# Use Predefined Standard Charset
# Properties
| Property | Value |
|---|---|
| Rule ID | UsePredefinedStandardCharset |
| First seen in jSparrow version | 3.21.0 |
| Minimum Java version | 1.7 |
| Remediation cost | 2 min |
| Links |
# Description
This rule replaces invocations of Charset.forName(String) (opens new window) by constants defined in StandardCharsets (opens new window).
# Benefits
Avoids creating new objects that are already predefined.
# Code Changes
# Using Charset forName with "UTF-8"
Pre
Charset c = Charset.forName("UTF-8");
Post
Charset c = StandardCharsets.UTF_8;
# Using Charset forName with "US-ASCII"
Pre
Charset c = Charset.forName("US-ASCII");
Post
Charset c = StandardCharsets.US_ASCII;
# Using Charset forName with "ISO-8859-1"
Pre
Charset c1 = Charset.forName("ISO-8859-1");
Post
Charset c1 = StandardCharsets.ISO_8859_1;
# Using Charset forName with "UTF-16"
Pre
Charset c3 = Charset.forName("UTF-16");
Post
Charset c3 = StandardCharsets.UTF_16;
# Using Charset forName with "UTF-16BE"
Pre
Charset c4 = Charset.forName("UTF-16BE");
Post
Charset c4 = StandardCharsets.UTF_16BE;
# Using Charset forName with "UTF-16LE"
Pre
Charset c5 = Charset.forName("UTF-16LE");
Post
Charset c5 = StandardCharsets.UTF_16LE;
Automatic Application of This Rule
The automatic application of this rule is supported in the following jSparrow version:
# Tags
Tags
1
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