All Questions
105 questions
0
votes
1
answer
29
views
Trying to read Split Zip File throws ZipException in zip4j
I am having a split zip file test_10G.zip.001 and test_10G.zip.002. I am trying to use isSplitArchive() Function from zip4j. But I am getting an exception saying Zip headers not found. Probably not a ...
- 19
0
votes
0
answers
89
views
Extracting large password protected 7zip files whilst streaming?
I have a requirement to unzip password protected 7zip files from AWS S3 to a container that has limited space.
The problem is I can't download the entire zip file and then attempt to extract it ...
- 3
1
vote
1
answer
204
views
Compress using 7zip with password protection in java
I have an encrypted file which I need to compress using 7zip with password protection. I couldn't find any useful reference online. I'm new to this zip file stuff and I don't have an idea if this ...
- 351
2
votes
1
answer
96
views
Unable to delete file after using SevenZip.openArchive method in java
In my endpoint I receive the content of a file as String in format base64.
Unzipping works fine with SevenZip library, no problems there.
But after executing this line
archive = SevenZip.openInArchive(...
- 117
0
votes
1
answer
556
views
Java code for unzip 7z file with password
I have tried to unzip the 7z file in Java code but I'm getting "Bad 7z signature"
Any suggestions would be helpful..
I've used UTF-16LE and UTF-16 both throwing same error
Below is the code ...
- 1
-1
votes
1
answer
323
views
Compress a folder using 7-zip in Linux with Java
I have the following function in my code.
public static void runExecutable(String filePath, String command, boolean commandLine, boolean wait) {
InputStream inputStream = CommonMethods.class....
- 31
0
votes
0
answers
215
views
7za command line from java process builder
I have a Docker container where the base image is Corretto 17. I have also installed p7zip in the image using 'yum install -y p7zip'. Additionally, I created a user, switched to that user, and copied ...
0
votes
0
answers
370
views
7z compression and AES 256 encryption in java
I am trying to write Java code which can compress any file in .7z format and encrypt it with AES 256. I need to compress and encrypt a file through Java code and send it to a user. They then ...
1
vote
0
answers
284
views
How to correctly unzip .7z archive with SevenZFile class?
I want to unzip a .7z archive but I'm facing a weird issue.
Maybe I didn't understood well how to use the "SevenZFile" class from org.apache.commons:commons-compress:1.20.
Here is my method ...
- 439
0
votes
0
answers
229
views
Java 7 Zip-JBinding Truncated zip file extracted from ISO
I am using below code (link to full code) to extract zip file which is inside iso file using 7-zip-JBinding.
for (ISimpleInArchiveItem item : simpleInArchive.getArchiveItems()) {
...
- 3,757
0
votes
1
answer
1k
views
How to create password protected zip/7zip file using apache.compress
In my Android project, I'm using below dependency in my build.gradle file to support extraction/compression of archive files
implementation 'org.apache.commons:commons-compress:1.21'
I want to know ...
- 1,122
0
votes
0
answers
1k
views
Command to extract password protected zip file using p7zip
I'm using an open source GitHub project AndroidP7Zip which is an Android wrapper over p7zip to support zip, 7zip and other archive formats for Android project.
From android side implementation we pass ...
- 1,122
0
votes
1
answer
1k
views
org.tukaani.xz.CorruptedInputException: Compressed data is corrupt while extracting 7z archive File in java
Getting org.tukaani.xz.CorruptedInputException: Compressed data is corrupt error while extracting 7z file. i am using common-compress-1.21.jar and xz-1.9.jar.here is my code
File f = new File(&...
- 67
1
vote
1
answer
839
views
How to check if an InputStream 7Z archive file is password protected or not?
I have used commons-compress-1.21.jar
File f = new File("/home/user/Desktop/test.7z");
SevenZFile sevenZFile = new SevenZFile(f);
SevenZArchiveEntry entry = sevenZFile.getNextEntry();
...
- 67
0
votes
0
answers
438
views
How to extract 7z files content in String
I am trying to extract a 7z file which contains multiple XML entries. I am able to do this for zip format but for 7z its giving me error. For zip format I am using Enumeration to get the entries which ...
1
vote
0
answers
74
views
Extracting 7z files as String fails with ArrayIndexOutofBoundsException -1
I am trying to extract 7z file containing XMLs as String, I am using below code:
private static String getXML( InputStream in )
{
String content = null;
try
{
...
0
votes
1
answer
1k
views
How to create 7z file with Password protection?
