how to solve this type of stackoverflowerror...

Hi all,

I have a java program which runs repeatedly by calling to main functions in a loop based on a condition ..But after running for some time(say 30 minutes),it shows the follwing error and it terminate the program execution.But as per my requirement i want to run this program for several hours or time without showing any error and terminating the program.

Exception in thread "main" java.lang.StackOverflowError
at sun.nio.cs.StreamEncoder$CharsetSE.implWrite(Unkno wn Source)
at sun.nio.cs.StreamEncoder.write(Unknown Source)
at java.io.OutputStreamWriter.write(Unknown Source)
at java.io.BufferedWriter.flushBuffer(Unknown Source)
at java.io.PrintStream.write(Unknown Source)
at java.io.PrintStream.print(Unknown Source)
at java.io.PrintStream.println(Unknown Source)
at pitstop.automation1.main(automation1.java:18)
at pitstop.automation1.main(automation1.java:298)
at pitstop.automation1.main(automation1.java:298)
at pitstop.automation1.main(automation1.java:298)
at pitstop.automation1.main(automation1.java:298)
at pitstop.automation1.main(automation1.java:298)
at pitstop.automation1.main(automation1.java:298)
at pitstop.automation1.main(automation1.java:298)
at pitstop.automation1.main(automation1.java:298)
at pitstop.automation1.main(automation1.java:298)
at pitstop.automation1.main(automation1.java:298)
at pitstop.automation1.main(automation1.java:298)

Could anyone please tell me what is the exact reason for this and how to fix this error.

The code for the same program is below:

Code

GeSHi (java):
 package pitstop;
 
import java.io.*;  
import java.util.*;  
import java.io.Closeable;
import java.io.DataInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FilenameFilter;
import java.io.IOException;
 
 
public class automation1 {
 
	public static void main(String[] args) throws InterruptedException {  
 
		System.out.println("--");
		 String str3=null;
		String fNameOne = "D:\\textfile\\";
		File myDir=new File(fNameOne);
		//System.out.println("myDir:" +myDir);
    	FilenameFilter select=new FileListFilter("","txt");
    	File[] content=myDir.listFiles(select);
    	String  filepath=null;
    	String fName=null;
    	String fileName = null;
    	String fileName1=null;
        File dir = new File(fNameOne);
        String[] chld = dir.list();
       // System.out.println("dir length:" +chld.length );
        for(int i = 0; i < chld.length; i++){
             fileName = chld[i];
            System.out.println("Filename:"+fileName);
        }
 
        Thread t=new Thread();
 
		t.sleep(1000);
 
 
    	//if(content!=null){
		for(int i = 0; i < chld.length; i++){
 
			 fileName1 = chld[i];
			 System.out.println("Fname:"+fNameOne);
			 System.out.println("Filename1:"+fileName1);
          //  switch(1){
           // case 1:{
 
 
 
            	fName = fNameOne+fileName1;
            	System.out.println("Fname1:" +fName);
            	String thisLine; //string variable which take each line at a time  
            	FileInputStream fis = null;  
 
            	 try { 
 
            	        fis = new FileInputStream(fName);  
 
            	    } catch (FileNotFoundException e) {  
            	        // TODO Auto-generated catch block  
            	      //  e.printStackTrace();  
            	    }
 
 
            	DataInputStream in = new DataInputStream(fis);
                BufferedReader br = new BufferedReader(new InputStreamReader(in));
                String strLine = null;
                String replacewith="\\";
                String strLine1=null;
 
                //Read File Line By Line
               // while (strLine  != null)   {
                try {
                	while ((strLine = br.readLine()) != null)   {
 
					//while ((thisLine = in.readLine()) != null)  
					  // Print the content on the console
					  System.out.println (strLine);
					  String str=strLine.substring(0,1);
					  String str1=strLine.replaceFirst(str,"" );
					  String str2=str1.replaceFirst("/", ":\\\\");
					   str3=str2.replaceAll("/","\\\\");
					  System.out.println ("str11:" +str3);
					/*  strLine=strLine.replaceAll("/d","D:");
					  System.out.println ("str:" +strLine);
					 strLine1=strLine.replaceAll("/","\\\\" );
					 System.out.println ("str11:" +strLine1);
					 */ 
				    }
                //	System.out.println("str111" +strLine1);
                	File f=new File(str3);
                	String filename=f.getName();
                	filepath=f.getParent();
                	System.out.println("filepath:" +filepath);
                	InputStream oInStream = new FileInputStream(str3);
                    OutputStream oOutStream = new FileOutputStream("D:\\pitstop\\in\\" +filename);
 
                    // Transfer bytes from in to out
                    byte[] oBytes = new byte[1024];
                    int nLength;
                    BufferedInputStream oBuffInputStream = new BufferedInputStream( oInStream );
                    while ((nLength = oBuffInputStream.read(oBytes)) > 0) 
                    {
                            oOutStream.write(oBytes, 0, nLength);
                    }
                    oInStream.close();
                    oOutStream.close();
 
                    in.close();
                	} catch (IOException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
              //  }
                //Close the input stream
                	Thread t1=new Thread();
 
            		t1.sleep(1000);
 
