Cannot find java.lang.Object

hi, all. i tried compiling my class using KToolbar but it cannot load some of my classes on the other package. so i tried compiling it using the command line. I am encountering a problem and the error message is that it cannot find the java.lang.Object. I already included tools. jar in my classpath but it didn't work. Do you know guys, what I am missing?
Thanks,
Pulat

c:\j2mewtk\libs\midpapi.zip has to be in your classpath
rob,

Similar Messages

  • Cannot find Java Source Objects

    How do I view the java source code in my own account. I dont see it anywhere in the object tree? However, when I do use the report tool and seach the source I can view it.
    Shouldn't I be able to see java code just like I can see PL/SQL code... eh? bug? operator error? :)
    Thanks..
    Message was edited by:
    Mark Reichman

    Uh, but if I have 20 or 30 Java objects in my account I would at least like to see them?
    I just saw this statement on the SQL Developer Statement of Direction page.
    JDeveloper and SQL Developer
    The plan is to incorporate the functionality in SQL Developer into a future release of JDeveloper.
    Seems as though Oracle should have just added this 'SQL Developer" functionality to JDeveloper to begin with and not even had this separate "SQL Developer" tool. I always thought JDeveloper lacked some these SQL Developer features anyway. Doesnt JDeveloper allow me to edit PL/SQL? Yes. Whats the problem with SQL Developer allowing me to edit Java? We have a lot of java and plsql in our schemas and having separate tools doesnt really make sense to me? And I hate to say it but other tools like SQL Developer let me view and edit my java objects. This is not going to go over well here at all and may prevent migration away form other SQL Developer like tools. Its almost like SQL Developer is half a tool then since I can only see "most" of my DB objects?
    One of the nice things about SQL Developer is that it is light weight and easy to learn as compared to JDeveloper. IMHO...
    Is this true or are Java objects being added in 1.1 to the tree? Now I'm bummed. Tell me it isnt so. :)
    Message was edited by:
    Mark Reichman

  • Mandrake 7.2 Cannot find java/lang/Thread (8.1.5)

    I have read all the old messages relating to this problem but I still cannot install 8.1.5
    I have also read some of the pages written by jmsalvo and fortwayne all to no avail...
    I downloaded glibc jre116v5 and jre117v3
    Created symbolic link as per instructions
    [ln -s /usr/jre116v5 /usr/local/jre]
    I have tried setting CLASSPATH=/usr/local/jre/lib/rt.jar
    and unsetting it..
    I have even downloaded the JDK 116v5 and tried that as well with a 'rt.jat' symbolic link to the classes.zip
    I have taken care to remove any other paths to exisiting java runtimes etc.. but still it wont play.. I am tering my hair out. I understand that versions 8.1.6 and 8.1.7 are less painful but my link is not fast enough to download them.
    I am also running runIns.sh as oppossed to runInstaller.. but I keep getting the same error messages. Does anyone out there have any iedas.. I would be most grateful for any help
    Thanks
    lawrence
    null

    I have managed to get it working.. it needed JRE118v3..
    thanks
    lawrence (minus a few hairs)

