Exception in thread "main" java.lang.NoClassDefFpondError: Test

I know that you've probably answered this a hundred times but I still have some questions about solutions that you guys have so kindly provided. So please bear with me, becuase I really need your help...
I have just installed the quicktime for java library, and now i get this horrible error message when I try and run a java program (who's only class is called Test and contains the "main" method).
I am using the Eclipse develpoment enviroment and Windows XP and had been messing around just trying to link liraries to the classpath from within Eclipse. So first I deleted (apparently this is how you uninstall Eclipse) the Eclipse program and downloaded the new version (3.0), and installed it.
I then decided that it was probably time that I upgrade to the new Java2 version 1.5.0. So I downloaded this and installed it on my computer.
I then linked the path (Start->Control Panel->System->Advanced->Environment Variables->Path) to the bin directory of my Java folder.
My Path looks like this: %SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;.;c:\msys\1.0\mingw\mingw\mingw32\bin;C:\Program Files\JProbe Profiler 5.2.1\bin;c:\Program Files\Java\jre1.5.0\bin;
Now I've heard it banded around that I need to make a change to the classpath, is that what I've done, because I've got another system variable called CLASSPATH that looks like this: "C:\Program Files\Java\j2re1.4.2_04\lib\ext\QTJava.zip"; As you can see this is just linking to the quicktime library.
I know that the problem is that java can't find the class called Test. I have added a dot(.) to the Path, I have tried to add a dot(.) to the CLASSPATH but I'm not exactly sure what the format is meant to be. If I type java -version at the command line then I get the correct version number back. If I try and run java Test from any file directory I get the same error message. This must be such an easy problem to solve but I knows not what it is!
Please help me.

replace the classpath by this
C:\Program Files\Java\j2re1.4.2_04\lib\ext\QTJava.zip"; C:\Program Files\Java\j2re1.4.2_04\lib\rt.jar;.

Similar Messages

Exception in thread "main" java.lang.NoClassDefFoundError: Test

Hi,
I have just installed J2SE 1.4.2 on my computer, and I am trying to compile and run a simple test program.
public class Test
public static void main (String[] args)
System.out.println("This is the skeleton for a program.");
I think it compiles ok but when i try to run it I get the following error:
Exception in thread "main" java.lang.NoClassDefFoundError: Test
Is there something else I need to install, or a setting that needs to be changed?
If anyone has any idea I would really appreciate it. Thanks

You also need to set your $CLASSPATH variable to the directory you have for class files. Set it to like CLASSPATH=/directory/classdirectory/:. and export CLASSPATH. You need to put these two in your profile file.
your profile should be reloaded for the variable to get set. Or you could set the variable on the command line before you run your program.
I hope this solves your problem. Most of the time this is the problem's solution.

Exception in thread "main" java.lang.NoClassDefFoundError: test/java

why do i get this error every time i try and run my code?

Sounds like you have a file test.java
compile it:
javac test.java
produces test.class
run it:
java test
sounds like you were trying something like this:
java test.java (WRONG)

Help me solving this exception: Exception in thread "main" java.lang...

Dear,
I have "test" class:
public class test{
public static void main(String argv[]){
System.out.println("Hello world!");
I use below command to compiler & run this class:
C:\> javac test.java
There is no problem and I get file: test.class
After that, I use:
C:\> java test
I meet this message and the class cannot be run:
Exception in thread "main" java.lang.NoClassDefFoundError: test
Please help me to solve this problem.
Regards,
Cuong Ha

before running set classpath
like this type in command prompt
suppose this class file in in folder c:\abc
set classpath=%classpath%;C:\abc\
and now run ur code
or
i think this is better solution not try aboce try this first
before running
type this
set path=%path%;c:\jdk1.3\bin
where 'c:\jdk1.3\bin' is the path where ur jdk is installed

HELP Needed with this error: Exception in thread "main" java.lang.NoClass

Folks,
I am having a problem connecting to my MSDE SQL 2000 DB on a WindowsXP pro. environment. I am learning Java and writing a small test prgm to connect the the database. The code compiles ok, but when I try to execute it i keep getting this error:
"Exception in thread "main" java.lang.NoClassDefFoundError: Test1"
I am using the Microsoft jdbc driver and my CLASSPATH is setup correctly, I've also noticed that several people have complained about this error, but have not seen any solutions....can someone help ?
Here is the one of the test programs that I am using:
import java.sql.*;
* Microsoft SQL Server JDBC test program
public class Test1 {
public Test1() throws Exception {
// Get connection
DriverManager.registerDriver(new
com.microsoft.jdbc.sqlserver.SQLServerDriver());
Connection connection = DriverManager.getConnection(
"jdbc:microsoft:sqlserver://LAPTOP01:1433","sa","sqladmin");
if (connection != null) {
System.out.println();
System.out.println("Successfully connected");
System.out.println();
// Meta data
DatabaseMetaData meta = connection.getMetaData();
System.out.println("\nDriver Information");
System.out.println("Driver Name: "
+ meta.getDriverName());
System.out.println("Driver Version: "
+ meta.getDriverVersion());
System.out.println("\nDatabase Information ");
System.out.println("Database Name: "
+ meta.getDatabaseProductName());
System.out.println("Database Version: "+
meta.getDatabaseProductVersion());
} // Test
public static void main (String args[]) throws Exception {
Test1 test = new Test1();

