[Fixes #2115] builder fields tracking a property that has a default set is now called `$value` in order to convey that you shouldnt manually mess with it.

9 files changed, 108 insertions, 77 deletions

diff --git a/src/core/lombok/eclipse/handlers/EclipseHandlerUtil.java b/src/core/lombok/eclipse/handlers/EclipseHandlerUtil.java
index 1a0633bf..37976ae3 100644
--- a/src/core/lombok/eclipse/handlers/EclipseHandlerUtil.java
+++ b/src/core/lombok/eclipse/handlers/EclipseHandlerUtil.java
@@ -1816,12 +1816,12 @@ public class EclipseHandlerUtil {
 	}
 	
 	/**
-	 * Generates a new statement that checks if the given variable is null, and if so, throws a specified exception with the
+	 * Generates a new statement that checks if the given local variable is null, and if so, throws a specified exception with the
 	 * variable name as message.
 	 * 
 	 * @param exName The name of the exception to throw; normally {@code java.lang.NullPointerException}.
 	 */
-	public static Statement generateNullCheck(AbstractVariableDeclaration variable, EclipseNode sourceNode) {
+	public static Statement generateNullCheck(TypeReference type, char[] variable, EclipseNode sourceNode) {
 		NullCheckExceptionType exceptionType = sourceNode.getAst().readConfiguration(ConfigurationKeys.NON_NULL_EXCEPTION_TYPE);
 		if (exceptionType == null) exceptionType = NullCheckExceptionType.NULL_POINTER_EXCEPTION;
 		
@@ -1830,11 +1830,11 @@ public class EclipseHandlerUtil {
 		int pS = source.sourceStart, pE = source.sourceEnd;
 		long p = (long)pS << 32 | pE;
 		
-		if (isPrimitive(variable.type)) return null;
+		if (isPrimitive(type)) return null;
 		AllocationExpression exception = new AllocationExpression();
 		setGeneratedBy(exception, source);
 		
-		SingleNameReference varName = new SingleNameReference(variable.name, p);
+		SingleNameReference varName = new SingleNameReference(variable, p);
 		setGeneratedBy(varName, source);
 		NullLiteral nullLiteral = new NullLiteral(pS, pE);
 		setGeneratedBy(nullLiteral, source);
@@ -1844,7 +1844,7 @@ public class EclipseHandlerUtil {
 		equalExpression.sourceStart = pS; equalExpression.statementEnd = equalExpression.sourceEnd = pE;
 		setGeneratedBy(equalExpression, source);
 
-		StringLiteral message = new StringLiteral(exceptionType.toExceptionMessage(new String(variable.name)).toCharArray(), pS, pE, 0);
+		StringLiteral message = new StringLiteral(exceptionType.toExceptionMessage(new String(variable)).toCharArray(), pS, pE, 0);
 		setGeneratedBy(message, source);
 		
 		if (exceptionType == NullCheckExceptionType.ASSERTION) {
@@ -1876,6 +1876,16 @@ public class EclipseHandlerUtil {
 	}
 	
 	/**
+	 * Generates a new statement that checks if the given variable is null, and if so, throws a specified exception with the
+	 * variable name as message.
+	 * 
+	 * @param exName The name of the exception to throw; normally {@code java.lang.NullPointerException}.
+	 */
+	public static Statement generateNullCheck(AbstractVariableDeclaration variable, EclipseNode sourceNode) {
+		return generateNullCheck(variable.type, variable.name, sourceNode);
+	}
+	
+	/**
 	 * Create an annotation of the given name, and is marked as being generated by the given source.
 	 */
 	public static MarkerAnnotation makeMarkerAnnotation(char[][] name, ASTNode source) {
diff --git a/src/core/lombok/eclipse/handlers/HandleBuilder.java b/src/core/lombok/eclipse/handlers/HandleBuilder.java
index aa9d2147..d2b1b823 100755
--- a/src/core/lombok/eclipse/handlers/HandleBuilder.java
+++ b/src/core/lombok/eclipse/handlers/HandleBuilder.java
@@ -113,6 +113,7 @@ public class HandleBuilder extends EclipseAnnotationHandler<Builder> {
 		TypeReference type;
 		char[] rawName;
 		char[] name;
+		char[] builderFieldName;
 		char[] nameOfDefaultProvider;
 		char[] nameOfSetFlag;
 		SingularData singularData;
@@ -143,6 +144,7 @@ public class HandleBuilder extends EclipseAnnotationHandler<Builder> {
 	
 	private static final char[] DEFAULT_PREFIX = {'$', 'd', 'e', 'f', 'a', 'u', 'l', 't', '$'};
 	private static final char[] SET_PREFIX = {'$', 's', 'e', 't'};
+	private static final char[] VALUE_PREFIX = {'$', 'v', 'a', 'l', 'u', 'e'};
 	
 	private static final char[] prefixWith(char[] prefix, char[] name) {
 		char[] out = new char[prefix.length + name.length];
@@ -229,6 +231,7 @@ public class HandleBuilder extends EclipseAnnotationHandler<Builder> {
 				BuilderFieldData bfd = new BuilderFieldData();
 				bfd.rawName = fieldNode.getName().toCharArray();
 				bfd.name = removePrefixFromField(fieldNode);
+				bfd.builderFieldName = bfd.name;
 				bfd.annotations = copyAnnotations(fd, copyableAnnotations);
 				bfd.type = fd.type;
 				bfd.singularData = getSingularData(fieldNode, ast);
@@ -253,6 +256,7 @@ public class HandleBuilder extends EclipseAnnotationHandler<Builder> {
 				if (isDefault != null) {
 					bfd.nameOfDefaultProvider = prefixWith(DEFAULT_PREFIX, bfd.name);
 					bfd.nameOfSetFlag = prefixWith(bfd.name, SET_PREFIX);
+					bfd.builderFieldName = prefixWith(bfd.name, VALUE_PREFIX);
 					
 					MethodDeclaration md = generateDefaultProvider(bfd.nameOfDefaultProvider, td.typeParameters, fieldNode, ast);
 					if (md != null) injectMethod(tdParent, md);
@@ -410,6 +414,7 @@ public class HandleBuilder extends EclipseAnnotationHandler<Builder> {
 				
 				bfd.rawName = arg.name;
 				bfd.name = arg.name;
+				bfd.builderFieldName = bfd.name;
 				bfd.annotations = copyAnnotations(arg, copyableAnnotations);
 				bfd.type = arg.type;
 				bfd.singularData = getSingularData(param, ast);
@@ -661,7 +666,7 @@ public class HandleBuilder extends EclipseAnnotationHandler<Builder> {
 		
 		for (BuilderFieldData bfd : builderFields) {
 			if (bfd.singularData != null && bfd.singularData.getSingularizer() != null) {
-				bfd.singularData.getSingularizer().appendBuildCode(bfd.singularData, type, statements, bfd.name, "this");
+				bfd.singularData.getSingularizer().appendBuildCode(bfd.singularData, type, statements, bfd.builderFieldName, "this");
 			}
 		}
 		
