diff --git a/core/org.eclipse.cdt.core/src/org/eclipse/cdt/core/resources/ACBuilder.java b/core/org.eclipse.cdt.core/src/org/eclipse/cdt/core/resources/ACBuilder.java
index 3b465f7e5ae..eb7e2e9dd43 100644
--- a/core/org.eclipse.cdt.core/src/org/eclipse/cdt/core/resources/ACBuilder.java
+++ b/core/org.eclipse.cdt.core/src/org/eclipse/cdt/core/resources/ACBuilder.java
@@ -12,9 +12,7 @@
 package org.eclipse.cdt.core.resources;
 
 
-import java.io.File;
 import java.net.URI;
-import java.net.URISyntaxException;
 import java.util.Map;
 
 import org.eclipse.cdt.core.CCorePlugin;
@@ -24,17 +22,13 @@ import org.eclipse.cdt.core.model.CoreModel;
 import org.eclipse.cdt.core.model.ICModelMarker;
 import org.eclipse.cdt.core.settings.model.ICConfigurationDescription;
 import org.eclipse.cdt.core.settings.model.ICProjectDescription;
-import org.eclipse.core.filesystem.EFS;
-import org.eclipse.core.filesystem.IFileStore;
 import org.eclipse.core.filesystem.URIUtil;
 import org.eclipse.core.resources.IMarker;
 import org.eclipse.core.resources.IProject;
 import org.eclipse.core.resources.IResource;
 import org.eclipse.core.resources.IncrementalProjectBuilder;
 import org.eclipse.core.runtime.CoreException;
-import org.eclipse.core.runtime.IPath;
 import org.eclipse.core.runtime.IProgressMonitor;
-import org.eclipse.core.runtime.Path;
 import org.eclipse.core.runtime.Preferences;
 import org.eclipse.core.runtime.jobs.ISchedulingRule;
 import org.eclipse.osgi.util.NLS;