call hierarchy does not find callers (but it should)

[clembo590]

Environment

• Operating System: macos 12.0.1
• JDK version: 11
• Visual Studio Code version: 1.62.2
• Java extension version: java extension pack v0.18.6

Steps To Reproduce

I have created a public repo so that the issue is easily reproducible:

step1: clone this repo:

git clone https://github.com/clembo590/issues.git --branch vscode-java/issues/2219

step2: run mvn clean install

step 3: "import the project in vscode"
open MyCustomizer.java and select the method called customize
make a right click and select Show call hierarchy
Vscode should (and do) find a method (see screenshot)

step 4: open pom.xml and uncomment the dependency:

step 5:
open MyCustomizer.java and select the method called customize
make a right click and select Show call hierarchy
--> VSCODE does not find any calls to this method: that is an error! vscode should find the same call hierarchy as on step 3 (IntelliJ shows correctly the call hierarchy)

[clembo590]

Hello.... Anyone working on this ?

[rgrunber]

Thanks for the example. I'm able to reproduce this with VS Code and with Eclipse as well, so could be an issue with JDT. Likely an upstream issue.

I tried a simple example to confirm that calling some interface's method, should result in all implementations showing the implemented method as having been referenced once (or have an entry pointing to the usage in the call hierarchy).

[clembo590]

@rgrunber any update on solving this issue ?

[snjeza]

The guava library includes the $EnumUtils class that breaks the Call Hierrachy action. The class contains a reference to a potential customize method.
I have created eclipse-jdt/eclipse.jdt.core#670
A workaround:

• add guava to the root pom directly