diff --git a/build/org.eclipse.cdt.make.core/src/org/eclipse/cdt/make/internal/core/BuildInfoFactory.java b/build/org.eclipse.cdt.make.core/src/org/eclipse/cdt/make/internal/core/BuildInfoFactory.java
index 130b65b51df..1f619688c78 100644
--- a/build/org.eclipse.cdt.make.core/src/org/eclipse/cdt/make/internal/core/BuildInfoFactory.java
+++ b/build/org.eclipse.cdt.make.core/src/org/eclipse/cdt/make/internal/core/BuildInfoFactory.java
@@ -464,7 +464,6 @@ public class BuildInfoFactory {
 				throw new CoreException(new Status(IStatus.ERROR, MakeCorePlugin.getUniqueIdentifier(), -1,
 						MakeMessages.getString("BuildInfoFactory.Missing_Builder") + builderID, null)); //$NON-NLS-1$
 			}
-			@SuppressWarnings("unchecked")
 			Map<String, String> builderArgs = builder.getArguments();
 			args = builderArgs;
 		}
diff --git a/build/org.eclipse.cdt.make.core/src/org/eclipse/cdt/make/internal/core/scannerconfig/ScannerConfigInfoFactory.java b/build/org.eclipse.cdt.make.core/src/org/eclipse/cdt/make/internal/core/scannerconfig/ScannerConfigInfoFactory.java
index 0ee40746dfb..901befd0556 100644
--- a/build/org.eclipse.cdt.make.core/src/org/eclipse/cdt/make/internal/core/scannerconfig/ScannerConfigInfoFactory.java
+++ b/build/org.eclipse.cdt.make.core/src/org/eclipse/cdt/make/internal/core/scannerconfig/ScannerConfigInfoFactory.java
@@ -306,7 +306,6 @@ public class ScannerConfigInfoFactory {
 						MakeMessages.getString("ScannerConfigInfoFactory.Missing_Builder")//$NON-NLS-1$
 							+ builderID, null)); 
 			}
-			@SuppressWarnings("unchecked")
 			Map<String,String> bArgs = builder.getArguments();
 			args = bArgs;
 		}
diff --git a/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/managedbuilder/internal/core/BuilderFactory.java b/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/managedbuilder/internal/core/BuilderFactory.java
index 9a4b7ad32ec..31f262ebfe4 100644
--- a/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/managedbuilder/internal/core/BuilderFactory.java
+++ b/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/managedbuilder/internal/core/BuilderFactory.java
@@ -266,7 +266,6 @@ public class BuilderFactory {
 		return new Builder(cfg.getToolChain(), subId, subName, (Builder)base);
 	}
 	
-	@SuppressWarnings("unchecked")
 	public static IBuilder createBuilderFromCommand(IConfiguration cfg, ICommand command){
 		Map<String, String> args = command.getArguments();
 		if(!args.containsKey(IBuilder.ID)){
@@ -436,7 +435,6 @@ public class BuilderFactory {
 		return NO_CHANGES;
 	}
 	
-	@SuppressWarnings("unchecked")
 	public static boolean applyBuilder(ICommand cmd, IBuilder builder) {
 		Map<String, String> oldMap = cmd.getArguments();
 		Map<String, String> map = builderBuildArgsMap(builder);