FULL PRODUCT VERSION :
java version "1.8.0_72"
Java(TM) SE Runtime Environment (build 1.8.0_72-b15)
Java HotSpot(TM) Client VM (build 25.72-b15, mixed mode, sharing)

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows [Version 6.1.7601]

A DESCRIPTION OF THE PROBLEM :
The Swing CSS parser in Java 8 fails to parse CSS colors values properly if there are any space characters inside the rgb(...) parentheses.

REGRESSION. Last worked in version 6u43

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
border-top-color: rgb(255, 0, 0)
border-right-color: rgb(255, 0, 0)
border-bottom-color: rgb(255, 0, 0)
border-left-color: rgb(255, 0, 0)

The output with jdk1.6.0_37 is:
border-color: rgb(255, 0, 0)
ACTUAL -
border-top-color: rgb(255,

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import java.util.*;
import javax.swing.text.*;
import javax.swing.text.html.*;

public class StyleSheetTest {
public static void main(String[] args) {
final StyleSheet styleSheet = new StyleSheet();
// "rgb(255,0,0)" works in Java 8!
final String input = "rgb(255, 0, 0)";
final AttributeSet attributeSet = styleSheet.getDeclaration("border-color:" + input + ";");
for (Enumeration<?> e = attributeSet.getAttributeNames(); e.hasMoreElements(); ) {
final Object key = e.nextElement();
System.out.println(key + ": " + attributeSet.getAttribute(key));
}

}
}
---------- END SOURCE ----------