i hope that most folks out there will share to giude me to solve this problem...I got a vector to store ID numbers. for (int i = 0; i < v.size(); i++) {System.out.prinln(v.get(i).toString());}the return is [, 00 97654321, 00 ...

I have just started with all this technology. I originally installed JRE for some purpose or other and that was fine. Later I downloaded Netbeans and installed that. Two things are a problem.1. My Open Office Org Database program queries that the JRE is not available. When I go to select its ...

hi,i just wrote a little java application which is calling my c-binary (a win32 multithread application written in pure ansi c) . let's call it "test.exe". i'm launching it via: Runtime.getRuntime().exec(cmd, new String[] { env }, dir)the program is started correctly and i get all test.exe ...

After installing Microsoft Update KB912945 on Windows XP SP2 EVERY CALL (!!!) of our java applet causes a crash of the installed JAVA VM 1.5.0_04 with the following EXCEPTION_ACCESS_VIOLATION.After DEinstallation of Microsoft Update KB912945 everything is again correct.Or: using an older ...

Hi. I have created a dll using jni with c which creates a symmetric key. Now, I am trying to run the sample program from MSDN website for encrypting afile. However, the program is not compiling. I created a new project and also used the same code in my main application for dll I created.The ...

I need the HWND value from the top level frame of my Swing application so that I can call "InternetDial" from wininet.dll. I am following the example that is posted on this site in this thread: http://forum.java.sun.com/thread.jspa?threadID=593759&messageID=3875990When I get to the following ...

hello ,please who knows how i can run a java application 'B' from inside another java application 'A' and get the error messages (if any) from the application 'B'

HiI am looking for any java based opensource system monitoring tool (something like task manager in windows)currently i could see few profilers that gives the details abt only the JVM ...Is there anything available that would give all the details of the entire OS?Please ...

please get me a solution its urgent

i was having no probs with yahoo pool till 2 days back. and now the applet just wont open. some1 told me i must install java which i did and still nothin. there is a red x mark at the top left side. some1 help me plzzzzzzzzzz.

Dear Team, I am working in a SNMP Java based application. I would like to profile my application by different types memory used.Could you please let me know what are different types of memory used by the JVM(Ex:- Stack, heap etc..) at runtime and how to measure ...

I implementing a POJO container and need to be able to map an instance to a Tag instance. I could just use an ordinary java.util.Map if I could assume that the Object.hashCode() method would not be shadowed, but this far from true in all cases. The only thing I can assume is that the instance ...

Hello,I've been using the JNI for years and I have a well-developed JNI DLL to interface to our legacy native code base. Our company is now upgrading to visual studio 2005, which comes with the wonderful baggage of the new ".manifest" scheme binding tightly to MSVCR80.DLL.When I compile/link ...

Is a C++ program responsible for freeing any objects it creates ? My impression is that with JNI1.2 the answer is no, but I would like to know how Java objects created in a C++ program get GC'd. For example, in the code:jvm->AttachCurrentThread((void **)(&env), NULL);myObj= ...

Hi,I was installing java on a client today and the install ended prematurely due to corrupt dll's. It kept telling me to uninstall the program from add/remove programs but it STILL won't uninstall due to corrupt dll's. IMO this is a very badly enginered package as to why you can't install ...

Is it possible to have a C/C++ program allocate some memory, then have JNI use that memory for primitive java objects (such an array of bytes) that are passed to Java objects ?I would like to allocate a region of memory in C++, then give that memory to a Java object (via some kind of JNI type) ...

Hi.I have created a dll using jni and c which calls java classes. I had created only one function which starts and goes through the jvm. However, I have added another function which does something else. When I run my main application, it goes through the first function and starts jvm, and the ...

Hi!The prg is trying to connect to a remote Sql server Db . The prog is complied by specifying the path of sql drivers. When it is run1)java -classpath pathofsqldivers classnm param1 param2its working fine2)java classnm param1 param2 its giving the error:Exception in thread "main" ...

hallo,it's me again ;-) sorry, but my problem isn't solved yet (see the orignal thread here: http://forum.java.sun.com/thread.jspa?messageID=4155607).I just debugged a little bit through my c program. and it's not the multithrading stuff causing the error, but the win32 socket creation!i ...

Hi,After installing the latest jvm to handle the Daylight savings for Eastern Australia, the time zone is now getting set to the GMT and all of the process are showing 10 hours behind. 1.4.2_11 works fine.The 1.3.1_18 seems to be buggy. Please fix immediately This impacts a lot of 1.3.1 jvm ...

I want to call a java method from my native code .but event after successfull copilation it does not run sucessfully.it does not generate any error. please suggest me how to invoke java function from native function.also suggest me the method of calling jni from my swing interface.My intention ...

I'm posting this here incase anyone else runs into this problem.The IMON component of Eset NOD32 anti-virus can cause application crashes.Initially we thought this was a bug in the JVM socket code, but after some heavy debugging, we tracked it down to the IMON component from NOD32.Eset isn't ...

