Fix and improve Javadoc in spring-r2dbc

See gh-28796

spring-r2dbc/src/main/java/org/springframework/r2dbc/connection/R2dbcTransactionManager.java

@@ -107,7 +107,7 @@ public class R2dbcTransactionManager extends AbstractReactiveTransactionManager
 
 	/**
 	 * Set the R2DBC {@link ConnectionFactory} that this instance should manage transactions for.
-	 * <p>This will typically be a locally defined {@code ConnectionFactory}, for example an connection pool.
+	 * <p>This will typically be a locally defined {@code ConnectionFactory}, for example a connection pool.
 	 * <p><b>The {@code ConnectionFactory} passed in here needs to return independent {@link Connection}s.</b>
 	 * The {@code Connection}s may come from a pool (the typical case), but the {@code ConnectionFactory}
 	 * must not return scoped {@code Connection}s or the like.
@@ -138,7 +138,7 @@ public class R2dbcTransactionManager extends AbstractReactiveTransactionManager
 
 	/**
 	 * Specify whether to enforce the read-only nature of a transaction (as indicated by
-	 * {@link TransactionDefinition#isReadOnly()} through an explicit statement on the
+	 * {@link TransactionDefinition#isReadOnly()}) through an explicit statement on the
 	 * transactional connection: "SET TRANSACTION READ ONLY" as understood by Oracle,
 	 * MySQL and Postgres.
 	 * <p>The exact treatment, including any SQL statement executed on the connection,

spring-r2dbc/src/main/java/org/springframework/r2dbc/connection/init/ScriptUtils.java

@@ -166,9 +166,9 @@ public abstract class ScriptUtils {
 	 * @param resource the resource (potentially associated with a specific encoding)
 	 * to load the SQL script from
 	 * @param dataBufferFactory the factory to create data buffers with
-	 * @param continueOnError whether or not to continue without throwing an exception
+	 * @param continueOnError whether to continue without throwing an exception
 	 * in the event of an error
-	 * @param ignoreFailedDrops whether or not to continue in the event of specifically
+	 * @param ignoreFailedDrops whether to continue in the event of specifically
 	 * an error on a {@code DROP} statement
 	 * @param commentPrefix the prefix that identifies single-line comments in the
 	 * SQL script (typically "--")
@@ -207,9 +207,9 @@ public abstract class ScriptUtils {
 	 * @param resource the resource (potentially associated with a specific encoding)
 	 * to load the SQL script from
 	 * @param dataBufferFactory the factory to create data buffers with
-	 * @param continueOnError whether or not to continue without throwing an exception
+	 * @param continueOnError whether to continue without throwing an exception
 	 * in the event of an error
-	 * @param ignoreFailedDrops whether or not to continue in the event of specifically
+	 * @param ignoreFailedDrops whether to continue in the event of specifically
 	 * an error on a {@code DROP} statement
 	 * @param commentPrefixes the prefixes that identify single-line comments in the
 	 * SQL script (typically "--")

spring-r2dbc/src/main/java/org/springframework/r2dbc/core/ConnectionAccessor.java

@@ -45,7 +45,7 @@ public interface ConnectionAccessor {
 	 * Execute a callback {@link Function} within a {@link Connection} scope.
 	 * The function is responsible for creating a {@link Mono}. The connection
 	 * is released after the {@link Mono} terminates (or the subscription
-	 * is cancelled). Connection resources must not be passed outside of the
+	 * is cancelled). Connection resources must not be passed outside the
 	 * {@link Function} closure, otherwise resources may get defunct.
 	 * @param action the callback object that specifies the connection action
 	 * @return the resulting {@link Mono}
@@ -56,7 +56,7 @@ public interface ConnectionAccessor {
 	 * Execute a callback {@link Function} within a {@link Connection} scope.
 	 * The function is responsible for creating a {@link Flux}. The connection
 	 * is released after the {@link Flux} terminates (or the subscription
-	 * is cancelled). Connection resources must not be passed outside of the
+	 * is cancelled). Connection resources must not be passed outside the
 	 * {@link Function} closure, otherwise resources may get defunct.
 	 * @param action the callback object that specifies the connection action
 	 * @return the resulting {@link Flux}

spring-r2dbc/src/main/java/org/springframework/r2dbc/core/Parameter.java

@@ -100,7 +100,7 @@ public final class Parameter {
 	}
 
 	/**
-	 * Return whether this {@link Parameter} has a empty.
+	 * Return whether this {@link Parameter} has an empty value.
 	 * @return {@code true} if {@link #getValue()} is {@code null}
 	 */
 	public boolean isEmpty() {

