There is an issue that was opened to remove redundant calls of toString() on String objects. [1] I went deep on all JVM sources and I found all, 32 changes.
[1]https://bugs.openjdk.java.net/browse/JDK-8015470 diff -r e323c74edabd src/share/classes/com/sun/tools/example/debug/tty/Commands.java --- a/src/share/classes/com/sun/tools/example/debug/tty/Commands.java Wed Apr 23 11:35:40 2014 -0700 +++ b/src/share/classes/com/sun/tools/example/debug/tty/Commands.java Sat Apr 26 01:40:27 2014 -0300 @@ -1653,20 +1653,20 @@ String expr = t.nextToken(""); Value val = evaluate(expr); if (val == null) { - MessageOutput.println("expr is null", expr.toString()); + MessageOutput.println("expr is null", expr); } else if (dumpObject && (val instanceof ObjectReference) && !(val instanceof StringReference)) { ObjectReference obj = (ObjectReference)val; ReferenceType refType = obj.referenceType(); MessageOutput.println("expr is value", - new Object [] {expr.toString(), + new Object [] {expr, MessageOutput.format("grouping begin character")}); dump(obj, refType, refType); MessageOutput.println("grouping end character"); } else { String strVal = getStringValue(); if (strVal != null) { - MessageOutput.println("expr is value", new Object [] {expr.toString(), + MessageOutput.println("expr is value", new Object [] {expr, strVal}); } } diff -r e323c74edabd src/share/classes/java/lang/annotation/IncompleteAnnotationException.java --- a/src/share/classes/java/lang/annotation/IncompleteAnnotationException.java Wed Apr 23 11:35:40 2014 -0700 +++ b/src/share/classes/java/lang/annotation/IncompleteAnnotationException.java Sat Apr 26 01:40:27 2014 -0300 @@ -56,7 +56,7 @@ Class<? extends Annotation> annotationType, String elementName) { super(annotationType.getName() + " missing element " + - elementName.toString()); + elementName); this.annotationType = annotationType; this.elementName = elementName; diff -r e323c74edabd src/share/classes/java/text/DateFormatSymbols.java --- a/src/share/classes/java/text/DateFormatSymbols.java Wed Apr 23 11:35:40 2014 -0700 +++ b/src/share/classes/java/text/DateFormatSymbols.java Sat Apr 26 01:40:27 2014 -0300 @@ -593,8 +593,8 @@ * pattern characters. */ public void setLocalPatternChars(String newLocalPatternChars) { - // Call toString() to throw an NPE in case the argument is null - localPatternChars = newLocalPatternChars.toString(); + + localPatternChars = Objects.requireNonNull(newLocalPatternChars); cachedHashCode = 0; } diff -r e323c74edabd src/share/classes/javax/management/modelmbean/DescriptorSupport.java --- a/src/share/classes/javax/management/modelmbean/DescriptorSupport.java Wed Apr 23 11:35:40 2014 -0700 +++ b/src/share/classes/javax/management/modelmbean/DescriptorSupport.java Sat Apr 26 01:40:27 2014 -0300 @@ -665,7 +665,7 @@ "getFieldNames()", "Field is null"); } } else { - responseFields[i] = currElement.getKey().toString(); + responseFields[i] = currElement.getKey(); } } @@ -929,8 +929,8 @@ if (currElement != null) { if (currElement.getValue() != null) { // validate the field valued... - if (validateField((currElement.getKey()).toString(), - (currElement.getValue()).toString())) { + if (validateField((currElement.getKey()), + (currElement.getValue()))) { continue; } else { if (MODELMBEAN_LOGGER.isLoggable(Level.FINEST)) { diff -r e323c74edabd src/share/classes/javax/swing/text/html/FormView.java --- a/src/share/classes/javax/swing/text/html/FormView.java Wed Apr 23 11:35:40 2014 -0700 +++ b/src/share/classes/javax/swing/text/html/FormView.java Sat Apr 26 01:40:27 2014 -0300 @@ -478,7 +478,7 @@ base.getPort(), base.getFile()) : new URL(base, action); if (!isPostMethod) { - String query = data.toString(); + String query = data; actionURL = new