safe delete unused static imports (IDEA-62051)

java/java-impl/src/com/intellij/refactoring/safeDelete/JavaSafeDeleteProcessor.java

@@ -393,7 +393,7 @@ public class JavaSafeDeleteProcessor implements SafeDeleteProcessorDelegate {
     for (PsiReference reference : references) {
       final PsiElement element = reference.getElement();
       if (!isInside(element, allElementsToDelete) && !isInside(element, overridingMethods)) {
-        usages.add(new SafeDeleteReferenceJavaDeleteUsageInfo(element, psiMethod, false));
+        usages.add(new SafeDeleteReferenceJavaDeleteUsageInfo(element, psiMethod, PsiTreeUtil.getParentOfType(element, PsiImportStaticStatement.class) != null));
       }
     }
 
@@ -612,7 +612,7 @@ public class JavaSafeDeleteProcessor implements SafeDeleteProcessorDelegate {
           else {
             TextRange range = reference.getRangeInElement();
             usages.add(new SafeDeleteReferenceJavaDeleteUsageInfo(reference.getElement(), psiField, range.getStartOffset(),
-                                                                    range.getEndOffset(), false, false));
+                                                                    range.getEndOffset(), false, PsiTreeUtil.getParentOfType(element, PsiImportStaticStatement.class) != null));
           }
         }
 

java/java-tests/testData/refactoring/safeDelete/safeDeleteStaticImports/after/A.java

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

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

@@ -0,0 +1,4 @@
+
+class B {
+
+}

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

@@ -0,0 +1,4 @@
+public class A {
+  static void b<caret>ar() {}
+}
+

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

@@ -0,0 +1,4 @@
+import static A.bar;
+class B {
+
+}

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

@@ -77,6 +77,11 @@ public class SafeDeleteTest extends MultiFileTestCase {
     doTest("UserFlags");
   }
 
+  public void testSafeDeleteStaticImports() throws Exception {
+    myDoCompare = false;
+    doTest("A");
+  }
+
   public void testRemoveOverridersInspiteOfUnsafeUsages() throws Exception {
     myDoCompare = false;
     try {