RMI profiles in CDC

Hi Friends
i am eager to know the information about profiles.what is the RMI profiles in CDC ?can it be implemented the CDC configuration using the J2ME Wireless Toolkit 2.5?
Java RMI(Remote Method Invocation) APIs can be used in this J2ME CDC Profiles

please see:
http://forums.sun.com/thread.jspa?messageID=3085775

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RMI Profile in CDC

Hi Everyone,
I am very new to J2ME so PLEASE bear with me.
I just went through CLDC and MIDP and seems I cant put in the RMI support however I would like to ask a question that can I use the CDC and then use personal/foundation profile to implement RMI profile ?! I have read that CDC requires higher memory about 2 MB of RAM but then I want to know can I implement it in any cell phone that has this much of capacity. Please reply.
Thanking you,
--Siddhs

please see:
http://forums.sun.com/thread.jspa?messageID=3085775

Who's using CDC in the real world?

Hello,
I'm wondering how many of you are using JVMs that conform to the CDC specification out there?
If so, what type of applications are you developing? Do you intend to use the Personal Profile when it comes along?
Thanks in advance,
Matt Green, Java architect.

insignia also announced a jeode version for cdc/foundation profile and cdc/personal basis profile. http://www.insignia.com/content/products/standardsjava.shtml
to come to your other questions: yes, we aim at developing a multimedia / drm solution based on cdc.
regards
bernard

J2ME & Personal Profile - HOW LONG MUST WE WAIT

Hello!
I� am worry about the shipment off Personal Profile and CDC.
How long must we wait so that Sun will decide to launch this product?!!!
And what about Personal Java for WindowsCE 3.0 (not a beta release, a final and stable one)? There are VM that we can buy (Insignia), but the principles of Sun and Java are Open Source and free licenses not Open Source BUY IT?!!!!! Besides that this version do not support the possibility to access to MS Pocket Access Database...
Does anyone know something about this?
Thanks
Marco

Why don't you use J2SE instead, that way you don't have to wait for J2ME anymore!!!!!
FYI... SavaJe has developed a new Java Operating System for StrongARM based devices such as the Compaq iPAQ. SavaJe supports all Java 2, Standard Edition, JDK 1.3 APIs, libraries and classes on mobile devices, and is the fastest Java platform capable of running all J2SE and PersonalJava applications at desktop performance. (over 10 times faster than running Java on Jeode based on the tests I have done).
For more information, please visit: http://java.sun.com/features/2001/06/savaje.html
For a free evaluation download, visit our website at: http://www.savaje.com

Jar files are not read from HDD

Hi,
we are facing a problem while trying to read jar files from Hard disk using CVM. we could able to read the file and the number of bytes read exactely matches with the file size. but while trying to use JNI (*env)->FindClass it is returns 0. Some times it returns an error "inflateFully: ZIP_Read". however we could able to read a small jar file which is of 2 kb and display some graphics. is it the problem with size?? our application is 80kb.Can some one help us in fixing this.
Profile: PBP/CDC
Note:
Sam

Step 6 makes your third party jars available during runtime on your server since you put the dependency to runtime. I don't think you need/can reference your j2ee server dc in the portalapp.xml.
Summary of the link I sent you:
1. Create an External Library DC
2. Copy all of the Jars I needed to the libraries folder of this DC
3. Create two Public Parts (right click on the jar files in Package Explorer)
i) compilePart (with purpose compilation)
ii) assemblyPart (with purpose assembly)
4 Create a new DC of type J2EE Server Component / Library
5. Add a Used DC to the J2EE Library, reference the compilePart from previous step, and set Dependency type to Build
6. Add another Used DC, reference the assemblePart, this time select both Build and Runtime Dependency Types
7. Build and deploy.
Br
Göran

How do I syncronize a PDA with PC? (activesync/web service?)