I am able to create a 7z file but want to create the file with a password, I tried with the set compression method but there is not an option to set the key, Please help me how I can create a password-...
0
votes
0
answers
127
views
sevenzipjbinding: How do I properly close file handles as they become unneeded?
We have an application that uses sevenzipjbinding to bundle and transport content. 99% of the time, everything goes smoothly, however there are some edge cases where these zip files contain upwards of ...
- 1,731
0
votes
2
answers
1k
views
Extract 7z file in android
I am working on android application that requires extracting .7z files. I am getting error at the first step. All the parameters look fine in function call. I would be very thankful if someone could ...
- 1
5
votes
1
answer
2k
views
Spark Reading .7z files
I am trying to read the spark .7z files using scala or java. I dont find any appropriate methods or functionality.
For the zip file, i am able to read as the ZipInputStream class takes a Input stream, ...
- 4,000
1
vote
0
answers
61
views
Java un-compres 5G 7z file
I am trying to decompress a 5G text file with Apache commons compress version 1.9...
public String unZipFile(String pathFileName, String saveFilePath) throws IOException {
SevenZFile ...
- 39
5
votes
4
answers
2k
views
Java 7zip compression of a String
I would like to compress an String manually defined to 7z in Java. So then I could convert it to base64. I found many examples compressing files to 7z and then saving into new File.
I just try the ...
- 6,538
0
votes
0
answers
134
views
How to read only the names of files inside the 7zip file?
I have the requirement to read only the names of files inside 7zip file using java.I do not want to decompress the file .
I
String archiveFilename="002.7z";
SevenZFile sevenZFile = new ...
- 31
1
vote
0
answers
3k
views
How to unarchive a symbolic link from a .7z file, keeping it as symbolic link?
Trying to write java code to extract .7z file in Linux. My .7z file contains symbolic link, but after extraction symbolic links are converted to text files.
How can I extract symbolic link from a .7z ...
- 11
3
votes
0
answers
183
views
Java NIO 7-Zip FileSystem Provider
I've been trying to find a 7-ZIP FileSystem Provider for Java NIO, unsuccessfully. I'm a bit surprised that one does not seem to exist. Is anyone aware of one?
- 901
8
votes
3
answers
4k
views
Java 7zip compression is too big
I have a Java program which searches for a folder with the date of yesterday and compresses it to a 7zip file and deletes it at the end. Now I have noticed that the generated 7zip archive files by my ...
- 917
-2
votes
1
answer
540
views
How to check for an encrption for a 7z file?
I need to check a 7z file for encryption.
I am using sevenzipjbind and using the property ENCRYPTED, but it seems it involves a lot more steps after that which I am not able to certain.
2
votes
1
answer
879
views
Apache commons compress 7z file size way bigger than p7zip compression
When I zip 500mb of html files, p7zip does it in a couple of seconds and the filesize is 7mb (Without any custom settings, just 7z a filename.7z /folder).
Thus I expected apache commons compress to ...
2
votes
1
answer
1k
views
7zip cmd extracting using ProcessBuilder in java
I have a problem extracting an archive to the desired category using Java 10 ProcessBuilder and 7z.exe (18.05) with command line. The exact same command works as intended when I use Windows CMD, but ...
- 487
-1
votes
1
answer
70
views
Java WAR file deployment issue
we are trying to replace a class file in the WAR using 7-zip.
While redeploying the WAR in jboss server we are facing bean exception error.Any help on this...
"org.jboss.msc.service.StartException in ...
- 536
3
votes
1
answer
1k
views
Commons Compress using 7z gives Stream is not in the BZip2 format
I have this password protected 7z archive that can be properly opened and extracted with 7z alone. But using the code below:
byte[] PASSWORD = "secret".getBytes();
String fileName = "r:/txt....
- 2,042
2
votes
0
answers
368
views
Unable to unzip a file using 7z from Java on Linux machine
I have a Java code that is running on a Linux machine.
While the code is running it downloads certain files from the internet. Those '.Z' files, so i am trying to use the '7z' program to extract the ...
- 195
0
votes
1
answer
1k
views
SevenZFile - Apache Commons Compress 1.15, Uncompress
While Uncompressing .7z file, Empty folders are ignored, I want to consider Empty folders as well after uncompressing any .7z file.
My Code is as below
SevenZFile sevenZFile = new SevenZFile(new ...
0
votes
1
answer
348
views
Unable to use SevenZFile at Java6 to unzip 7z File
I can unzip 7z File by using org.apache.commons.compress.archivers.sevenz.SevenZFile at Java 7 and java 8. But I cant do that by using Java6. Can you please help me to fix that issue by Java 6 ? ...