  • Custom ClassLoader - fails to load java/lang/Object

    I have created a custom class loader based substantially on Jim Farley's code in "Java Distributed Computing" pp 39-44.
    The code does get a URL connection, download the class file, but fails when it tries to load (re-load) java/lang/Object. My understanding is that the same (custom) class loader is also used to load dependent classes (needed by the class your are originally loading). I had assumed that this would be handled by the call to findSystemClass() I had assumed.
    Any help or direction is appreciated,
    Jeff.
    Here is the output:
    File=/tasks/Person.class
    Host=n01
    Trying to load:/tasks/Person
    Check system :/tasks/Person
    Not found in System:/tasks/Person
    Check stream:/tasks/Person
    Class file is 815 bytes.
    Available = 815
    RemoteClassLoader: Reading class from stream...
    RemoteClassLoader: Defining class...
    java.lang.ClassNotFoundException: Cannot find class definition:
    java.lang.NoClassDefFoundError: java/lang/Object
         at java.lang.ClassLoader.defineClass0(Native Method)
         at java.lang.ClassLoader.defineClass(ClassLoader.java:486)
         at java.lang.ClassLoader.defineClass(ClassLoader.java:426)
         at RemoteClassLoader.readClass(RemoteClassLoader.java:83)
         at RemoteClassLoader.loadClass(RemoteClassLoader.java:139)
         at TestRemoteClassLoader.main(TestRemoteClassLoader.java:18)
    Class was not loaded.Here is the code:
    import java.lang.*;
    import java.net.*;
    import java.io.*;
    import java.util.Hashtable;
    public class RemoteClassLoader extends ClassLoader {
       URL classURL = null;
       InputStream classStream = null;
       java.lang.Object o = null;
       Hashtable classCache = new Hashtable();
       InputStream source = null;
       // Constructor
       public RemoteClassLoader()
       // Parse a class name from a class locator (URL, filename, etc.)
       protected String parseClassName(String classLoc)
          throws ClassNotFoundException
             String className = null;
             try { classURL = new URL(classLoc); }
             catch (MalformedURLException malex) {
                throw new ClassNotFoundException("Bad URL \"" + classLoc + "\"given: " + malex);
             System.out.println("File=" + classURL.getFile());
             System.out.println("Host=" + classURL.getHost());
             String filename = classURL.getFile();
             // Make sure this is a class file
             if (!filename.endsWith(".class"))
                throw new ClassNotFoundException("Non-class URL given.");
             else
                className = filename.substring(0,filename.lastIndexOf(".class"));
             return className;
       // Initialize the input stream from a class locator
       protected void initStream(String classLoc)
          throws IOException
             classStream = classURL.openStream();
       // Read a class from the input stream
       protected Class readClass(String classLoc, String className)
          throws IOException, ClassNotFoundException
             //See how large the class file is.
             URLConnection conn = classURL.openConnection();
             int classSize = conn.getContentLength();
             System.out.println("Class file is " + classSize + " bytes.");
             // Read the class bytecodes from the stream
             DataInputStream dataIn = new DataInputStream(classStream);
             int avail = dataIn.available();
             System.out.println("Available = " + avail);
             System.out.println("RemoteClassLoader: Reading class from stream...");
             byte[] classData = new byte[classSize];
             dataIn.readFully(classData);
             // Parse the class definition from the bytecodes
             Class c = null;
             System.out.println("RemoteClassLoader: Defining class...");
             try{ c = defineClass(null, classData, 0, classData.length); }
             catch (ClassFormatError cfex) {
                throw new ClassNotFoundException("Format error found in class data.");
             catch (NoClassDefFoundError clsdeferr) {
                clsdeferr.printStackTrace();           
                throw new ClassNotFoundException("Cannot find class definition:\n" + clsdeferr);
             return c;
       // load the class
       public Class loadClass(String classLoc, boolean resolve)
          throws ClassNotFoundException
             String className = parseClassName(classLoc);
             Class c;
             System.out.println("Trying to load:" + className);
             //maybe already loaded
             c = findLoadedClass(className);
             if (c!=null) {
                System.out.println("Already loaded.");
                return c;
             c = (Class) classCache.get(className);
             if (c!=null) {
                System.out.println("Class was loaded from cache...");
                return c;
             System.out.println("Check system :" + className);
             // Not in cache, try the system class...
             try {
                c = findSystemClass(className);
                if (c!=null) {
                   System.out.println("System class found...");
                   classCache.put(className, c);
                   return c;
             catch (ClassNotFoundException cnfex) {
                System.out.println("Not found in System:" + className);
                ; // keep looking
             System.out.println("Check stream:" + className);
             // Not in system either, so try to get from tthe stream
             try {initStream(classLoc); }
             catch (IOException ioe) {
                throw new ClassNotFoundException("Failed opening stream to URL.");
             // Read the class from the input stream
             try {c = readClass(classLoc, className); }
             catch (IOException ioe) {
                   throw new ClassNotFoundException("Failed reading class from stream: " + ioe);
             // Add the new class to the cache for the next reference.
             classCache.put(className, c);
             // Resovle the class, if requested
             if (resolve)
                resolveClass(c);
             return c;

    Never mind - I've figure it out.
    The problem is that the ClassLoader calls RemoteClassLoader.loadClass() to load in java.lang.Object, which is fine. But, my code tries to first create a URL from this, which fails, eventually throwing a NoClassDefFoundError.
    I have fixed it by delaying the call to parseName() until after checking loaded classes and system classes.