I want to say that there was nothing wrong
with my classpath config., I am still not sure why
that didn't work, there is what I did to resolved
this issue.You can say that all you like but if you are getting NoClassDefFound errors, that's because the class associated with the error is not in your classpath.
(For future reference: you will find it easier to solve problems if you assume that the problem is your fault, instead of trying to blame something else. It almost always is your fault -- at least that's been my experience.)
1. I had to set my DB connection protocol to TCP/IP
(this was not the default), this was done by running
the
file "svrnetcn.exe" and then in the SQL Server Network
Utility window, enable TCP/IP and set the port to
1433.Irrelevant to the classpath problem.
2. I then copied all three of the Microsoft JDBC
driver files to the ..\jre\lib\ext dir of my jdk
installed dir.The classpath always includes all jar files in this directory. That's why doing that fixed your problem. My bet is that you didn't have the jar file containing the driver in your classpath before, you just had the directory containing that jar file.
3. Updated my OS path to located these files
and....BINGO! (that simple)Unnecessary for solving classpath problems.
4. Took a crash course on JDBC & basic Java and now I
have created my database, all tables, scripts,
stored procedures and can read/write and do all kinds
of neat stuff.All's well that ends well. After a few months you'll wonder what all the fuss was about.

Exception in thread "main" java.lang.VerifyError: verification failed!!

DB:11.1.0.7
Oracle Apps:12.1.1
OS:RHEL Linux 4 86x64
Hi All,
On executing the following command on node 2 of TEST instance, we received the following error but did not find any such error messages in node 1
Notes: (1) Node 1 has java version:
java -version
java version "1.6.0_10"
Java(TM) SE Runtime Environment (build 1.6.0_10-b33)
Java HotSpot(TM) Server VM (build 11.0-b15, mixed mode)
(2) Node 2 has java version:
java -version
java version "1.4.2"
gcj (GCC) 3.4.6 20060404 (Red Hat 3.4.6-9)
Copyright (C) 2006 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Error message in node2:
On executing the following command on node 2 of TEST instance, we received the following error:
java oracle.jrad.tools.xml.importer.XMLImporter /tmp/custdocs/oracle/apps/pos/home/webui/customizations/site/0/PosHpgOrders.xml ....
/usr/bin/java: line 36: [: `)' expected, found -
Exception in thread "main" java.lang.VerifyError: verification failed at PC 152 in oracle.jdbc.driver.OracleDriver:registerMBeans(()V): String, int, or float constant expected
at JvBytecodeVerifier.verify_fail(byte, int) (/usr/lib64/libgcj.so.5.0.0)
at JvBytecodeVerifier.verify_instructions_0() (/usr/lib64/libgcj.so.5.0.0)
at JvVerifyMethod(_Jv_InterpMethod) (/usr/lib64/libgcj.so.5.0.0)
at JvPrepareClass(java.lang.Class) (/usr/lib64/libgcj.so.5.0.0)
at JvWaitForState(java.lang.Class, int) (/usr/lib64/libgcj.so.5.0.0)
at java.lang.VMClassLoader.linkClass0(java.lang.Class) (/usr/lib64/libgcj.so.5.0.0)
at java.lang.VMClassLoader.resolveClass(java.lang.Class) (/usr/lib64/libgcj.so.5.0.0)
at java.lang.Class.initializeClass() (/usr/lib64/libgcj.so.5.0.0)
at java.lang.Class.forName(java.lang.String, boolean, java.lang.ClassLoader) (/usr/lib64/libgcj.so.5.0.0)
at oracle.adf.mds.tools.util.ConnectUtils.getDBConnection(java.lang.String) (Unknown Source)
at oracle.jrad.tools.xml.importer.XMLImporter.importDocuments(java.lang.String[], java.sql.Connection) (Unknown Source)
at oracle.jrad.tools.xml.importer.XMLImporter.main(java.lang.String[]) (Unknown Source)
Could anyone please share such an issue faced before and provide resolution as to what's wrong in here in node 2?
Thanks for your time!
Regards,

Hi,
(2) Node 2 has java version:
java -version
java version "1.4.2"Do you run this command as applmgr user? If yes, did you source the application env file?
Could anyone please share such an issue faced before and provide resolution as to what's wrong in here in node 2?Why the java version is different on the both nodes?
Thanks,
Hussein

Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 5

I am getting error:
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 5
Pls tell me where I am wrong:
import javax.swing.JOptionPane;
import java.io.File;
import java.io.*;
import java.io.IOException;
import java.util.*;
class Test {
String lname, fname, finalLetterGrade, LetterGrade, sub1,sub2,sub3,sub4,sub5,sub;
int testone = 0;
     int a=0,b,c,d,e, count= 0, abs = 0,j;
int testtwo = 0;
int testthree = 0;
int testfour = 0;
int testfive = 0;
int finalExamGrade = 0;
int i=0;
int participation = 0;
int lowScore = 0;
int abs1,abs2,abs3,abs4,abs5;
String s="absent";
Character ch;
String []name;
int []Mark;
double finalNumericGrade = 0;
public Test() {
public void inputGrades()
int input, row, col;
     Scanner scan = new Scanner(System.in);
     System.out.println("Enter the length of the square matrix: ");
     col = scan.nextInt();
name = new String[col];
        Mark = new int[col];
        for(i = 0; i < col ; i++)
          name=JOptionPane.showInputDialog("Enter Student Name"+(i+1)+" Name: ");
System.out.println(name[i]);
for(j=0; j < col;j++)
Mark[j]=Integer.parseInt(JOptionPane.showInputDialog("Marks "+(j+1)+" Mark: "));
System.out.println(Mark[j]);
          System.out.println("Average-->"+getAverage());
          System.out.println("Student'-->"+toString());
public double getAverage()
     if( Mark[0]==0 || Mark[1]==0 || Mark[2]==0 || Mark[3]==0 || Mark[4]==0)
finalNumericGrade=((((float)(Mark[0])) + ((float)(Mark[1])) + ((float)(Mark[2])) + ((float)(Mark[3])) + ((float)(Mark[4])))/4);
else
finalNumericGrade=((((float)(Mark[0])) + ((float)(Mark[1])) + ((float)(Mark[2])) + ((float)(Mark[3])) + ((float)(Mark[4])))/5);;
return finalNumericGrade;
private String letterGrade(){
     //System.out.println(" +++ finalNumericGrade " + finalNumericGrade );
if ((finalNumericGrade >= 3.50) & (finalNumericGrade <= 4))
finalLetterGrade = "A";
else
if ((finalNumericGrade >= 2.50) & (finalNumericGrade < 3.50))
finalLetterGrade = "B";
else
if ((finalNumericGrade >= 2) & (finalNumericGrade < 2.50))
finalLetterGrade = "C";
else
if ((finalNumericGrade >= 1) & (finalNumericGrade < 2))
finalLetterGrade = "D";
else
if (finalNumericGrade == 0)
finalLetterGrade = "X";
else finalLetterGrade ="Z";
return finalLetterGrade;
public int getAbsentee()
     if(testone == 0)
          abs1=1;
     if(testtwo == 0)
          abs2=1;
     if(testthree == 0)
          abs3=1;
     if(testfour == 0)
          abs4=1;
     if(testfive == 0)
          abs5=1;
     return abs=abs1+abs2+abs3+abs4+abs5;
public String AbsentSub()
     if((testone < testtwo) & (testone < testthree) & (testone < testfour) & (testone < testfive))
          sub=sub1;
     if((testtwo < testone) & (testtwo < testthree) & (testtwo < testfour) & (testtwo < testfive))
          sub=sub2;
     if((testthree < testone) & (testthree < testtwo) & (testthree < testfour) & (testthree < testfive))
          sub=sub3;
     if((testfour < testone) & (testfour < testthree) & (testfour < testtwo) & (testfour < testfive))
          sub=sub4;
     if((testfive < testone) & (testfive < testtwo) & (testfive < testthree) & (testfive < testfour))
          sub=sub5;
     return sub;
public int getLowScore(){
//Determine and return the lowest score
lowScore = testone;
if (testtwo < lowScore) lowScore = testtwo;
if (testthree < lowScore) lowScore = testthree;
     if (testfour < lowScore) lowScore = testfour;
     if (testfive < lowScore) lowScore = testfive;
return lowScore;
public String toString() {
String studentStringValue="\n\nStudent " sub1 " "+sub2+" "+sub3+" "+sub4+" "+sub5+ " Lowest Final Marks \n\n";
studentStringValue+= name[i]+"\t";
if(Mark[0]==0)
     studentStringValue+="" s "\t";
else
     a=Mark[0];
     ch = new Character(((char) ((69-a))));
studentStringValue+= Mark[0]+" "+ch+ "\t";
if(Mark[1]==0)
     studentStringValue+="" s "\t";
else
     b=Mark[1];
ch = new Character(((char) ((69-b))));
studentStringValue+= Mark[1]+" "+ch+ "\t";
if(Mark[2]==0)
     studentStringValue+="" s "\t";
else
     c=Mark[2];
ch = new Character(((char) ((69-c))));
studentStringValue+=Mark[2] +" "+ch+ "\t";
if(Mark[3]==0)
     studentStringValue+="" s "\t";
else
     d=Mark[3];
ch = new Character(((char) ((69-d))));
studentStringValue+= Mark[3] +" "+ch+ "\t";
if(Mark[4]==0)
          studentStringValue+="" s "\t";
else
     e=Mark[4];
ch = new Character(((char) ((69-e))));
studentStringValue+=Mark[4] +" "+ch+ "\t";
try {
BufferedWriter out = new BufferedWriter(new FileWriter(".//Marks3.txt", true));
out.write(studentStringValue);
out.close();
} catch (IOException e) {
//studentStringValue+=" " + abs + " ";
//studentStringValue+=" " sub"\t";
studentStringValue+=" " + finalNumericGrade + " \n\n";
//studentStringValue+=" Final Letter Grade is: " + finalLetterGrade +"\n";
return studentStringValue;
}// toString
public void printName(){
System.out.print(" "+lname);
System.out.print(" "+fname);
public static void main(String[] args)
     Test s = new Test();
     s.inputGrades();
     System.out.println("Average-->" +s.getAverage());
     //System.out.println("Average-->" +s.setAverage());
     //System.out.println("Absent students in each Test-->" + s.getAbsentee());
     // s.getLowScore();
     //System.out.println("Final Letter Grade --> " + s.letterGrade());
     // s.AbsentSub();
     System.out.println(""+ s.toString());

