Bug 14421 Old .CLASS Files Are Not Deleted
When creating a project that does NOT use source folders (and does not use a bin directory for .class files) the .java and .class files are stored together in the Java package structure. When converting a project to use source folders (and the required bin directory for .class files), the old .class files stored in the Java package structure are NEVER DELETED by Eclipse. This is a bug for Eclipse 1.0 and 2.0. Since I use WSDD 4.0 (which is built on Eclipse 1.0), I've seen compilation errors due to the fact that the compiler/JDT is using old .class files rather than the new ones in the project's bin directory. I have not managed to reproduce the compile errors in build 20020416. But since the old .class files should have been deleted this is still a bug for the latest build.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/NewSourceFolderWizardPage.java
private class EditClassPathDialog extends StatusDialog implements IStatusChangeListener {
		
		private BuildPathsBlock fBuildPathsBlock;
		
		public EditClassPathDialog(Shell parent) {
			super(parent);
			fBuildPathsBlock= new BuildPathsBlock(fWorkspaceRoot, this, false);	
		}
				
		public void create() {
			super.create();
			fBuildPathsBlock.init(fCurrJProject, null, null);
		}		
				
		protected Control createDialogArea(Composite parent) {
			Composite composite= (Composite)super.createDialogArea(parent);			
			Control inner= fBuildPathsBlock.createControl(composite);
			inner.setLayoutData(new org.eclipse.swt.layout.GridData(org.eclipse.swt.layout.GridData.FILL_BOTH));
			return composite;
		}		
		
		
		public void statusChanged(IStatus status) {
			updateStatus(status);
		}
		
		protected void buttonPressed(int buttonId) {
			if (buttonId == IDialogConstants.OK_ID) {