From 6a08e626c6a92a16e0fcc2004f0bfc73029e2241 Mon Sep 17 00:00:00 2001
From: "Egor.Ushakov" <egor.ushakov@jetbrains.com>
Date: Wed, 29 Oct 2014 16:07:51 +0300
Subject: [PATCH] code cleanup - use singletonList for single element
 collections

---
 .../intellij/debugger/engine/JavaExecutionStack.java  |  3 +--
 .../debugger/settings/ImageObjectRenderer.java        |  4 ++--
 .../debugger/ui/impl/watch/CompilingEvaluator.java    | 11 ++++-------
 3 files changed, 7 insertions(+), 11 deletions(-)

diff --git a/java/debugger/impl/src/com/intellij/debugger/engine/JavaExecutionStack.java b/java/debugger/impl/src/com/intellij/debugger/engine/JavaExecutionStack.java
index 61bd5d4df803..c19b0e8ec027 100644
--- a/java/debugger/impl/src/com/intellij/debugger/engine/JavaExecutionStack.java
+++ b/java/debugger/impl/src/com/intellij/debugger/engine/JavaExecutionStack.java
@@ -32,7 +32,6 @@ import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
 import javax.swing.*;
-import java.util.Arrays;
 import java.util.Collections;
 import java.util.Iterator;
 
@@ -176,7 +175,7 @@ public class JavaExecutionStack extends XExecutionStack {
         }
         if (first || DebuggerSettings.getInstance().SHOW_LIBRARY_STACKFRAMES || (!frame.getDescriptor().isSynthetic() && !frame.getDescriptor().isInLibraryContent())) {
           if (++myAdded > mySkip) {
-            myContainer.addStackFrames(Arrays.asList(frame), false);
+            myContainer.addStackFrames(Collections.singletonList(frame), false);
           }
         }
         myDebugProcess.getManagerThread().schedule(
diff --git a/java/debugger/impl/src/com/intellij/debugger/settings/ImageObjectRenderer.java b/java/debugger/impl/src/com/intellij/debugger/settings/ImageObjectRenderer.java
index 8f48ae93b995..fa332a347794 100644
--- a/java/debugger/impl/src/com/intellij/debugger/settings/ImageObjectRenderer.java
+++ b/java/debugger/impl/src/com/intellij/debugger/settings/ImageObjectRenderer.java
@@ -32,7 +32,7 @@ import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
 import javax.swing.*;
-import java.util.Arrays;
+import java.util.Collections;
 import java.util.List;
 
 /**
@@ -88,7 +88,7 @@ class ImageObjectRenderer extends CompoundReferenceRenderer implements FullValue
     if (cls != null) {
       List<Method> methods = cls.methodsByName(methodName);
       if (!methods.isEmpty()) {
-        return process.invokeMethod(evaluationContext, cls, methods.get(0), Arrays.asList(obj));
+        return process.invokeMethod(evaluationContext, cls, methods.get(0), Collections.singletonList(obj));
       }
     }
     return null;
diff --git a/java/debugger/impl/src/com/intellij/debugger/ui/impl/watch/CompilingEvaluator.java b/java/debugger/impl/src/com/intellij/debugger/ui/impl/watch/CompilingEvaluator.java
index 90df15380b3f..8900db300cf1 100644
--- a/java/debugger/impl/src/com/intellij/debugger/ui/impl/watch/CompilingEvaluator.java
+++ b/java/debugger/impl/src/com/intellij/debugger/ui/impl/watch/CompilingEvaluator.java
@@ -50,10 +50,7 @@ import org.jetbrains.org.objectweb.asm.Opcodes;
 import javax.tools.*;
 import java.io.ByteArrayOutputStream;
 import java.net.URI;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Collection;
-import java.util.List;
+import java.util.*;
 
 /**
 * @author egor
@@ -250,9 +247,9 @@ public class CompilingEvaluator implements ExpressionEvaluator {
     StringReference url = proxy.mirrorOf("file:a");
     keep(url, context);
     ObjectReference reference = classType.newInstance(threadReference, classType.concreteMethodByName("<init>", "(Ljava/lang/String;)V"),
-                                                      Arrays.asList(url), ClassType.INVOKE_SINGLE_THREADED);
+                                                      Collections.singletonList(url), ClassType.INVOKE_SINGLE_THREADED);
     keep(reference, context);
-    arrayRef.setValues(Arrays.asList(reference));
+    arrayRef.setValues(Collections.singletonList(reference));
     return arrayRef;
   }
 
@@ -290,7 +287,7 @@ public class CompilingEvaluator implements ExpressionEvaluator {
                             diagnostic,
                             options,
                             null,
-                            Arrays.asList(new SourceFileObject(getMainClassName(), JavaFileObject.Kind.SOURCE, getClassCode()))
+                            Collections.singletonList(new SourceFileObject(getMainClassName(), JavaFileObject.Kind.SOURCE, getClassCode()))
       ).call()) {
         StringBuilder res = new StringBuilder("Compilation failed:\n");
         for (Diagnostic<? extends JavaFileObject> d : diagnostic.getDiagnostics()) {