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Type:
Bug
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Status: Resolved
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Priority:
P3
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Resolution: Fixed
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Affects Version/s: 9
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Fix Version/s: 10
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Component/s: client-libs
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Labels:
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Subcomponent:
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Resolved In Build:b34
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CPU:x86
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OS:other
FULL PRODUCT VERSION :
java 9-ea
Java(TM) SE Runtime Environment (build 9-ea+163)
Java HotSpot(TM) 64-Bit Server VM (build 9-ea+163, mixed mode)
ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows [Version 10.0.14393]
A DESCRIPTION OF THE PROBLEM :
When using a non-integer resolution (e.g. 225%) for a HiDPI display, the Swing HTML rendering incorrectly calculates the width of SPAN elements which results in SPANs being incorrectly positioned and overlapping with each other.
I assume this is a bug in the implementation of http://openjdk.java.net/jeps/263 as it worked correctly in Java 8.
REGRESSION. Last worked in version 8u121
ADDITIONAL REGRESSION INFORMATION:
java version "1.8.0_121"
Java(TM) SE Runtime Environment (build 1.8.0_121-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.121-b13, mixed mode)
STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Run the attached code
EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
I expect the displayed text to show "A few words to get started before the bugoverlapping text"
ACTUAL -
The 'g' at the end of the word "bug" is rendered over the top of the 'o' in the start of "overlapping text"
REPRODUCIBILITY :
This bug can be reproduced always.
---------- BEGIN SOURCE ----------
package bugDemo;
import javax.swing.*;
import java.awt.*;
public class Java9BugTest {
public static void main(String[] args) {
JLabel label = new JLabel("<html><span>A few words to get started before the bug</span><span>overlapping text</span></html>");
JFrame frame = new JFrame("");
frame.getContentPane().add(label, BorderLayout.CENTER);
frame.setSize(500,500);
frame.setVisible(true);
}
}
---------- END SOURCE ----------
java 9-ea
Java(TM) SE Runtime Environment (build 9-ea+163)
Java HotSpot(TM) 64-Bit Server VM (build 9-ea+163, mixed mode)
ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows [Version 10.0.14393]
A DESCRIPTION OF THE PROBLEM :
When using a non-integer resolution (e.g. 225%) for a HiDPI display, the Swing HTML rendering incorrectly calculates the width of SPAN elements which results in SPANs being incorrectly positioned and overlapping with each other.
I assume this is a bug in the implementation of http://openjdk.java.net/jeps/263 as it worked correctly in Java 8.
REGRESSION. Last worked in version 8u121
ADDITIONAL REGRESSION INFORMATION:
java version "1.8.0_121"
Java(TM) SE Runtime Environment (build 1.8.0_121-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.121-b13, mixed mode)
STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Run the attached code
EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
I expect the displayed text to show "A few words to get started before the bugoverlapping text"
ACTUAL -
The 'g' at the end of the word "bug" is rendered over the top of the 'o' in the start of "overlapping text"
REPRODUCIBILITY :
This bug can be reproduced always.
---------- BEGIN SOURCE ----------
package bugDemo;
import javax.swing.*;
import java.awt.*;
public class Java9BugTest {
public static void main(String[] args) {
JLabel label = new JLabel("<html><span>A few words to get started before the bug</span><span>overlapping text</span></html>");
JFrame frame = new JFrame("");
frame.getContentPane().add(label, BorderLayout.CENTER);
frame.setSize(500,500);
frame.setVisible(true);
}
}
---------- END SOURCE ----------
- relates to
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- Open
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- Resolved
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