hi,
I am getting error on line 232 n 339
My error is :
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 2
at Test.toString(Test.java:232)
at Test.main(Test.java:339)
my code is :
import javax.swing.JOptionPane;
import java.io.File;
import java.io.*;
import java.io.IOException;
import java.util.*;
class Test {
String lname, fname, finalLetterGrade, LetterGrade, sub1,sub2,sub3,sub4,sub5,sub;
int testone = 0;
     int a=0,b,c,d,e, count= 0, abs = 0,j,ab,abm=0,abj=0,abn=0,abd=0;
int testtwo = 0;
int testthree = 0;
int testfour = 0;
int testfive = 0;
int finalExamGrade = 0;
int i=0;
int participation = 0;
int lowScore = 0;
int abs1,abs2,abs3,abs4,abs5;
String s="absent";
Character ch;
String []name;
String[] subj;
int []Mark;
double finalNumericGrade = 0;
public Test() {
public void inputGrades()
int input, row, col;
     Scanner scan = new Scanner(System.in);
     System.out.println("Enter the length of Array: ");
     col = scan.nextInt();
name = new String[col];
subj = new String[5];
        Mark = new int[5];
        for(i = 0; i < col ; i++)
          name=JOptionPane.showInputDialog("Enter Student Name"+(i+1)+" Name: ");
System.out.println(name[i]);
for(j=0; j < 5;j++)
                    subj[j]=JOptionPane.showInputDialog("Enter Subject"+(j+1)+" Name: ");
Mark[j]=Integer.parseInt(JOptionPane.showInputDialog("Marks "+(j+1)+" Mark: "));
                    System.out.println(subj[j]);
System.out.println(Mark[j]);
                    System.out.println("Student'-->"+toString());
          System.out.println("Average Stu-->"+getAverage());
          getLowScore();
public double getAverage()
     if( Mark[0]==0 || Mark[1]==0 || Mark[2]==0 || Mark[3]==0 || Mark[4]==0)
finalNumericGrade=((((float)(Mark[0])) + ((float)(Mark[1])) + ((float)(Mark[2])) + ((float)(Mark[3])) + ((float)(Mark[4])))/4);
else
finalNumericGrade=((((float)(Mark[0])) + ((float)(Mark[1])) + ((float)(Mark[2])) + ((float)(Mark[3])) + ((float)(Mark[4])))/5);;
return finalNumericGrade;
private String letterGrade(){
     //System.out.println(" +++ finalNumericGrade " + finalNumericGrade );
if ((finalNumericGrade >= 3.50) & (finalNumericGrade <= 4))
finalLetterGrade = "A";
else
if ((finalNumericGrade >= 2.50) & (finalNumericGrade < 3.50))
finalLetterGrade = "B";
else
if ((finalNumericGrade >= 2) & (finalNumericGrade < 2.50))
finalLetterGrade = "C";
else
if ((finalNumericGrade >= 1) & (finalNumericGrade < 2))
finalLetterGrade = "D";
else
if (finalNumericGrade == 0)
finalLetterGrade = "X";
else finalLetterGrade ="Z";
return finalLetterGrade;
/*****Java Absentee***/
public int getAbsenteeJava()
     if((Mark[0]==0))
          abj=abj+1;
     else
          abj=0;
          return abj;
public void setAbsenteeJava()
          System.out.println("Absent in Java-->"+abj);
/***Maths Absentee****/
     public int getAbsenteeMaths()
     if(Mark[1]==0)
          abm=abm+1;
     else
          abm=0;
          return abm;
     public void setAbsenteeMaths()
          System.out.println("Absent in Maths-->"+abm);
/****Stats Absentee---*/
public int getAbsenteeStat()
sub3="Stats";
     if(Mark[2]==0)
          abs=abs+1;
     else
          abs=0;
          return abs;
     public void setAbsenteeStat()
System.out.println("Absent in Stats-->"+abs);
/*****NEt Absentee****/
     public int getAbsenteeNet()
sub4="Network";
     if(Mark[3]==0)
          abn=abn+1;
     else
          abn=0;
          return abn;
public void setAbsenteeNet()
System.out.println("Absent in Network-->"+abn);
/*****Database Absentee****/
     public int getAbsenteeData()
sub5="Database";
     if(Mark[4]==0)
          abd=abd+1;
     else
          abd=0;
          return abd;
     public void setAbsenteeData()
System.out.println("Absent in Database-->"+abd);
public String getLowScore(){
//Determine and return the lowest score
if(((subj[0].equals(sub1)) || (Mark[0]==0)))
          sub="Java";
     else if(((subj[1].equals(sub2)) || (Mark[1]==0)))
          sub="Maths";
     else if(((subj[2].equals(sub3)) & (Mark[2]==0)))
          sub="Stats";
     else if(((subj[3].equals(sub4)) || (Mark[3]==0)))
          sub="Network";
     else if(((subj[4].equals(sub5)) || (Mark[4]==0)))
          sub="Database";
     return sub;
public String toString() {
String studentStringValue="\n\nStudent " subj[0] " "+subj[1]+" "+subj[2]+" "+subj[3]+" "+subj[4]+ " Lowest Final Marks \n\n";
     String nm = name[i];
studentStringValue+= nm+"\t";
if(Mark[0]==0)
     studentStringValue+="" s "\t";
else
     {// 232: Line: getting ERROR here
     a=Mark[0];
     ch = new Character(((char) ((69-a))));
studentStringValue+= Mark[0]+" "+ch+ "\t";
if(Mark[1]==0)
     studentStringValue+="" s "\t";
else
     b=Mark[1];
ch = new Character(((char) ((69-b))));
studentStringValue+= Mark[1]+" "+ch+ "\t";
if(Mark[2]==0)
     studentStringValue+="" s "\t";
else
     c=Mark[2];
ch = new Character(((char) ((69-c))));
studentStringValue+=Mark[2] +" "+ch+ "\t";
if(Mark[3]==0)
     studentStringValue+="" s "\t";
else
     d=Mark[3];
ch = new Character(((char) ((69-d))));
studentStringValue+= Mark[3] +" "+ch+ "\t";
if(Mark[4]==0)
          studentStringValue+="" s "\t";
else
     e=Mark[4];
ch = new Character(((char) ((69-e))));
studentStringValue+=Mark[4] +" "+ch+ "\t";
//studentStringValue+=" " + abs + " ";
studentStringValue+=" " sub"\t";
studentStringValue+=" " + finalNumericGrade + " \n\n";
//studentStringValue+=" Final Letter Grade is: " + finalLetterGrade +"\n";
try {
BufferedWriter out = new BufferedWriter(new FileWriter(".//Marks3.txt", true));
out.write(studentStringValue);
out.close();
} catch (IOException e) {
return studentStringValue;
}// toString
public void printName(){
System.out.print(" "+lname);
System.out.print(" "+fname);
public static void main(String[] args)
     Test s = new Test();
     s.inputGrades();
     System.out.println("Average-->" +s.getAverage());
     //System.out.println("Average-->" +s.setAverage());
     s.getAbsenteeJava();
     s.setAbsenteeJava();
     s.getAbsenteeMaths();
s.setAbsenteeMaths();
     s.getAbsenteeStat();
     s.setAbsenteeStat();
     s.getAbsenteeNet();
     s.setAbsenteeNet();
     s.getAbsenteeData();
s.setAbsenteeData();
     s.getLowScore();
     //System.out.println("Final Letter Grade --> " + s.letterGrade());
     System.out.println(""+ s.toString());

