我有一个自定义 Icon，它使用 TexturePaint 作为绘画并在 Graphics2D 对象上调用 fillPolygon。

此代码在 JDK6 和 JDK7 上运行良好，但在 JDK8 和 64 位 Linux 下失败(在 64 位 Linux 上尝试了最新的 JDK1.8)。在 Windows 上，这在 JDK8 上运行良好。

用于重现问题的 JDK 的 java -version 命令的输出。

java version "1.8.0_25"
Java(TM) SE Runtime Environment (build 1.8.0_25-b17)
Java HotSpot(TM) 64-Bit Server VM (build 25.25-b02, mixed mode)

重现问题的代码:

import java.awt.*;
import java.awt.image.*;
import javax.swing.*;

public class TexturePaintIconTest {

  private static class CustomIcon implements Icon{

    private static final int[] sXArray = new int[]{2, 5, 7, 12, 12, 4, 1, 1, 2};
    private static final int[] sYArray = new int[]{4, 4, 2, 2, 11, 11, 8, 5, 4};
    private static final int sNumberOfPoints = 9;

    @Override
    public void paintIcon(Component c, Graphics g, int x, int y) {
      g.translate(x,y);

      Graphics2D g2d = (Graphics2D) g;
      Color fillColor = new Color( 140, 25, 25, 35);
      g2d.setPaint(createPatternPaint(fillColor));
      g2d.fillPolygon(sXArray, sYArray, sNumberOfPoints);

      g.translate(-x, -y);
    }

    private Paint createPatternPaint(Color color ){
      int[] colors = new int[]{color.getRGB(), 0};
      IndexColorModel colorModel = new IndexColorModel(1, 2, colors, 0, true, -1, DataBuffer.TYPE_BYTE);
      BufferedImage image = new BufferedImage(2, 2, BufferedImage.TYPE_BYTE_INDEXED, colorModel);
      DataBufferByte dataBuffer = (DataBufferByte) image.getRaster().getDataBuffer();
      byte[] data = dataBuffer.getData();
      data[0] = 0;
      data[1] = 1;
      data[2] = 1;
      data[3] = 0;
      return new TexturePaint(image, new Rectangle(2, 2));
    }

    @Override
    public int getIconWidth() {
      return 16;
    }

    @Override
    public int getIconHeight() {
      return 16;
    }
  }

  public static void main(String[] args) {
    EventQueue.invokeLater(new Runnable() {
      @Override
      public void run() {
        JFrame testFrame = new JFrame("TestFrame");

        JLabel label = new JLabel("Label with icon", new CustomIcon(), SwingConstants.LEFT);
        testFrame.add(label);

        testFrame.pack();
        testFrame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        testFrame.setVisible(true);
      }
    });
  }

}

运行main方法会出现如下错误

Exception in thread "AWT-EventQueue-0" java.lang.InternalError: Surface not cachable
    at sun.java2d.xr.XRPaints$XRTexture.getAccSrcSurface(XRPaints.java:211)
    at sun.java2d.xr.XRPaints$XRTexture.isPaintValid(XRPaints.java:224)
    at sun.java2d.xr.XRPaints.isValid(XRPaints.java:75)
    at sun.java2d.xr.XRSurfaceData.getMaskFill(XRSurfaceData.java:205)
    at sun.java2d.SurfaceData.validatePipe(SurfaceData.java:675)
    at sun.java2d.xr.XRSurfaceData.validatePipe(XRSurfaceData.java:123)
    at sun.java2d.SunGraphics2D.validatePipe(SunGraphics2D.java:446)
    at sun.java2d.pipe.ValidatePipe.validate(ValidatePipe.java:55)
    at sun.java2d.pipe.ValidatePipe.fillPolygon(ValidatePipe.java:147)
    at sun.java2d.SunGraphics2D.fillPolygon(SunGraphics2D.java:2389)
    at com.luciad.internal.lucy.map.TexturePaintIconTest$CustomIcon.paintIcon(TexturePaintIconTest.java:22)

我已经在 J​​ava 错误数据库(official one 和 openjdk one)中进行了搜索，但没有找到可以解释这一点的错误报告。我的自定义图标是不是做错了什么，还是偶然发现了 JDK 错误？

最佳答案

如果相同的代码根据 JVM 的不同而不同，那一定是一个错误，因为它是代码中唯一特定于操作系统的部分

关于java - 带 TexturePaint 的图标抛出 InternalError : Surface not cachable，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/26631979/