If I don't use the thread, everything works just fine. When I start using a thread, things don't work. I think that my class path is messed up or wiped out. Is there a way to see what the classpath for the current JNIEnv and/or JVM instance? Has anybody seen anything similar? Any suggestions ...

Hello all -I'm currently trying to convert a const double* to a jdoubleArray and return the jdoubleArray. My code is compiling but the jdoubleArray I return seems to be all zeros. My code is below. Any help is appreciated.JNIEXPORT jdoubleArray JNICALL ...

What's the need for JVM to interpret bytecode instead of compiling whole of it and then executing it ?

Hi,In our application we are using JNI to make call to a C++ DLL. JVM is crashing when we try to invoke a particular method. the funniest part is, it is not happening all the time, like, if i make the method call with same parameter 5 times in a raw, it will fail once.. all other times ...

Hello,I am running my application on jdk build 1.5.0_04-b05 and build 1.5.0_01-b08 on both solaris and windows XP. I am performing a stress test on my application. In solaris,1> With 64 bit opteron processor the application goes out of memory with 50 concurrent users and 150 hits per second. ...

Hi All,i start a cross posting, i hope it's okay in this case.the original post is locatet at: http://forum.java.sun.com/thread.jspa?messageID=4159669but, i think here is a better place for this topic...this is a simple test-case to explain the problem:public class test {public static void ...

Hello,I am new to JNI and I wanted to create an example - 1 java source class and 1 launcher written in C. Every time I want to compile (and link) the launcher.c, I get"undefined reference to _impl_JNI_CreateJavaVM" error.I tried to use cygwin-gcc and mingw-gcc, but didn't find any solution ...

Hello,I am new to JNI and I wanted to create an example - 1 java source class and 1 launcher written in C. Every time I want to compile (and link) the launcher.c, I get"undefined reference to _impl_JNI_CreateJavaVM" error.I tried to use cygwin-gcc and mingw-gcc, but didn't find any solution ...

When I try to load an online RPG called "Runescape" the Sun Java Consol says something similar to the following.Exception in thread "Thread-8" java.lang.OutOfMemoryError: Java heap spaceI'm not a Java programmer or anything, I would just like to know how to fix this ...

Hi everybody,I have written some fundamental research papers which I want to implement. I have recently chosen to do that in Java virtual machine. For this I need the JVM source code and the manual which helps me compile and make some ammendments. If the paper is successfully implemented then ...

Hi friends,I am able to compile ImageMagick6.2.4. using vc++But I have to compile ImageMagick6.2.5.When I tried to compile ImageMagick-6.2.5 from visual MagickI tried with all four options in configure..st,mt, etc..For all of those I got the following ...

can any one tell me whether it's possbile to run JVM on Windows Mobile OS.if it is possible, can anyone give me any tips on it? or examples.thx

Jdk 1.4 gives a facility that we can aceess stack trace across jvms but we cant' do it through 1.3. If we want to achieve through jdk1.3 then how can we do it.

Hello,I am currently developing a tiny testframework expanding the JUnitframework. I show a Swing dialog to the user to select a Jar file which contains TestCases and using reflection to gather classes and finally methods of these classes out of this Jar file. This works very well. However, ...

Hai Everybody,I have a problem with Class Loading.The scenario is described below in a Web ApplicationI have an EAR say Static.ear,which uses a JAR file(Dynamic.jar) in my application. The logic is that,the Dynamic.jar is provided so that any user can use it to configure/customize some of ...

Hi all,Here I am with another UnsatisfiedLinkError problem.I swear I've been reading about JNI and searching for in this forum and I'll keep doing this, but I would like to understand how it happens...I'm trying to use WINIO.DLL (www.internals.com) and it's loaded correclty. When I try to ...

Hi guys,I am using Suse linux 10 and j2sdk 1.4.2.11. I am getting the error given below. I am essentially building a tool for smart card security and i have done some of the coding in c and some in java. It gave me an library path error so i set the LD_LIBRARY_PATH. but this gave rise to the ...

moo

Hi,I want to compre the following two tests for getting data from a Java ResultsSet object into a C++ app:TEST 1: C++ prog creates a ByteBuffer object and passes it to Java which fills that ByteBuffer with data from the ResulSet object.TEST 2: C++ prog invokes the ResultSet object to get each ...

This is somewhat related to my previous post about transferring data from Java to C++. If you have a char array in C++, and you give this (via a ByteBuffer) to a Java object, the Java object can fill that array in two ways:// 1: use getBytespublic void pullCharData( ByteBuffer bb ) {String str ...

I want to convert Java PersistenceException to proper exception.

i was having no probs with yahoo pool till 2 days back. and now the applet just wont open. some1 told me i must install java which i did and still nothin. there is a red x mark at the top left side. some1 help me plzzzzzzzzzz.

When i try to run java -jar *.jar in JDK1.4.2_08 i get invalid or corrupted error but same works in JDK1.4.2_04

Urgent?

Hi, I am producing a chess board where i need to move one piece on the board from one place to another. The pieces are made up of JLabels and i need to move them around the JPanel, any ideas how, i have posted the basic code which i have been working on :import java.util.*;import ...