NIFI-15502 Fixed the typos and some of the grammar in the NIFI-API javadocs.

src/main/java/org/apache/nifi/annotation/behavior/RequiresInstanceClassLoading.java

@@ -37,7 +37,7 @@
  *  Example #2 - If PutHDFS referenced an SSLContext and has this flag set to true, then it would include
  *  resources from nifi-hadoop-nar, nifi-hadoop-libraries-nar, and stop before nifi-standard-services-api-nar.
  *
- *  Example #3 - HBaseClientService_1_1_2 does not have this flag set so it defaults to false, and therefore includes
+ *  Example #3 - HBaseClientService_1_1_2 does not have this flag set, so it defaults to false, and therefore includes
  *  only resources from the nifi-hbase-client-service-1_1_2-nar.
  *
  *  NOTE: When this annotation is used it is important to note that each added instance of the component will increase

src/main/java/org/apache/nifi/annotation/behavior/SideEffectFree.java

@@ -26,7 +26,7 @@
 /**
  * Marker annotation a {@link org.apache.nifi.processor.Processor Processor}
  * implementation can use to indicate that its operations on FlowFiles can be
- * safely repeated across process sessions. If a processor has this annotation
+ * safely repeated across process sessions. If a processor has this annotation,
  * and it allows the framework to manage session commit and rollback then the
  * framework may elect to cascade a
  * {@link org.apache.nifi.processor.ProcessSession ProcessSession} given to this

src/main/java/org/apache/nifi/annotation/behavior/SupportsBatching.java

@@ -41,7 +41,7 @@
  * ProcessSession.commit() to ensure data is persisted before deleting the data
  * from a remote source.
  *
- * When the defaultDuration parameter is set, the processor is created with the supplied duration time, which can be adjusted afterwards.
+ * When the defaultDuration parameter is set, the processor is created with the supplied duration time, which can be adjusted afterward.
  * The supplied values can be selected from {@link org.apache.nifi.annotation.behavior.DefaultRunDuration}.
  */
 @Documented

src/main/java/org/apache/nifi/components/AllowableValue.java

@@ -30,7 +30,7 @@ public class AllowableValue implements DescribedValue {
     private final String description;
 
     /**
-     * Constructs a new AllowableValue with the given value and and the same
+     * Constructs a new AllowableValue with the given value and the same
      * display name and no description.
      *
      * @param value that is allowed

src/main/java/org/apache/nifi/components/DescribedValue.java

@@ -32,7 +32,7 @@ public interface DescribedValue {
     String getDisplayName();
 
     /**
-     * @return the proeprty description as a string
+     * @return the property description as a string
      */
     String getDescription();
 }

src/main/java/org/apache/nifi/components/PropertyDescriptor.java

@@ -565,7 +565,7 @@ private boolean isValueAllowed(final String value) {
          *     is used, the input must be a regular file. If <code>identifiesExternalResource(ResourceCardinality.SINGLE, ResourceType.FILE, ResourceType.DIRECTORY)</code> is used, then the input
          *     must be exactly one file OR directory.
          *     </li>
-         *     <li>If the ResourceCardinality is MULTIPLE, the given property value may consist of one or more resources, each separted by a comma and optional white space.</li>
+         *     <li>If the ResourceCardinality is MULTIPLE, the given property value may consist of one or more resources, each separated by a comma and optional white space.</li>
          * </ul>
          * <p>
          * Generally, any property descriptor that makes use of the {@link #dynamicallyModifiesClasspath(boolean)} method to dynamically update its classpath should also
@@ -827,7 +827,7 @@ private static final class ConstrainedSetValidator implements Validator {
          * Constructs a validator that will check if the given value is in the
          * given set.
          *
-         * @param validValues values which are acceptible
+         * @param validValues values which are acceptable
          * @throws NullPointerException if the given validValues is null
          */
         private ConstrainedSetValidator(final Collection<AllowableValue> validValues) {

src/main/java/org/apache/nifi/components/resource/ResourceContext.java

@@ -20,7 +20,7 @@
 import org.apache.nifi.components.PropertyDescriptor;
 
 /**
- * Provides the context in which a Reference Reference is to be evaluated
+ * Provides the context in which a Reference is to be evaluated
  */
 public interface ResourceContext {
     /**

src/main/java/org/apache/nifi/components/resource/ResourceReference.java

@@ -47,7 +47,7 @@ public interface ResourceReference {
     /**
      * Indicates whether or not the resource is accessible. What it means for the resource to be accessible depends on the type of
      * resource. A File resource, for example, might be accessible only if the file exists and is readable, while a URL resource might
-     * always be considered accessible, or might be accesssible only if the existence of the resource can be confirmed.
+     * always be considered accessible, or might be accessible only if the existence of the resource can be confirmed.
      *
      * @return <code>true</code> if the file can be accessed, <code>false</code> otherwise
      */

src/main/java/org/apache/nifi/components/resource/ResourceReferences.java

@@ -51,7 +51,7 @@ public interface ResourceReferences {
      * holds a single ResourceReference, of type DIRECTORY and the referenced directory contains 10 files. Calling {@link #asList()} would
      * return a single ResourceReference. But calling <code>flatten()</code> would return a new ResourceReferences type whose {@link #asList()}
      * method would return 10 ResourceReference objects, each with a ResourceType of FILE. The flatten operation is not recursive, meaning that if
-     * a DIRECTORY is flattened, any sub-directories will be dropped. If the contents of the subdirectories are to be retained, use {@link #flattenRecursively()}
+     * a DIRECTORY is flattened, any subdirectories will be dropped. If the contents of the subdirectories are to be retained, use {@link #flattenRecursively()}
      * instead.
      *
      * @return a flattened ResourceReferences

src/main/java/org/apache/nifi/controller/ConfigurationContext.java

@@ -47,7 +47,7 @@ public interface ConfigurationContext extends PropertyContext {
 