  • Java/lang/NoClassDefFoundError: java/lang/Object

    Hi Experts,
    We are installing Java "1.6.0_31.We have updated the environment variables with the correct Java Path but which checking the java -version we are getting the following error.
    java -version
    Error occurred during initialization of VM
    java/lang/NoClassDefFoundError: java/lang/Object
    hence the DAC service is not starting giving the following error.
    startserver.h: startserver.h: cannot open
    OS detected: SunOS
    ld.so.1: java: fatal: libjli.so: open failed: No such file or directory
    Killed
    Following are the environment variable entries.
    PATH=/opt/SUNWspro/bin:/../oracle/product/10.2.0/client_1/bin:/.../Informatica/PowerCenter8.6.1/server/bin:/usr/sfw/bin:/...../JAVA631/jdk1.6.0_31/bin/sparcv9:/.../JAVA631/jdk1.6.0_31/lib:/..../JAVA631/jdk1.6.0_31/jre/lib/sparcv9/jli:/...../JAVA631/jdk1.6.0_31/jre/lib/sparcv9:$PATH
    export PATH
    Need ur support.
    Thanks

    Where do you run shell script?
    What's your Oracle's version?
    What's text of your shell script?
    By asking 100 questions and keeping 90 of them "unanswered" you throw yourself to the list of "blacklist users"
    Kamran Agayev A. (10g OCP)
    http://kamranagayev.wordpress.com
    [Step by Step install Oracle on Linux and Automate the installation using Shell Script |http://kamranagayev.wordpress.com/2009/05/01/step-by-step-installing-oracle-database-10g-release-2-on-linux-centos-and-automate-the-installation-using-linux-shell-script/]
    Edited by: Kamran Agayev A. on May 19, 2009 1:28 PM

  • Sort(java.util.LinkedList java.lang.Object ) doesn't work

    Why doesn't this work?
    LinkedList<Object> sysPropsKeys = new LinkedList<Object>(System.getProperties().keySet());
    Collections.sort(sysPropsKeys);
    cannot fnd symbol
    symbol : method sort(java.util.LinkedList<java.lang.Object>)
    location: class java.util.Collections

    I will admit to not having Java1.5 installed on my machine. Haven't yet had the chance to play with generics, but the above DOES work in 1.4, and SHOULD work in 1.5
    Maybe I'm naive but, System.getProperties() returns a Properties object right?
    According to the API: http://java.sun.com/j2se/1.5.0/docs/api/java/util/Properties.html: Each key and its corresponding value in the property list is a string.
    All the keys SHOULD be strings.
    AFAIK string are comparable, and shouldn't throw class cast exceptions
    Thus the keys returned from getProperties SHOULD be comparable, and compatible for comparision.
    Ok, I can see your point in that some hackers abuse the Properties class by putting non string keys/values into the Properties Map. In that case the code would become more like your above. I'd probably still go with a TreeMap though, rather than a sorted list of keys. Most time you want the keys, you want the values as well. So if the intention is to print out a sorted list of system properties, and their values, keeping it in a map is best.
    Just my 2 cents,
    evnafets

  • Error: initialization error: file java\lang\Object.class not found

    when the error listed my classpath's its not the same list that is in my Windows XP environment variable list?
    I am on 9.0.3
    I am assuming I have to set some varible to my new jdk\bin directory. I reinstalled it. I have set it to use jdk 1.4 using the ojvm tool a while back.

    Please help!!
    I did change the jdev.conf file setting:
    SetJavaHome /System/Library/Frameworks/JavaVM.framework/Versions/1.4.2/Home
    and I still get this error:
    initiallization erro: file java/lang/Object.class not found in classpath
    I am usgin Oracle JDeveloper 10g 10.1.2 on a Mac OS X Tiger
    Could someone please help?
    thanks a bunch!!!

  • Error: invalid file 'java/lang/Object.class' (wrong version: 48, expected 4

    hi all
    ive installed jdk1.4.1 from jdk1.3 .
    When i try to compile a java file i get this error.
    Error: invalid file 'java/lang/Object.class' (wrong version: 48, expected 45)
    anyone has any idea abt this.
    im stuck :( pls help.
    thanks
    Jan

    Did you uninstall 1.3 completely? Completely in the sense both jdk and jre.
    You may get this error if you use javac of one version and the rt.jar of another version.
    Sudha

