Cannot get references of a method within a class

[IMS94]

Description:

When find all references of a method within a class is clicked (in VS Code plugin), it doesn't show any references and the following error is printed in the plugin's output.

rename/sources/project/modules/module2/module2.bal', [16:25], error: 'class io.ballerina.compiler.api.impl.symbols.BallerinaMethodSymbol cannot be cast to class io.ballerina.compiler.api.impl.symbols.BallerinaSymbol (io.ballerina.compiler.api.impl.symbols.BallerinaMethodSymbol and io.ballerina.compiler.api.impl.symbols.BallerinaSymbol are in unnamed module of loader 'app')'}
java.lang.ClassCastException: class io.ballerina.compiler.api.impl.symbols.BallerinaMethodSymbol cannot be cast to class io.ballerina.compiler.api.impl.symbols.BallerinaSymbol (io.ballerina.compiler.api.impl.symbols.BallerinaMethodSymbol and io.ballerina.compiler.api.impl.symbols.BallerinaSymbol are in unnamed module of loader 'app')
	at io.ballerina.compiler.api.impl.BallerinaSemanticModel.getInternalSymbol(BallerinaSemanticModel.java:325)
	at io.ballerina.compiler.api.impl.BallerinaSemanticModel.references(BallerinaSemanticModel.java:178)
	at org.ballerinalang.langserver.util.references.ReferencesUtil.lambda$getReferences$1(ReferencesUtil.java:67)
	at java.base/java.lang.Iterable.forEach(Iterable.java:75)
	at org.ballerinalang.langserver.util.references.ReferencesUtil.getReferences(ReferencesUtil.java:65)
	at org.ballerinalang.langserver.BallerinaTextDocumentService.lambda$references$4(BallerinaTextDocumentService.java:275)
	at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1700)
	at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.exec(CompletableFuture.java:1692)
	at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:290)
	at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1020)
	at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1656)
	at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1594)
	at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:177)

This is the class I used,

# Person  
public class Person {
    private string name;
    private int age;
    private string identificationNo;

    public function init(string name, int age, string identificationNo) {
        self.name = name;
        self.age = age;
        self.identificationNo = identificationNo;
    }

    public function getName() returns string {
        return self.name;
    }

    public function getAge() returns int {
        return self.age;
    }

    public function getIdentificationNo() returns string {
        return self.identificationNo;
    }
}