CharSequenceRules

SUGGESTION

Simplification

Suppression

Disable all rules by adding -XepOpt:Refaster:NamePattern=^(?!CharSequenceRules\$).* as compiler argument.

Table of contents

CharSequenceIsEmpty

CharSequenceIsEmpty

SUGGESTION

Simplification

Suppression

Suppress false positives by adding the suppression annotation @SuppressWarnings("CharSequenceIsEmpty") to the enclosing element.

Disable this rule by adding -XepOpt:Refaster:NamePattern=^(?!CharSequenceRules\$CharSequenceIsEmpty).* as compiler argument.

Samples

Shows the difference in example code before and after the Refaster rule is applied.

 ImmutableSet<Boolean> testCharSequenceIsEmpty() {
   return ImmutableSet.of(
-      "foo".length() == 0,
-      "bar".length() <= 0,
-      "baz".length() < 1,
-      "qux".length() != 0,
-      "quux".length() > 0,
-      "corge".length() >= 1);
+      "foo".isEmpty(),
+      "bar".isEmpty(),
+      "baz".isEmpty(),
+      !"qux".isEmpty(),
+      !"quux".isEmpty(),
+      !"corge".isEmpty());
 }