StringBuilder constructor call with 'char' argument

Reports calls to StringBuffer and StringBuilder constructors with char as the argument. In this case, char is silently cast to an integer and interpreted as the initial capacity of the buffer.

Example:

new StringBuilder('(').append("1").append(')');

After the quick-fix is applied:

new StringBuilder("(").append("1").append(')');

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.

NewStringBufferWithCharArgument

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

Inspection Details
By default bundled with:	IntelliJ IDEA 2024.2, Qodana for JVM 2024.2,
Can be installed with plugin:	Java, 242.22892

Last modified: 11 September 2024