                	System.out.println("FileName1111:" +fName);
                  	File ff=new File(fName);
                  	System.out.println("ff" +ff);
                     boolean s=ff.delete();
                     System.out.println("s" +s);
                     if (!s) {
                    		System.out.println("File not deleted");
                    	    // File was not successfully moved
                    	}        	
 
 
            String fName1 = "D:\\pitstop\\out";
    		File myDir1=new File(fName1);
    		//System.out.println("myDir:" +myDir);
        	FilenameFilter select1=new FileListFilter("","pdf");
        	File[] content1=myDir1.listFiles(select1);
 
        	File dir4 = new File(fName1);
            String[] chld4 = dir4.list();
        	System.out.println("chld4:" +chld4.length);
 
 
 
        	if(chld4.length==0){
 
        		String fName2 = "D:\\checkpdf\\pass\\";
        		File myDir2=new File(fName2);
        		//System.out.println("myDir:" +myDir);
            	FilenameFilter select2=new FileListFilter("","pdf");
            	File[] content2=myDir2.listFiles(select2);
 
 
            	String fileName3 = null;
                File dir3 = new File(fName2);
                String[] chld1 = dir3.list();
               // System.out.println("dir length:" +chld.length );
                for(int j = 0; j < chld1.length; j++){
                     fileName3 = chld1[j];
                   // System.out.println("Filename3:" +fileName3);
                }
               // System.out.println("content2:" +content2);
 
                String fName31 = "D:\\checkpdf\\fail\\";
        		File myDir31=new File(fName31);
        		//System.out.println("myDir:" +myDir);
            	FilenameFilter select31=new FileListFilter("","pdf");
            	File[] content4=myDir31.listFiles(select31);
            	System.out.println("content4:" +content4);
 
            	String fileName4 = null;
                File dir51 = new File(fName31);
                String[] chld2 = dir51.list();
               // System.out.println("dir length:" +chld.length );
                for(int k = 0; k < chld2.length; k++){
                     fileName4 = chld2[k];
                  // System.out.println("Filename in fail:" +fileName4);
                }
 
                String fName5 = "D:\\checkpdf\\corrupt\\";
        		File myDir61=new File(fName5);
        		//System.out.println("myDir:" +myDir);
            	FilenameFilter select41=new FileListFilter("","pdf");
            	File[] content5=myDir61.listFiles(select41);
 
 
            	String fileName5 = null;
                File dir61 = new File(fName5);
                String[] chld5 = dir61.list();
               // System.out.println("dir length:" +chld.length );
                for(int l = 0; l < chld5.length; l++){
                     fileName5 = chld5[l];
                   // System.out.println("Filename:"+fileName);
                }
 
 
 
        		if(content2!=null){
 
        			System.out.println("in pass");
 
        			for(int a=0;a<chld1.length;a++){
 
        				fileName3 = chld1[a];
        			 File file1 = new File("D:\\checkpdf\\pass\\" +fileName3 );
 
        			 System.out.println("File name in pass:" +fileName3);
 
 
        			    // Destination directory
        			    File dir1 = new File(filepath);
 
        			    // Move file to new directory
        			    boolean success = file1.renameTo(new File(dir1, file1.getName()));
        			    if (!success) {
        			    	System.out.println("File not moved from pass");
        			        // File was not successfully moved
        			    }
        			    else
          			    	System.out.println("File moved from pass");
        			}
 
 
        		}
 
 
        		 if(content4!=null){
 
        			System.out.println("in fail");
        			 File file2 = new File("D:\\checkpdf\\fail\\" +fileName4 );
 
 
        			 System.out.println("File name in fail:" +fileName3);
 
     			    // Destination directory
     			    File dir7 = new File(filepath);
 
     			    // Move file to new directory
     			    boolean success11 = file2.renameTo(new File(dir7, file2.getName()));
     			    if (!success11) {
 
     			        // File was not successfully moved
     			    	System.out.println("File not moved from fail");
     			    }
     			   else
     			    	System.out.println("File moved from fail");
 
 
 
 
 
 
 
 
        		}
 
        		if(content5!=null){
 
        			 System.out.println("in corrupt");
        			 File file3 = new File("D:\\checkpdf\\corrupt\\" +fileName5 );
 
        			 String readme="readme.txt";
 
 
      			    // Destination directory
      			    File dir8 = new File(filepath);
 
      			    // Move file to new directory
      			    boolean success111 = file3.renameTo(new File(dir8, file3.getName()));
      			    if (!success111) {
      			    	System.out.println("File not moved from corrupt");
      			        // File was not successfully moved
      			    }else{
      			    	System.out.println("File moved from corrupt");
 
 
      			  try {
   			        BufferedWriter out = new BufferedWriter(new FileWriter(filepath +"\\" +readme));
   			        out.write("Invalid input file");
   			        out.close();
   			    } catch (IOException e) {
   			    }
 
 
        		}}
 
        	}
 
 
        //    }
 
 
 
 
 
 
          }
		automation1.main(args);
 
 
    	if(chld.length==0)
    	{
    		automation1.main(args);
 
    	}
            }
	}
 
 
Created by GeSHI 1.0.7.20

Here i am calling the main function again and again using automation1.main(args) at line no 299 and 304.

Please help me in this issue.