Exception in thread "main" java.lang.NoClassDefFoundError: javax/xml/stream

I am trying to develop a web service client for amazon webservice.but i am getting this error while running the app. Can anyone please help me. I have installed the JWSDP and but could not understand why i have to locate all the jar files in the classpath?Please help.
===== error=========================================
C:\abr\classes>java -classpath c:\abr\test.jar;C:\abr\jaxrpc-api.jar;C:\abr\jaxrpc-impl.jar;C:\abr\jaxrpc-spi.jar;c:\abr\classes\amazon.jar;C:\abr\mail.jar;C:\a
br\saaj-api.jar;C:\abr\activation.jar;c:\abr\FastInfoset.jar;%classpath% Client
[b]Exception in thread "main" java.lang.NoClassDefFoundError: javax/xml/stream/XMLS
treamWriter
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$100(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$100(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
at com.sun.xml.rpc.client.StreamingSender._writeRequest(StreamingSender.
java:672)
at com.sun.xml.rpc.client.StreamingSender._send(StreamingSender.java:87)
at amazon.AmazonSearchPort_Stub.authorSearchRequest(AmazonSearchPort_Stu
b.java:988)
at Client.main(Client.java:21)

I'm assuming you're using JWSDP 1.6 as I see Fastinfoset.jar in your list. You are missing some jar files in your classpath there. The best way to know what you need is to look at the release notes for JWSDP 1.6. Since you're building a web serivce start with the table in there and lookup JAX-RPC. It'll show you what jar files are needed and what other libraries are needed. Now depending on what you're doing you don't really need all those.
For sure you're missing jsr173_api.jar which is where I believe that class you need is located. This is in the JWSDP_1_6\sjsxp\lib directory. You will probably need the other jar thats in there too. Best bet is to follow the dependancy chart in the release notes.
This should get you going.
Ryan

