Error while running a Java Program

Can anyone help me,
I am getting the following error while running a Java program, Below is the exception thrown, please help.
java.nio.BufferOverflowException
at java.nio.Buffer.nextPutIndex(Buffer.java:425)
at java.nio.DirectByteBuffer.putChar(DirectByteBuffer.java:463)
at org.jetel.data.StringDataField.serialize(StringDataField.java:295)
at org.jetel.data.DataRecord.serialize(DataRecord.java:283)
at org.jetel.graph.DirectEdge.writeRecord(DirectEdge.java:216)
at org.jetel.graph.Edge.writeRecord(Edge.java:288)
at com.tcs.re.component.RESummer1.run(RESummer1.java:505)
java.nio.BufferOverflowException
at java.nio.Buffer.nextPutIndex(Buffer.java:425)
at java.nio.DirectByteBuffer.putChar(DirectByteBuffer.java:463)
at org.jetel.data.StringDataField.serialize(StringDataField.java:295)
at org.jetel.data.DataRecord.serialize(DataRecord.java:283)
at org.jetel.graph.DirectEdge.writeRecord(DirectEdge.java:216)
at org.jetel.graph.Edge.writeRecord(Edge.java:288)
at com.tcs.re.component.RECollectCont.run(RECollectCont.java:304)

Ok, let's see. Write the following class:
public class Grunt {
public static void main(String[] args) {
System.out.println("Hello Mars");
}Save it as "C:\Grunt.java", compile by typing:
javac c:\Grunt.javaRun by typing:
java -classpath "C:\" GruntDoes it say "Hello Mars"? If yes, go back to your program and compare for differences (maybe you used the "package" statement?).
Regards

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          spcs += "-";
          if(aFile.isFile()) {
               System.out.println(spcs + "[FILE] " + aFile2.toURI().relativize(aFile.toURI()).getPath());
               String newFile = dest + aFile2.toURI().relativize(aFile.toURI()).getPath();
               File nf = new File(newFile);
               try {
                    FileCopy.copyFile(aFile ,nf);
               } catch (IOException ex) {
                    Logger.getLogger(ContentList.class.getName()).log(Level.SEVERE, null, ex);
          } else if (aFile.isDirectory()) {
               //System.out.println(spcs + "[DIR] " + aFile2.toURI().relativize(aFile.toURI()).getPath());
               String newDir = dest + aFile2.toURI().relativize(aFile.toURI()).getPath();
               File nd = new File(newDir);
               nd.mkdir();
               File[] listOfFiles = aFile.listFiles();
               if(listOfFiles!=null) {
                    for (int i = 0; i < listOfFiles.length; i++)
                         Process(listOfFiles, aFile2);
               } else {
                    System.out.println(spcs + " [ACCESS DENIED]");
          spc_count--;
for copying files/directories:public static void copyFile(File in, File out)
throws IOException {
FileChannel inChannel = new
FileInputStream(in).getChannel();
FileChannel outChannel = new
FileOutputStream(out).getChannel();
try {
inChannel.transferTo(0, inChannel.size(),
outChannel);
catch (IOException e) {
throw e;
finally {
if (inChannel != null) inChannel.close();
if (outChannel != null) outChannel.close();
Please let me know if any better approach is there. But as I already said, currently it's eating up the whole memory.
Thanks in advance.

Getting error while running command java -jar oc4j.jar -install

java -jar oc4j.jar -install
ON RUNNING The above command getting below error , is it because Java home is not set?
Warning: -jar not understood. Ignoring.
Exception in thread "main" java.lang.NoClassDefFoundError: oc4j.jar
at gnu.gcj.runtime.FirstThread.run() (/usr/lib/libgcj.so.5.0.0)
at JvThreadRun(java.lang.Thread) (/usr/lib/libgcj.so.5.0.0)
at JvRunMain(java.lang.Class, byte const, int, byte const, boolean) (/usr/lib/libgcj.so.5.0.0)
at __gcj_personality_v0 (/oracle/u01/app/oracle/product/10.2.0/db_1/oc4j/j2ee/home/java.version=1.4.2)
at __libc_start_main (/lib/tls/libc-2.3.4.so)
at JvRegisterClasses (/oracle/u01/app/oracle/product/10.2.0/db_1/oc4j/j2ee/home/java.version=1.4.2)
navisdb.igglobal.com(express)$ javac
ksh: javac: not found
ENVIORNMENT DETAIL : RED HAT LINUX ENTERPRISE EDITION
Extracted OC4J_extended.zip file at oracle 10g installation location.

