diff --git a/build/org.eclipse.cdt.autotools.ui/src/org/eclipse/cdt/internal/autotools/ui/editors/automake/StringMatcher.java b/build/org.eclipse.cdt.autotools.ui/src/org/eclipse/cdt/internal/autotools/ui/editors/automake/StringMatcher.java
index 749766412a5..370fcc352c6 100644
--- a/build/org.eclipse.cdt.autotools.ui/src/org/eclipse/cdt/internal/autotools/ui/editors/automake/StringMatcher.java
+++ b/build/org.eclipse.cdt.autotools.ui/src/org/eclipse/cdt/internal/autotools/ui/editors/automake/StringMatcher.java
@@ -101,18 +101,6 @@ public class StringMatcher {
 		return new Position(matchStart, curPos);
 	}
 
-	/**
-	 * StringMatcher constructor takes in a String object that is a simple
-	 * pattern which may contain  *  for 0 and many characters and
-	 *  ?  for exactly one character. Also takes as parameter a boolean object
-	 * specifying if case should be ignored
-	 * @deprecated Use StringMatcher(pattern, ignoreCase, ignoreWildCards).
-	 */
-	@Deprecated
-	public StringMatcher(String aPattern, boolean ignoreCase) {
-		this(aPattern, ignoreCase, false);
-	}
-
 	/**
 	 * StringMatcher constructor takes in a String object that is a simple
 	 * pattern which may contain  *  for 0 and many characters and
diff --git a/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/managedbuilder/internal/buildmodel/BuildProcessManager.java b/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/managedbuilder/internal/buildmodel/BuildProcessManager.java
index ce69fa24fcd..a476b702580 100644
--- a/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/managedbuilder/internal/buildmodel/BuildProcessManager.java
+++ b/build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/managedbuilder/internal/buildmodel/BuildProcessManager.java
@@ -140,13 +140,4 @@ public class BuildProcessManager {
 
 		return list.toArray(new String[list.size()]);
 	}
-
-	/**
-	 * @return Number of processors detected
-	 * @deprecated since CDT 9.0 - just use Runtime.getRuntime().availableProcessors()
-	 */
-	@Deprecated
-	static public int checkCPUNumber() {
-		return Runtime.getRuntime().availableProcessors();
-	}
 }
\ No newline at end of file
diff --git a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/semantics/CPPVisitor.java b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/semantics/CPPVisitor.java
index 7e3f47306c7..4a735d94472 100644
--- a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/semantics/CPPVisitor.java
+++ b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/semantics/CPPVisitor.java
@@ -169,7 +169,6 @@ import org.eclipse.cdt.core.dom.ast.cpp.ICPPNamespaceAlias;
 import org.eclipse.cdt.core.dom.ast.cpp.ICPPNamespaceScope;
 import org.eclipse.cdt.core.dom.ast.cpp.ICPPParameter;
 import org.eclipse.cdt.core.dom.ast.cpp.ICPPParameterPackType;
-import org.eclipse.cdt.core.dom.ast.cpp.ICPPReferenceType;
 import org.eclipse.cdt.core.dom.ast.cpp.ICPPScope;
 import org.eclipse.cdt.core.dom.ast.cpp.ICPPSpecialization;
 import org.eclipse.cdt.core.dom.ast.cpp.ICPPTemplateArgument;
@@ -2906,12 +2905,6 @@ public class CPPVisitor extends ASTQueries {
 		return false;
 	}
 
-	@Deprecated
-	public static boolean isLValueReference(IType t) {
-		t = SemanticUtil.getNestedType(t, TDEF);
-		return t instanceof ICPPReferenceType && !((ICPPReferenceType) t).isRValueReference();
-	}
-
 	/**
 	 * Searches for the function or class enclosing the given node. May return <code>null</code>.
 	 */