@@ -677,10 +682,10 @@ public class HandleBuilder extends EclipseAnnotationHandler<Builder> {
 				
 				args.add(new ConditionalExpression(
 					new SingleNameReference(bfd.nameOfSetFlag, 0L),
-					new SingleNameReference(bfd.name, 0L),
+					new SingleNameReference(bfd.builderFieldName, 0L),
 					inv));
 			} else {
-				args.add(new SingleNameReference(bfd.name, 0L));
+				args.add(new SingleNameReference(bfd.builderFieldName, 0L));
 			}
 		}
 		
@@ -781,12 +786,12 @@ public class HandleBuilder extends EclipseAnnotationHandler<Builder> {
 				EclipseNode field = null, setFlag = null;
 				for (EclipseNode exists : existing) {
 					char[] n = ((FieldDeclaration) exists.get()).name;
-					if (Arrays.equals(n, bfd.name)) field = exists;
+					if (Arrays.equals(n, bfd.builderFieldName)) field = exists;
 					if (bfd.nameOfSetFlag != null && Arrays.equals(n, bfd.nameOfSetFlag)) setFlag = exists;
 				}
 				
 				if (field == null) {
-					FieldDeclaration fd = new FieldDeclaration(bfd.name, 0, 0);
+					FieldDeclaration fd = new FieldDeclaration(bfd.builderFieldName, 0, 0);
 					fd.bits |= Eclipse.ECLIPSE_DO_NOT_TOUCH_FLAG;
 					fd.modifiers = ClassFileConstants.AccPrivate;
 					fd.type = copyType(bfd.type);
@@ -811,13 +816,13 @@ public class HandleBuilder extends EclipseAnnotationHandler<Builder> {
 	public void makeSetterMethodsForBuilder(EclipseNode builderType, BuilderFieldData bfd, EclipseNode sourceNode, boolean fluent, boolean chain, AccessLevel access, EclipseNode originalFieldNode) {
 		boolean deprecate = isFieldDeprecated(bfd.originalFieldNode);
 		if (bfd.singularData == null || bfd.singularData.getSingularizer() == null) {
-			makeSimpleSetterMethodForBuilder(builderType, deprecate, bfd.createdFields.get(0), bfd.nameOfSetFlag, sourceNode, fluent, chain, bfd.annotations, access, originalFieldNode);
+			makeSimpleSetterMethodForBuilder(builderType, deprecate, bfd.createdFields.get(0), bfd.name, bfd.nameOfSetFlag, sourceNode, fluent, chain, bfd.annotations, access, originalFieldNode);
 		} else {
 			bfd.singularData.getSingularizer().generateMethods(bfd.singularData, deprecate, builderType, fluent, chain, access);
 		}
 	}
 	
-	private void makeSimpleSetterMethodForBuilder(EclipseNode builderType, boolean deprecate, EclipseNode fieldNode, char[] nameOfSetFlag, EclipseNode sourceNode, boolean fluent, boolean chain, Annotation[] annotations, AccessLevel access, EclipseNode originalFieldNode) {
+	private void makeSimpleSetterMethodForBuilder(EclipseNode builderType, boolean deprecate, EclipseNode fieldNode, char[] paramName, char[] nameOfSetFlag, EclipseNode sourceNode, boolean fluent, boolean chain, Annotation[] annotations, AccessLevel access, EclipseNode originalFieldNode) {
 		TypeDeclaration td = (TypeDeclaration) builderType.get();
 		AbstractMethodDeclaration[] existing = td.methods;
 		if (existing == null) existing = EMPTY;
@@ -831,12 +836,12 @@ public class HandleBuilder extends EclipseAnnotationHandler<Builder> {
 			if (Arrays.equals(name, existingName) && !isTolerate(fieldNode, existing[i])) return;
 		}
 		
-		String setterName = fluent ? fieldNode.getName() : HandlerUtil.buildAccessorName("set", fieldNode.getName());
+		String setterName = fluent ? new String(paramName) : HandlerUtil.buildAccessorName("set", new String(paramName));
 		
 		List<Annotation> methodAnnsList = Collections.<Annotation>emptyList();
 		Annotation[] methodAnns = EclipseHandlerUtil.findCopyableToSetterAnnotations(originalFieldNode);
 		if (methodAnns != null && methodAnns.length > 0) methodAnnsList = Arrays.asList(methodAnns);
-		MethodDeclaration setter = HandleSetter.createSetter(td, deprecate, fieldNode, setterName, nameOfSetFlag, chain, toEclipseModifier(access),
+		MethodDeclaration setter = HandleSetter.createSetter(td, deprecate, fieldNode, setterName, paramName, nameOfSetFlag, chain, toEclipseModifier(access),
 			sourceNode, methodAnnsList, annotations != null ? Arrays.asList(copyAnnotations(sourceNode.get(), annotations)) : Collections.<Annotation>emptyList());
 		injectMethod(builderType, setter);
 	}
diff --git a/src/core/lombok/eclipse/handlers/HandleSetter.java b/src/core/lombok/eclipse/handlers/HandleSetter.java
index 4ea83cf6..bb704ead 100644
--- a/src/core/lombok/eclipse/handlers/HandleSetter.java
+++ b/src/core/lombok/eclipse/handlers/HandleSetter.java
@@ -184,11 +184,11 @@ public class HandleSetter extends EclipseAnnotationHandler<Setter> {
 			}
 		}
 		
-		MethodDeclaration method = createSetter((TypeDeclaration) fieldNode.up().get(), false, fieldNode, setterName, null, shouldReturnThis, modifier, sourceNode, onMethod, onParam);
+		MethodDeclaration method = createSetter((TypeDeclaration) fieldNode.up().get(), false, fieldNode, setterName, null, null, shouldReturnThis, modifier, sourceNode, onMethod, onParam);
 		injectMethod(fieldNode.up(), method);
 	}
 
