diff --git a/json/tests/test/com/intellij/json/JsonEditingTest.java b/json/tests/test/com/intellij/json/JsonEditingTest.java
index 082b8371eadd..d561401b1ad8 100644
--- a/json/tests/test/com/intellij/json/JsonEditingTest.java
+++ b/json/tests/test/com/intellij/json/JsonEditingTest.java
@@ -16,13 +16,10 @@ public class JsonEditingTest extends JsonTestCase {
     final String testName = "editing/" + getTestName(false);
     myFixture.configureByFile(testName + ".json");
     final int offset = myFixture.getEditor().getCaretModel().getOffset();
-    WriteCommandAction.runWriteCommandAction(null, new Computable<PsiFile>() {
-      @Override
-      public PsiFile compute() {
-        myFixture.getEditor().getCaretModel().moveToOffset(offset);
-        myFixture.type(characters);
-        return myFixture.getFile();
-      }
+    WriteCommandAction.runWriteCommandAction(null, (Computable<PsiFile>)() -> {
+      myFixture.getEditor().getCaretModel().moveToOffset(offset);
+      myFixture.type(characters);
+      return myFixture.getFile();
     });
     myFixture.checkResultByFile(testName + ".after.json");
   }
diff --git a/json/tests/test/com/intellij/json/JsonLiveTemplateTest.java b/json/tests/test/com/intellij/json/JsonLiveTemplateTest.java
index 87e02eabcf9f..c4b0822d8131 100644
--- a/json/tests/test/com/intellij/json/JsonLiveTemplateTest.java
+++ b/json/tests/test/com/intellij/json/JsonLiveTemplateTest.java
@@ -59,14 +59,11 @@ public class JsonLiveTemplateTest extends JsonTestCase {
     createJsonTemplate("foo", "foo", templateContent);
     myFixture.configureByText(JsonFileType.INSTANCE, "foo<caret>");
     final Editor editor = myFixture.getEditor();
-    WriteCommandAction.runWriteCommandAction(null, new Runnable() {
-      @Override
-      public void run() {
-        new ListTemplatesAction().actionPerformedImpl(getProject(), editor);
-        final LookupImpl lookup = (LookupImpl)LookupManager.getActiveLookup(editor);
-        assertNotNull(lookup);
-        lookup.finishLookup(Lookup.NORMAL_SELECT_CHAR);
-      }
+    WriteCommandAction.runWriteCommandAction(null, () -> {
+      new ListTemplatesAction().actionPerformedImpl(getProject(), editor);
+      final LookupImpl lookup = (LookupImpl)LookupManager.getActiveLookup(editor);
+      assertNotNull(lookup);
+      lookup.finishLookup(Lookup.NORMAL_SELECT_CHAR);
     });
     myFixture.checkResult(templateContent.replaceAll("\\$.*?\\$", ""));
   }
diff --git a/json/tests/test/com/intellij/json/JsonTestCase.java b/json/tests/test/com/intellij/json/JsonTestCase.java
index 4ea65effa00a..c91e1598a9ad 100644
--- a/json/tests/test/com/intellij/json/JsonTestCase.java
+++ b/json/tests/test/com/intellij/json/JsonTestCase.java
@@ -19,8 +19,6 @@ public abstract class JsonTestCase extends LightCodeInsightFixtureTestCase {
     Logger.setFactory(TestLoggerFactory.class);
   }
 
-  protected static final Logger LOG = Logger.getInstance(JsonTestCase.class);
-
   @Override
   public void setUp() throws Exception {
     PlatformTestCase.autodetectPlatformPrefix();