delete imports on safe delete of class (IDEA-139288)

java/java-impl/src/com/intellij/refactoring/safeDelete/usageInfo/SafeDeleteReferenceJavaDeleteUsageInfo.java

@@ -46,8 +46,11 @@ public class SafeDeleteReferenceJavaDeleteUsageInfo extends SafeDeleteReferenceS
       LOG.assertTrue(element != null);
       PsiElement importStatement = ImportSearcher.getImport(element, false);
       if (importStatement != null) {
-        if (element instanceof PsiImportStaticReferenceElement && 
-            ((PsiImportStaticReferenceElement)element).multiResolve(false).length < 2) {
+        if (element instanceof PsiImportStaticReferenceElement) {
+          if (((PsiImportStaticReferenceElement)element).multiResolve(false).length < 2) {
+            importStatement.delete();
+          }
+        } else {
           importStatement.delete();
         }
       }

java/java-tests/testData/refactoring/safeDelete/safeDeleteImports/after/B.java

@@ -0,0 +1,3 @@
+class B {
+
+}

java/java-tests/testData/refactoring/safeDelete/safeDeleteImports/before/A.java

@@ -0,0 +1,3 @@
+public class A {
+}
+

java/java-tests/testData/refactoring/safeDelete/safeDeleteImports/before/B.java

@@ -0,0 +1,4 @@
+import <caret>A;
+class B {
+
+}

java/java-tests/testSrc/com/intellij/refactoring/SafeDeleteTest.java

@@ -149,6 +149,10 @@ public class SafeDeleteTest extends MultiFileTestCase {
     doTest("A");
   }
 
+  public void testSafeDeleteImports() throws Exception {
+    doTest("B");
+  }
+
   public void testRemoveOverridersInspiteOfUnsafeUsages() throws Exception {
     try {
       BaseRefactoringProcessor.ConflictsInTestsException.setTestIgnore(true);