Unzipping .zip folder with Zipme Library in Codename One - codenameone

Question

This is as a followup to the question that I asked here:
What is the correct way to display a HTML file downloaded and saved in the file system using codename one?
I am successful to display a html file from a folder using webview. The trick is to add the "file://" when setting the url as shown below:
browser.setURL("file://"+str_homePath+str_filePath);
If this is not by your design then I can file an RFE. Nonetheless, next I hit an Unzipping challenge which I think might be related to the "file://" issue above.
When unzipping a .zip file using the Zipme cn1lib, everything extracts OK on simulator but fails on device. I had to root a phone in order to see what exactly is going on. I found that some files are not extracted.
Checking on the DDMS confirmed my findings. Every so often I see this error: W/System.err: java.io.FileNotFoundException: (No such file or directory)
Then, when I try to display the index file (which should fail because of the above missing files), I get this error:
I/System.out: showKeyboard false
I/System.out: showKeyboard false
D/WebView: loadUrl=file:///data/user/0/ke.co.imedia.samplefilepath/files/17/rte.html
W/cr_media: Requires BLUETOOTH permission
E/libEGL: validate_display:99 error 3008 (EGL_BAD_DISPLAY)
Below is the code I am using to unzip:
try
{
System.out.println("Finding FILE TO UNZIP: ");
InputStream zipFile = Storage.getInstance().createInputStream("folderName"+".zip");
//InputStream zipFile = FileSystemStorage.getInstance().openInputStream(fs.getAppHomePath()+"folderName"+".zip");
fs.mkdir(fs.getAppHomePath()+"folderName");
System.out.println("ZIPPED FILE FOUND: ");
Unzip(zipFile, "/"+ "folderName");
System.out.println("UNZIPPED SUCCESFULLY");
}
catch (IOException ex)
{
Log.p(ex.getMessage(), 0);
ex.printStackTrace();
}
catch (Exception ex)
{
ex.printStackTrace();
}
The above codes calls the following method as copied from the link below, with some edits that I hoped would allow extracting to a folder by checking whether the next entry during the unzipping process is a directory or not.
https://github.com/codenameone/ZipSupport
public void Unzip(InputStream is_zipFile, String str_dirDest)
{
InputStream is;
try
{
is = is_zipFile;
ZipInputStream zipStream = new ZipInputStream(is);
ZipEntry entry;
// create a buffer to improve copy performance later.
byte[] buffer = new byte[2048];
System.out.println("TRYING TO UZIP: ");
while ((entry = zipStream.getNextEntry()) != null)
{
FileSystemStorage fs = FileSystemStorage.getInstance();
String str_name = entry.getName();
String dir;
String str_outdir = FileSystemStorage.getInstance().getAppHomePath();
//FileOutputStream fileoutputstream;
File newFile = new File(str_outdir, str_name);
boolean overwrite = false;
if (str_outdir.length() > 0)
{
str_outdir = str_outdir + "/" + str_dirDest;
}
//extractFile(zin, outdir, name);
String outpath = str_outdir + "/" + entry.getName();
OutputStream output = null;
try
{
if (entry.isDirectory())
{
fs.mkdir(str_outdir + "/" + str_name);
entry = zipStream.getNextEntry();
continue;
}
else
{
File file = new File(str_outdir + File.separator + str_name);
File parent = file.getParentFile();
if (!parent.exists())
{
parent.mkdirs();
}
}
System.out.println("UNZIPPING:- " + str_name);
output = FileSystemStorage.getInstance().openOutputStream(outpath);
int len = 0;
while ((len = zipStream.read(buffer)) > 0)
{
output.write(buffer, 0, len);
}
}
catch (Exception e)
{
e.printStackTrace();
//Dialog.show("Unzipping Error!", ""+e, "Ok", null);
}
finally
{
if (output != null)
{
output.close();
}
}
}
} catch (IOException ex) {
Log.p(ex.getMessage(), 0);
}
}