Setting java runtime option through java program

I want to set java runtime options(like -verbose, -ea) through java program instead of setting them through command promt. (Like, I can set -D options through System.setProperty() method). Is there any way out?

I want to set java runtime options(like -verbose,
-ea) through java program instead of setting them
through command promt. (Like, I can set -D options
through System.setProperty() method). Is there any
way out?I don't think you can (at least not for the Sun JVM).
The command-line options for the JVM are used when the
JVM is created, which precedes the loading of the class
files representing your application. At that time it is too
late to set the start-up options for the JVM which is already
up and running.

Similar Messages

  • How to Increase Java Heap Size through Java Code. Increase inside Code?

    Hi All,
    I am using a third party tool. When i run a particular program it says OutOfMemory error. I like to increase heap size through Java Code before calling the particular Java application or Code..
    Is there is any way to set the Heap Size through Java Code in run time ???
    Pls Kindly help.
    Thanks.

    if you start the program with a -Xmx512m flag, the virtual machine gets half a gigabyte of memory to use (or that's the max it's allowed to use). All things run in the same virtual machine will have the same limit, third party tools run in the same virtual machine can't "not care about this" unless they're throwing OOMs themselves for some stupid reason.

  • The Outlook links do not connect to Firefox even after setting the customize option in Default Programs. Please help.

    The''' Outlook links do not connect to Firefox '''even after setting the customize option in Default Programs. Please help.

    Message to Toad-Hall
    Thank you, for that. To be sure, I tried your suggestion, and selected "System Proxy" as the choice, for Thunderbird and Firefox. Rebooted, and looked at the outcome.. NO Joy.. :-(
    I believe that I shall send the output of the Error Log in my next post. Perhaps someone can point me in the right direction after looking at the Error.log.
    Thank you...Toad Hall. If you think of something else to try, I am ALL ears.. I shall keep trying..

  • Java Runtime.exec running java problem

    Hi, I have a simple server application, which I would like to run in the background. The following line works for me:
    Runtime.getRuntime().exec("cmd /c start java -jar ..\\server\\server.jar -Dlog4j.configuration=file:src\\test\\resources\\log4j.properties -filename src\\test\\resources\\server.properties");But it displays the cmd window and I am unable to destroy it. So I would like to use
    Runtime.getRuntime().exec("java -jar ..\\server\\server.jar -Dlog4j.configuration=file:src\\test\\resources\\log4j.properties -filename src\\test\\resources\\serverIntegration.properties");But it simply doesn't connect to the server. That means, it starts some java process in the background, but my client fails to communicate (i dont know whether the server doesnt respond or the client fails to send the message, but still, with the cmd /c start it works). So why is that?
    A related question. How do I end the process? It is a server that "doesn't end". So I have to kill it and I would assume, that running the java only command would be capable to be destroyed, but with the cmd I have no luck there. I have already tried full paths and the overload of exec with String[] params.

    Read [_When Runtime.exec() won't_|http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html].
    One reason why your server doesn't run is that it might be writing stuff to stdout (a.k.a System.out). And if your process doesn't read the newly created process' stdout, then that other process will block until something is read (which will be never).
    Read all of the pages of that article and follow its suggestions.

  • Typical problem - Will Java Runtime options help me ?

    Hi,
    We are using JInitiator to launch our application.When launching, this application downloads the ".JAR" files which are in server .I'm able to get the handle of the application and access all the Methods and properties from Visual Basic 6.0. But the problem is that I'm able to call methods which accepts only Integer or String as arguments.
    I'm unable to call the methods which has argument type as Boolean [ Ex : Win.setVisible( Boolean b)  ]. I tried passing all types of VB variables ,But I get "Type Mismatch Error" . I found an application which is similar to mine that uses "-Xbootclasspath" , "-Xrunmicsupp" , "MIC_CLASSES" & "_classload_hook" options to control Java applications by overriding some classes.
    I created a new class with the same name but which has an extra function to accept string as a parameter [ Win.setVisible( String b) ] that enables me to call from VB. I want to Override my application's class with my class file which is in my local system. I want to override it because I'm supposed to change the class file in the server.
    Is it possible to do my task using " java -Xbootclasspath" or something similar to that ? If so, Please tell me the way to do this. Please point me to some sites where in i can find the details about the above options that which the application similar to mine is using. Please help me,I will be very thankful to you guys.Hope to see your replies soon.
    Thanks and Regards,
    Srinivas.

