Fix common typos and grammatical mistakes

Closes gh-36471

spring-expression/src/main/java/org/springframework/expression/TypeLocator.java

@@ -17,7 +17,7 @@
 package org.springframework.expression;
 
 /**
- * Implementers of this interface are expected to be able to locate types.
+ * Implementors of this interface are expected to be able to locate types.
  *
  * <p>They may use a custom {@link ClassLoader} and/or deal with common package
  * prefixes (for example, {@code java.lang}) however they wish.

spring-expression/src/main/java/org/springframework/expression/spel/support/ReflectiveIndexAccessor.java

@@ -45,7 +45,7 @@ import org.springframework.util.ReflectionUtils;
  *
  * <p>{@code ReflectiveIndexAccessor} also implements {@link CompilableIndexAccessor}
  * in order to support compilation to bytecode for read access. Note, however,
- * that the configured read-method must be invokable via a public class or public
+ * that the configured read-method must be invocable via a public class or public
  * interface for compilation to succeed.
  *
  * <h3>Example</h3>

spring-expression/src/test/java/org/springframework/expression/spel/SetValueTests.java

@@ -310,7 +310,7 @@ class SetValueTests extends AbstractExpressionTests {
 			if (DEBUG) {
 				SpelUtilities.printAbstractSyntaxTree(System.out, e);
 			}
-			assertThat(e.isWritable(context)).as("Expression is not writeable but should be").isTrue();
+			assertThat(e.isWritable(context)).as("Expression is not writable but should be").isTrue();
 			e.setValue(context, value);
 			assertThat(e.getValue(context, expectedType)).as("Retrieved value was not equal to set value").isEqualTo(value);
 		}
@@ -330,7 +330,7 @@ class SetValueTests extends AbstractExpressionTests {
 			if (DEBUG) {
 				SpelUtilities.printAbstractSyntaxTree(System.out, e);
 			}
-			assertThat(e.isWritable(context)).as("Expression is not writeable but should be").isTrue();
+			assertThat(e.isWritable(context)).as("Expression is not writable but should be").isTrue();
 			e.setValue(context, value);
 			assertThat(expectedValue).isEqualTo(e.getValue(context));
 		}

spring-expression/src/test/java/org/springframework/expression/spel/support/ReflectionHelperTests.java

@@ -186,11 +186,11 @@ class ReflectionHelperTests extends AbstractExpressionTests {
 		// Passing (Super) on call to (Sub[]) is not a match
 		checkMatchVarargs(new Class<?>[] {Super.class}, new Class<?>[] {Sub[].class}, tc, null);
 
-		checkMatchVarargs(new Class<?>[] {Unconvertable.class, String.class}, new Class<?>[] {Sub.class, Super[].class}, tc, null);
+		checkMatchVarargs(new Class<?>[] {Unconvertible.class, String.class}, new Class<?>[] {Sub.class, Super[].class}, tc, null);
 
 		checkMatchVarargs(new Class<?>[] {Integer.class, Integer.class, String.class}, new Class<?>[] {String.class, String.class, Super[].class}, tc, null);
 
-		checkMatchVarargs(new Class<?>[] {Unconvertable.class, String.class}, new Class<?>[] {Sub.class, Super[].class}, tc, null);
+		checkMatchVarargs(new Class<?>[] {Unconvertible.class, String.class}, new Class<?>[] {Sub.class, Super[].class}, tc, null);
 
 		checkMatchVarargs(new Class<?>[] {Integer.class, Integer.class, String.class}, new Class<?>[] {String.class, String.class, Super[].class}, tc, null);
 
@@ -519,7 +519,7 @@ class ReflectionHelperTests extends AbstractExpressionTests {
 	}
 
 
-	static class Unconvertable {
+	static class Unconvertible {
 	}