Suspicious regex expression argument
Reports calls to String.replaceAll() or String.split() where the first argument is a single regex meta character argument.
The regex meta characters are one of .$|()[{^?*+\. They have a special meaning in regular expressions. For example, calling "ab.cd".replaceAll(".", "-") produces "-----", because the dot matches any character. Most likely the escaped variant "\\." was intended instead.
Using File.separator as a regex is also reported. The File.separator has a platform specific value. It equals to / on Linux and Mac but equals to \ on Windows, which is not a valid regular expression, so such code is not portable.
Example:
After the quick-fix is applied:
Locating this inspection
- By ID
Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.
ReplaceAllDot- Via Settings dialog
Path to the inspection settings via IntelliJ Platform IDE Settings dialog, when you need to adjust inspection settings directly from your IDE.
Inspection ID: ReplaceAllDot
Suppressing Inspection
You can suppress this inspection by placing the following comment marker before the code fragment where you no longer want messages from this inspection to appear:
More detailed instructions as well as other ways and options that you have can be found in the product documentation:
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By default bundled with: |