Help with Exception in thread "main" java.lang.NullPointerException

I got this exception while running the code in Netbeans IDE 6.1. The code is compiling fine...Please tell me what the problem is
Exception in thread "main" java.lang.NullPointerException
at Softwareguide.chooseanswer(Softwareguide.java:32)
at Driver.main(Driver.java:7)
public class Driver
    public static void main(String[] args)
        Softwareguide swguide = new Softwareguide();
        swguide.chooseanswer();
public class Softwareguide
    State test1;
    State test2;
    State test3;
    State test4;
    State test5;
    State subtest1;
    State subtest2;
    State subtest3;
    State subtest4;
    State subtest5;
    State state = test1;
    public Softwareguide()
        test1 = new Test1(this);
        test2 = new Test2(this);
        test3 = new Test3(this);
        test4 = new Test4(this);
        test5 = new Test5(this);
        subtest1 = new SubTest1(this);
        subtest2 = new SubTest2(this);
        subtest3 = new SubTest3(this);
        subtest4 = new SubTest4(this);
        subtest5 = new SubTest5(this);
    public void chooseanswer()
        state.chooseanswer();
   /* public void chooseyes()
        state.chooseyes();
    public void chooseno()
        state.chooseno();
    public State getState()
        return state;
    void setState(State state)
     this.state = state;
    public State getTest1State()
        return test1;
    public State getTest2State()
        return test2;
    public State getTest3State()
        return test3;
    public State getTest4State()
        return test4;
    public State getTest5State()
        return test5;
    public State getsubTest1State()
        return subtest1;
    public State getsubTest2State()
        return subtest2;
    public State getsubTest3State()
        return subtest3;
    public State getsubTest4State()
        return subtest4;
    public State getsubTest5State()
        return subtest5;
    public String toString()
        StringBuffer result = new StringBuffer();
        result.append("\n Starting Diagnostic Test...");
        return result.toString();
}

spiderjava wrote:
the variable state is assigned to test1. This variable(test1) is not initialized anywhere.It is initialized in the c'tor. Which is invoked after the "global" object and attribute initialization. So it is there, but comes too late.
You should definitly not write a technical Java blog and post it all over the place.

Exception in thread "main" java.lang.OutOfMemoryError(please help me )

Hi All
here my java class trying to read a txt file(which is having size of 60MB).and putting each line into a Vector class. problem is ,upto certain number of line it is reading properly and putting into vector..after that it is giving error like Exception in thread "main" java.lang.OutOfMemoryError..what is the problem and how to rectify this one..anybody help me on this.
actual situation is one txt is there in that 80 lakhs of lines of content is there..java file trying to read each line and put it into vector or stringbuffer and split it into two lines like key=value and put it into hashmap object.then finally iam creating new file(.properties) and writing these hashmap data on it. if you want clearly..please look into below code..
package test.utf8; import java.io.*; import java.util.*; public class AssetUtils
//static StringBuffer stringbuffer = new StringBuffer();
public AssetUtils()
public static void main(String args[]) throws IOException
BufferedReader bufferedreader = new BufferedReader(new InputStreamReader(new FileInputStream("D:\\list.txt")));
Vector vector = new Vector(0x30D40, 50000);
System.out.println(vector.capacity());
Object obj = null;
int n=0;
System.out.println("Reading list:" + new Date(System.currentTimeMillis()));
do
String s = bufferedreader.readLine();
//System.out.println("line no: "+ ++n);
if(s == null)
break;
vector.add(s);
} while(true);
System.out.println("List Read complete:" + new Date(System.currentTimeMillis()));
String s1 = args[0];
System.out.println("S1: "+s1);
System.out.println(vector.capacity());
HashMap hashmap = new HashMap();
System.out.println( "Vector.Size..>>>>>>>>>>>>>>>>.."+vector.size());
for(int i = 0; i < vector.size(); i++)
System.out.println("i value:"+i);
String s2 = (String)vector.get(i);
//System.out.println("S2: "+s2);
if(s2.indexOf("/") != -1)
String s3 = s2.substring(s1.length(), s2.length());
//System.out.println("S3: "+s3);
if(s3.indexOf("/") != -1) {
String s4 = s3.substring(0, s3.lastIndexOf("/"));
//System.out.println("S4: "+s4);
String s6 = s3.substring(s3.lastIndexOf("/") + 1, s3.length());
//System.out.println("S6: "+s6);
StringBuffer stringbuffer=null;
stringbuffer = new StringBuffer();
String s8 = (String)hashmap.get(s4);
//System.out.println("S8: "+s8);
if(s8 != null) stringbuffer.append(s8 + "," + s6);
else
stringbuffer.append(s6);
hashmap.put(s4, stringbuffer.toString());
//stringbuffer.delete(0,stringbuffer.length());
stringbuffer=null;
System.out.println("Opening asset.properties:" + new Date(System.currentTimeMillis()));
File file = new File("D:\\asset.properties");
PrintWriter printwriter = new PrintWriter(new FileOutputStream(file));
String s5;
String s7;
for(Iterator iterator = hashmap.keySet().iterator(); iterator.hasNext(); printwriter.println(s5 + "=" + s7))
{ s5 = (String)iterator.next(); s7 = (String)hashmap.get(s5); } printwriter.close();
System.out.println("Closing asset.properties:" + new Date(System.currentTimeMillis()));

Theres a number of ways you can improve your memory usage:
1) Build you map as you read in your file.
2) Use StringBuffers in your map - do not use "asshaj" + "ashaskj" This is very memory intensive
If you still run out of memory try running the JVM using -Xms128m -Xmx512m or higher

Exception in thread "main" java.lang.NoClassDefFoundError: Emp/class

Dear all,
It occur 'Exception in thread "main" java.lang.NoClassDefFoundError: Emp/class' error when I test a oracle java sample.I've already SET CLASSPATH=C:\ORACLE\JDBC\LIB\CLASSE~1.ZIP.
following is the source code:
import java.sql.*;
class Emp
public static void main (String args [])
throws SQLException
// Load the Oracle JDBC driver
DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
// Connect to the database
// You must put a database name after the @ sign in the connection URL.
// You can use either the fully specified SQL*net syntax or a short cut
// syntax as <host>:<port>:<sid>. The example uses the short cut syntax.
Connection conn =
DriverManager.getConnection ("jdbc:oracle:oci8:@localhost:1521:orcl",
"scott", "tiger");
// Create a Statement
Statement stmt = conn.createStatement ();
// Select the ENAME column from the EMP table
ResultSet rset = stmt.executeQuery ("select ENAME from EMP");
// Iterate through the result and print the employee names
while (rset.next ())
System.out.println (rset.getString (1));
Can you tell me what should also be set in classpath?
thanks in advance.