    D:\>javac AnimalTest.java
    .\Cat.java:4: illegal start of expression
    ^You really need to start to understand what you are doing. Look at the error, it even points to what the error is. Look at where this bracket appears in your code and think to yourself "Should that be there or should it be something else" Once you fix that, the other errors will probably disappear.
    Stoopid lag.
    Message was edited by:
    flounder

  • JDK7 INSTALLATION FAILS WITH ERROR CANNOT FIND REQUIRED JAVA RUNTIME ENVIRONMENT

    Hi
    I am trying to install jdk7 on windows7 through command line with command java_ee_sdk-6u4-jdk7-windows-x64 -j "C:\Program Files\Java\jre7\bin". But it fails with error cannot find required java runtime environment in C:\Program Files\Java\jre7\bin. I have set the java_home and path environment variables to above path. Also I tried instaling through installer but it gave same error with null in path. Can anyone help?

    Hi
    I am trying to install jdk7 on windows7 through command line with command java_ee_sdk-6u4-jdk7-windows-x64 -j "C:\Program Files\Java\jre7\bin". But it fails with error cannot find required java runtime environment in C:\Program Files\Java\jre7\bin. I have set the java_home and path environment variables to above path. Also I tried instaling through installer but it gave same error with null in path. Can anyone help?

  • What is java runtime environment.

    hai,
    what is the functionality of jre. what it will do . what type of functions it handles. is there handles any system functions.

    Basically JRE is the sofware that enables a computer of any end-user to run java applications.
    It has support for Applet plug-ins for miscellaneous web browsers.
    It has support for Java WebStart, a possibility to distribute applications through the internet.
    If you create an own java application, you sell this app to end-users.
    Possibly they have to install a JRE first from java.sun.com.
    Linux, MacOS, Solaris come with a JRE preinstalled, many high-end distributions also.
    In the development kit for the java programmer, there is more: java compiler, optional packages,
    java documentation etcetera.
    The JRE is sufficient for most things.

  • Calling web service scenario through java console application

    hi all,
    I was able to invoke webservice through XML spy by following this link
    "/people/siva.maranani/blog/2005/09/03/invoke-webservices-using-sapxi
    But in real time environment client may not accept XML spy to run webservice application..So can any assist me how can i send and receive soap requests through Java application.
    If it is not possible by using java , please give reason as well....
    If it possible, please provide a blog or relevent information to the above request.
    Thanks..

    HI,
    This is possible to use from JAVA code , either through Java proxy , or you can directly send to IE.
    See the below links
    Communication between SAP System & Webservice Using Proxies - /people/siva.maranani/blog/2005/05/23/communication-between-sap-system-webservice-using-proxies
    https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/webas/java/integrating%20web%20dynpro%20and%20sap%20xi%20using%20jaxb%20part%20ii.article
    https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/10d1bde2-699f-2910-8e86-f46bfe045fdc
    Regards
    Chilla

  • How to compile dunamically genrated java files through java program?

    Hi, I have a requirement where i generate java files from WSDL dynamically using wsdl2java jaxbri. I need to compile these files dynamically on the fly and jar it. Everything should happen through java program. Bcos everything is dynamic here, no information is known (like dir, file names ...) until the runtime. Everything is user fed.
    the directories may contain other directories with java files. its recursive
    i tried com.sun.tools.javac.Main.. but either its not scaling to my needs or i donno how to wok with this.
    is there any option to compile the java files as they are created thru JAXBRI (wsdl2java)?
    any help is appreciated..
    -s

    my requirement is :
    i create java files from wsdl2java (axis).. i need to compile all the java files.. directories with in the directories (recursive)...
    as bcos the the java files have inter-dependencies they have to be compiled as a bunch something like (java *.java). I donno how to do this in javac.Main tool
    Once all these files are compiled i need to create a jar out of them
    Any help is appreciated!

  • How to override runtime parameters of Java programs in web browser windows?

    Hi Oracle forumers,
    There's a Java based program that is accessed through a web browser. The program somehow sets its own runtime parameters. However, those parameters don't always work well for running the program on every computer. Is there a way to override the runtime parameters that the program would normally set with my own parameters? I was expecting the Java Control Panel applet to be the place to set my own runtime parameters but the last time I checked that didn't work with this program.