  • Oracle Access Manager Configuration : Cannot find the Person Object Class

    Hi,
    I am trying to install OAM , I am getting the following error when i am configuring the Identity server for the first time.
    1) I have installed OID. I am using one OID for both config and user data.
    2) I have installed Identity server and have modified the OID schema automically during installation.
    3) I have installed web pass.
    I have gone to the url: http://trn-ps-oid.oracle.com:7777/identity/oblix
    Here i gone to Identity System Console to configure Identity server.
    Following are the config data i have given
    Configuration DN : dc=mydomain,dc=com
    Search Base : dc=mydomain,dc=com
    Host : mypc.mydomain.com
    Port Number : 389
    Root DN : cn=orcladmin
    Root Password : *******
    Directory Server Security Mode : Open
    Is the Configuration data stored in this directory also : Yes
    Person Object Class : inetorgperson
    Auto configure objectclass : yes
    Group Object Class : groupOfUniqueNames
    Auto configure objectclass : yes
    After this I have clicked on the restart server button.
    It comes back to the page asking to enter Person Object class details.
    I Get the Error : Cannot find the Person Object Class.
    I have checked the object class in OID it is there, I have verified the connection details are also correct.
    Any Ideas what might be wrong.
    Earlier during setup i had to modify the OID schema, how do i check if this has been done.
    Any Ideas

    <?xml version="1.0" encoding="utf-8"?>
    <ValNameList
    xmlns="http://www.oblix.com"
    ListName="setup.xml">
    <NameValPair
    ParamName="mainOIS"
    Value="true"></NameValPair>
    <NameValPair
    ParamName="currentStep"
    Value="LDAP_CONFIG_CHANGES"></NameValPair>
    <NameValPair
    ParamName="status"
    Value="incomplete"></NameValPair>
    <NameValPair
    ParamName="whichDB"
    Value="OID"></NameValPair>
    <NameValPair
    ParamName="dataDirCopied"
    Value="TRUE"></NameValPair>
    <NameValPair
    ParamName="machineNo"
    Value="localhost"></NameValPair>
    <NameValPair
    ParamName="portNo"
    Value="389"></NameValPair>
    <NameValPair
    ParamName="rootDN"
    Value="cn=orcladmin,cn=Users,dc=mydomain,dc=com"></NameValPair>
    <NameValPair
    ParamName="ldapRootPasswd"
    Value="**************"></NameValPair>
    <NameValPair
    ParamName="securityMode"
    Value="Open"></NameValPair>
    <NameValPair
    ParamName="oblixUserDataSame"
    Value="Yes"></NameValPair>
    <NameValPair
    ParamName="searchBase"
    Value="dc=mydomain,dc=com"></NameValPair>
    <NameValPair
    ParamName="configDN"
    Value="dc=mydomain,dc=com"></NameValPair>
    <NameValPair
    ParamName="obClassPerson"
    Value="inetorgperson"></NameValPair>
    <NameValPair
    ParamName="defaultConfigForPersonOC"
    Value="true"></NameValPair>
    <NameValPair
    ParamName="obClassGroup"
    Value="groupOfUniqueNames"></NameValPair>
    <NameValPair
    ParamName="defaultConfigForGroupOC"
    Value="true"></NameValPair>
    <NameValPair
    ParamName="obOldClassPerson"
    Value="inetorgperson"></NameValPair>
    <NameValPair
    ParamName="obOldClassGroup"
    Value="groupOfUniqueNames"></NameValPair>
    </ValNameList>

  • NoClassDefFound java/lang/Object error

    Hi all,
    I just tried to install JRE 1.4.1 on Win98 and encountered this error when I typed in java -version:
    error occurred during initialization of VM
    java/lang/NoClassDefFoundError: java/lang/Object
    After I installed I added SET CLASSPATH = and the path to my rt.jar and tools.jar to my autoexec.bat, but that didn't seem to work.
    Sorry about posting this here if it isn't appropriate, I tried a forum search but kept getting Server Error.
    Steve

    Look at this thread:
    http://forum.java.sun.com/thread.jsp?forum=54&thread=106425
    Think it is reply 3 or 4, where you have to rename the the java.exe file somewhere in your system path

  • Javah error java.lang.Object not found

    Hi guys-
    I'm trying to run a javah command to generate a .h file... I'm using windows2000 & jdk1.1.8... when I run the command from DOS prompt I keep getting the same eror as java.lang.Object not found: aborting.. I've checked all the classpath and it seems ok ... I have CLASSPATH=..;c:\jdk1.1.8\lib\classes.zip
    Can anybody help me with this???
    Thanx

    Maybe try ; right click my computer ,click the advanced tab and select enviroment variables,click on classpath and then edit,check if it's correct.I had the sam problem and that seemed to fix it. :)

  • Weblogic - a web service with java.lang.Object parameter

    hi all,
    i'm creating a web service with a java.lang.Object parameter.
    my question is as follows:
    when a client calls the web service, how to i get the soap message object and convert it to soap message string using the parameter?
    thanks,
    alex

