error if static on-demand import references non-class (IDEA-160943)

java/java-analysis-impl/src/com/intellij/codeInsight/daemon/impl/analysis/HighlightVisitorImpl.java

@@ -596,6 +596,7 @@ public class HighlightVisitorImpl extends JavaElementVisitor implements Highligh
   @Override
   public void visitImportStaticStatement(PsiImportStaticStatement statement) {
     myHolder.add(checkFeature(statement, Feature.STATIC_IMPORTS));
+    if (!myHolder.hasErrorResults()) myHolder.add(ImportsHighlightUtil.checkStaticOnDemandImportResolvesToClass(statement));
   }
 
   @Override

java/java-analysis-impl/src/com/intellij/codeInsight/daemon/impl/analysis/ImportsHighlightUtil.java

@@ -0,0 +1,40 @@
+/*
+ * Copyright 2000-2016 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.intellij.codeInsight.daemon.impl.analysis;
+
+import com.intellij.codeInsight.daemon.impl.HighlightInfo;
+import com.intellij.codeInsight.daemon.impl.HighlightInfoType;
+import com.intellij.psi.PsiElement;
+import com.intellij.psi.PsiImportStaticStatement;
+import com.intellij.psi.PsiJavaCodeReferenceElement;
+import com.intellij.util.ObjectUtils;
+
+public class ImportsHighlightUtil {
+  static HighlightInfo checkStaticOnDemandImportResolvesToClass(PsiImportStaticStatement statement) {
+    if (statement.isOnDemand() && statement.resolveTargetClass() == null) {
+      PsiJavaCodeReferenceElement ref = statement.getImportReference();
+      if (ref != null) {
+        PsiElement resolve = ref.resolve();
+        if (resolve != null) {
+          return HighlightInfo.newHighlightInfo(HighlightInfoType.ERROR)
+            .range(ObjectUtils.notNull(ref.getReferenceNameElement(), ref))
+            .descriptionAndTooltip("Class " + ref.getCanonicalText() + " not found").create();
+        }
+      }
+    }
+    return null;
+  }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/advHighlighting6/StaticOnDemandImportResolvesToClass.java

@@ -0,0 +1,3 @@
+import static java.<error descr="Class java.io not found">io</error>.*;
+
+class Main { }

java/java-tests/testSrc/com/intellij/codeInsight/daemon/LightAdvHighlightingJdk6Test.java

@@ -90,4 +90,8 @@ public class LightAdvHighlightingJdk6Test extends LightDaemonAnalyzerTestCase {
   public void testSpeculateOnUnhandledExceptionsOverResolvedConstructorOnly() throws Exception {
     doTest(false, false);
   }
+
+  public void testStaticOnDemandImportResolvesToClass() throws Exception {
+    doTest(false, false);
+  }
 }