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Serialisation problem

[1 Reply]
- 12-Jul-2013 11:12 AM
- Forum: Programming Questions
Hi,

I'm making a 2D Minecraft clone, and yes, that's very original.

I'm trying to serialise the blocks now, but I get an exception.

This is the code I'm using to serialise the blocks:

(part of the Chunk class)
2. void saveBlocks() {
3. try {
4. for (int x = 0; x < Width; x++) {
5. for (int y = 0; y < Height; y++) {
6. File f = new File(+0+"_"+0+".bl");
7. if (f.canWrite()) {
8. FileOutputStream fileOut = new FileOutputStream(f.getAbsolutePath());
9. ObjectOutputStream out = new ObjectOutputStream(fileOut);
10. out.writeObject(blocks[x][y]);
11. out.flush();
12. out.close();
13. fileOut.flush();
14. fileOut.close();
15. println("XXX SUCCES XXX");
16. }
17. else {print(".");}
18. }
19. }
20. }
21. catch(Exception i){
22. i.printStackTrace();
23. }
24. }
And this is the exception:
2. java.io.NotSerializableException: com.jogamp.nativewindow.awt.AWTGraphicsConfiguration
3. at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1164)
4. at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1518)
5. at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1483)
6. at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1400)
7. at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1158)
8. at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1346)
9. at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1154)
10. at java.io.ObjectOutputStream.access$300(ObjectOutputStream.java:143)
11. at java.io.ObjectOutputStream$PutFieldImpl.writeFields(ObjectOutputStream.java:1677)
12. at java.io.ObjectOutputStream.writeFields(ObjectOutputStream.java:462)
13. at java.awt.Container.writeObject(Container.java:3590)
14. at sun.reflect.GeneratedMethodAccessor5.invoke(Unknown Source)
15. at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
16. at java.lang.reflect.Method.invoke(Method.java:597)
17. at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:940)
18. at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1469)
19. at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1400)
20. at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1158)
21. at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1518)
22. at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1483)
23. at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1400)
24. at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1158)
25. at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:330)
26. at e006v016$Chunk.saveBlocks(e006v016.java:525)
27. at e006v016$ChunkManager.replaceChunk(e006v016.java:922)
28. at e006v016$ChunkManager.update(e006v016.java:907)
29. at e006v016.draw(e006v016.java:68)
30. at processing.core.PApplet.handleDraw(PApplet.java:2270)
31. at processing.opengl.PGL$PGLListener.display(PGL.java:2643)
32. at jogamp.opengl.GLDrawableHelper.displayImpl(GLDrawableHelper.java:576)
33. at jogamp.opengl.GLDrawableHelper.display(GLDrawableHelper.java:561)
34. at javax.media.opengl.awt.GLCanvas$7.run(GLCanvas.java:1054)
35. at jogamp.opengl.GLDrawableHelper.invokeGLImpl(GLDrawableHelper.java:1024)
36. at jogamp.opengl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:899)
37. at javax.media.opengl.awt.GLCanvas$8.run(GLCanvas.java:1065)
38. at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:199)
39. at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:708)
40. at java.awt.EventQueue.access$400(EventQueue.java:82)
41. at java.awt.EventQueue$2.run(EventQueue.java:669)
42. at java.awt.EventQueue$2.run(EventQueue.java:667)
43. at java.security.AccessController.doPrivileged(Native Method)
44. at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
45. at java.awt.EventQueue.dispatchEvent(EventQueue.java:678)
46. at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:296)
47. at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:211)
48. at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:201)
49. at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:196)
50. at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:188)
51. at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
What am I doing wrong here? I didn't even know my class implemented "com.jogamp.nativewindow.awt.AWTGraphicsConfiguration".

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