- 6,165
1
vote
1
answer
2k
views
Issue with unpacking/decrypt password protected (AES 256) 7z file in java using apache compress/org.tukaani.xz
Getting org.tukaani.xz.CorruptedInputException: Compressed data is corrupt error while trying to decrypt a password protected (AES 256) 7z file. Whereas without password protected 7z file getting ...
- 71
0
votes
0
answers
463
views
Reading a spring boot "jar" and/or changing (injecting a class to) a spring boot fat jar
By default, spring-boot builds a "fat" "jar" (not a normal jar).
Is it possible to unjar a "fat" spring-boot jar?
Is it possible to change a "fat" spring-boot jar?
Obviously, my questions aren't ...
- 119
1
vote
1
answer
706
views
How to decomrepss a password protected 7zip archive with Java on Linux?
In my project, we need to extract a file from a password protected 7zip archive.
My source code as following:
try {
ProcessBuilder pb = new ProcessBuilder("7z", "e", "bootstrap.7z", "-so", "...
- 189
-2
votes
1
answer
290
views
Zip files in particular folder using Java
I just wanted a code to 7Z files(only .pdf and .txt files) in a particular folder and place it in same folder.
The input I can give is the folder location.
Can anyone help in this out?
Is it can be ...
- 52
0
votes
1
answer
1k
views
No changes after I edit a jar file
Sorry if the title doesn't say what I'm trying to do very accurately but I wasn't really sure how to describe it in one sentence. Basically I have a jar file with a java file inside it, and I want to ...
- 191
1
vote
0
answers
1k
views
Android : decrypt and copy sqlite file from assets folder
I have an encrypted sqlite db file that I am copying to the memory on install and decrypting.I am doing this as a safety feature to protect my db.
I encrypted the sqlite file using 7zip program using ...
- 558
0
votes
1
answer
100
views
Getting jar content
I'm trying to open some .jar archieve and get files from it.
What i've got now:
As i know .jar==.zip, so i used 7zip. It opens my jar and says that headers broken and still succeeded extraction.
I ...
- 31
2
votes
1
answer
3k
views
Java Code to Open a password protected zip file which is opening only with 7zx and keka in mac OS
I have a password protected zip file which is opening only with 7zx and keka in mac.
I have to write the code in java to decompress password protected zip file and then do some operation on it.
I have ...
- 907
0
votes
2
answers
857
views
how to fix OutOfMemoryError android studio
i have a application for extract 7zip file
i use this two lib for extract
compile 'org.apache.commons:commons-compress:1.12'
compile files('libs/xz-1.3.jar')
and this is my code
public void ...
- 21
0
votes
2
answers
1k
views
Programatically Extract Single Specific File From 7zip Archive - Java - Linux
I would really appreciate your input on the below scenario please.
The requirements:
- I have a 7zip archive file with several thousands of files in it
- I have a java application running on linux ...
0
votes
0
answers
677
views
ZipEntry setSize not working + How does 7Zip do it? (JAVA)
I was wondering.
I have this code to zip multiple files:
try (ZipOutputStream out = new ZipOutputStream(new FileOutputStream(outputZip))) {
for (Entry<File, String> entry : fileMap....
- 784
3
votes
1
answer
946
views
Compressing folder into 7z in java
I want to compress a folder into .7z extension using java. Iam trying using the below code but it is creating a new file and appending all the source files content into one single file. Can anyone ...
- 301
6
votes
3
answers
12k
views
Decompressing a file like 7zip with Java
I need to open a compresed file (zml, i don't couldn't find information about that extension) like 7zip does it with java.
I have a zml file, if I open it with 7zip it asks me for the password, then ...
1
vote
0
answers
447
views
Find specific file in 7zip archive
I'm using Apache Commons Compress to parse entries in a 7zip archive. I need to be able to find a specific file (e.g. "thisfile.xml"), I was wondering if there is a better way of doing it other than ...
- 512
2
votes
1
answer
6k
views
How to self-extract .jar file and auto run
I am wondering how I can self-extract a .jar file (and supporting files) then auto run the .jar file.
This would basically mean the application as a whole would run from the one click.
I have read ...
- 409
0
votes
1
answer
74
views
FileNotFound Exception with
I have the following code;
String files="";
for (int i=0; i<filelist.size()-1;i++)
{
files=files+filelist.get(i).getPath()+", ";
}
files=files+filelist.get(filelist.size()-1).getPath();
System....
