At Codacy we ran into this issue analysing some Javascript files. It seems to loop infinitely consuming the entire heap and failing with OutOfMemoryError
You can find a reproducing repository here
Affects PMD Version:

• 6.18.0
• current master

Description:
PMD fails with OutOfMemoryError parsing a Javascript file
Code Sample demonstrating the issue:

(``
);

note: Removing the newline changes behavior:

(``);

is parsed correctly.
Running PMD through: CLI

Codacy Issue:
https://github.com/codacy/codacy-meta/issues/207

cc: @andreaTP