How to Resolve java.util.zip.ZipException: Error in the Opening Zip File

1. java.util.zip.ZipException: error in opening zip file
2. Causes of java.util.zip.ZipException: error in opening zip file
3. Solutions of java.util.zip.ZipException: error in opening zip file

Today’s article discusses the reasons behind the java.util.zip.ZipException: error in opening zip file message and provide the possible solutions to this problem. Let’s start by understanding the error.

java.util.zip.ZipException: error in opening zip file

There is a Jar file that has other nested Jars included within it. The following exception is generated when we attempt to use this file to invoke a new JarFile() constructor:

java.util.zip.ZipException : error in opening zip file

This Jar file’s functionality is not affected when its contents are manually unzipped and then zipped.

Causes of java.util.zip.ZipException: error in opening zip file

The following are some possible reasons for the java.util.zip.ZipException: error in opening zip file:

• It occurs if there is a space in the path of the profile directory that’s being used. Such as C:/Program Files /<..>.
• Check if the jar file is corrupted. This error will occur if we can not unzip the file because it has been damaged.
• When the JVM (Java Virtual Machine) cannot access a temp directory, either because the directory does not exist or because the user does not have permission to write in it.

Solutions of java.util.zip.ZipException: error in opening zip file

• For optimal results, while installing EngageOne Digital Delivery on a WebSphere server, ensure the profile you’re using doesn’t include any extra spaces.
• Since it is impossible to determine which specific file is corrupted. So, replacing all .jar files on the server with copies from a server that is not experiencing issues will resolve it.
• Verify using a file archiver like WinRAR or WinZip that can extract the jars successfully. If it cannot, then the .jar files are broken.