Hi!
Short intro:
I’m currently working in a project with the goal to create a program where a user is collecting data in the field with a PDA. When the user has returned to his office, the stored data in the PDA is to be added to a central database when the PDA is docked.
Longer explanation:
The PDA is going to be used for inputing field data into our program. When the user then returns to his office, he want’s to dock his PDA, and with minimal effort, add the collected data to a big central database. The database and pc client software is allready existing and has been used for a while. The user is expected to have none to very little previous experience with computers. The data collected is security critical and hence no Bluetooth, IR, WiFi can be used to transfer the data to the database. The users requires that we use docking
The PDA has to be developed with J2ME (that’s why I’m here =)). No platform for the program has been decided yet, but it would be preferred that the program could be run on both PalmOS and PocketPC. If both OSs is to be used, I guess the PDA program has to comply to CLDC/MIDP 2.0, since this is the best PalmOS can do. But, it is no problem to develop just for PocketPC if there is an easy way of syncing data using CDC + additional profiles.
My/our background: We have developed software in Java, but have no experience with J2ME and programming for PDAs.
Question:
I need help with transfering the collected data from the PDA to our client software on the PC. As I understand it, the MIDP 2.0 profile (or CDC+profiles), does not implement any support for PalmOS’s/PocketPC’s hotsync/active sync. Is there a way to easily utilize these functions? Maybe with the help of additional Java APIs? I have done some research and as I understand it is complicated to transfer data this way.But more input on the subject is highly appreciated.
Another option I have just heard of is developing a secure web service and utilize the central network used for all the offices where the software is to be used. I have no experience with web services, anyone who can think of a flexible secure solution using web services?
I would like to thank you all in advance, especially you who provide me with some usable help :D.
/Andreas

Maybe I should post this question in another section?

Some basic questions about Java ME

Hi,
I am new in the world of Java ME, I started to read about the technologies around it and for this reason I have some questions.
There are 2 platforms CDC and CLDC and on top of these platforms there are some profiles, for example Personal Profile for CDC or MIDP2 for CLDC. On the next level (on top of these profiles) are some JSRs which are treated as optional packages.
I saw that the CLDC emulator from SUN - WTK contains for example JSR 179 for Location based services and JSR 226 - SVG rendering. But the counterpart for CDC doesn't contain them.
How can these JSRs be added to the CDC stack? are there some implementations of these JSRs as jars or something like this? or on the JCP site are only the specifications of this JSRs and if someone wants to add these JSRs to an emulator (virtual machine) he should implement these specifications?
I hope that I have explained properly my "puzzle" and that someone will answer to my questions.
Thank you

1.    String[] numString = {"1","2","345678","9","abc"};
    int[] numInt = new int[numString.length];
    for (int x=0; x<numString.length; x++) {
      try {
     numInt[x] = Integer.parseInt(numString[x]);
      } catch (NumberFormatException nfe) {
     System.out.println(nfe.getMessage());
        numInt[x] = Integer.MIN_VALUE;
    }2. Best for what?

To StrongArm or Not to StrongArm?

For people who are interested in personal java programming, what processor is best in terms of power of CPU and availablility of the latest pjava? Initially I thought StrongArm processor was the way to go. But then I find out that the early access version which is based on the older version (JDK1.1) is more than a year old.
The newer version (JDK1.2.x) is available only for the MIPS and SH3 processor. I looked at PDA with these processor and found them to be low on memory. Then I looked at the latest PDA models from the same company and I found that they are based on StrongArm processor.
This is very confusing. All the latest models seems to be based on StrongArm and yet SUN would not release their latest version of pJava on StrongArm.
Any Ideas's on which processor to aim while buying a PDA?

I've developed some apps in a Symbol PDT 8100 (which uses the StrongArm processor) using the version of personal java that I downloaded from "Early Access". It works quite fine, but it's still a betha version and it looks like Sun had forgotten StrongArm in the newer releases.
There are other JVMs for the StrongArm which support more modern jdk releases, like the CrEme's one that you can find in http://www.creme.com, but that's a comercial solution.
Anyway, StrongArm processor is being using in nearly all new PDAs, so, either Sun will make a port por Personal Java to StrongArm, or surely when the PDA Profile for CDC were release, we'll find a StrongArm version.

RMI with CDC + foundation profile

I'm trying to get RMI working with Java ME on Linux. I built the CDC with the Foundation Profile and installed that on the target device (which has an i486-class processor), and set LD_LIBRARY_PATH to include the path that my native library is in.
If I run the standard java VM (1.5), it finds the library and runs my test app. However, if I run it with cvm, I get the following error:
java.lang.UnsatisfiedLinkError: no adm1026 in java.library.path
at java.lang.ClassLoader.loadLibraryInternal(Ljava/lang/Class;Ljava/lang/String;ZZ)Ljava/lang/Object;(ClassLoader.java:1465)
at java.lang.ClassLoader.loadLibrary(Ljava/lang/Class;Ljava/lang/String;Z)V(ClassLoader.java:1349)
at java.lang.Runtime.loadLibrary0(Ljava/lang/Class;Ljava/lang/String;)V(Runtime.java:814)
at java.lang.System.loadLibrary(Ljava/lang/String;)V(System.java:854)
at com.terascala.manager.server.EnclosureSensorReader.<clinit>()V(EnclosureSensorReader.java:71)
at java.lang.Class.runStaticInitializers()V(Class.java:1523)
at java.lang.reflect.Method.invoke(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;(Method.java:314)
at sun.misc.CVM.runMain()V(CVM.java:259)
I've also tried explicitly setting java.library.path, and it makes no difference. Is there some change I have to make to compile my library so that CVM can load it? I know that Linux will often say it "can't find" a library when it really means that the library isn't compatible with the loader, so I assume something like that is going on here.
Thanks in advance.

