Bug 277676 [UI] The workbench should create the contexts
The workbench should create contexts for the model elements, MApplication and MParts (windows, sashes, contributed parts, etc). This is not really the responsibility of the renderers. PW
bundles/org.eclipse.e4.ui.model.workbench/src/org/eclipse/e4/ui/model/internal/workbench/WorkbenchPackageImpl.java
private boolean isCreated = false;
	/**
	 * Creates the meta-model objects for the package.  This method is
	 * guarded to have no affect on any invocation but its first.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void createPackageContents() {
		if (isCreated) return;
		isCreated = true;
		
		mWorkbenchWindowEClass = createEClass(MWORKBENCH_WINDOW);
		createEReference(mWorkbenchWindowEClass, MWORKBENCH_WINDOW__SHARED_PARTS);
		mProxyPartEClass = createEClass(MPROXY_PART);
		createEReference(mProxyPartEClass, MPROXY_PART__PART);
		mPerspectiveEClass = createEClass(MPERSPECTIVE);
		mWorkbenchEClass = createEClass(MWORKBENCH);
		createEReference(mWorkbenchEClass, MWORKBENCH__WB_WINDOWS);
		createEReference(mWorkbenchEClass, MWORKBENCH__CUR_WBW);
	}
	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	private boolean isInitialized = false;
	/**
	 * Complete the initialization of the package and its meta-model.  This
	 * method is guarded to have no affect on any invocation but its first.