URL(actionURL + "?" + query); } } catch (MalformedURLException e) { diff -r e323c74edabd src/share/classes/sun/java2d/loops/Blit.java --- a/src/share/classes/sun/java2d/loops/Blit.java Wed Apr 23 11:35:40 2014 -0700 +++ b/src/share/classes/sun/java2d/loops/Blit.java Sat Apr 26 01:40:27 2014 -0300 @@ -50,7 +50,7 @@ public class Blit extends GraphicsPrimitive { - public static final String methodSignature = "Blit(...)".toString(); + public static final String methodSignature = "Blit(...)"; public static final int primTypeID = makePrimTypeID(); diff -r e323c74edabd src/share/classes/sun/java2d/loops/BlitBg.java --- a/src/share/classes/sun/java2d/loops/BlitBg.java Wed Apr 23 11:35:40 2014 -0700 +++ b/src/share/classes/sun/java2d/loops/BlitBg.java Sat Apr 26 01:40:27 2014 -0300 @@ -54,7 +54,7 @@ */ public class BlitBg extends GraphicsPrimitive { - public static final String methodSignature = "BlitBg(...)".toString(); + public static final String methodSignature = "BlitBg(...)"; public static final int primTypeID = makePrimTypeID(); diff -r e323c74edabd src/share/classes/sun/java2d/loops/DrawGlyphList.java --- a/src/share/classes/sun/java2d/loops/DrawGlyphList.java Wed Apr 23 11:35:40 2014 -0700 +++ b/src/share/classes/sun/java2d/loops/DrawGlyphList.java Sat Apr 26 01:40:27 2014 -0300 @@ -39,7 +39,7 @@ */ public class DrawGlyphList extends GraphicsPrimitive { - public final static String methodSignature = "DrawGlyphList(...)".toString(); + public final static String methodSignature = "DrawGlyphList(...)"; public final static int primTypeID = makePrimTypeID(); diff -r e323c74edabd src/share/classes/sun/java2d/loops/DrawGlyphListAA.java --- a/src/share/classes/sun/java2d/loops/DrawGlyphListAA.java Wed Apr 23 11:35:40 2014 -0700 +++ b/src/share/classes/sun/java2d/loops/DrawGlyphListAA.java Sat Apr 26 01:40:27 2014 -0300 @@ -39,7 +39,7 @@ */ public class DrawGlyphListAA extends GraphicsPrimitive { - public final static String methodSignature = "DrawGlyphListAA(...)".toString(); + public final static String methodSignature = "DrawGlyphListAA(...)"; public final static int primTypeID = makePrimTypeID(); diff -r e323c74edabd src/share/classes/sun/java2d/loops/DrawGlyphListLCD.java --- a/src/share/classes/sun/java2d/loops/DrawGlyphListLCD.java Wed Apr 23 11:35:40 2014 -0700 +++ b/src/share/classes/sun/java2d/loops/DrawGlyphListLCD.java Sat Apr 26 01:40:27 2014 -0300 @@ -40,7 +40,7 @@ public class DrawGlyphListLCD extends GraphicsPrimitive { public final static String - methodSignature = "DrawGlyphListLCD(...)".toString(); + methodSignature = "DrawGlyphListLCD(...)"; public final static int primTypeID = makePrimTypeID(); diff -r e323c74edabd src/share/classes/sun/java2d/loops/DrawLine.java --- a/src/share/classes/sun/java2d/loops/DrawLine.java Wed Apr 23 11:35:40 2014 -0700 +++ b/src/share/classes/sun/java2d/loops/DrawLine.java Sat Apr 26 01:40:27 2014 -0300 @@ -44,7 +44,7 @@ */ public class DrawLine extends GraphicsPrimitive { - public final static String methodSignature = "DrawLine(...)".toString(); + public final static String methodSignature = "DrawLine(...)"; public final static int primTypeID = makePrimTypeID(); diff -r e323c74edabd src/share/classes/sun/java2d/loops/DrawParallelogram.java --- a/src/share/classes/sun/java2d/loops/DrawParallelogram.java Wed Apr 23 11:35:40 2014 -0700 +++ b/src/share/classes/sun/java2d/loops/DrawParallelogram.java Sat Apr 26 01:40:27 2014 -0300 @@ -43,7 +43,7 @@ public class DrawParallelogram extends GraphicsPrimitive { public final static String methodSignature = - "DrawParallelogram(...)".toString(); + "DrawParallelogram(...)"; public final static int primTypeID = makePrimTypeID(); diff -r e323c74edabd src/share/classes/sun/java2d/loops/DrawPath.java --- a/src/share/classes/sun/java2d/loops/DrawPath.java Wed Apr 23 11:35:40 2014 -0700 +++ b/src/share/classes/sun/java2d/loops/DrawPath.java Sat Apr 26 01:40:27 2014 -0300 @@ -39,7 +39,7 @@ public class DrawPath extends GraphicsPrimitive { public final static String methodSignature = - "DrawPath(...)".toString(); + "DrawPath(...)"; public final static int primTypeID = makePrimTypeID(); diff -r e323c74edabd src/share/classes/sun/java2d/loops/DrawPolygons.java --- a/src/share/classes/sun/java2d/loops/DrawPolygons.java Wed Apr 23 11:35:40 2014 -0700 +++ b/src/share/classes/sun/java2d/loops/DrawPolygons.java Sat Apr 26 01:40:27 2014 -0300 @@ -41,7 +41,7 @@ */ public class DrawPolygons extends GraphicsPrimitive { - public final static String methodSignature = "DrawPolygons(...)".toString(); + public final static String methodSignature = "DrawPolygons(...)"; public final static int primTypeID = makePrimTypeID(); diff -r e323c74edabd src/share/classes/sun/java2d/loops/DrawRect.java --- a/src/share/classes/sun/java2d/loops/DrawRect.java Wed Apr 23 11:35:40 2014 -0700 +++ b/src/share/classes/sun/java2d/loops/DrawRect.java Sat Apr 26 01:40:27 2014 -0300 @@ -44,7 +44,7 @@ */ public class DrawRect extends GraphicsPrimitive { - public final static String methodSignature = "DrawRect(...)".toString(); + public final static String methodSignature = "DrawRect(...)"; public final static int primTypeID = makePrimTypeID(); diff -r e323c74edabd src/share/classes/sun/java2d/loops/FillParallelogram.java --- a/src/share/classes/sun/java2d/loops/FillParallelogram.java Wed Apr 23 11:35:40 2014 -0700 +++ b/src/share/classes/sun/java2d/loops/FillParallelogram.java Sat Apr 26 01:40:27 2014 -0300 @@ -41,7 +41,7 @@ public class FillParallelogram extends GraphicsPrimitive { public final static String methodSignature = - "FillParallelogram(...)".toString(); + "FillParallelogram(...)"; public final static int primTypeID = makePrimTypeID(); diff -r e323c74edabd src/share/classes/sun/java2d/loops/FillPath.java --- a/src/share/classes/sun/java2d/loops/FillPath.java Wed Apr 23 11:35:40 2014 -0700 +++ b/src/share/classes/sun/java2d/loops/FillPath.java Sat Apr 26 01:40:27 2014 -0300 @@ -39,7 +39,7 @@ public class FillPath extends GraphicsPrimitive { public final static String methodSignature = - "FillPath(...)".toString(); + "FillPath(...)"; public final static int primTypeID = makePrimTypeID(); diff -r e323c74edabd src/share/classes/sun/java2d/loops/FillRect.java --- a/src/share/classes/sun/java2d/loops/FillRect.java Wed Apr 23 11:35:40 2014 -0700 +++ b/src/share/classes/sun/java2d/loops/FillRect.java Sat Apr 26 01:40:27 2014 -0300 @@ -44,7 +44,7 @@ */ public class FillRect extends GraphicsPrimitive { - public final static String methodSignature = "FillRect(...)".toString(); + public final static String methodSignature = "FillRect(...)"; public final static int primTypeID = makePrimTypeID(); diff -r e323c74edabd src/share/classes/sun/java2d/loops/FillSpans.java --- a/src/share/classes/sun/java2d/loops/FillSpans.java Wed Apr 23 11:35:40 2014 -0700 +++ b/src/share/classes/sun/java2d/loops/FillSpans.java Sat Apr 26 01:40:27 2014 -0300 @@ -45,7 +45,7 @@ */ public class FillSpans extends GraphicsPrimitive { - public final static String methodSignature = "FillSpans(...)".toString(); + public final static String methodSignature = "FillSpans(...)"; public final static int primTypeID = makePrimTypeID(); diff -r e323c74edabd src/share/classes/sun/java2d/loops/MaskBlit.java --- a/src/share/classes/sun/java2d/loops/MaskBlit.java Wed Apr 23 11:35:40 2014 -0700 +++ b/src/share/classes/sun/java2d/loops/MaskBlit.java Sat Apr 26 01:40:27 2014 -0300 @@ -48,7 +48,7 @@ public class MaskBlit extends GraphicsPrimitive { - public static final String methodSignature = "MaskBlit(...)".toString(); + public static final String methodSignature = "MaskBlit(...)"; public static final int primTypeID = makePrimTypeID(); diff -r e323c74edabd src/share/classes/sun/java2d/loops/MaskFill.java --- a/src/share/classes/sun/java2d/loops/MaskFill.java Wed Apr 23 11:35:40 2014 -0700 +++ b/src/share/classes/sun/java2d/loops/MaskFill.java Sat Apr 26 01:40:27 2014 -0300 @@ -50,11 +50,11 @@ */ public class MaskFill extends GraphicsPrimitive { - public static final String methodSignature = "MaskFill(...)".toString(); + public static final String methodSignature = "MaskFill(...)"; public static final String fillPgramSignature = - "FillAAPgram(...)".toString(); + "FillAAPgram(...)"; public static final String drawPgramSignature = - "DrawAAPgram(...)".toString(); + "DrawAAPgram(...)"; public static final int primTypeID = makePrimTypeID(); diff -r e323c74edabd src/share/classes/sun/java2d/loops/ScaledBlit.java --- a/src/share/classes/sun/java2d/loops/ScaledBlit.java Wed Apr 23 11:35:40 2014 -0700 +++ b/src/share/classes/sun/java2d/loops/ScaledBlit.java Sat Apr 26 01:40:27 2014 -0300 @@ -45,7 +45,7 @@ public class ScaledBlit extends GraphicsPrimitive { - public static final String methodSignature = "ScaledBlit(...)".toString(); + public static final String methodSignature = "ScaledBlit(...)"; public static final int primTypeID = makePrimTypeID(); diff -r e323c74edabd src/share/classes/sun/java2d/loops/TransformBlit.java --- a/src/share/classes/sun/java2d/loops/TransformBlit.java Wed Apr 23 11:35:40 2014 -0700 +++ b/src/share/classes/sun/java2d/loops/TransformBlit.java Sat Apr 26 01:40:27 2014 -0300 @@ -47,7 +47,7 @@ public class TransformBlit extends GraphicsPrimitive { public static final String methodSignature = - "TransformBlit(...)".toString(); + "TransformBlit(...)"; public static final int primTypeID = makePrimTypeID(); diff -r e323c74edabd src/share/classes/sun/java2d/loops/TransformHelper.java --- a/src/share/classes/sun/java2d/loops/TransformHelper.java Wed Apr 23 11:35:40 2014 -0700 +++ b/src/share/classes/sun/java2d/loops/TransformHelper.java Sat Apr 26 01:40:27 2014 -0300 @@ -46,7 +46,7 @@ public class TransformHelper extends GraphicsPrimitive { public static final String methodSignature = - "TransformHelper(...)".toString(); + "TransformHelper(...)"; public static final int primTypeID = makePrimTypeID(); diff -r e323c74edabd src/share/classes/sun/misc/ExtensionInfo.java --- a/src/share/classes/sun/misc/ExtensionInfo.java Wed Apr 23 11:35:40 2014 -0700 +++ b/src/share/classes/sun/misc/ExtensionInfo.java Sat Apr 26 01:40:27 2014 -0300 @@ -260,11 +260,11 @@ // Convert token into meaning number for comparision if (stk.hasMoreTokens()) - n = convertToken(stk.nextToken().toString()); + n = convertToken(stk.nextToken()); // Convert token into meaning number for comparision if (ttk.hasMoreTokens()) - m = convertToken(ttk.nextToken().toString()); + m = convertToken(ttk.nextToken()); if (n > m) return 1; diff -r e323c74edabd src/share/classes/sun/tools/jconsole/inspector/Utils.java --- a/src/share/classes/sun/tools/jconsole/inspector/Utils.java Wed Apr 23 11:35:40 2014 -0700 +++ b/src/share/classes/sun/tools/jconsole/inspector/Utils.java Sat Apr 26 01:40:27 2014 -0300 @@ -378,7 +378,7 @@ if (userInput instanceof XObject) { result[i] = ((XObject) userInput).getObject(); } else { - result[i] = createObjectFromString(params[i].toString(), + result[i] = createObjectFromString(params[i], (String) userInput); } } -- Cheers!. Otávio Gonçalves de Santana blog: http://otaviosantana.blogspot.com.br/ twitter: http://twitter.com/otaviojava site: *http://about.me/otaviojava <http://about.me/otaviojava>* 55 (11) 98255-3513
