String concatenation as argument to 'StringBuilder.append()' call
Reports String
concatenation used as the argument to StringBuffer.append()
, StringBuilder.append()
or Appendable.append()
.
Such calls may profitably be turned into chained append calls on the existing StringBuffer/Builder/Appendable
saving the cost of an extra StringBuffer/Builder
allocation. This inspection ignores compile-time evaluated String
concatenations, in which case the conversion would only worsen performance.
Example:
void bar(StringBuilder builder, String name) {
builder.append("Hello," + name); //warning
builder.append("Hello," + "world"); //no warning
}
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.
StringConcatenationInsideStringBufferAppend- 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.
Availability
- By default bundled with
- Can be installed with plugin
Java, 241.18072
Last modified: 18 June 2024