Java reated messages have to be replaced with common ones

### 🤔 What's the problem you're trying to solve?

There are a few messages which are attached to Java; There are multiple realizations of Gherkin runtime in different languages. They could not use Java-related messages

### ✨ What's your proposed solution?
Rename messages:
JavaMethod to Method
JavaStackTraceElement to StackTraceElement

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Start by locating the definitions and usages of JavaMethod and JavaStackTraceElement in the message protocol and its language implementations. Rename them to Method and StackTraceElement consistently, then run the repository's available tests to verify that all implementations still agree on the common message names.

Written by the indexing model from the issue text.