Any character including newline – Java Regex

The dot cannot be used inside character classes.

See the option Pattern.DOTALL.

Pattern.DOTALL Enables dotall mode. In dotall mode, the expression . matches any character, including a line terminator. By default this expression does not match line terminators. Dotall mode can also be enabled via the embedded flag expression (?s). (The s is a mnemonic for “single-line” mode, which is what this is called in Perl.)

If you need it on just a portion of the regular expression, you use e.g. [\s\S].

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