How to Fix ‘Jarsigner Error: Java.Lang.RuntimeException: Keystore Load […] (The System Cannot Find the File Specified)’

Home » How to Fix ‘Jarsigner Error: Java.Lang.RuntimeException: Keystore Load […] (The System Cannot Find the File Specified)’

Enhance your Jarsigner skills by learning how to handle this common verify command error

Jarsigner empowers developers and software publishers to digitally sign and verify Java codes or get a detailed view of a code signing certificate’s information. These things help underscore the authenticity and integrity of the software apps and code they create.

Did you know that the command used to verify the integrity of a digital signature can also result in code signing failure messages? Here’s a quick example of the jarsigner error java.lang.RuntimeException keystore load issue you might see that infers it cannot find the file (or “the system cannot find the path specified” if a similar message displays):

Editor’s Note: This article is one in a series of pieces we will publish over the next few weeks that aim to help resolve code signing-related errors for SignTool, Jarsigner, Electron, and Windows.

What This Jarsigner Error java.lang.RuntimeException Keystore Load Actually Means

So, seeing this code signing error message when you’re using the Jarsigner verify command is a bit misleading. The warning itself isn’t necessarily caused by an issue with the specified file in all cases; sometimes, it stems from the fact that the Jarsigner verification command you typed is incorrect.

Let’s consider some possible causes for what makes the jarsigner error java.lang.runtimeexception keystore load message appear.

Possible Cause(s)

• The file path may be mistyped or pointing to the wrong folder.
• The file in question doesn’t exist in the specified location.
• Ensure the command verify isn’t introduced by the “-” sign (i.e., the dash is missing).

How to Fix This Jarsigner-Related Error

• Double-check your code for any mistyped commands or file paths. Otherwise, it can lead to the jarsigner keystore-related error.
• Verify the file in question is, in fact, available at the specified path.
• Correct your script by adding the dash before the command verify. Here’s what it should look like:

jarsigner -verify C:\Users\file_path_to_your_jar_file\YourFile.jar

Looking for more Jarsigner code signing errors and warnings? Check out Oracle Jarsigner’s documentation.

Platform(s)/Systems Affected

Java Jarsigner (Windows, Linux, macOS).