Bug 14236 Unable to log info messages during jar packaging
Using the 04/18 Integration build, I still can't get an info message into the status maintained by JarFileExportOperation. In my JarWriter implementation, the close() method is throwing a CoreException which contains a status whose severity is set to IStatus.INFO. However, note that JarFileExportOperation.addToStatus() only accepts ERROR and WARNING (and only when they are being logged respectively which they are for my package data).
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/jarpackager/JarFileExportOperation.java
private void exportContainer(IProgressMonitor progressMonitor, IContainer container) throws java.lang.InterruptedException {
		if (container.getType() == IResource.FOLDER && isOutputFolder((IFolder)container))
			return;
		
		IResource[] children= null;
		try {
			children= container.members();
		} catch (CoreException e) {
			
			addWarning(JarPackagerMessages.getFormattedString("JarFileExportOperation.errorDuringExport", container.getFullPath()), e); 
		}
		for (int i= 0; i < children.length; i++)
			exportElement(children[i], progressMonitor);
	}
	private IPackageFragmentRoot findPackageFragmentRoot(IJavaProject jProject, IPath path) throws JavaModelException {
		if (jProject == null || path == null || path.segmentCount() <= 0)
			return null;
		IPackageFragmentRoot pkgRoot= jProject.findPackageFragmentRoot(path);
		if (pkgRoot != null)
			return pkgRoot;
		else 
			return findPackageFragmentRoot(jProject, path.removeLastSegments(1));
	}
	private void exportResource(IProgressMonitor progressMonitor, IPackageFragmentRoot pkgRoot, boolean isInJavaProject, IResource resource, IPath destinationPath, boolean isInOutputFolder) {
		boolean isNonJavaResource= !isInJavaProject || pkgRoot == null;
		boolean isInClassFolder= false;
		try {
			isInClassFolder= pkgRoot != null && !pkgRoot.isArchive() && pkgRoot.getKind() == pkgRoot.K_BINARY;
		} catch (JavaModelException ex) {
			addWarning(JarPackagerMessages.getFormattedString("JarFileExportOperation.cantGetRootKind", resource.getFullPath()), ex);