-	static MethodDeclaration createSetter(TypeDeclaration parent, boolean deprecate, EclipseNode fieldNode, String name, char[] booleanFieldToSet, boolean shouldReturnThis, int modifier, EclipseNode sourceNode, List<Annotation> onMethod, List<Annotation> onParam) {
+	static MethodDeclaration createSetter(TypeDeclaration parent, boolean deprecate, EclipseNode fieldNode, String name, char[] paramName, char[] booleanFieldToSet, boolean shouldReturnThis, int modifier, EclipseNode sourceNode, List<Annotation> onMethod, List<Annotation> onParam) {
 		ASTNode source = sourceNode.get();
 		int pS = source.sourceStart, pE = source.sourceEnd;
 		
@@ -200,14 +200,15 @@ public class HandleSetter extends EclipseAnnotationHandler<Setter> {
 			returnThis = new ReturnStatement(thisRef, pS, pE);
 		}
 		
-		return createSetter(parent, deprecate, fieldNode, name, booleanFieldToSet, returnType, returnThis, modifier, sourceNode, onMethod, onParam);
+		return createSetter(parent, deprecate, fieldNode, name, paramName, booleanFieldToSet, returnType, returnThis, modifier, sourceNode, onMethod, onParam);
 	}
 	
-	static MethodDeclaration createSetter(TypeDeclaration parent, boolean deprecate, EclipseNode fieldNode, String name, char[] booleanFieldToSet, TypeReference returnType, Statement returnStatement, int modifier, EclipseNode sourceNode, List<Annotation> onMethod, List<Annotation> onParam) {
+	static MethodDeclaration createSetter(TypeDeclaration parent, boolean deprecate, EclipseNode fieldNode, String name, char[] paramName, char[] booleanFieldToSet, TypeReference returnType, Statement returnStatement, int modifier, EclipseNode sourceNode, List<Annotation> onMethod, List<Annotation> onParam) {
 		FieldDeclaration field = (FieldDeclaration) fieldNode.get();
+		if (paramName == null) paramName = field.name;
 		ASTNode source = sourceNode.get();
 		int pS = source.sourceStart, pE = source.sourceEnd;
-		long p = (long)pS << 32 | pE;
+		long p = (long) pS << 32 | pE;
 		MethodDeclaration method = new MethodDeclaration(parent.compilationResult);
 		method.modifiers = modifier;
 		if (returnType != null) {
@@ -221,7 +222,7 @@ public class HandleSetter extends EclipseAnnotationHandler<Setter> {
 			deprecated = new Annotation[] { generateDeprecatedAnnotation(source) };
 		}
 		method.annotations = mergeAnnotations(copyAnnotations(source, onMethod.toArray(new Annotation[0]), deprecated), findCopyableToSetterAnnotations(fieldNode));
-		Argument param = new Argument(field.name, p, copyType(field.type, source), Modifier.FINAL);
+		Argument param = new Argument(paramName, p, copyType(field.type, source), Modifier.FINAL);
 		param.sourceStart = pS; param.sourceEnd = pE;
 		method.arguments = new Argument[] { param };
 		method.selector = name.toCharArray();
@@ -230,8 +231,8 @@ public class HandleSetter extends EclipseAnnotationHandler<Setter> {
 		method.typeParameters = null;
 		method.bits |= ECLIPSE_DO_NOT_TOUCH_FLAG;
 		Expression fieldRef = createFieldAccessor(fieldNode, FieldAccess.ALWAYS_FIELD, source);
-		NameReference fieldNameRef = new SingleNameReference(field.name, p);
-		Assignment assignment = new Assignment(fieldRef, fieldNameRef, (int)p);
+		NameReference fieldNameRef = new SingleNameReference(paramName, p);
+		Assignment assignment = new Assignment(fieldRef, fieldNameRef, (int) p);
 		assignment.sourceStart = pS; assignment.sourceEnd = assignment.statementEnd = pE;
 		method.bodyStart = method.declarationSourceStart = method.sourceStart = source.sourceStart;
 		method.bodyEnd = method.declarationSourceEnd = method.sourceEnd = source.sourceEnd;
@@ -241,7 +242,7 @@ public class HandleSetter extends EclipseAnnotationHandler<Setter> {
 		if (!hasNonNullAnnotations(fieldNode) && !hasNonNullAnnotations(fieldNode, onParam)) {
 			statements.add(assignment);
 		} else {
-			Statement nullCheck = generateNullCheck(field, sourceNode);
+			Statement nullCheck = generateNullCheck(field.type, paramName, sourceNode);
 			if (nullCheck != null) statements.add(nullCheck);
 			statements.add(assignment);
 		}
diff --git a/src/core/lombok/eclipse/handlers/HandleSuperBuilder.java b/src/core/lombok/eclipse/handlers/HandleSuperBuilder.java
index f204bc24..88479911 100755
--- a/src/core/lombok/eclipse/handlers/HandleSuperBuilder.java
+++ b/src/core/lombok/eclipse/handlers/HandleSuperBuilder.java
@@ -81,6 +81,7 @@ import lombok.ConfigurationKeys;
 import lombok.Singular;
 import lombok.ToString;
 import lombok.core.AST.Kind;
+import lombok.core.handlers.HandlerUtil;
 import lombok.core.handlers.InclusionExclusionUtils.Included;
 import lombok.core.AnnotationValues;
 import lombok.core.HandlerPriority;
@@ -103,6 +104,7 @@ public class HandleSuperBuilder extends EclipseAnnotationHandler<SuperBuilder> {
 	private static final char[] CLEAN_METHOD_NAME = "$lombokClean".toCharArray();
 	private static final char[] DEFAULT_PREFIX = "$default$".toCharArray();
 	private static final char[] SET_PREFIX = "$set".toCharArray();
+	private static final char[] VALUE_PREFIX = "$value".toCharArray();
 	private static final char[] SELF_METHOD_NAME = "self".toCharArray();
 	private static final String TO_BUILDER_METHOD_NAME_STRING = "toBuilder";
 	private static final char[] TO_BUILDER_METHOD_NAME = TO_BUILDER_METHOD_NAME_STRING.toCharArray();
@@ -169,6 +171,7 @@ public class HandleSuperBuilder extends EclipseAnnotationHandler<SuperBuilder> {
 			BuilderFieldData bfd = new BuilderFieldData();
 			bfd.rawName = fieldNode.getName().toCharArray();
 			bfd.name = removePrefixFromField(fieldNode);
+			bfd.builderFieldName = bfd.name;
 			bfd.annotations = copyAnnotations(fd, copyableAnnotations);
 			bfd.type = fd.type;
 			bfd.singularData = getSingularData(fieldNode, ast);
@@ -193,6 +196,7 @@ public class HandleSuperBuilder extends EclipseAnnotationHandler<SuperBuilder> {
 			if (isDefault != null) {
 				bfd.nameOfDefaultProvider = prefixWith(DEFAULT_PREFIX, bfd.name);
 				bfd.nameOfSetFlag = prefixWith(bfd.name, SET_PREFIX);
+				bfd.builderFieldName = prefixWith(bfd.name, VALUE_PREFIX);
 				
