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Eclipse 2021-06: Server Tomcat v8.0 Server at localhost failed to start. [message #1842980]

Thu, 08 July 2021 13:43

Bruno Melloni

Messages: 13
Registered: August 2020

Junior Member

I used Eclipse for over a decade. Never had this issue before, not even with Eclipse 2021-03.

Is there a bug in Eclipse 2021-06? Or did I misconfigured something that I am not thinking of?

Eclipse version: 2021-06
JDK used to run Eclipse: Adopt OpenJDK 16.
JDK used to compile and run applications: Adopt OpenJDK 8 (1.8.0.292-b10)
JDK used to run Tomcat: Adopt OpenJDK 8 (1.8.0.292-b10) explicitly set in catalina.bat JAVA_HOME. It is also the JDK specified in the Eclipse Tomcat server configuration Bootstrap Entries JRE System Library.

Tomcat version: 8.0.53
- Launches and operates normally from the command line startup.bat
- All Eclipse Tomcat config values are normal.

Problem:
- Attempting to start the Tomcat server from Eclipse, regardless of whether I published a normal webapp, a webapp with static content or even without any webapps... fails to start.
- Error message: "Server Tomcat v8.0 Server at localhost failed to start."
- Nothing even shows in the console, as if it could not find the server folder (D:\work\soft\tomcat-8.0.53-2021-AdoptOpenJdkJ8 - which it found fine when I configured it).

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Re: Eclipse 2021-06: Server Tomcat v8.0 Server at localhost failed to start. [message #1842982 is a reply to message #1842980]

Thu, 08 July 2021 15:27

Nitin Dahyabhai

Messages: 4438
Registered: July 2009

Senior Member

Is anything left in the Debug View?

_
Nitin Dahyabhai
Eclipse Web Tools Platform

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Re: Eclipse 2021-06: Server Tomcat v8.0 Server at localhost failed to start. [message #1842984 is a reply to message #1842982]

Thu, 08 July 2021 15:52

Bruno Melloni

Messages: 13
Registered: August 2020

Junior Member

Hmm... I just restarted and I see something different: An internal error occurred during: "Initializing Java Tooling".
null argument:

And no, nothing much in the debug view. Just the name of the server.

---
Probably worth mentioning that all of the projects (except servers) were imported from Eclipse 2021-03 (different version of JDK 8 and Tomcat 8.0.x) then rebuilt clean.

---

I tried restarting with "eclipse -clean". I am now getting the same "Initializing Java Tooling" null argument error even when simply doing a Build Clean.

Something is definitely corrupt.

---
EDIT:
- I just found a comment to close all projects and restart eclipse. Then open the projects one by one.
- But no... the Java tooling error went away but "Server Tomcat v8.0 Server at localhost failed to start." still happens, even with no projects open at all.

---
I think I'll go back to 2021-03.

[Updated on: Thu, 08 July 2021 15:57]

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