diff -r 79dc4b992c0a -r 66245d9d84db src/share/classes/com/sun/tools/javap/BasicWriter.java
--- a/src/share/classes/com/sun/tools/javap/BasicWriter.java	Thu Feb 06 21:11:27 2014 +0000
+++ b/src/share/classes/com/sun/tools/javap/BasicWriter.java	Tue Feb 11 19:05:50 2014 +0400
@@ -151,12 +151,22 @@
             for (int i = 0; i < s.length(); i++) {
                 char c = s.charAt(i);
                 switch (c) {
+                    case ' ':
+                        pendingSpaces++;
+                        break;
+
                     case '\n':
                         println();
                         break;
+
                     default:
                         if (buffer.length() == 0)
                             indent();
+                        if (pendingSpaces > 0) {
+                            for (int sp = 0; sp < pendingSpaces; sp++)
+                                buffer.append(' ');
+                            pendingSpaces = 0;
+                        }
                         buffer.append(c);
                 }
             }
@@ -164,6 +174,8 @@
         }
 
         protected void println() {
+            // ignore/discard pending spaces
+            pendingSpaces = 0;
             out.println(buffer);
             buffer.setLength(0);
         }
@@ -173,26 +185,21 @@
         }
 
         protected void tab() {
-            if (buffer.length() == 0)
-                indent();
-            space(indentCount * indentWidth + tabColumn - buffer.length());
+            int col = indentCount * indentWidth + tabColumn;
+            pendingSpaces += (col <= buffer.length() ? 1 : col - buffer.length());
         }
 
         private void indent() {
-            space(indentCount * indentWidth);
+            pendingSpaces += (indentCount * indentWidth);
         }
 
-        private void space(int n) {
-            for (int i = 0; i < n; i++)
-                buffer.append(' ');
-        }
-
-        private PrintWriter out;
-        private StringBuilder buffer;
+        private final PrintWriter out;
+        private final StringBuilder buffer;
         private int indentCount;
-        private int indentWidth;
-        private int tabColumn;
+        private final int indentWidth;
+        private final int tabColumn;
         private boolean pendingNewline;
+        private int pendingSpaces;
     }
 }