Error computing hover: **/package-summary.html not found in JavaDoc jar

[rubin55]

In some cases (see attached, example with Apache Commons CLI 1.4) it seems that a javadoc.jar does not contain a package-summary.html which the code seems to assume must exist. This causes spurious backtraces in the console.

Environment

• Operating System: Windows 10
• JDK version: 1.8.131
• Visual Studio Code version: 1.13.1
• Java extension version: 0.6.0

Steps To Reproduce

1. Open a maven project with a dependency on apache-commons-cli-1.4
2. Hover around some code that uses commons-cli
3. See backtrace in Output tab

Current Result

Backtraces when using a library with a javadoc.jar that's missing a package-summary.html file.

Expected Result

Silence! What can I do about it? at most I would expect a WARN message if it impacts my ability to auto-complete or somesuch.

Sample Project and Attached backtrace.txt

https://github.com/rubin55/silver
backtrace.txt