does this command work?
/home/oracle:MCSE>gij --showversion
gij (GNU libgcj) version 3.4.6 20060404 (Red Hat 3.4.6-11)

Getting error while running the concurrent program

XDO Data Engine Version No: 5.6.3
Resp: 50554
Org ID : 204
Request ID: 4469953
All Parameters: p_operating_unit=Vision Operations:p_from_date="2005/01/01 00:00:00":p_to_date="2011/09/28 00:00:00"
Data Template Code: TRAIL
Data Template Application Short Name: SQLAP
Debug Flag: N
{p_from_date=2005/01/01 00:00:00, p_to_date=2011/09/28 00:00:00, p_operating_unit=Vision Operations}
Calling XDO Data Engine...
[092811_033352790][][EXCEPTION] java.lang.NullPointerException
     at oracle.apps.xdo.dataengine.DataTemplateParser.GetNodeNumChildren(DataTemplateParser.java:345)
     at oracle.apps.xdo.dataengine.DataTemplateParser.templateParser(DataTemplateParser.java:277)
     at oracle.apps.xdo.dataengine.XMLPGEN.setDataTemplate(XMLPGEN.java:599)
     at oracle.apps.xdo.dataengine.DataProcessor.setDataTemplate(DataProcessor.java:193)
     at oracle.apps.xdo.oa.util.DataTemplate.<init>(DataTemplate.java:136)
     at oracle.apps.xdo.oa.cp.JCP4XDODataEngine.runProgram(JCP4XDODataEngine.java:282)
     at oracle.apps.fnd.cp.request.Run.main(Run.java:157)
java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
     at com.sun.java.util.collections.ArrayList.RangeCheck(ArrayList.java:492)
     at com.sun.java.util.collections.ArrayList.get(ArrayList.java:306)
     at oracle.apps.xdo.dataengine.DataTemplateParser.getParentDataSource(DataTemplateParser.java:1737)
     at oracle.apps.xdo.dataengine.XMLPGEN.writeDefaultGroup(XMLPGEN.java:320)
     at oracle.apps.xdo.dataengine.XMLPGEN.writeGroupStructure(XMLPGEN.java:279)
     at oracle.apps.xdo.dataengine.XMLPGEN.processData(XMLPGEN.java:266)
     at oracle.apps.xdo.dataengine.XMLPGEN.processXML(XMLPGEN.java:205)
     at oracle.apps.xdo.dataengine.XMLPGEN.writeXML(XMLPGEN.java:237)
     at oracle.apps.xdo.dataengine.DataProcessor.processData(DataProcessor.java:364)
     at oracle.apps.xdo.oa.util.DataTemplate.processData(DataTemplate.java:236)
     at oracle.apps.xdo.oa.cp.JCP4XDODataEngine.runProgram(JCP4XDODataEngine.java:293)
     at oracle.apps.fnd.cp.request.Run.main(Run.java:157)
Start of log messages from FND_FILE
End of log messages from FND_FILE
Executing request completion options...
------------- 1) PUBLISH -------------
Beginning post-processing of request 4469953 on node HSCHBSCGN20076 at 28-SEP-2011 15:33:53.
Post-processing of request 4469953 failed at 28-SEP-2011 15:33:53 with the error message:
One or more post-processing actions failed. Consult the OPP service log for details.
Finished executing request completion options.

Hi,
What is the program name? Is this a standard program? Please share the details.
The 345th line of the oracle.apps.xdo.dataengine.DataTemplateParser file is the cause of the error. Looks like somewhere you are passing nulls. Make sure provided all the required parmeters and done all the required setups.
HTH,
Syed.

Error while running a Java Program

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