Skip to content

java.util.zip.ZipException: zip END header not found #1259

Open
@juaps

Description

@juaps

What Operating System

MacOS (Latest)

Debug Code

console.log
debug.log
latest.log

Describe the bug

Minecraft (original license) refuses to launch on macOS Sonoma 15.3 (MacBook Pro, M1 Pro, 16GB RAM). The issue persists across all modpacks (e.g., FTB Evolution, ATM9)

What I’ve Tried:
Tested Temurin JDK 17, 21, Oracle JDK 20, system-default Java and java 15, 16, 17 ,18,19, 20 and 24.
Configured launchers (FTB App, Prism, MultiMC) to use specific Java paths.

Fresh Installs:

Deleted .minecraft, libraries, and modpack folders. Reinstalled Minecraft/modpacks 5+ times.

Modpacks:
Tried FTB Evolution 1.21.1, ATM9, and like 4 more modpacks – all fail with the same error.

Primary error:
java.util.zip.ZipException: zip END header not found
at net.creeperhost.CFMalwareScanner.scanFile

Additional warnings:
Could the zip END header error indicate a deeper filesystem/permission problem?

Any overlooked steps to resolve this?

Reproducibility:

100% consistent across all installations.

Steps to reproduce

Steps to reproduce:

Environment:
macOS Sonoma 15.3 (MacBook Pro M1 Pro, 16GB RAM).
Minecraft Launcher (official) / FTB App / Prism Launcher.

Setup:
Install JDK 17 (or 21) and configure launcher to use it.
Download any modpack (e.g., FTB Evolution 1.21.1).

Actions:
Launch the instance.
Observe crash during modloading with error:
error:
java.util.zip.ZipException: zip END header not found
at net.creeperhost.CFMalwareScanner.scanFile

Additional Context:
Occurs even after:
Deleting .minecraft, libraries, and modpack folders.
Testing multiple Java versions (17/21) and launchers.

Expected Result:
Minecraft/modpack launches successfully.

Actual Result:
Immediate crash with zip END header error and LWJGL warnings.

Expected behaviour

Expected Result: Minecraft/modpack launches successfully. Actual Result: Immediate crash with zip END header error and LWJGL warnings.

Screenshots

Image Image

Additional information

No response

Metadata

Metadata

Assignees

No one assigned

    Labels

    bugSomething isn't working

    Type

    No type

    Projects

    No projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions