Can't Run Chapter 4 ListViewerExample

[dextercowley]

Hi. There are several problems with trying to run the JFace examples (e.g., ListViewerExample on page 194).

1. The book says to import 4 jar files: org.eclipse.core.runtime, jface, jface.text, and text. However, evidently, you also need at least two others: org.eclipse.core.boot and core.commands.

2. When you the First Project (for version for 3.3), the external libraries all point to older versions of these jar files (e.g., org.eclipse.core.boot_3.1.100.v20060601a.jar instead of the 3.3 version).

3. When I manually add all of the correct jar versions, the project builds cleanly with no problems. However, when I try to run ListViewerExample, I get a NoClassDefFoundError: org/eclipse/core/runtime/ISafeRunnable. So it would appear that I need at least one more jar file to be able to run this example.

Any help you might provide will be appreciated. Thanks. Mark Dexter

[dextercowley]

I believe I solved the problem by adding one more jar: org.eclipse.equinox.common. So the final list is (all starting with org.eclipse): core.commands, equinox.common, jface, jface.text, and text.

In your sample project, you also list the SWT jar (swt.win32.win32.x86 for me). However, in the book you have us import the SWT project org.eclipse.swt and add that project to the required projects.

I hope this will help anyone else trying to use this book with Eclipse 3.3. I'm surprised others haven't hit this problem before.

[Dan Rubel]

Thanks for your feedback.

The book says to import 4 jar files: org.eclipse.core.runtime, jface, jface.text, and text. However, evidently, you also need at least two others: org.eclipse.core.boot and core.commands.

Noted and corrected.

2. When you the First Project (for version for 3.3), the external libraries all point to older versions of these jar files (e.g., org.eclipse.core.boot_3.1.100.v20060601a.jar instead of the 3.3 version).

For convenience, I converted the "Chapter 4 SWT and JFace" examples that you import using the "QualityEclipse Book Samples" to a plug-in project so that the PDE will automatically resolve and manage the JAR references regardless of which version of Eclipse you are using. This will be part of the revised book samples available around the time of EclipseCon

3. When I manually add all of the correct jar versions, the project builds cleanly with no problems. However, when I try to run ListViewerExample, I get a NoClassDefFoundError: org/eclipse/core/runtime/ISafeRunnable. So it would appear that I need at least one more jar file to be able to run this example.

Good point... fixed and part of the next version of our book.