diff --git a/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ast2/AST2CPPTests.java b/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ast2/AST2CPPTests.java
index 84a68367f2a..b5ac586d43a 100644
--- a/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ast2/AST2CPPTests.java
+++ b/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ast2/AST2CPPTests.java
@@ -82,6 +82,7 @@ import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTQualifiedName;
 import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTSimpleTypeConstructorExpression;
 import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTUsingDeclaration;
 import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTWhileStatement;
+import org.eclipse.cdt.core.dom.ast.cpp.ICPPBasicType;
 import org.eclipse.cdt.core.dom.ast.cpp.ICPPBinding;
 import org.eclipse.cdt.core.dom.ast.cpp.ICPPBlockScope;
 import org.eclipse.cdt.core.dom.ast.cpp.ICPPClassScope;
@@ -5826,4 +5827,15 @@ public class AST2CPPTests extends AST2BaseTest {
 		assertEquals("Test", m1.getScope().getScopeName().toString());
 		assertSame(b, b2);
 	}
+	
+	// namespace ns { typedef int ns::TINT; } // illegal, still no CCE is expected.
+	public void testQualifiedTypedefs_Bug222093() throws Exception{
+		final String code = getContents(1)[0].toString();
+		BindingAssertionHelper bh= new BindingAssertionHelper(code, true);
+		IBinding td= bh.assertNonProblem("TINT", 4);
+		bh.assertProblem("ns::", 2);
+		
+		assertTrue(td instanceof ITypedef);
+		assertTrue(((ITypedef) td).getType() instanceof ICPPBasicType);
+	}
 }
diff --git a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPTypedef.java b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPTypedef.java
index d225db0ff6a..aa7a046c648 100644
--- a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPTypedef.java
+++ b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPTypedef.java
@@ -19,6 +19,7 @@ import org.eclipse.cdt.core.dom.ast.IASTNode;
 import org.eclipse.cdt.core.dom.ast.IScope;
 import org.eclipse.cdt.core.dom.ast.IType;
 import org.eclipse.cdt.core.dom.ast.ITypedef;
+import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTQualifiedName;
 import org.eclipse.cdt.core.dom.ast.cpp.ICPPBlockScope;
 import org.eclipse.cdt.core.parser.util.ArrayUtil;
 import org.eclipse.cdt.internal.core.dom.Linkage;
@@ -34,10 +35,11 @@ public class CPPTypedef extends PlatformObject implements ITypedef, ITypeContain
 	private IASTName[] declarations = null;
 	private IType type = null;
 
-	/**
-	 * @param declarator
-	 */
 	public CPPTypedef(IASTName name) {
+		// bug 223020 even though qualified names are not legal, we need to deal with them.
+		if (name != null && name.getParent() instanceof ICPPASTQualifiedName) {
+			name= (IASTName) name.getParent();
+		}
 		this.declarations = new IASTName[] { name };
         if (name != null)
             name.setBinding(this);
@@ -95,14 +97,23 @@ public class CPPTypedef extends PlatformObject implements ITypedef, ITypeContain
 	 * @see org.eclipse.cdt.core.dom.ast.IBinding#getName()
 	 */
 	public String getName() {
-		return declarations[0].toString();
+		return getSimpleName().toString();
+	}
+
+	private IASTName getSimpleName() {
+		IASTName name= declarations[0];
+		if (name instanceof ICPPASTQualifiedName) {
+			IASTName[] na= ((ICPPASTQualifiedName) name).getNames();
+			name= na[na.length-1];
+		}
+		return name;
 	}
 
 	/* (non-Javadoc)
 	 * @see org.eclipse.cdt.core.dom.ast.IBinding#getNameCharArray()
 	 */
 	public char[] getNameCharArray() {
-		return declarations[0].toCharArray();
+		return getSimpleName().toCharArray();
 	}
 
 	/* (non-Javadoc)
@@ -160,9 +171,18 @@ public class CPPTypedef extends PlatformObject implements ITypedef, ITypeContain
 	 * @see org.eclipse.cdt.internal.core.dom.parser.cpp.ICPPInternalBinding#addDeclaration(org.eclipse.cdt.core.dom.ast.IASTNode)
 	 */
 	public void addDeclaration(IASTNode node) {
-	    if (!(node instanceof IASTName))
+	    IASTName name;
+		if (node instanceof IASTName) {
+	    	if (node.getParent() instanceof ICPPASTQualifiedName) {
+	    		name= (IASTName) node.getParent();
+	    	}
+	    	else {
+	    		name= (IASTName) node;
+	    	}
+	    }
+	    else {
 			return;
-		IASTName name = (IASTName) node;
+	    }
 
 		if (declarations == null) {
 	        declarations = new IASTName[] { name };
diff --git a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/pdom/AbstractIndexerTask.java b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/pdom/AbstractIndexerTask.java
index a2a01509eb6..8e3e43a75da 100644
--- a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/pdom/AbstractIndexerTask.java
+++ b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/pdom/AbstractIndexerTask.java
@@ -51,6 +51,7 @@ import org.eclipse.core.runtime.IPath;
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.Path;
+import org.eclipse.core.runtime.Status;
 
 /**
  * Task for the actual indexing. Various indexers need to implement the abstract methods.
@@ -697,14 +698,18 @@ public abstract class AbstractIndexerTask extends PDOMWriter {
 	}
 
 	private void swallowError(IPath file, Throwable e) throws CoreException {
+		IStatus s;
 		if (e instanceof CoreException) {
-			CCorePlugin.log(((CoreException) e).getStatus());
+			s= ((CoreException) e).getStatus();
+			if (s.getException() == null) {
+				s= new Status(s.getSeverity(), s.getPlugin(), s.getCode(), s.getMessage(), e);
+			}
 		}
 		else {
-			IStatus status= CCorePlugin.createStatus(
+			s= CCorePlugin.createStatus(
 					MessageFormat.format(Messages.AbstractIndexerTask_errorWhileParsing, new Object[]{file}), e);
-			CCorePlugin.log(status);
 		}
+		CCorePlugin.log(s);
 		if (++fStatistics.fErrorCount > MAX_ERRORS) {
 			throw new CoreException(CCorePlugin.createStatus(Messages.AbstractIndexerTask_tooManyIndexProblems));
 		}