[news.eclipse.newcomer] Problem in Merging two java files Using IStorage

[debasis1982@xxxxxxxxx (Debasis Mishra)]

Hi All,
I am trying to merge java files using IStorageMerger API.
I am calling DelegatingStorageMerger.merge();

I am trying with the below code

 private String merge(File srcTarget, File srcOldFile) throws 
CoreException {
		
IPath projectIPath = new Path(srcTarget.getAbsolutePath());

IFile file = ResourcesPlugin.getWorkspace().getRoot          
().getFileForLocation(projectIPath);
file.refreshLocal(IResource.DEPTH_INFINITE, new  NullProgressMonitor());
		
IPath rightprojectIPath = new Path(srcOldFile.getAbsolutePath());
IFile rightfile = 
ResourcesPlugin.getWorkspace().getRoot().getFileForLocation(rightprojectIPath);
rightfile.refreshLocal(IResource.DEPTH_INFINITE, new 
NullProgressMonitor());
		
		
IStorageMerger 
delegatingStorageMerger=DelegatingStorageMerger.createTextMerge();
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
File otherFile=  null;
try {
otherFile = FileUtil.write(srcTarget.getParentFile().getPath() 
,srcTarget.getName()+"aa", "");
		} catch (FrameworkException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
IPath otherIPath = new Path(otherFile.getAbsolutePath());
IFile otherIfile = 
ResourcesPlugin.getWorkspace().getRoot().getFileForLocatio(otherIPath);
otherIfile.refreshLocal(IResource.DEPTH_INFINITE, new 
NullProgressMonitor());
		
IStatus mergeStatus = delegatingStorageMerger.merge(byteArrayOutputStream 
, 
				file.getCharset(), rightfile, file,otherIfile,new 
NullProgressMonitor());
		
return byteArrayOutputStream.toString();
}

But merge is not happening.
Could anybody please help me in solving this issue as it is verymuch 
important in this project and also in recession time.

Thanks And Regards in Advance
Debasis