Java zipEntry.getSize() returns the size of the actual file and some times it returns -1 (though the file size is greater than 0). Java API document says "Returns the uncompressed size of the entr...

i have checked everywhere online and stackoverflow and could not find a match specific to this issue. I am trying to extract a pdf file that is located in a zip file that is inside a zip file (nest...

I would like to write a method that read several XML files inside a ZIP, from a single InputStream. The method would open a ZipInputStream, and on each xml file, get the corresponding InputStream,...

I have code, where ZipInputSream is converted to byte[], but I don't know how I can convert that to inputstream. private void convertStream(String encoding, ZipInputStream in) throws IOException, ...

I try to copy a Zip from a Zipinputstream to a Zipoutputstream. I store the Zip as byte[] in a Oracle database. I use Zipinputstream to decompress the zip (later I want to edit the Zip) and then ...

I can go through ZipInputStream, but before starting the iteration I want to get a specific file that I need during the iteration. How can I do that? ZipInputStream zin = new ZipInputStream(myInpu...

I am trying to read a zipped file using Kotlin and ZipInputStream into a ByteArrayOutputStream() val f = File("/path/to/zip/myFile.zip") val zis = ZipInputStream(FileInputStream(f)) //loop throug...

I am trying to unzip a String value. But I am getting a java.io.IOException: Push back buffer is full: public byte[] unzipArray(String stringToUnzip) { byte[] inputByteArray = Base64.decode(strin...

I want to reset the ZipInputStream (ie back to the start position) in order to read certain files in order. How do I do that? I am so stucked... ZipEntry entry; ZipInputStream input = new ZipInp...

There are multiple files in a .zip file, which I'm trying to get. Trying to unzip the files provides a java.lang.IllegalStateException: zis.nextEntry must not be null. How to do it the right way? ...

I am trying to find a file within a zip file and get it as an InputStream. So this is what I am doing to get it so far and I am not certain if I am doing it correctly. Here is a sample as the orig...

How can I get an InputStream for a ZipEntry from a ZipInputStream without using the ZipFile class?

Unzipping files on android seems to be dreadfully slow. At first I thought this was just the emulator but it appears to be the same on the phone. I've tried different compression levels, and eventu...

Consider the code example that put a single file test_file.pdf into zip archive test.zip and then read this archive: import java.io.*; import java.util.zip.ZipEntry; import java.util.zip.ZipInputS...

In my case I have to download images from the resources folder in my web app. Right now I am using the following code to download images through URL. url = new URL(properties.getOesServerURL() + "...

I'm trying to read a zip file, check that it has some required files, and then write all valid files out to another zip file. The basic introduction to java.util.zip has a lot of Java-isms and I'd ...

Java 7 is supposed to fix an old problem with unpacking zip archives with character sets other than UTF-8. This can be achieved by constructor ZipInputStream(InputStream, Charset). So far, so good....

Is there anyway to find/estimate the size of ZipInputStream before we completely read the stream? For instance, we can get the entry's metadata with getNextEntry before we can read the userdata. ...

I am trying to read a single file from a java.util.zip.ZipInputStream, and copy it into a java.io.ByteArrayOutputStream (so that I can then create a java.io.ByteArrayInputStream and hand that to a ...

I am currently writing an application that reads a zip file in my assets folder which contains a bunch of images. I am using the ZipInputStream API to read the contents and then writing each file t...

I have a zip file whose contents are presented as byte[] but the original file object is not accessible. I want to read the contents of each of the entries. I am able to create a ZipInputStream fro...