 				MethodDeclaration md = HandleBuilder.generateDefaultProvider(bfd.nameOfDefaultProvider, td.typeParameters, fieldNode, ast);
 				if (md != null) injectMethod(tdParent, md);
@@ -519,7 +523,6 @@ public class HandleSuperBuilder extends EclipseAnnotationHandler<SuperBuilder> {
 		List<Statement> statements = new ArrayList<Statement>();
 		
 		for (BuilderFieldData fieldNode : builderFields) {
-			char[] fieldName = removePrefixFromField(fieldNode.originalFieldNode);
 			FieldReference fieldInThis = new FieldReference(fieldNode.rawName, p);
 			int s = (int) (p >> 32);
 			int e = (int) p;
@@ -527,10 +530,10 @@ public class HandleSuperBuilder extends EclipseAnnotationHandler<SuperBuilder> {
 			
 			Expression assignmentExpr;
 			if (fieldNode.singularData != null && fieldNode.singularData.getSingularizer() != null) {
-				fieldNode.singularData.getSingularizer().appendBuildCode(fieldNode.singularData, typeNode, statements, fieldNode.name, BUILDER_VARIABLE_NAME_STRING);
-				assignmentExpr = new SingleNameReference(fieldNode.name, p);
+				fieldNode.singularData.getSingularizer().appendBuildCode(fieldNode.singularData, typeNode, statements, fieldNode.builderFieldName, BUILDER_VARIABLE_NAME_STRING);
+				assignmentExpr = new SingleNameReference(fieldNode.builderFieldName, p);
 			} else {
-				char[][] variableInBuilder = new char[][] {BUILDER_VARIABLE_NAME, fieldName};
+				char[][] variableInBuilder = new char[][] {BUILDER_VARIABLE_NAME, fieldNode.builderFieldName};
 				long[] positions = new long[] {p, p};
 				assignmentExpr = new QualifiedNameReference(variableInBuilder, positions, s, e);
 			}
@@ -844,12 +847,12 @@ public class HandleSuperBuilder extends EclipseAnnotationHandler<SuperBuilder> {
 				EclipseNode field = null, setFlag = null;
 				for (EclipseNode exists : existing) {
 					char[] n = ((FieldDeclaration) exists.get()).name;
-					if (Arrays.equals(n, bfd.name)) field = exists;
+					if (Arrays.equals(n, bfd.builderFieldName)) field = exists;
 					if (bfd.nameOfSetFlag != null && Arrays.equals(n, bfd.nameOfSetFlag)) setFlag = exists;
 				}
 				
 				if (field == null) {
-					FieldDeclaration fd = new FieldDeclaration(bfd.name, 0, 0);
+					FieldDeclaration fd = new FieldDeclaration(bfd.builderFieldName, 0, 0);
 					fd.bits |= Eclipse.ECLIPSE_DO_NOT_TOUCH_FLAG;
 					fd.modifiers = ClassFileConstants.AccPrivate;
 					fd.type = copyType(bfd.type);
@@ -888,13 +891,13 @@ public class HandleSuperBuilder extends EclipseAnnotationHandler<SuperBuilder> {
 		};
 		
 		if (bfd.singularData == null || bfd.singularData.getSingularizer() == null) {
-			generateSimpleSetterMethodForBuilder(builderType, deprecate, bfd.createdFields.get(0), bfd.nameOfSetFlag, returnTypeMaker.make(), returnStatementMaker.make(), sourceNode, bfd.annotations, bfd.originalFieldNode);
+			generateSimpleSetterMethodForBuilder(builderType, deprecate, bfd.createdFields.get(0), bfd.name, bfd.nameOfSetFlag, true, returnTypeMaker.make(), returnStatementMaker.make(), sourceNode, bfd.annotations, bfd.originalFieldNode);
 		} else {
 			bfd.singularData.getSingularizer().generateMethods(bfd.singularData, deprecate, builderType, true, returnTypeMaker, returnStatementMaker, AccessLevel.PUBLIC);
 		}
 	}
 
-	private void generateSimpleSetterMethodForBuilder(EclipseNode builderType, boolean deprecate, EclipseNode fieldNode, char[] nameOfSetFlag, TypeReference returnType, Statement returnStatement, EclipseNode sourceNode, Annotation[] annosOnParam, EclipseNode originalFieldNode) {
+	private void generateSimpleSetterMethodForBuilder(EclipseNode builderType, boolean deprecate, EclipseNode fieldNode, char[] paramName, char[] nameOfSetFlag, boolean fluent, TypeReference returnType, Statement returnStatement, EclipseNode sourceNode, Annotation[] annosOnParam, EclipseNode originalFieldNode) {
 		TypeDeclaration td = (TypeDeclaration) builderType.get();
 		AbstractMethodDeclaration[] existing = td.methods;
 		if (existing == null) existing = EMPTY_METHODS;
@@ -908,12 +911,12 @@ public class HandleSuperBuilder extends EclipseAnnotationHandler<SuperBuilder> {
 			if (Arrays.equals(name, existingName) && !isTolerate(fieldNode, existing[i])) return;
 		}
 		
-		String setterName = fieldNode.getName();
+		String setterName = fluent ? new String(paramName) : HandlerUtil.buildAccessorName("set", new String(paramName));
 		
