Text block breaks syntax highlighting if an odd number (>=3) of double quotes appear inside the text block

As soon as a text block contains an odd number (>=3) of double quotes, the rest of the file is colored as if it were part of the text block (but there’s no compilation errors & things like autocompletion etc. work, it’s just syntax highlighting that breaks).

Environment

• Operating System: Windows 10
• JDK version: 13.0.1
• Visual Studio Code version: 1.42.0
• Java extension version: 0.55.1

Steps To Reproduce

1. Create a Java file with a text block that contains 3 double quotes, e.g.

class Foo {

    private static final String BAR = """
        1"
        2"
        3"
        """;

    private static void baz() {}

}

Current Result

Notice how the baz method etc. are fully orange.

Expected Result

Syntax highlighting is correct.

[pangoleaf]

I’ve just come across the same issue as with the post by @Eskibear above.

I think, if possible, at a basic level all double quotes inside triple quotes blocks should be treated as automatically escaped as that’s how the compiler sees it.

[Eskibear]

(originally reported by @jflorez-planittesting)

Environment:

• VS Code Version: 1.67.0
• Java Extension Pack Version: 0.22.4
• JDK Type & Version: openjdk version “17.0.2” 2022-01-18
• OS Type & Version: macos 12.3.1 (21E258)

Step to Reproduce: create a text block with a json inside it, add a http URL to a JSON value

Expected Behavior: Syntax highlighting is unaffected

Actual Behavior: Syntax highlighting inside the text block and in subsequent Java code is altered and colours deviate from the configured theme