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.
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: |