    Sangeetha Kalyani,
    Use SWF de-compiler.. and get the source of your SWF.. i think this will simplyfy your JOB...!
    Thanks,
    Pradeep

  • How to change system time through java program

    Hi
    I want to know, how to change system time through java program.
    give me a idia with example.
    Thanks

    There isn't any core Java API for this. Use JNI or call an external process with Runtime.exec().
    ~

  • How to send sms through java program?

    hi,
    i am trying to send sms through java program.i am usining ubuntu 6.04.i am using modem MC35i.i use the jSMSEnjine.jar and rxtxcomm.jar.
    these are the following program.
    import org.jsmsengine.*;
    import java.util.*;
    class SendMessage
         public static void main(String[] args)
              int status;
              // Create jSMSEngine service.
         CService srv = new CService("Com2",9600);
              //CService srv = new CService("COM2",9600);
              System.out.println();
              System.out.println("SendMessage(): sample application.");
              System.out.println(" Using " + srv._name + " " + srv._version);
              System.out.println();
              try
                   //     Initialize service.     
                   srv.initialize();
                   Thread thread =Thread.currentThread();
                   thread.sleep(1000);
                   System.out.println(srv);
                   //     Set the cache directory.
                   srv.setCacheDir(".\\");
                   //     Set the phonebook.
                   //     srv.setPhoneBook("../misc/phonebook.xml");
                   //     Connect to GSM device.
                   status = srv.connect();
                   //     Did we connect ok?
                   int st=CService.ERR_OK;
                   System.out.println(st);
                   System.out.println(status);
                   if (status == CService.ERR_OK)
                        //     Set the operation mode to PDU - default is ASCII.
                        srv.setOperationMode(CService.MODE_PDU);
                        // Set the SMSC number (set to default).
                        srv.setSmscNumber("");
                        //     Print out GSM device info...
                        System.out.println("Mobile Device Information: ");
                        System.out.println("     Manufacturer : " + srv.getDeviceInfo().getManufacturer());
                        System.out.println("     Model : " + srv.getDeviceInfo().getModel());
                        System.out.println("     Serial No : " + srv.getDeviceInfo().getSerialNo());
                        System.out.println("     IMSI : " + srv.getDeviceInfo().getImsi());
                        System.out.println("     S/W Version : " + srv.getDeviceInfo().getSwVersion());
                        System.out.println("     Battery Level : " + srv.getDeviceInfo().getBatteryLevel() + "%");
                        System.out.println("     Signal Level : " + srv.getDeviceInfo().getSignalLevel() + "%");
                        //     Create a COutgoingMessage object and dispatch it.
                        //     *** Please update the phone number with one of your choice ***
    // String smsLengthTest="Hi"+"\nTesting is going on.Test for sending unlimited number of charecter.So you will get N number of SMS.Initially I trancate the whole string by 70 charecter.Later I will put it upto 90 charecter.Some chararecter should kept for header portion.I don't know the total number.It is just test.If you got the sms u should appreciate me...This is Ripon...I have written sms program";
    String smsLengthTest="Hi\n"+"This is Govindo";
    int mao=smsLengthTest.length();
    System.out.println("Length of sms :"+mao);
    String smsNo="9433314095";
    smsNo="+91"+smsNo;
    if(mao<70)
    COutgoingMessage msg = new COutgoingMessage(smsNo,smsLengthTest);
    //     Character set is 7bit by default - lets make it UNICODE :)
    //     We can do this, because we are in PDU mode (look at line 63). When in ASCII mode,
    //          this does not make ANY difference...
    msg.setMessageEncoding(CMessage.MESSAGE_ENCODING_UNICODE);
    if (srv.sendMessage(msg) == CService.ERR_OK) System.out.println("Message Sent!");
    else System.out.println("Message Failed!");
    else
    // COutgoingMessage msg = new COutgoingMessage(smsNo,smsLengthTest);
    // LinkedList messageList;
    // messageList = new LinkedList();
    // messageList.add(msg);
    // LinkedList maooo=new LinkedList();
    // maooo=srv.splitLargeMessages(messageList);
    int sizelength=0;
    int counter=0;
    sizelength=smsLengthTest.length();
    System.out.println("SMS length :"+sizelength);
    int smsCntr=sizelength/70;
    System.out.println("smsCntr :"+smsCntr);
    counter=smsCntr+1;
    int j=70;
    int k=0;
    try
    for(int i=0;i<smsCntr;i++)
    String test="";
    test=test+i;
    test=smsLengthTest.substring(k,j);
    System.out.println(test);
    System.out.println(test.length());
    COutgoingMessage msg = new COutgoingMessage(smsNo, test);
    System.out.println("hi this is suman" + smsNo);
    //     Character set is 7bit by default - lets make it UNICODE :)
    //     We can do this, because we are in PDU mode (look at line 63). When in ASCII mode,
    //          this does not make ANY difference...
    msg.setMessageEncoding(CMessage.MESSAGE_ENCODING_UNICODE);
    if (srv.sendMessage(msg) == CService.ERR_OK) System.out.println("Message Sent!");
    else System.out.println("Message Failed!");
    k=k+70;
    j=j+70;
    catch(Exception e)
    System.out.println("Error...1");
    e.printStackTrace();
    e.getMessage();
    String lastPortion=smsLengthTest.substring(k);
    System.out.println(lastPortion);
    COutgoingMessage msg = new COutgoingMessage(smsNo, lastPortion);
    //     Character set is 7bit by default - lets make it UNICODE :)
    //     We can do this, because we are in PDU mode (look at line 63). When in ASCII mode,
    //          this does not make ANY difference...
    msg.setMessageEncoding(CMessage.MESSAGE_ENCODING_UNICODE);
    if (srv.sendMessage(msg) == CService.ERR_OK) System.out.println("Message Sent!");
    else System.out.println("Message Failed!");
                        // Disconnect from GSM device.
                        srv.disconnect();
                   else System.out.println("Connection to mobile failed, error: " + status);
              catch (Exception e)
                   e.printStackTrace();
              System.exit(0);
    the error is:
    SendMessage(): sample application.
    Using jSMSEngine API 1.2.6 (B1)
    org.jsmsengine.CService@addbf1
    0
    -101
    Connection to mobile failed, error: -101
    please help me,its very urgent.