 		List<Annotation> methodAnnsList = Collections.<Annotation>emptyList();
 		Annotation[] methodAnns = EclipseHandlerUtil.findCopyableToSetterAnnotations(originalFieldNode);
 		if (methodAnns != null && methodAnns.length > 0) methodAnnsList = Arrays.asList(methodAnns);
-		MethodDeclaration setter = HandleSetter.createSetter(td, deprecate, fieldNode, setterName, nameOfSetFlag, returnType, returnStatement, ClassFileConstants.AccPublic,
+		MethodDeclaration setter = HandleSetter.createSetter(td, deprecate, fieldNode, setterName, paramName, nameOfSetFlag, returnType, returnStatement, ClassFileConstants.AccPublic,
 			sourceNode, methodAnnsList, annosOnParam != null ? Arrays.asList(copyAnnotations(sourceNode.get(), annosOnParam)) : Collections.<Annotation>emptyList());
 		injectMethod(builderType, setter);
 	}
diff --git a/src/core/lombok/javac/handlers/HandleBuilder.java b/src/core/lombok/javac/handlers/HandleBuilder.java
index b339c2ca..35a6dc26 100644
--- a/src/core/lombok/javac/handlers/HandleBuilder.java
+++ b/src/core/lombok/javac/handlers/HandleBuilder.java
@@ -89,6 +89,7 @@ public class HandleBuilder extends JavacAnnotationHandler<Builder> {
 		JCExpression type;
 		Name rawName;
 		Name name;
+		Name builderFieldName;
 		Name nameOfDefaultProvider;
 		Name nameOfSetFlag;
 		SingularData singularData;
@@ -174,6 +175,7 @@ public class HandleBuilder extends JavacAnnotationHandler<Builder> {
 				BuilderFieldData bfd = new BuilderFieldData();
 				bfd.rawName = fd.name;
 				bfd.name = removePrefixFromField(fieldNode);
+				bfd.builderFieldName = bfd.name;
 				bfd.annotations = findCopyableAnnotations(fieldNode);
 				bfd.type = fd.vartype;
 				bfd.singularData = getSingularData(fieldNode);
@@ -200,6 +202,7 @@ public class HandleBuilder extends JavacAnnotationHandler<Builder> {
 				if (isDefault != null) {
 					bfd.nameOfDefaultProvider = parent.toName("$default$" + bfd.name);
 					bfd.nameOfSetFlag = parent.toName(bfd.name + "$set");
+					bfd.builderFieldName = parent.toName(bfd.name + "$value");
 					JCMethodDecl md = generateDefaultProvider(bfd.nameOfDefaultProvider, fieldNode, td.typarams);
 					recursiveSetGeneratedBy(md, ast, annotationNode.getContext());
 					if (md != null) injectMethod(tdParent, md);
@@ -360,6 +363,7 @@ public class HandleBuilder extends JavacAnnotationHandler<Builder> {
 				
 				JCVariableDecl raw = (JCVariableDecl) param.get();
 				bfd.name = raw.name;
+				bfd.builderFieldName = bfd.name;
 				bfd.rawName = raw.name;
 				bfd.annotations = findCopyableAnnotations(param);
 				bfd.type = raw.vartype;
@@ -628,17 +632,17 @@ public class HandleBuilder extends JavacAnnotationHandler<Builder> {
 		
 		for (BuilderFieldData bfd : builderFields) {
 			if (bfd.singularData != null && bfd.singularData.getSingularizer() != null) {
-				bfd.singularData.getSingularizer().appendBuildCode(bfd.singularData, type, source, statements, bfd.name, "this");
+				bfd.singularData.getSingularizer().appendBuildCode(bfd.singularData, type, source, statements, bfd.builderFieldName, "this");
 			}
 		}
 		
 		ListBuffer<JCExpression> args = new ListBuffer<JCExpression>();
 		for (BuilderFieldData bfd : builderFields) {
 			if (bfd.nameOfSetFlag != null) {
-				statements.append(maker.VarDef(maker.Modifiers(0L), bfd.name, cloneType(maker, bfd.type, source, tdParent.getContext()), maker.Select(maker.Ident(type.toName("this")), bfd.name)));
-				statements.append(maker.If(maker.Unary(CTC_NOT, maker.Ident(bfd.nameOfSetFlag)), maker.Exec(maker.Assign(maker.Ident(bfd.name),maker.Apply(typeParameterNames(maker, ((JCClassDecl) tdParent.get()).typarams), maker.Select(maker.Ident(((JCClassDecl) tdParent.get()).name), bfd.nameOfDefaultProvider), List.<JCExpression>nil()))), null));
+				statements.append(maker.VarDef(maker.Modifiers(0L), bfd.builderFieldName, cloneType(maker, bfd.type, source, tdParent.getContext()), maker.Select(maker.Ident(type.toName("this")), bfd.builderFieldName)));
+				statements.append(maker.If(maker.Unary(CTC_NOT, maker.Ident(bfd.nameOfSetFlag)), maker.Exec(maker.Assign(maker.Ident(bfd.builderFieldName), maker.Apply(typeParameterNames(maker, ((JCClassDecl) tdParent.get()).typarams), maker.Select(maker.Ident(((JCClassDecl) tdParent.get()).name), bfd.nameOfDefaultProvider), List.<JCExpression>nil()))), null));
 			}
-			args.append(maker.Ident(bfd.name));
+			args.append(maker.Ident(bfd.builderFieldName));
 		}
 		
 		if (addCleaning) {
@@ -715,13 +719,13 @@ public class HandleBuilder extends JavacAnnotationHandler<Builder> {
 				JavacNode field = null, setFlag = null;
 				for (JavacNode exists : existing) {
 					Name n = ((JCVariableDecl) exists.get()).name;
-					if (n.equals(bfd.name)) field = exists;
+					if (n.equals(bfd.builderFieldName)) field = exists;
 					if (n.equals(bfd.nameOfSetFlag)) setFlag = exists;
 				}
 				JavacTreeMaker maker = builderType.getTreeMaker();
 				if (field == null) {
 					JCModifiers mods = maker.Modifiers(Flags.PRIVATE);
-					JCVariableDecl newField = maker.VarDef(mods, bfd.name, cloneType(maker, bfd.type, source, builderType.getContext()), null);
+					JCVariableDecl newField = maker.VarDef(mods, bfd.builderFieldName, cloneType(maker, bfd.type, source, builderType.getContext()), null);
 					field = injectFieldAndMarkGenerated(builderType, newField);
 					generated.add(newField);
 				}
@@ -740,13 +744,13 @@ public class HandleBuilder extends JavacAnnotationHandler<Builder> {
 	public void makeSetterMethodsForBuilder(JavacNode builderType, BuilderFieldData fieldNode, JavacNode source, boolean fluent, boolean chain, AccessLevel access) {
 		boolean deprecate = isFieldDeprecated(fieldNode.originalFieldNode);
 		if (fieldNode.singularData == null || fieldNode.singularData.getSingularizer() == null) {
-			makeSimpleSetterMethodForBuilder(builderType, deprecate, fieldNode.createdFields.get(0), fieldNode.nameOfSetFlag, source, fluent, chain, fieldNode.annotations, fieldNode.originalFieldNode, access);
+			makeSimpleSetterMethodForBuilder(builderType, deprecate, fieldNode.createdFields.get(0), fieldNode.name, fieldNode.nameOfSetFlag, source, fluent, chain, fieldNode.annotations, fieldNode.originalFieldNode, access);
 		} else {
 			fieldNode.singularData.getSingularizer().generateMethods(fieldNode.singularData, deprecate, builderType, source.get(), fluent, chain, access);
 		}
 	}
 	