spring-r2dbc/src/main/java/org/springframework/r2dbc/core/ParsedSql.java

@@ -69,7 +69,7 @@ class ParsedSql {
 	}
 
 	/**
-	 * Return all of the parameters (bind variables) in the parsed SQL statement.
+	 * Return all the parameters (bind variables) in the parsed SQL statement.
 	 * Repeated occurrences of the same parameter name are included here.
 	 */
 	List<String> getParameterNames() {
@@ -81,7 +81,7 @@ class ParsedSql {
 	 * @param parameterPosition the position of the parameter
 	 * (as index in the parameter names List)
 	 * @return the start index and end index, combined into
-	 * a int array of length 2
+	 * an int array of length 2
 	 */
 	int[] getParameterIndexes(int parameterPosition) {
 		return this.parameterIndexes.get(parameterPosition);
@@ -104,21 +104,21 @@ class ParsedSql {
 	}
 
 	/**
-	 * Set the count of all of the unnamed parameters in the SQL statement.
+	 * Set the count of all the unnamed parameters in the SQL statement.
 	 */
 	void setUnnamedParameterCount(int unnamedParameterCount) {
 		this.unnamedParameterCount = unnamedParameterCount;
 	}
 
 	/**
-	 * Return the count of all of the unnamed parameters in the SQL statement.
+	 * Return the count of all the unnamed parameters in the SQL statement.
 	 */
 	int getUnnamedParameterCount() {
 		return this.unnamedParameterCount;
 	}
 
 	/**
-	 * Set the total count of all of the parameters in the SQL statement.
+	 * Set the total count of all the parameters in the SQL statement.
 	 * Repeated occurrences of the same parameter name do count here.
 	 */
 	void setTotalParameterCount(int totalParameterCount) {
@@ -126,7 +126,7 @@ class ParsedSql {
 	}
 
 	/**
-	 * Return the total count of all of the parameters in the SQL statement.
+	 * Return the total count of all the parameters in the SQL statement.
 	 * Repeated occurrences of the same parameter name do count here.
 	 */
 	int getTotalParameterCount() {

spring-r2dbc/src/main/java/org/springframework/r2dbc/core/StatementFilterFunction.java

@@ -48,7 +48,7 @@ public interface StatementFilterFunction {
 	/**
 	 * Apply this filter to the given {@link Statement} and {@link ExecuteFunction}.
 	 * <p>The given {@link ExecuteFunction} represents the next entity in the chain,
-	 * to be invoked via {@link ExecuteFunction#execute(Statement)} invoked} in
+	 * to be invoked via {@link ExecuteFunction#execute(Statement)} in
 	 * order to proceed with the execution, or not invoked to shortcut the chain.
 	 * @param statement the current {@link Statement}
 	 * @param next the next execute function in the chain

spring-r2dbc/src/main/java/org/springframework/r2dbc/core/binding/AnonymousBindMarkers.java

@@ -24,7 +24,7 @@ import java.util.concurrent.atomic.AtomicIntegerFieldUpdater;
  * the placeholder. This implementation creates indexed bind markers using
  * an anonymous placeholder that correlates with an index.
  *
- * <p>Note: Anonymous bind markers are problematic because the have to appear
+ * <p>Note: Anonymous bind markers are problematic because they have to appear
  * in generated SQL in the same order they get generated. This might cause
  * challenges in the future with complex generate statements. For example those
  * containing subselects which limit the freedom of arranging bind markers.

spring-r2dbc/src/main/java/org/springframework/r2dbc/core/binding/Bindings.java

@@ -167,7 +167,7 @@ public class Bindings implements Iterable<Bindings.Binding> {
 
 		/**
 		 * Return whether the binding is empty.
-		 * @return {@code true} if this is is a {@code NULL} binding
+		 * @return {@code true} if this is a {@code NULL} binding
 		 */
 		public boolean isNull() {
 			return !hasValue();

spring-r2dbc/src/test/java/org/springframework/r2dbc/core/DefaultDatabaseClientUnitTests.java

@@ -428,7 +428,7 @@ class DefaultDatabaseClientUnitTests {
 	}
 
 	/**
-	 * Mocks a {@link Result} with a single column "name" and a single row if a non null
+	 * Mocks a {@link Result} with a single column "name" and a single row if a non-null
 	 * row is provided.
 	 */
 	private MockResult mockSingleColumnResult(@Nullable MockRow.Builder row) {