    come back in about 5 years, we may have time for you by then.
    In the meantime, how about contacting the people who wrote that library and asking them nicely for help (rather than trying to order people to drop whatever they're doing and jump through hoops to accommodate your every wish as you're doing here)?

  • Want to access RESTful Services through Java Program

    We are trying to access RESTful Services exposed by Oracle database cloud through our Java code, with authentication enabled for a particular user.
    Till now, we have completed below steps:
    1) We have a working account with Oracle database cloud (Username – xxx.xxx)
    2) We log in using the credentials for above account, and navigate to Oracle Apex ? SQL Workshop ? RESTful Services
    3) We create a new “RESTful Service Module” by filling out the details as below:
         Name:                                  SampleTest 
         URI Prefix:                            test
         URI Template:                       /getallemp
         Pagination Size:                    25 (kept to default)
         Required Privilege:                 TestGroupPrivilege
         Resource Handler Details:
                    Method:              GET
                    Source Type:      Query
                    Format:               JSON
                    Source:               select * from emp
    After creating the above module and testing it, it works fine and the data is retrieved in JSON successfully.
    The resulting URL for above RESTful Service Module is: https://<HOST_URL>/apex/test/getallemp
    Note that “TestGroupPrivilege” is a privilege assigned to the user group “RESTful Services” and the user “xxx.xxx” is a member of “RESTful Services” user group.
    4) We are unable to call the RESTful services from Java program. We are passing username and password in request header as basic authentication. But, we are getting: Error 500--Internal Server Error
    5) If we change the “Required Privilege” to default i.e. no privileges present on the module, we can get the response through Java code and everything works perfectly fine.
    Please suggest us in: How to access RESTful Services through Java code by passing user credentials in HTTP header for authentication. Also let us know if we have to do any settings through Apex, in case we are missing any.
    Message was edited by: NeerajGirolkar
    - When we are logging in to Oracle cloud on browser and execute the Oracle cloud RESTful service in another tab of same browser, we are able to get the result. But when executed the same RESTful service from a different browser or java program we get internal server error.
    - After investigation, we found that when user logs in to oracle database cloud, a cookie is set in browser with name s “OAMAuthnCookie_cstest-domo.db.us1.oraclecloudapps.com:443” and value as some random token. This cookie is passed in the subsequent requests to the RESTful Service calls when using same browser and as a result, we are able to get the results
    - In the Java program, we copied the same cookie with random token in the HTTP Request header and we got the proper response from REST APIs.
    - It seems that this cookie is created by an Oracle Middleware tool/server called as OAM – Oracle Accounts Manager, which sends the authentication token after successful authentication and creates the cookie.
    - We found that the cookie that OAM creates on authentication is exactly in the same format i.e. ‘OAMAuthnCookie_cstest-domo.db.us1.oraclecloudapps.com:443’. So, we are guessing that Oracle cloud uses OAM for authentication. Please refer to following link for same : http://docs.oracle.com/cd/E14571_01/doc.1111/e15478/sso.htm
    Can anyone please suggest:
    1.     How to provide authentication to Oracle Cloud REST APIs from java program?
    2.     How to pass the username and password in Java code to OAM (or how to communicate with OAM using Java) so that we can receive the unique token from OAM. We can use the token in the further requests? 3.     Also in Oracle cloud white papers , it is mentioned that they support OAuth2.0. But we didn’t find any URLs for same. Can anyone please confirm?
    Thanks
    ~ Neeraj Girolkar

