FULL PRODUCT VERSION :
java version "9-ea"
Java(TM) SE Runtime Environment (build 9-ea+151)
Java HotSpot(TM) 64-Bit Server VM (build 9-ea+151, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
macOS Sierra 10.12.2

A DESCRIPTION OF THE PROBLEM :
For certain text/font combinations, exception occurs in text layout code.

REGRESSION. Last worked in version 8u112

ADDITIONAL REGRESSION INFORMATION:
java version "1.8.0_112"
Java(TM) SE Runtime Environment (build 1.8.0_112-b16)
Java HotSpot(TM) 64-Bit Server VM (build 25.112-b16, mixed mode)


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Run the sample program given below.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Program finishes normally.
ACTUAL -
Exception is thrown (see below).


ERROR MESSAGES/STACK TRACES THAT OCCUR :
Exception in thread "main" java.lang.NullPointerException
at java.desktop/sun.font.ExtendedTextSourceLabel.createCharinfo(ExtendedTextSourceLabel.java:701)
at java.desktop/sun.font.ExtendedTextSourceLabel.getCharinfo(ExtendedTextSourceLabel.java:548)
at java.desktop/sun.font.ExtendedTextSourceLabel.getCharX(ExtendedTextSourceLabel.java:357)
at java.desktop/java.awt.font.TextLine$3.computeFunction(TextLine.java:517)
at java.desktop/java.awt.font.TextLine.applyFunctionAtIndex(TextLine.java:653)
at java.desktop/java.awt.font.TextLine.getCharXPosition(TextLine.java:670)
at java.desktop/java.awt.font.TextLine.getCharLinePosition(TextLine.java:680)
at java.desktop/java.awt.font.TextLayout.getCaretInfo(TextLayout.java:1139)
at java.desktop/java.awt.font.TextLayout.getCaretInfoTestInternal(TextLayout.java:1235)
at java.desktop/java.awt.font.TextLayout.getCaretInfo(TextLayout.java:1218)
at java.desktop/java.awt.font.TextLayout.getCaretPath(TextLayout.java:1629)
at java.desktop/java.awt.font.TextLayout.getCaretShapes(TextLayout.java:1891)
at java.desktop/java.awt.font.TextLayout.getCaretShapes(TextLayout.java:1945)
at FontLayoutBugTest.main(FontLayoutBugTest.java:10)

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import java.awt.*;
import java.awt.font.*;

public class FontLayoutBugTest {
    public static void main(String[] args) {
        Font font = new Font("Tahoma", Font.PLAIN, 12);
        String text = "\ude00";
        FontRenderContext frc = new FontRenderContext(null, false, false);
        TextLayout layout = new TextLayout(text, font, frc);
        layout.getCaretShapes(0);
    }
}

---------- END SOURCE ----------