UnsupportedClassVersionError when running CLI v1.30.0

[sschutten]

Description

Since version v1.30.0 I get the following exception when I try to run the Structurizr CLI:

Exception in thread "main" java.lang.UnsupportedClassVersionError: com/structurizr/cli/StructurizrCliApplication has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0

I'm running the Java 8 Update 371 runtime environment (the latest as of writing). The installation page mentions I will need Java version 11+, but I can't find a runtime environment newer than 8. Do I really need to install the JDK or is there a more recent version of the runtime I'm unaware of?

Steps to reproduce

1. Install Java 8 Update 371
2. Download Structurizr CLI 1.30.0
3. Run structurizr

Screenshot

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Code sample

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Configuration

Structurizr CLI v1.30.0 Java 8 Update 371 Windows 11

Severity

Minor

Priority

Low

Resolution

I have no budget, please fix this for free

More information

No response

[simonbrowndotje]

Active support for Java 8 ended in 2022, so you will need to upgrade your JDK/JRE to 11+.