Java & JVM Problems!

Please lend a hand! I can't seem to get anything java-related
to show up in my CF ADmin control panel!
That includes NOT being able to access the about half of the
pages in the Admin site!
Totally frustrated, and am probably doing something
silly-wrong.

Are you getting any errors? What do your logs say?

Similar Messages

Java JVM version

Hi,
In our xMII 11.5 server system, I found that java JVM version is 1.4.2_07. In my client side JVM version is 1.5.0_11. Will it be a problem?
-Raj

Hi Govind,
This depends on the version of xMII you are running. From SR3 onwards (11.5.3), I believe the xMII server needs to have JSDK 1.4.2_13 or newer and officially supports JRE 1.5.0_09 or newer on client machines.
Maybe you can post the service release your are on and you can get a more accurate answe on this forum...
Regards,
Sascha

Java Session problem while sending mail(using javamail) using Pl/SQL

Hello ...
i am using Java stored procedure to send mail. but i'm getting java session problem. means only once i can execute that procedure
pls any help.

props.put("smtp.gmail.com",host);I doubt javamail recognizes the 'smtp.gmail.com' property. I think it expects 'mail.host'. Of course since it cannot find a specified howt it assumes by default localhost
Please format your code when you post the next time, there is a nice 'code' button above the post area.
Mike

Java Programming Problem

Hi all,
I was looking for this java programming problem which had to do with a large building and there was some gallons of water involved in it too somehow and we had to figure out the height of the buiding using java. This problem is also in one of the java books and I really need to find out all details about this problem and the solution. NEED HELP!!
Thanks
mac

Yes, it will. The water will drain from the bottom of
the tank until the pressure from the water inside the
tank equals the pressure from the pipe. In other
words, without a pump, the water will drain out until
there is the same amount of water in the tank as in
the pipe The water pressure depends on the depth of the water, not the volume. So once the depth of the water inside the pipe reaches the same depth as the water inside the tank it will stop flowing. This will never be above the height of the tank.
I found this applet which demonstrates our problem. If you run it you can drag the guy up to the top, when water in his hose reaches the level of the water in the tank it will stop flowing out.

Java Uninstall Problem

Java Uninstall Problem
This all came about because of a failed uninstall, using Your Uninstaller.
The {Java runtime which is all I want) is not listed now & I tried all the other fix bad uninstall type features, all to no avail.} )
When I DL & run the latest package (jxpiinstall-6u11-fcs-bin-b90-windows-i586-25_nov_2008.exe}
& run it I get:
1st message:
     "This software has already been installed on your computer.
     Would you like to install it?"
If I say no, it exits.
If I say yes, I get this second message:
     :This action is only valid for products that are currently installed."
So Now I have no Java & have no idea what to do.
Any help would be greatly appreciated.
Thanks, Neuromancer23

Sorry...after posting it i realized there was a more appropriate forum, of which it took quiet awhile to find.)
Now that I know where to find the forum list I will never double-post again.
I'll close the question if I can

How do I install JAVA JVM, JServer and XDK in Oracle Express Ed database

IF I query with SELECT COUNT(*) FROM all_objects WHERE object_type LIKE 'JAVA%'; I get a count of 0.
I see no DBMS_JAVA package.
How can I install JAVA JVM, JServer and XDK in the Oracle Express Edition database?
I see no initjvm.sql, initxml.sql and xmlja.sql scripts. There are catjava.sql and catexf.sql scripts in the rdbms/admin folder.

cssifah,
Looks like you want this Web page:
http://www.oracle.com/technology/products/database/xe/forum.html
Good Luck,
Avi.

Oracle Express is missing JAVA JVM

IF I query with SELECT COUNT(*) FROM all_objects WHERE object_type LIKE 'JAVA%'; I get a count of 0.
I see no DBMS_JAVA package.
How can I install JAVA JVM, JServer and XDK in the Oracle Express database?
I see no initjvm.sql, initxml.sql and xmlja.sql scripts. There are catjava.sql and catexf.sql scripts in the rdbms/admin folder.

Well, java is not included in XE and cannot be added after the install.
It was a quite heavily discussed issue in the beta phase but finally it was not included. You get the small footprint, though ;).
~Dietmar.

Sun Java security problems

Please any one tel me about Sun Java security problems
with Desktop application

Hi.
If you're using SSGD 4.41, please download the Admin guide from here:
http://docs.sun.com/app/docs/doc/820-4907
There, at page #41 you'll find useful info concerning "Client Connections and Security Warnings".
Hope this helps,
Rob

OS X Lion - JAVA SCRIPT PROBLEM

I recently updated from Snow Leopard to OS X Lion. Now I seem to have a JAVA Script problem. Where do I start fixing this issue. I have checked updates etc etc but it seems to be updated. However, when I login to my web site backend, I have a problem. Any advice please?