-	private void makeSimpleSetterMethodForBuilder(JavacNode builderType, boolean deprecate, JavacNode fieldNode, Name nameOfSetFlag, JavacNode source, boolean fluent, boolean chain, List<JCAnnotation> annosOnParam, JavacNode originalFieldNode, AccessLevel access) {
+	private void makeSimpleSetterMethodForBuilder(JavacNode builderType, boolean deprecate, JavacNode fieldNode, Name paramName, Name nameOfSetFlag, JavacNode source, boolean fluent, boolean chain, List<JCAnnotation> annosOnParam, JavacNode originalFieldNode, AccessLevel access) {
 		Name fieldName = ((JCVariableDecl) fieldNode.get()).name;
 		
 		for (JavacNode child : builderType.down()) {
@@ -756,12 +760,12 @@ public class HandleBuilder extends JavacAnnotationHandler<Builder> {
 			if (existingName.equals(fieldName) && !isTolerate(fieldNode, methodDecl)) return;
 		}
 		
-		String setterName = fluent ? fieldNode.getName() : HandlerUtil.buildAccessorName("set", fieldNode.getName());
+		String setterName = fluent ? paramName.toString() : HandlerUtil.buildAccessorName("set", paramName.toString());
 		
 		JavacTreeMaker maker = fieldNode.getTreeMaker();
 		
 		List<JCAnnotation> methodAnns = JavacHandlerUtil.findCopyableToSetterAnnotations(originalFieldNode);
-		JCMethodDecl newMethod = HandleSetter.createSetter(toJavacModifier(access), deprecate, fieldNode, maker, setterName, nameOfSetFlag, chain, source, methodAnns, annosOnParam);
+		JCMethodDecl newMethod = HandleSetter.createSetter(toJavacModifier(access), deprecate, fieldNode, maker, setterName, paramName, nameOfSetFlag, chain, source, methodAnns, annosOnParam);
 		recursiveSetGeneratedBy(newMethod, source.get(), builderType.getContext());
 		copyJavadoc(originalFieldNode, newMethod, CopyJavadoc.SETTER);
 		
diff --git a/src/core/lombok/javac/handlers/HandleConstructor.java b/src/core/lombok/javac/handlers/HandleConstructor.java
index e0456782..096963f4 100644
--- a/src/core/lombok/javac/handlers/HandleConstructor.java
+++ b/src/core/lombok/javac/handlers/HandleConstructor.java
@@ -342,7 +342,7 @@ public class HandleConstructor {
 			JCVariableDecl param = maker.VarDef(maker.Modifiers(flags, copyableAnnotations), fieldName, field.vartype, null);
 			params.append(param);
 			if (hasNonNullAnnotations(fieldNode)) {
-				JCStatement nullCheck = generateNullCheck(maker, fieldNode, param, source);
+				JCStatement nullCheck = generateNullCheck(maker, param, source);
 				if (nullCheck != null) nullChecks.append(nullCheck);
 			}
 			JCFieldAccess thisX = maker.Select(maker.Ident(fieldNode.toName("this")), rawName);
diff --git a/src/core/lombok/javac/handlers/HandleSetter.java b/src/core/lombok/javac/handlers/HandleSetter.java
index 5482cccc..cd8b5d1c 100644
--- a/src/core/lombok/javac/handlers/HandleSetter.java
+++ b/src/core/lombok/javac/handlers/HandleSetter.java
@@ -203,10 +203,10 @@ public class HandleSetter extends JavacAnnotationHandler<Setter> {
 	public static JCMethodDecl createSetter(long access, JavacNode field, JavacTreeMaker treeMaker, JavacNode source, List<JCAnnotation> onMethod, List<JCAnnotation> onParam) {
 		String setterName = toSetterName(field);
 		boolean returnThis = shouldReturnThis(field);
-		return createSetter(access, false, field, treeMaker, setterName, null, returnThis, source, onMethod, onParam);
+		return createSetter(access, false, field, treeMaker, setterName, null, null, returnThis, source, onMethod, onParam);
 	}
 	
-	public static JCMethodDecl createSetter(long access, boolean deprecate, JavacNode field, JavacTreeMaker treeMaker, String setterName, Name booleanFieldToSet, boolean shouldReturnThis, JavacNode source, List<JCAnnotation> onMethod, List<JCAnnotation> onParam) {
+	public static JCMethodDecl createSetter(long access, boolean deprecate, JavacNode field, JavacTreeMaker treeMaker, String setterName, Name paramName, Name booleanFieldToSet, boolean shouldReturnThis, JavacNode source, List<JCAnnotation> onMethod, List<JCAnnotation> onParam) {
 		JCExpression returnType = null;
 		JCReturn returnStatement = null;
 		if (shouldReturnThis) {
@@ -214,16 +214,17 @@ public class HandleSetter extends JavacAnnotationHandler<Setter> {
 			returnStatement = treeMaker.Return(treeMaker.Ident(field.toName("this")));
 		}
 		
-		return createSetter(access, deprecate, field, treeMaker, setterName, booleanFieldToSet, returnType, returnStatement, source, onMethod, onParam);
+		return createSetter(access, deprecate, field, treeMaker, setterName, paramName, booleanFieldToSet, returnType, returnStatement, source, onMethod, onParam);
 	}
 	
-	public static JCMethodDecl createSetter(long access, boolean deprecate, JavacNode field, JavacTreeMaker treeMaker, String setterName, Name booleanFieldToSet, JCExpression methodType, JCStatement returnStatement, JavacNode source, List<JCAnnotation> onMethod, List<JCAnnotation> onParam) {
+	public static JCMethodDecl createSetter(long access, boolean deprecate, JavacNode field, JavacTreeMaker treeMaker, String setterName, Name paramName, Name booleanFieldToSet, JCExpression methodType, JCStatement returnStatement, JavacNode source, List<JCAnnotation> onMethod, List<JCAnnotation> onParam) {
 		if (setterName == null) return null;
 		
 		JCVariableDecl fieldDecl = (JCVariableDecl) field.get();
+		if (paramName == null) paramName = fieldDecl.name;
 		
 		JCExpression fieldRef = createFieldAccessor(treeMaker, field, FieldAccess.ALWAYS_FIELD);
-		JCAssign assign = treeMaker.Assign(fieldRef, treeMaker.Ident(fieldDecl.name));
+		JCAssign assign = treeMaker.Assign(fieldRef, treeMaker.Ident(paramName));
 		