    Hi Nilesh,
    We tried to connect to Oracle Cloud Database using the way you suggested above, but unfortunately it is not working as well.
    Can you let us know the authentication process with Oracle Cloud Database? We found in documentation that it uses OAM (Oracle Access Manager) for authentication. Can you tell us a bit about that? That will be extremely helpful.
    Thanks,
    - Neeraj

  • Accessing RUN through java programming

    Sir,
    i need to develop a java application t access "run" in start menu.How can i access the run menu through java programming.?I want to run the program in the run command when we input command through the java program..please help me..if you have the code palese send it tio me please..........

    But I cant access the drives for eg: I wrote c:\programfiles as input but i got an exception like this
    error=3
    at java.lang.ProcessImpl.create(Native Method)
    at java.lang.ProcessImpl.<init>(ProcessImpl.java:81)
    at java.lang.ProcessImpl.start(ProcessImpl.java:30)
    at java.lang.ProcessBuilder.start(ProcessBuilder.java:451)
    at java.lang.Runtime.exec(Runtime.java:591)
    at java.lang.Runtime.exec(Runtime.java:429)
    at java.lang.Runtime.exec(Runtime.java:326)
    at ex.main(ex.java:10)
    how can correct this error...

  • Invoke exe through java code(using java.lang.Runtime)

    Iam trying to invoke an exe from java code.If i give the complete path for that exe it is running fine .But if i set the environment variable and directly execute the exe through command prompt it iss running fine , but it fails to run when i do the same using java code i.e. java.lang.Runtime.exec function

    Give "//" for directory seperator.
    E.g. r.exec("c://test//test.exe",null);
    Why? That doesn't look correct.It is correct. It will work fine. Try it out.But it doesn't add or solve anything. A forward slash
    does not need to be escaped.'
    It's not even escaping. It's just doubling up. If that works, I'd bet "C://///test///////test.exe" does also.

Maybe you are looking for

  • Practicount Software...for mac

    I want to use the program, or any similar Transcriptionist Line/word count program...anyone know if Mac has such a software program...I can exchange Word related material no problem, but need a native professional line count software program... thank

  • BAPI_ACC_DOCUMENT_POST used to post as in F-22

    Hi all, I am trying to use BAPI , BAPI_ACC_DOCUMENT_POST to simulate posting via F-22 . Is it possible? If yes, where can i specify transaction name F-22 ? Please let me know. Thanks in advance! Regards, Kumail

  • Blue Tint Started after I set up TV monitor: dual g5 2.0Ghz

    Machine: Dual 2GHz PowerPC G5 10.4.6 with Lacie Electron Blue 22 connected to it. ATI Radeon 9650 Driving it. Problem: It was working fine. Now it has blue tint (haze) to it. It looks like somebody put a piece of blue plastic wrap in the front of the

  • Unable to open Sony A77II Raw files in PSE11. [was: Camera raw]

    I have the Sony A77 ii and i cannot open the Raw files in Elements 11.  It says the file appears to be from a camera model that is not supported by the installed version of Camera Raw.  I have the latest version installed.  Does anyone else have this

  • How to open one view in another view?

    There are 2 iViews in my page. In first iView ther re some hyperlinks. When i click on these links the target should open in the next iView. Can any one help me? I'm a fresher to this EP6.0. NOTE:- When i clicked the link it is navigating to other wi