    Here's some code from one of the Axis samples, this shows the basic process of making a call:
    package samples.message;
    import org.apache.axis.client.Service;
    import org.apache.axis.client.Call;
    import org.apache.axis.message.SOAPBodyElement;
    import org.apache.axis.utils.Options;
    import org.apache.axis.utils.XMLUtils;
    import org.w3c.dom.Element;
    import java.net.URL;
    import java.util.Vector;
    public class TestMsg {
    public String doit(String[] args) throws Exception {
    Options opts = new Options(args);
    opts.setDefaultURL("http://localhost:8080/axis/services/MessageService");
    Service service = new Service();
    Call call = (Call) service.createCall();
    call.setTargetEndpointAddress( new URL(opts.getURL()) );
    SOAPBodyElement[] input = new SOAPBodyElement[2];
    input[0] = new SOAPBodyElement(XMLUtils.StringToElement("urn:foo",
    "e1", "Hello"));
    input[1] = new SOAPBodyElement(XMLUtils.StringToElement("urn:foo",
    "e1", "World"));
    Vector elems = (Vector) call.invoke( input );
    SOAPBodyElement elem = null ;
    Element e = null ;
    elem = (SOAPBodyElement) elems.get(0);
    e = elem.getAsDOM();
    String str = "Res elem[0]=" + XMLUtils.ElementToString(e);
    elem = (SOAPBodyElement) elems.get(1);
    e = elem.getAsDOM();
    str = str + "Res elem[1]=" + XMLUtils.ElementToString(e);
    return( str );
    public static void main(String[] args) throws Exception {
    String res = (new TestMsg()).doit(args);
    System.out.println(res);

  • Mapping xsd:anyType element to Java.lang.Object

    Hi,
    I am using JAXB to parse a xml and in the XSD we have one element which is of the anyType and returns java.lang.object from JAXB generated classes. The issue is that when the node contains string and we type cast the returned object to string every thing runs fine but when the element contains embeded xml then the object returned can not be type cast to string.
    code snippet:
    *<xsd:element name="SignatureDefinition" type="xsd:anyType" />*
    and the xml I am parsing contains:
    *<SignatureDefinition>
    <a>name</a>
    <b> job</b>
    </SignatureDefinition>*
    That is the element contains a object which is a well formed xml.
    Can any one guide or provide me the pointers.
    Thanks
    Regards,
    Devesh

    Hello Devesh,
    The "SignatureDefinition" portion of the XML document should be unmarshalled as a DOM Element.
    File file = new File("any.xml");
    Root root = (Root) jaxbContext.createUnmarshaller().unmarshal(file);
    Element element = (Element) root.getSignatureDefinition();
    System.out.println(element.getTextContent());
    If "SignatureDefintion" is the root of the XML document, you should get a JAXBElement wrapping a DOM Element.
    File file = new File("any.xml");
    JAXBElement<Element> root = (JAXBElement<Element>) jaxbContext.createUnmarshaller().unmarshal(file);
    System.out.println(root.getValue().getTextContent());
    -Blaise

  • Finalizer.register(java.lang.Object)

    I need to know th use of Finalizer.register(java.lang.Object) method.
    Can someone please help me...Its urgent!!!!
    Thank you!!
    Message was edited by:
    Java_Freak

    I am instantiating a MQQueue object..... When I run
    the memory debugger it says a call is made to the
    Finalizer.register method and the FInalizer object is
    on heap even after the GC...Why is this a problem? If it is a problem again
    1) Consult the bug database
    2) Post formatted code that reproduces your problem.
    Other than that consult these
    http://java.sun.com/developer/technicalArticles/ALT/RefObj/
    http://www.javaworld.com/javaworld/javatips/jw-javatip79.html
    This is the best and only advice I can give you based on your problem description.

  • The first quthor of java.lang.Object

    The biggest mystery for me in Java still exists as to who really coded the mother of all classes java.lang.Object.
    Here�s what the source of it says in JavaDocs
    * Class <code>Object</code> is the root of the class hierarchy.
    * Every class has <code>Object</code> as a superclass. All objects,
    * including arrays, implement the methods of this class.
    * @author unascribed
    * @version 1.61, 01/23/03
    * @see java.lang.Class
    * @since JDK1.0
    public class Object {
    �
    See the annotation @author above, it says �unascribed� which means unknown. Any one who can solve this mystery for me and come up with the real author of this jni implementation class called �Object�
    I mean, the first one to code Object class...Please help me

    cross-post

Maybe you are looking for