Strange error just editing code in 0019

Hi, I was working on the following Skecth:

#include <DCMotor.h>

void setup()
{
motor0.setClockwise(true);
motor0.setClockwise(false);

motor0.setSpeed(50.0);
motor1.setSpeed(50.0);

delay(5000);

motor0.brake();
motor1.setSpeed(0);

motor0.setSpeed(-90.0);
motor1.setSpeed(-45.0);

delay(5000);

motor0.setSpeed(0);
motor1.setSpeed(0);
}

void loop()
{
}

And just open it and I get the following errors:

Error repainting line range {0,19}:
java.lang.ArrayIndexOutOfBoundsException: 55
at processing.app.syntax.SyntaxUtilities.paintSyntaxLine(Unknown Source)
at processing.app.syntax.TextAreaPainter.paintSyntaxLine(Unknown Source)
at processing.app.syntax.TextAreaPainter.paintLine(Unknown Source)
at processing.app.syntax.TextAreaPainter.paint(Unknown Source)
at javax.swing.JComponent.paintChildren(JComponent.java:864)
at javax.swing.JComponent.paint(JComponent.java:1038)
at javax.swing.JComponent.paintChildren(JComponent.java:864)
at javax.swing.JComponent.paint(JComponent.java:1038)
at javax.swing.JComponent.paintChildren(JComponent.java:864)
at javax.swing.JSplitPane.paintChildren(JSplitPane.java:1030)
at javax.swing.JComponent.paint(JComponent.java:1038)
....
And continues.

This does not happend when I open the same pde in the 0018 IDE.

Regards,
Julián
http://robotgroup.com.ar

Well, I found the cause, but I still think it's a bug (the editor only showed text until the bad keyword, and then all that streaming with the long error text started).

The problem was that there was a bad formated keywords.txt file in another library. I fixed it, and the problem disapeared. In my 0018 it did not happen because that library was not installed.