Forbid no/abundant whitespace before array initializer

Forbid these new int[]{... new int[] {....
airlift · Jan 10, 2024 · b48f6d0 · b48f6d0
1 parent c53dfe2
commit b48f6d0
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diff --git a/CHANGES.md b/CHANGES.md
@@ -1,5 +1,7 @@
 Airbase 149
 * Remove bval dependency
+* Checkstyle updates:
+  - Require exactly one space between array type and array initializer.
 * Plugin updates:
   - git-commit-id-maven-plugin 7.0.0 (from 6.0.0)
   - spotbugs-maven-plugins 4.8.1.0 (from 4.7.3.6)

diff --git a/airbase-policy/src/main/resources/checkstyle/airbase-checks.xml b/airbase-policy/src/main/resources/checkstyle/airbase-checks.xml
@@ -256,6 +256,14 @@
             <property name="ignoreComments" value="true" />
         </module>
 
+        <module name="RegexpSinglelineJava">
+            <!-- Forbid "new Type[]{",  IntelliJ would reformat adding a space -->
+            <!-- Forbid "new Type[]  {",  IntelliJ would reformat removing a space -->
+            <property name="format" value="new\s++\w++(&lt;\?&gt;)?(\[\])++(?! )\s*+\{" />
+            <property name="message" value="Incorrect whitespace before array initializer" />
+            <property name="ignoreComments" value="true" />
+        </module>
+
         <!-- javadoc -->
         <module name="RequireEmptyLineBeforeBlockTagGroup" />
         <module name="NonEmptyAtclauseDescription" />