Miscellaneous¶

August 24, 2024
in Miscellaneous
3 min read

Alternatives to Oracle Java / Web Start

There are a few alternatives to Oracle Java, including an alternative for Java WebStart (which Oracle deprecated).

Name	Price	JCK certified	Versions	OpenJFX/JavaFX¹	Supported platforms
Eclipse Adoptium	free	no	8+	no	Linux (.deb, .rpm, .tar), Mac, Windows
Amazon Corretto	free	yes	8, 11	Bundled with 8 only	Linux (.deb, .rpm, .tar), Mac, Windows
Azul Zulu	free	yes	6+	Bundled (choose JDK FX download)	Linux (.deb, .rpm, .tar), Mac, Windows
Bellsoft Liberica	free		8+	Bundled (choose Full JDK download)	inux (.deb, .rpm, .tar), Mac, Windows
Oracle OpenJDK	free	yes	7+		Linux (⚠ .tar only), Mac, Windows
Red Hat OpenJDK	free	yes	8+	Separate download for Java 8, Windows only	Linux (⚠ RHEL only), Windows

Due to Oracle no longer releasing updates for long-term support (LTS) releases under a permissive license, others have begun offering builds.Linux distributions have always offered their builds, and Windows also offers one now, which can be installed with the Windows Package Manager.

August 6, 2024
in Miscellaneous
2 min read

[Fixed] Unsigned application requesting unrestricted access to system

Subject/ Problem Description

The following error is displayed when launching applications signed with the MD5withRSA or MD5withDSA algorithms after upgrading to Java.

Unable to launch the application.
Unsigned application requesting unrestricted access to system
Unsigned application requesting unrestricted access to system. 
The following resource is signed with a weak signature algorithm MD5withRSA 
and is treated as unsigned: http://example.net/ExampleApplication.jar

Symptoms / Root Cause:

Applications signed with the MD5withRSA or MD5withDSA algorithms are treated as unsigned by Java starting with the Java 8 Update 131 release.