PreconditionsRules

SUGGESTION

Simplification

View source code on GitHub

Suppression

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

CheckArgument

SUGGESTION

Simplification

Suppression

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

Disable this rule by adding -XepOpt:Refaster:NamePattern=^(?!(PreconditionsRules\.CheckArgument)) as compiler argument.

Samples

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

 void testCheckArgument() {
-    if ("foo".isEmpty()) {
-      throw new IllegalArgumentException();
-    }
+    checkArgument(!"foo".isEmpty());
   }

CheckArgumentWithMessage

SUGGESTION

Simplification

Suppression

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

Disable this rule by adding -XepOpt:Refaster:NamePattern=^(?!(PreconditionsRules\.CheckArgumentWithMessage)) as compiler argument.

Samples

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

 void testCheckArgumentWithMessage() {
-    if ("foo".isEmpty()) {
-      throw new IllegalArgumentException("The string is empty");
-    }
+    checkArgument(!"foo".isEmpty(), "The string is empty");
   }

CheckElementIndexWithMessage

SUGGESTION

Simplification

Suppression

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

Disable this rule by adding -XepOpt:Refaster:NamePattern=^(?!(PreconditionsRules\.CheckElementIndexWithMessage)) as compiler argument.

Samples

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

 void testCheckElementIndexWithMessage() {
-    if (1 < 0 || 1 >= 2) {
-      throw new IndexOutOfBoundsException("My index");
-    }
+    checkElementIndex(1, 2, "My index");
   }

CheckNotNull

SUGGESTION

Simplification

Suppression

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

Disable this rule by adding -XepOpt:Refaster:NamePattern=^(?!(PreconditionsRules\.CheckNotNull)) as compiler argument.

Samples

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

 void testCheckNotNull() {
-    if ("foo" == null) {
-      throw new NullPointerException();
-    }
+    checkNotNull("foo");
   }

CheckNotNullWithMessage

SUGGESTION

Simplification

Suppression

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

Disable this rule by adding -XepOpt:Refaster:NamePattern=^(?!(PreconditionsRules\.CheckNotNullWithMessage)) as compiler argument.

Samples

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

 void testCheckNotNullWithMessage() {
-    if ("foo" == null) {
-      throw new NullPointerException("The string is null");
-    }
+    checkNotNull("foo", "The string is null");
   }

CheckPositionIndex

SUGGESTION

Simplification

Suppression

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

Disable this rule by adding -XepOpt:Refaster:NamePattern=^(?!(PreconditionsRules\.CheckPositionIndex)) as compiler argument.

Samples

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

 void testCheckPositionIndex() {
-    if (1 < 0 || 1 > 2) {
-      throw new IndexOutOfBoundsException();
-    }
+    checkPositionIndex(1, 2);
   }

CheckPositionIndexWithMessage

SUGGESTION

Simplification

Suppression

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

Disable this rule by adding -XepOpt:Refaster:NamePattern=^(?!(PreconditionsRules\.CheckPositionIndexWithMessage)) as compiler argument.

Samples

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

 void testCheckPositionIndexWithMessage() {
-    if (1 < 0 || 1 > 2) {
-      throw new IndexOutOfBoundsException("My position");
-    }
+    checkPositionIndex(1, 2, "My position");
   }

CheckState

SUGGESTION

Simplification

Suppression

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

Disable this rule by adding -XepOpt:Refaster:NamePattern=^(?!(PreconditionsRules\.CheckState)) as compiler argument.

Samples

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

 void testCheckState() {
-    if ("foo".isEmpty()) {
-      throw new IllegalStateException();
-    }
+    checkState(!"foo".isEmpty());
   }

CheckStateWithMessage

SUGGESTION

Simplification

Suppression

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

Disable this rule by adding -XepOpt:Refaster:NamePattern=^(?!(PreconditionsRules\.CheckStateWithMessage)) as compiler argument.

Samples

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

 void testCheckStateWithMessage() {
-    if ("foo".isEmpty()) {
-      throw new IllegalStateException("The string is empty");
-    }
+    checkState(!"foo".isEmpty(), "The string is empty");
   }