diff --git a/build/org.eclipse.cdt.managedbuilder.core/META-INF/MANIFEST.MF b/build/org.eclipse.cdt.managedbuilder.core/META-INF/MANIFEST.MF
index 8b896ab2b29..ee41ef55a15 100644
--- a/build/org.eclipse.cdt.managedbuilder.core/META-INF/MANIFEST.MF
+++ b/build/org.eclipse.cdt.managedbuilder.core/META-INF/MANIFEST.MF
@@ -2,7 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: %pluginName
 Bundle-SymbolicName: org.eclipse.cdt.managedbuilder.core; singleton:=true
-Bundle-Version: 9.6.0.qualifier
+Bundle-Version: 9.6.100.qualifier
 Bundle-Activator: org.eclipse.cdt.managedbuilder.core.ManagedBuilderCorePlugin
 Bundle-Vendor: %providerName
 Bundle-Localization: plugin
diff --git a/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/managedbuilder/internal/tcmodification/ToolListModification.java b/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/managedbuilder/internal/tcmodification/ToolListModification.java
index 782954300da..9582beede63 100644
--- a/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/managedbuilder/internal/tcmodification/ToolListModification.java
+++ b/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/managedbuilder/internal/tcmodification/ToolListModification.java
@@ -411,7 +411,8 @@ public abstract class ToolListModification implements IToolListModification {
 
 	public ToolListModification(ResourceInfo rcInfo, ToolListModification base) {
 		fRcInfo = rcInfo;
-		Tool[] initialTools = (Tool[]) rcInfo.getTools();
+		ITool[] itools = rcInfo.getTools();
+		Tool[] initialTools = Arrays.copyOf(itools, itools.length, Tool[].class);
 		@SuppressWarnings("unchecked")
 		Map<Tool, Tool> initRealToToolMap = (Map<Tool, Tool>) TcModificationUtil.getRealToObjectsMap(initialTools,
 				null);