 		ListBuffer<JCStatement> statements = new ListBuffer<JCStatement>();
 		List<JCAnnotation> copyableAnnotations = findCopyableAnnotations(field);
@@ -232,12 +233,12 @@ public class HandleSetter extends JavacAnnotationHandler<Setter> {
 		List<JCAnnotation> annsOnParam = copyAnnotations(onParam).appendList(copyableAnnotations);
 		
 		long flags = JavacHandlerUtil.addFinalIfNeeded(Flags.PARAMETER, field.getContext());
-		JCVariableDecl param = treeMaker.VarDef(treeMaker.Modifiers(flags, annsOnParam), fieldDecl.name, fieldDecl.vartype, null);
+		JCVariableDecl param = treeMaker.VarDef(treeMaker.Modifiers(flags, annsOnParam), paramName, fieldDecl.vartype, null);
 		
 		if (!hasNonNullAnnotations(field) && !hasNonNullAnnotations(field, onParam)) {
 			statements.append(treeMaker.Exec(assign));
 		} else {
-			JCStatement nullCheck = generateNullCheck(treeMaker, field, source);
+			JCStatement nullCheck = generateNullCheck(treeMaker, fieldDecl.vartype, paramName, source);
 			if (nullCheck != null) statements.append(nullCheck);
 			statements.append(treeMaker.Exec(assign));
 		}
@@ -267,7 +268,7 @@ public class HandleSetter extends JavacAnnotationHandler<Setter> {
 		}
 		
 		JCMethodDecl decl = recursiveSetGeneratedBy(treeMaker.MethodDef(treeMaker.Modifiers(access, annsOnMethod), methodName, methodType,
-				methodGenericParams, parameters, throwsClauses, methodBody, annotationMethodDefaultValue), source.get(), field.getContext());
+			methodGenericParams, parameters, throwsClauses, methodBody, annotationMethodDefaultValue), source.get(), field.getContext());
 		copyJavadoc(field, decl, CopyJavadoc.SETTER);
 		return decl;
 	}
diff --git a/src/core/lombok/javac/handlers/HandleSuperBuilder.java b/src/core/lombok/javac/handlers/HandleSuperBuilder.java
index 9120fa07..a5c492a1 100644
--- a/src/core/lombok/javac/handlers/HandleSuperBuilder.java
+++ b/src/core/lombok/javac/handlers/HandleSuperBuilder.java
@@ -142,6 +142,7 @@ public class HandleSuperBuilder extends JavacAnnotationHandler<SuperBuilder> {
 			BuilderFieldData bfd = new BuilderFieldData();
 			bfd.rawName = fd.name;
 			bfd.name = removePrefixFromField(fieldNode);
+			bfd.builderFieldName = bfd.name;
 			bfd.annotations = findCopyableAnnotations(fieldNode);
 			bfd.type = fd.vartype;
 			bfd.singularData = getSingularData(fieldNode);
@@ -166,7 +167,7 @@ public class HandleSuperBuilder extends JavacAnnotationHandler<SuperBuilder> {
 			if (isDefault != null) {
 				bfd.nameOfDefaultProvider = tdParent.toName("$default$" + bfd.name);
 				bfd.nameOfSetFlag = tdParent.toName(bfd.name + "$set");
-				bfd.nameOfSetFlag = tdParent.toName(bfd.name + "$set");
+				bfd.builderFieldName = tdParent.toName(bfd.name + "$value");
 				JCMethodDecl md = HandleBuilder.generateDefaultProvider(bfd.nameOfDefaultProvider, fieldNode, td.typarams);
 				recursiveSetGeneratedBy(md, ast, annotationNode.getContext());
 				if (md != null) injectMethod(tdParent, md);
@@ -493,10 +494,10 @@ public class HandleSuperBuilder extends JavacAnnotationHandler<SuperBuilder> {
 		for (BuilderFieldData bfd : builderFields) {
 			JCExpression rhs;
 			if (bfd.singularData != null && bfd.singularData.getSingularizer() != null) {
-				bfd.singularData.getSingularizer().appendBuildCode(bfd.singularData, bfd.originalFieldNode, bfd.type, statements, bfd.name, "b");
+				bfd.singularData.getSingularizer().appendBuildCode(bfd.singularData, bfd.originalFieldNode, bfd.type, statements, bfd.builderFieldName, "b");
 				rhs = maker.Ident(bfd.singularData.getPluralName());
 			} else {
-				rhs = maker.Select(maker.Ident(builderVariableName), bfd.name);
+				rhs = maker.Select(maker.Ident(builderVariableName), bfd.builderFieldName);
 			}
 			JCFieldAccess fieldInThis = maker.Select(maker.Ident(typeNode.toName("this")), bfd.rawName);
 			
@@ -829,13 +830,13 @@ public class HandleSuperBuilder extends JavacAnnotationHandler<SuperBuilder> {
 				JavacNode field = null, setFlag = null;
 				for (JavacNode exists : existing) {
 					Name n = ((JCVariableDecl) exists.get()).name;
-					if (n.equals(bfd.name)) field = exists;
+					if (n.equals(bfd.builderFieldName)) field = exists;
 					if (n.equals(bfd.nameOfSetFlag)) setFlag = exists;
 				}
 				JavacTreeMaker maker = builderType.getTreeMaker();
 				if (field == null) {
 					JCModifiers mods = maker.Modifiers(Flags.PRIVATE);
-					JCVariableDecl newField = maker.VarDef(mods, bfd.name, cloneType(maker, bfd.type, source, builderType.getContext()), null);
+					JCVariableDecl newField = maker.VarDef(mods, bfd.builderFieldName, cloneType(maker, bfd.type, source, builderType.getContext()), null);
 					field = injectFieldAndMarkGenerated(builderType, newField);
 					generated.add(newField);
 				}
@@ -863,13 +864,13 @@ public class HandleSuperBuilder extends JavacAnnotationHandler<SuperBuilder> {
 		}};
 		
 		if (fieldNode.singularData == null || fieldNode.singularData.getSingularizer() == null) {
-			generateSimpleSetterMethodForBuilder(builderType, deprecate, fieldNode.createdFields.get(0), fieldNode.nameOfSetFlag, source, true, returnTypeMaker.make(), returnStatementMaker.make(), fieldNode.annotations, fieldNode.originalFieldNode);
+			generateSimpleSetterMethodForBuilder(builderType, deprecate, fieldNode.createdFields.get(0), fieldNode.name, fieldNode.nameOfSetFlag, source, true, returnTypeMaker.make(), returnStatementMaker.make(), fieldNode.annotations, fieldNode.originalFieldNode);
 		} else {
 			fieldNode.singularData.getSingularizer().generateMethods(fieldNode.singularData, deprecate, builderType, source.get(), true, returnTypeMaker, returnStatementMaker, AccessLevel.PUBLIC);
 		}
 	}
 	
