Inspectopedia 2025.2 Help

Whitespace may be missing in string concatenation

Reports string concatenations with missing whitespaces, that is where the left-hand side ends with a Unicode letter or digit and the right-hand side starts with a Unicode letter or digit.

Example:

String sql = "SELECT column" + "FROM table";

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.

StringConcatenationMissingWhitespace
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.

Settings or Preferences | Editor | Inspections | Java | Probable bugs

Use the Ignore concatenations with variable strings option to only report when both the left and right side of the concatenation are literals.

Inspection options

Here you can find the description of settings available for the Whitespace may be missing in string concatenation inspection, and the reference of their default values.

Ignore concatenations with variable strings

Default value:

Selected

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:

//noinspection StringConcatenationMissingWhitespace

More detailed instructions as well as other ways and options that you have can be found in the product documentation:

Inspection Details

By default bundled with:

IntelliJ IDEA 2025.2, Qodana for JVM 2025.2,

Last modified: 18 September 2025