Would you please write some more details? explain the problem and what web site backend you use. Thanks.

Does Solaris10 for x86 allow me to set java jvm heap size up to 3G

Does Solaris10 for x86 allow me to set java jvm heap size up to 3G,is it really true solaris only take 512M memory address space?I can only set 2668M(2.5G)on linux cause linux kernel take 1G memory address space.Thanks~~

[url http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Runtime.html]Runtime seems to have some useful methods...

Java threading problem... threads only work on 1 processor

I've got a iterative deepening problem that i have to parallelize. As far as i know i did everything correctly however everything seems to be running on 1 processor instead of 2 processors. As far as i know i am using threads (-Xprof either defines them as thread-1 thread-2 or pool1-thread1,depending on the method used for issueing)
the worker thread is:
public int solutionsT(Board board, int currentDepth) {
        int temp = 0;
        int result = 0;
        if (board.distance() == 0) {
           return 1;
        if (board.distance() > board.bound()) {
            return 0;
        Board[] children = board.makeMoves();
        result = 0;
        for (int i = 0; i < children.length; i++) {
            if (children[i] != null) {
                temp = solutionsT(children, currentDepth + 1);
if(temp != 0){
result += temp;
return result;
public void run() {
int temp =0;
int i = 0;
while(true){
while(bag.size() !=0){
bag.putSolution(solutionsT(bag.get(),1));
try{
barrier.await();
}catch(Exception e){}
it get's it's input from a bag that is filled before the iteration begins. (once the bag is filled it trips a barrier) this worker thread is a implementation of Runnable
This piece of code is used to make the thread object and to issue it
public SolutionThread(int numberOfThreads) {
   thread = numberOfThreads;
   bag = new bagOfBoards();
   barrier = new CyclicBarrier(thread+1);
   if(thread > 1){
      ExecutorService threadExecutor = Executors.newFixedThreadPool( thread );
      solution = new ThreadTest[thread];
      bag = new bagOfBoards();
      for(int i = 0;i<thread;i++){
         solution[i] = new ThreadTest(bag, lock, barrier, i);
         threadExecutor.execute(solution);
finally this is the code which is used to acces the bag and get a board.
synchronized public Board get() {
            if (size > 0) {
            size--;
            Board result = bag[size];
            return result;
        } else {
         return null;
    }since this method is synchronized and it always returns something (either null or a board) and the worker tests for this. there is no race condition here.
furter more. the main thread is a loop. It fills te bags with an intial state. then it trips the barrier and waits for the workers to do the work. the workers then process the bag until it hits zero and then trip the barrier so that the main thread can do the next iteration (and fill the bag)
p.s. i know the code is a bit messy, but i want to get the threading to work. As of now i relaly don't understand why the threads are just running on 1 processor instead of 2 processors. not only that. the excecution time is nearly the same as that of a sequential equivalent.
p.s.2 the code is parallisable. and it is run on a smp system.
Message was edited by:
jstrike

i'm very sure that the jvm and os support smp. the
problem really should be in the code.I don't see how this can be the case. There's nothing in the Java language that deals with how threads are assigned to processors (at least not as far as I know) so there isn't anything you can do in your code to affect that.
Or did you meant that i have to tell the jvm in the class that
there is support for multiple processorsThat would be the only possibility. I have no idea whether it can be done or not, though.

Calling BIP from Oracle Forms: Having Java version problem.

<h3>
Hi,
I tried to call a BIP report through Oracle Forms.
I followed this PDF.
http://www.oracle.com/technology/products/xml-publisher/docs/Forms_BIP_v22.pdf
Problem is, when I run the form, I get this error (copied from the Java Console)
Oracle JInitiator: Version 1.3.1.22
Using JRE version 1.3.1.22-internal Java HotSpot(TM) Client VM
User home directory = C:\Documents and Settings\channasiriwardena
Proxy Configuration: Manual Configuration
Proxy: 192.168.11.100:81
Proxy Overrides: *.iil.informatics.lk,192.168.11.*,192.168.10.*,<local>
JAR cache enabled
Location: C:\Documents and Settings\channasiriwardena\Oracle Jar Cache
Maximum size: 50 MB
Compression level: 0 Forms Applet version is : 10.1.2.0
java.lang.UnsupportedClassVersionError: oracle/j2ee/ws/client/ServiceFactoryImpl (Unsupported major.minor version 49.0)
I am using Forms Forms [32 Bit] Version 10.1.2.0.2.
JDeveloper Version is 10.1.3.5.0.
The Forms 10g Java version is 1.4.
So according to what I discovered on the net, the problem is: My JInitiator is 1.3 using JRE 1.3, BUT my .JAR file is Java 1.5.
Since we are using the Oracle JVM, ticking “Use JRE 1.5..” in the Advanced tab of the Internet Explorer Options has no effect.
We cannot upgrade the Oracle JInitiator to a 1.5 since there is no such JInitiator version. JInitiator is available only up to 1.3.1.30.
What can I do. What if I install Java 1.3 in my machine and re-compile my JAR file with that? Will that work or is there another solution?
Has anybody encountered this problem?
Any help would be greatly appreciated.
Thanks & Regards,
C.S.
</h3>