-	private void generateSimpleSetterMethodForBuilder(JavacNode builderType, boolean deprecate, JavacNode fieldNode, Name nameOfSetFlag, JavacNode source, boolean fluent, JCExpression returnType, JCStatement returnStatement, List<JCAnnotation> annosOnParam, JavacNode originalFieldNode) {
+	private void generateSimpleSetterMethodForBuilder(JavacNode builderType, boolean deprecate, JavacNode fieldNode, Name paramName, Name nameOfSetFlag, JavacNode source, boolean fluent, JCExpression returnType, JCStatement returnStatement, List<JCAnnotation> annosOnParam, JavacNode originalFieldNode) {
 		Name fieldName = ((JCVariableDecl) fieldNode.get()).name;
 		
 		for (JavacNode child : builderType.down()) {
@@ -879,12 +880,12 @@ public class HandleSuperBuilder extends JavacAnnotationHandler<SuperBuilder> {
 			if (existingName.equals(fieldName) && !isTolerate(fieldNode, methodDecl)) return;
 		}
 		
-		String setterName = fluent ? fieldNode.getName() : HandlerUtil.buildAccessorName("set", fieldNode.getName());
+		String setterName = fluent ? paramName.toString() : HandlerUtil.buildAccessorName("set", paramName.toString());
 		
 		JavacTreeMaker maker = fieldNode.getTreeMaker();
 		
 		List<JCAnnotation> methodAnns = JavacHandlerUtil.findCopyableToSetterAnnotations(originalFieldNode);
-		JCMethodDecl newMethod = HandleSetter.createSetter(Flags.PUBLIC, deprecate, fieldNode, maker, setterName, nameOfSetFlag, returnType, returnStatement, source, methodAnns, annosOnParam);
+		JCMethodDecl newMethod = HandleSetter.createSetter(Flags.PUBLIC, deprecate, fieldNode, maker, setterName, paramName, nameOfSetFlag, returnType, returnStatement, source, methodAnns, annosOnParam);
 		
 		injectMethod(builderType, newMethod);
 	}
diff --git a/src/core/lombok/javac/handlers/JavacHandlerUtil.java b/src/core/lombok/javac/handlers/JavacHandlerUtil.java
index 6fa70ff3..76f3c1ad 100644
--- a/src/core/lombok/javac/handlers/JavacHandlerUtil.java
+++ b/src/core/lombok/javac/handlers/JavacHandlerUtil.java
@@ -1516,34 +1516,40 @@ public class JavacHandlerUtil {
 	 * variable name as message.
 	 */
 	public static JCStatement generateNullCheck(JavacTreeMaker maker, JavacNode variable, JavacNode source) {
-		return generateNullCheck(maker, variable, (JCVariableDecl) variable.get(), source);
+		return generateNullCheck(maker, (JCVariableDecl) variable.get(), source);
 	}
-
+	
 	/**
-	 * Generates a new statement that checks if the given variable is null, and if so, throws a configured exception with the
-	 * variable name as message. 
-	 * 
-	 * This is a special case method reserved for use when the provided declaration differs from the
-	 * variable's declaration, i.e. in a constructor or setter where the local parameter is named the same but with the prefix
-	 * stripped as a result of @Accessors.prefix.
+	 * Generates a new statement that checks if the given local is null, and if so, throws a configured exception with the
+	 * local variable name as message. 
 	 */
-	public static JCStatement generateNullCheck(JavacTreeMaker maker, JavacNode variable, JCVariableDecl varDecl, JavacNode source) {
+	public static JCStatement generateNullCheck(JavacTreeMaker maker, JCExpression typeNode, Name varName, JavacNode source) {
 		NullCheckExceptionType exceptionType = source.getAst().readConfiguration(ConfigurationKeys.NON_NULL_EXCEPTION_TYPE);
 		if (exceptionType == null) exceptionType = NullCheckExceptionType.NULL_POINTER_EXCEPTION;
 		
-		if (isPrimitive(varDecl.vartype)) return null;
-		Name fieldName = varDecl.name;
-		
-		JCLiteral message = maker.Literal(exceptionType.toExceptionMessage(fieldName.toString()));
+		if (isPrimitive(typeNode)) return null;
+		JCLiteral message = maker.Literal(exceptionType.toExceptionMessage(varName.toString()));
 		if (exceptionType == NullCheckExceptionType.ASSERTION) {
-			return maker.Assert(maker.Binary(CTC_NOT_EQUAL, maker.Ident(fieldName), maker.Literal(CTC_BOT, null)), message);
+			return maker.Assert(maker.Binary(CTC_NOT_EQUAL, maker.Ident(varName), maker.Literal(CTC_BOT, null)), message);
 		}
 		
-		JCExpression exType = genTypeRef(variable, exceptionType.getExceptionType());
+		JCExpression exType = genTypeRef(source, exceptionType.getExceptionType());
 		JCExpression exception = maker.NewClass(null, List.<JCExpression>nil(), exType, List.<JCExpression>of(message), null);
 		JCStatement throwStatement = maker.Throw(exception);
 		JCBlock throwBlock = maker.Block(0, List.of(throwStatement));
-		return maker.If(maker.Binary(CTC_EQUAL, maker.Ident(fieldName), maker.Literal(CTC_BOT, null)), throwBlock, null);
+		return maker.If(maker.Binary(CTC_EQUAL, maker.Ident(varName), maker.Literal(CTC_BOT, null)), throwBlock, null);
+	}
+	
+	/**
+	 * Generates a new statement that checks if the given variable is null, and if so, throws a configured exception with the
+	 * variable name as message. 
+	 * 
+	 * This is a special case method reserved for use when the provided declaration differs from the
+	 * variable's declaration, i.e. in a constructor or setter where the local parameter is named the same but with the prefix
+	 * stripped as a result of @Accessors.prefix.
+	 */
+	public static JCStatement generateNullCheck(JavacTreeMaker maker, JCVariableDecl varDecl, JavacNode source) {
+		return generateNullCheck(maker, varDecl.vartype, varDecl.name, source);
 	}
 	
 	/**