Hi.
Some iPAQ's are delivered with Jeode PersonalJava VM. It can also run applets. This is a kind of "old" Java but still "state of the art" for WinCE/PPC.
For the more up to date J2ME you need a proper VM. CLDC is for devices with restricted resources like mobile phones etc. CDC is for devices with some more resources, e. g PDA, Settop-boxes etc. For these devices and J2ME/CDC I only know the beta of NSIcom's CrE-ME VM, availabe as a 30-days trial at www.nsicom.com.
Yours
Michael

CDC Personal Profile and XML

Hi everybody,
does anyone here has any experiences with J9 (CDC Personal Profile) and XML document?
Can I use SAX or Dom to parse XML files in CDC Personal Profile?
Any help is appreciated!!

Try kXML. It should work on any Java platform.

CDC/Personal Profile Platform Emulator

Hi,
I am a new J2ME developer. Earlier I was working on Swings in Java. I am working on netbeans 6.0 now. I just want to know what are the emulator/SDK available for CDC/Personal Profile1.0. I have already dowloaded the CDC Toolkit form Sun and integrated with Netabeans. Now I am looking an emulator for Personal Profile 1.0. Please help me in finding emulator and integrating with netbeans.
Thanks in advance

Try kXML. It should work on any Java platform.

How could I use native methods in CDC-Personal Profile?

Hi, I know that CDC-Personal profile doesn�t support JNI (I think so), but i think that must be a way to use native methods in an application written with Personal Profile. Thank you very much

I'm esperiecing the JBluez executing in a CVM for Linux...all seems work well, and i know that only the CLDC doesn't support JNI but CDC support it. You only need to follow theinstructoins valids for use JNI with J2SE, if i'haven't readed bad, CDC is Java 1.3 compliant...
I hope this could clarify your ideas
Andrew

Java Profiler for RMI Applications

I am looking for a profiler to monitor the bottlenecks and the memory usage when running my RMI application.
What would you recommend to use and a comprehensive tool

Couple of thoughts on scaling:
1. Change the mx setting to 1200m -- this is the most you can scale a single instance on 32-bit
2. Use a 64-bit platform you can set memory settings really high (AIX/Solaris)
3. Multiple servers with planning on it using a load balancer
Regards,
John A. Booth
http://www.metavero.com

Compiling CDC/ Foundation Profile and Personal Profile in RedHat 7.3

When I compile the CDC/Personal Profile,in RedHat 7.3,I get this message:
../share/rules.mk:235: ../../build/linux-i686/generated/empty.mk: No such file or directory
... mkdir ../../build/linux-i686/generated/javavm/runtime
touch ../../build/linux-i686/generated/empty.mk
... mkdir ../../build/linux-i686/generated/flags
error:compiler message file broken: key=compiler.err.sun.io.MalformedInputException arguments=null
,null,null,null,null,null,null
100 errors
make: ***[.compile.btclasses] Error1
And with CDC/Foundation Profile ,the message is:
error:compiler message file broken: key=compiler.err.sun.io.MalformedInputException arguments=null
,null,null,null,null,null,null
100 errors
make: ***[.compile.btclasses] Error1
What can I do now!
Can you help me to solve this error?

Just do export LANG=en_US
also edit the /etc/sysconfig/i18n file entry for LANG to en_US instead of the UTF.8 stuff
I don't know the exact reason though.. this will work.
--Prasanna Kumar

Does CDC(PP profile) supprots ARM 7 platform?

Hi all:
Who can tell me the answer of this question, and where to get the cdc and pp profile implementation?

Yes,it is. I 'm porting CDC(foundation profile), and I encount many problems. If you have some experiences or you want to talk about it with me, please Email with me. [email protected] By the way, I'm a Chinese.

RMI profiles in CDC

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