You are right, the program is absolutely correct and I've run it before.but why set PATH=%PATH%;C:\ORACLE\JDBC\LIB\CLASSE~1.ZIP?I don't think it is correct.
I've ever run this jdbc program before and remeber only set classpath(path is also be set only for run executable program, for example set path=%path%;c:\j2sdk\bin),
I think the only difference with before is:
1,oracle version is changed from enterprise version to personal version
2,OS is changed from NT to windows 98
but i dont know if it lead to problem and can you give me some advice?

Exception in thread "main" java.lang.NoClassDefFoundError: Hello

Hi @ all!
I'm a newbie and maybe for advanced developers my problem is just a tiny one, but I can't solve it. So everytime I want to run my Hello.class in a DOS window with the commandline: java Hello, it print this error:
Exception in thread "main" java.lang.NoClassDefFoundError: Hello
Who can I solve it???

This is a common problem and everybody has had it! The Java runtime cannot find your class.
- make sure that your compilation worked and the "Hello.class" file exists.
- To test whether this is a classpath problem, navigate to the directory where "Hello.class" is located and then run "Java Hello" again (assumes you are not yet using packages). If it works, then add the directory to your classpath and you should be able to run from anywhere.
- if it doesn't work, post again with the error.
Good Luck

"Exception in thread "main" java.lang.UnsatisfiedLinkError:" JNI in Linux

Hi,
I am writing a simple program to understand how JNI works so that I can use this concept to develop a project. But after running the simple code,
It gives the following error:
Exception in thread "main" java.lang.UnsatisfiedLinkError: sum
at TestJni.main(testJni.java:25)
My Java code is:
import java.io.*;
import java.util.*;
class TestJni
// Try to load the native Code library for user Authentication.
static
try
System.loadLibrary( "test" );
catch( UnsatisfiedLinkError e )
System.out.println("Could not load native code for user authentication." );
System.exit(1);
public static void main( String [] args )
//TestJni obj = new TestJni();
System.out.println(TestJni.sum(2, 3));
public static native int sum( int x, int y );
TestJni.h looks like:
/* DO NOT EDIT THIS FILE - it is machine generated */
#include <jni.h>
/* Header for class TestJni */
#ifndef IncludedTestJni
#define IncludedTestJni
#ifdef __cplusplus
extern "C" {
#endif
* Class: TestJni
* Method: sum
* Signature: (II)I
JNIEXPORT jint JNICALL Java_TestJni_sum
(JNIEnv *, jclass, jint, jint);
#ifdef __cplusplus
#endif
#endif
and my C++ code is:
#include <jni.h>
#include "TestJni.h"
#include <stdio.h>
JNIEXPORT jint JNICALL Java_TestJni_sum(JNIEnv *env, jclass obj, jint x, jint y)
printf("Inside the native function\n");
return (x + y);
Then I am generating my .so file as:
g++ -o libtest.so sum.cpp -shared -fpic -lcrypt -I//usr/lib/j2se/1.4/include -I/usr/lib/j2se/1.4/include/linux
and copying the libtest.so file into the folder where I have my TestJni.class file. Then running the java code by:
java TestJni
but it gives the "UnsatisfiedLinkError". What to do? :( I have spend 2 days now to solve this problem but I am not getting it.
I am using ubuntu 7.10 as my OS.
Please let me know if you can help.

Thanks for your response. I found that, when I copied the shared library to /usr/lib and
did: ldconfig -n /usr/lib it worked
But the problem is, this is my computer, but the computers that I am going to run my actual
JNI application, have restrictive permission. Could anyone please let me know how I can
do the work without ldconfig. I mean is there anyway I can configure my .so file's path without
copying it into the /usr/lib folder and without ldconfig?
I will appreciate any reply. Thanks.

