Polish for Exception message punctuation cleanup.

Closes #2603.

src/main/java/org/springframework/data/spel/EvaluationContextExtensionInformation.java

@@ -72,7 +72,7 @@ class EvaluationContextExtensionInformation {
 	 */
 	public EvaluationContextExtensionInformation(Class<? extends EvaluationContextExtension> type) {
 
-		Assert.notNull(type, "Extension type must not be null!");
+		Assert.notNull(type, "Extension type must not be null");
 
 		Class<?> rootObjectType = org.springframework.data.util.ReflectionUtils.findRequiredMethod(type, "getRootObject")
 				.getReturnType();
@@ -154,7 +154,7 @@ class EvaluationContextExtensionInformation {
 		 */
 		public ExtensionTypeInformation(Class<? extends EvaluationContextExtension> type) {
 
-			Assert.notNull(type, "Extension type must not be null!");
+			Assert.notNull(type, "Extension type must not be null");
 
 			this.functions = discoverDeclaredFunctions(type);
 			this.properties = discoverDeclaredProperties(type);
@@ -256,7 +256,7 @@ class EvaluationContextExtensionInformation {
 		 */
 		RootObjectInformation(Class<?> type) {
 
-			Assert.notNull(type, "Type must not be null!");
+			Assert.notNull(type, "Type must not be null");
 
 			this.accessors = new HashMap<>();
 			this.methods = new Methods();

src/main/java/org/springframework/data/spel/ExtensionAwareEvaluationContextProvider.java

@@ -209,7 +209,7 @@ public class ExtensionAwareEvaluationContextProvider implements EvaluationContex
 		 */
 		public ExtensionAwarePropertyAccessor(Collection<? extends EvaluationContextExtension> extensions) {
 
-			Assert.notNull(extensions, "Extensions must not be null!");
+			Assert.notNull(extensions, "Extensions must not be null");
 
 			this.adapters = toAdapters(extensions);
 			this.adapterMap = adapters.stream()//
@@ -368,8 +368,8 @@ public class ExtensionAwareEvaluationContextProvider implements EvaluationContex
 		public EvaluationContextExtensionAdapter(EvaluationContextExtension extension,
 				EvaluationContextExtensionInformation information) {
 
-			Assert.notNull(extension, "Extension must not be null!");
-			Assert.notNull(information, "Extension information must not be null!");
+			Assert.notNull(extension, "Extension must not be null");
+			Assert.notNull(information, "Extension information must not be null");
 
 			Optional<Object> target = Optional.ofNullable(extension.getRootObject());
 			EvaluationContextExtensionInformation.ExtensionTypeInformation extensionTypeInformation = information

src/main/java/org/springframework/data/spel/Functions.java

@@ -39,7 +39,7 @@ import org.springframework.util.MultiValueMap;
 class Functions {
 
 	private static final String MESSAGE_TEMPLATE = "There are multiple matching methods of name '%s' for parameter types (%s), but no "
-			+ "exact match. Make sure to provide only one matching overload or one with exactly those types.";
+			+ "exact match; Make sure to provide only one matching overload or one with exactly those types";
 
 	private final MultiValueMap<String, Function> functions = new LinkedMultiValueMap<>();
 

src/main/java/org/springframework/data/spel/spi/Function.java

@@ -51,7 +51,7 @@ public class Function {
 
 		this(method, null);
 
-		Assert.isTrue(Modifier.isStatic(method.getModifiers()), "Method must be static!");
+		Assert.isTrue(Modifier.isStatic(method.getModifiers()), "Method must be static");
 	}
 
 	/**
@@ -62,9 +62,9 @@ public class Function {
 	 */
 	public Function(Method method, @Nullable Object target) {
 
-		Assert.notNull(method, "Method must not be null!");
+		Assert.notNull(method, "Method must not be null");
 		Assert.isTrue(target != null || Modifier.isStatic(method.getModifiers()),
-				"Method must either be static or a non-static one with a target object!");
+				"Method must either be static or a non-static one with a target object");
 
 		this.method = method;
 		this.target = target;