Hi,
Yes, you need to compile your source files with JDK 1.3 (since JInit 1.3.x.x uses JDK 1.3).
Other solution would be to use JRE 1.5 (instead of JInitiator).
Check out [this thread|http://forums.oracle.com/forums/thread.jspa?threadID=550563] on how to use JRE1.5
-Arun

Connecting DataBase in Java : big problem !

I'm trying to connect my java application with a database.
It doens't exits, i want to create it by sql query. There's a problem : when i try to connect to by
try {
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
catch (ClassNotFoundException e){
System.out.println("driver problem"+e);
i've got in return this message :
java.lang.ClassNotFoundException: sun.jdbc.odbc.JdbcOdbcDriver
So read that the Jbdcdriver is included in JdK .. so what's the problem ?
I run my application under Mac OSx Jaguar, JDK 1.3
Please help me !

So read that the Jbdcdriver is included in JdK .. so what's the problem ?That driver only comes with the Sun JVM for Solaris, Linux and Windows.
You will need to find another driver.
I'm trying to connect my java application with a database.
It doens't exits, i want to create it by sql query.It is seldom, if ever possible to create a database using JDBC. JDBC connects to a database so by definition a database must exist for it to connect to. That of course is not the same as creating the tables in a database.

JAVA UFL java-heap problem

Hi,
Outline
I have developed a User Function Library (UFL) in Java to Internationalize the reports. I have followed the guide provided by BusinessObject: http://www.sdn.sap.com/irj/boc/index?rid=/library/uuid/20d050fc-6464-2b10-88aa-a31e24c4febf&overridelayout=true
System Specifications:
Windows XP
Intel Pentium 4 CPU 3.00GHz
Memory: 3 GB (RAM)
Crystal Reports: 2008 version 12.1.3.1028
Java: JDK 1.6.0.13
Problem
Run into a Java heap space when the report is refreshing.
Description.
I open the report and click the refresh button. The report starts to quickly fetch data but then starts to slow down, it comes to the point where it stops fetching data. After a few seconds, the Formula Editor pops-up, highlights the Internationalization formula and then another small window titled "Crystal Reports" pops up with the message "Java heap space".
Comments
I know that I am running into a memory problem. I have check my memory in the Wondows Task Manager under the tab Performance and I see that my memory never reaches the maximum amount I have. I have also tried changing the Java versions, have also tried the UFL with Crystal reports XI and also tried with different computers all with which I get the same problem.
Has anyone encountered the same problem, if so, how were you able to fix it?
Thank you very much for your help.
Valentine

Valentine,
How big is the report? I had a similar problem when trying to produce a large report, although it did not have any UFL reference.
I increased the JVM stack size with the "-Xms32m -Xmx256m" flags.
But for the life of me I cannot remember where I set this from running within Eclipse. I will have a look around and see
if I can remember, but in the mean time it might help.
Darren

Java heap problem

Hi.
I have a question about objects in session scope.
I have created an object which holds a grid (a matrix of 2046 elements of HtmlnputText). At the beginning everything works ok, but later when several users create this matrix populating from database several times I get a java heap error. Reading several documents I think the object created are never released from memory so I don't know how to focus this stuff.
I have changed the scope of the object to resquest and the behaviour is the same..
Any comments about this?
thanks
PD: I use tomcat 6.0.x

Hi,
thanks both for comments.
I have no access to JVM, so I can't change it.
About the logic I think the problem is the GC is not working, I mean. when I get the recordset from database I make something like this:
Grid grid = new Grid(myData);
myData is an object populated from the recordset and I have defined the beans in request scope (not in session scope).
so everytime I make this, I lose the reference for the old Grid but I think this remains in memory so, when the application is running for some time it collapse and I get a java heap memory error. I'm not sure but I think that is the behaviour. Am I wrong?
Anyway I'll try with jmeter.
Thanks
greetings

Java & JVM Problems!

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