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Java Local Development Environments How it Works Check Your Installation

Tracy Cano
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Tracy Cano
Java Web Development v2 Techdegree Student 8,455 Points
Posted by Tracy Cano
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Tracy Cano
Java Web Development v2 Techdegree Student 8,455 Points

Java 21 output is being rejected by challenge

I installed Java 21 and ran java -version in Terminal. My output is:

java version "21.0.12.1" 2026-08-18 LTS Java(TM) SE Runtime Environment (build 21.0.12.1+1-LTS-4) Java HotSpot(TM) 64-Bit Server VM (build 21.0.12.1+1-LTS-4, mixed mode, sharing)

I pasted these results into results.txt, but the challenge says the output doesn't look right. Is there a specific format the challenge checker expects?

results.txt 
java version "21.0.12.1" 2026-08-18 LTS
Java(TM) SE Runtime Environment (build 21.0.12.1+1-LTS-4)
Java HotSpot(TM) 64-Bit Server VM (build 21.0.12.1+1-LTS-4, mixed mode, sharing)

2 Answers

Travis Alstrand
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Travis Alstrand
Treehouse Teacher
Travis Alstrand
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Travis Alstrand
Treehouse Teacher

Hey there Tracy Cano 👋

I'm sorry for the issue here! The only thing I can think of is now there is a 4th part to the version number that maybe the backend of this challenge is not accepting. For example mine passed with 21.0.5 and the current is 21.0.12.1.

I see that you've passed this challenge since posting this though. What was it that did it for you?

I may have to just remove this challenge if it's being difficult with the current Oracle download

Tracy Cano
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Tracy Cano
Java Web Development v2 Techdegree Student 8,455 Points
Tracy Cano
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Tracy Cano
Java Web Development v2 Techdegree Student 8,455 Points

I ended up running the java -version in the treehouse workspace which gave me the result that I needed to pass the challenge. For awhile, I was asking my computer terminal the same question, but it was giving me the result I had posted in the original question.

Travis Alstrand
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Travis Alstrand
Treehouse Teacher
Travis Alstrand
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Travis Alstrand
Treehouse Teacher

That is very strange as it's after an instruction on installing Java on your machine. I'll have to try and look into this and see if it's fixable or if I'll just have to remove it.

Thank you so much for bringing this to our attention and providing your solution!! ⭐