Exception in thread "main" java.lang.NoClassDefFoundError: Xms512m

when i change memory arguments , i am getting the following error and the server is not starting.
JAVA Memory arguments: Xms512m -Xmx512m -XX:MaxPermSize=128m
WLS Start Mode=Production
CLASSPATH=:/home3/bea9/patch_weblogic922/profiles/default/sys_manifest_classpath/weblogic_patch.jar:/home3/bea9/jdk150_07/lib/tools.jar:/home3/bea9/weblogic92/server/lib/weblogic_sp.jar:/home3/bea9/weblogic92/server/lib/weblogic.jar:/home3/bea9/weblogic92/server/lib/webservices.jar::/home3/bea9/weblogic92/common/eval/pointbase/lib/pbclient51.jar:/home3/bea9/weblogic92/server/lib/xqrl.jar::
PATH=/home3/bea9/weblogic92/server/bin:/home3/bea9/jdk150_07/jre/bin:/home3/bea9/jdk150_07/bin:/home3/bea8/weblogic81/server/bin:/weblogic/bea/scripts:/home3/bea8/jdk142_05/bin:/usr/sbin:/usr/bin:/usr/ccs/bin:/usr/contrib/bin:/opt/nettladm/bin:/opt/fc/bin:/opt/fcms/bin:/opt/upgrade/bin:/opt/pd/bin:/usr/bin/X11:/usr/contrib/bin/X11:/opt/hparray/bin:/opt/langtools/bin:/opt/imake/bin:/opt/perf/bin:/opt/ignite/bin:/opt/OV/bin/OpC:/opt/hpnp//bin:/opt/resmon/bin:/usr/sbin/diag/contrib:/opt/pred/bin:/opt/sec_mgmt/spc/bin:/opt/graphics/common/bin:/opt/OV/bin:/opt/ssh/bin:/opt/aCC/bin:/opt/sec_mgmt/bastille/bin:.:/u01/app/oracle/product/8.1.7/bin
* To start WebLogic Server, use a username and *
* password assigned to an admin-level user. For *
* server administration, use the WebLogic Server *
* console at http://hostname:port/console *
starting weblogic with Java version:
java version "1.5.0.07"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0.07-_20_mar_2007_05_31)
Java HotSpot(TM) Server VM (build 1.5.0.07 jinteg:03.20.07-04:39 PA2.0 (aCC_AP), mixed mode)
Starting WLS with line:
/home3/bea9/jdk150_07/bin/java -server Xms512m -Xmx512m -XX:MaxPermSize=128m -da -Dplatform.home=/home3/bea9/weblogic92 -Dwls.home=/home3/bea9/weblogic92/server -Dwli.home=/home3/bea9/weblogic92/integration -Dweblogic.management.discover=false -Dweblogic.management.server=http://localhost:9001 -Dwlw.iterativeDev=false -Dwlw.testConsole=false -Dwlw.logErrorsToConsole= -Dweblogic.ext.dirs=/home3/bea9/patch_weblogic922/profiles/default/sysext_manifest_classpath -Dweblogic.Name=TEST -Djava.security.policy=/home3/bea9/weblogic92/server/lib/weblogic.policy weblogic.Server
Exception in thread "main" java.lang.NoClassDefFoundError: Xms512m
$
The server is starting fine with domain variables without changing the memory arguments in the managed server startup scripts.
But when i changed the mem args in the server startup script , this is the error and server is not starting.
the domain env is set and weblogic server version 9.2
Here is the arguments i changed in the startup script, the server is starting with out these arguments with domain set memory arguments. Any body please help
USER_MEM_ARGS="Xms512m -Xmx512m -XX:MaxPermSize=128m"
export USER_MEM_ARGS

I think you are missing a character '-'
USER_MEM_ARGS="Xms512m -Xmx512m -XX:MaxPermSize=128m"Add this character like follows
"-Xms512m -Xmx512m -XX:MaxPermSize=128m"

Error complie "Exception in thread "main" java.lang.NoClassDefFoundError"

Dear All,
I have the following problem can not compile the code below.
Here my settings and the code.
Thanks for the help.
My java version.
===============================================
D:\bea\jdk150_22\bin>java -version
java version "1.5.0_22"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_22-b03)
Java HotSpot(TM) Client VM (build 1.5.0_22-b03, mixed mode)
===============================================
I use a bat to compile the code
===============================================
set JDK_HOME=D:\bea\jdk150_22
set PATH=%JDK_HOME%\bin;%PATH%
set CLASSPATH=%CLASSPATH%;D:\oracle\product\10.2.0\client_1\jdbc\lib\classes12.jar
rem ---- compile
javac GetDBOracle.java
rem ---- testing
java GetDBOracle
rem ---- add to jar
jar cf GetDBOracle.jar GetDBOracle.class
===============================================
My java code
===============================================
import java.sql.*;
import java.io.*;
public class GetDBOracle {
public static String GetDBOracle(String Parm1, String Parm2) throws SQLException
String myResult = "";
// Load Oracle driver
DriverManager.registerDriver (new oracle.jdbc.OracleDriver());
// Connect to the local database
Connection conn = DriverManager.getConnection
("jdbc:oracle:thin:@localhost:ORCL", "ORC", "ORC2010");
// Query the employee names
Statement stmt = conn.createStatement ();
ResultSet rset = stmt.executeQuery ("SELECT JAVA_GET_VALUE('"Parm1"','"Parm2"') FROM DUAL");
// Print the name out
while (rset.next ()) {
myResult = rset.getString (1);
//close the result set, statement, and the connection
rset.close();
stmt.close();
conn.close();
return myResult;
public static void main(String args[])
try {
System.out.println(GetDBOracle("XXI", "12000"));
} catch (Exception e) {
System.out.println(e.getMessage());
===============================================
Erro
===============================================
Exception in thread "main" java.lang.NoClassDefFoundError: GetDBOracle
===============================================

What happened to this Error complie "Exception in thread "main" java.lang.NoClassDefFoundError" ?

Exception in thread "main" java.lang.NoClassDefFpondError: Test

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