Bug 6672 jar no longer exported after attach source
1206 1. Create a project test. 2. Add a jar (say resources.jar) to the classpath and export the entry 3. Attach source (say resourcessrc.zip) to the jar. Notice, the jar is no longer exported - this information is discarded during the attach source process.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/buildpaths/SourceAttachmentBlock.java
}
		
		
		DialogField.createEmptySpace(composite, 1);
		gd= new MGridData(MGridData.HORIZONTAL_ALIGN_FILL);
		gd.widthHint= widthHint;
		Label desc= new Label(composite, SWT.LEFT + SWT.WRAP);
		desc.setText(NewWizardMessages.getString("SourceAttachmentBlock.prefix.description"));
		desc.setLayoutData(gd);
		DialogField.createEmptySpace(composite, 2);		
		
			
		fPrefixField.doFillIntoGrid(composite, 4);
		gd= (MGridData)fPrefixField.getTextControl(null).getLayoutData();
		gd.widthHint= widthHint;
		
		if (fIsVariableEntry) {
			
			DialogField.createEmptySpace(composite, 1);	
			fPrefixResolvedLabel= new CLabel(composite, SWT.LEFT);
			fPrefixResolvedLabel.setText(getResolvedLabelString(fPrefixField.getText(), false));
			fPrefixResolvedLabel.setLayoutData(new MGridData(MGridData.HORIZONTAL_ALIGN_FILL));
			DialogField.createEmptySpace(composite, 2);
		}
		
		fFileNameField.postSetFocusOnDialogField(parent.getDisplay());