     /**
      * Returns the amount of time, in the given {@link TimeUnit} that will
-     * elapsed between the return of one execution of the
+     * elapse between the return of one execution of the
      * component's <code>onTrigger</code> method and
      * the time at which the method is invoked again. This method will return
      * null if the component does not have a scheduling period (e.g., for ControllerServices)

src/main/java/org/apache/nifi/controller/status/analytics/StatusAnalyticsEngine.java

@@ -21,7 +21,7 @@ public interface StatusAnalyticsEngine {
     /**
      * Retrieve status analytics object for given component
      * @param componentId identifier for component
-     * @return componenet specific status analytics object
+     * @return component specific status analytics object
      */
     StatusAnalytics getStatusAnalytics(String componentId);
 

src/main/java/org/apache/nifi/expression/AttributeExpression.java

@@ -47,8 +47,8 @@ public interface AttributeExpression {
 
     /**
      * Evaluates the expression providing access to additional variables
-     * including the flow file properties such as file size, identifier, etc..
-     * and also all of the flow file attributes.
+     * including the flow file properties such as file size, identifier, etc.
+     * and also all the flow file attributes.
      *
      * @param flowFile to evaluate
      * @return evaluated value
@@ -58,8 +58,8 @@ public interface AttributeExpression {
 
     /**
      * Evaluates the expression providing access to additional variables
-     * including the flow file properties such as file size, identifier, etc..
-     * and also all of the flow file attributes. The resulting value after
+     * including the flow file properties such as file size, identifier, etc.
+     * and also all the flow file attributes. The resulting value after
      * executing any variable substitution and expression evaluation is run
      * through the given decorator and returned.
      *

src/main/java/org/apache/nifi/flow/VersionedProcessor.java

@@ -70,7 +70,7 @@ public void setExecutionNode(String executionNode) {
         this.executionNode = executionNode;
     }
 
-    @Schema(description = "The amout of time that is used when the process penalizes a flowfile.")
+    @Schema(description = "The amount of time that is used when the process penalizes a flowfile.")
     public String getPenaltyDuration() {
         return penaltyDuration;
     }
@@ -97,7 +97,7 @@ public void setBulletinLevel(String bulletinLevel) {
         this.bulletinLevel = bulletinLevel;
     }
 
-    @Schema(description = "The number of tasks that should be concurrently schedule for the processor. If the processor doesn't allow parallol processing then any positive input will be ignored.")
+    @Schema(description = "The number of tasks that should be concurrently schedule for the processor. If the processor doesn't allow parallel processing then any positive input will be ignored.")
     public Integer getConcurrentlySchedulableTaskCount() {
         return concurrentlySchedulableTaskCount;
     }
@@ -106,7 +106,7 @@ public void setConcurrentlySchedulableTaskCount(Integer concurrentlySchedulableT
         this.concurrentlySchedulableTaskCount = concurrentlySchedulableTaskCount;
     }
 
-    @Schema(description = "The annotation data for the processor used to relay configuration between a custom UI and the procesosr.")
+    @Schema(description = "The annotation data for the processor used to relay configuration between a custom UI and the processor.")
     public String getAnnotationData() {
         return annotationData;
     }

src/main/java/org/apache/nifi/flowfile/FlowFile.java

@@ -116,7 +116,7 @@ private KeyValidator() {
 
         public static String validateKey(final String key) {
             // We used to validate the key by disallowing a handful of keywords, but this requirement no longer exists.
-            // Therefore this method simply verifies that the key is not empty.
+            // Therefore, this method simply verifies that the key is not empty.
             if (key == null) {
                 throw new IllegalArgumentException("Invalid attribute key: null");
             }

src/main/java/org/apache/nifi/kerberos/KerberosContext.java

@@ -22,7 +22,7 @@ public interface KerberosContext {
 
     /**
      * The Kerberos service principal used by NiFi to communicate with the KDC
-     * in order to obtain tickets on behalf of NiFi. Typically of the form
+     * in order to obtain tickets on behalf of NiFi. Typically, of the form
      * NIFI/fully.qualified.domain@REALM.
      *
      * @return the principal, or null if this NiFi instance is not configured

src/main/java/org/apache/nifi/logging/ComponentLog.java

@@ -35,7 +35,7 @@
  * Throwable, then the logged message will include a <code>toString()</code> of
  * the Throwable; in addition, if the component's logger is set to DEBUG level
  * via the logback configuration, the Stacktrace will also be logged. This
- * provides a mechanism to easily enable stacktraces in the logs when they are
+ * provides a mechanism to easily enable stack traces in the logs when they are
  * desired without filling the logs with unneeded stack traces for messages that
  * end up occurring often.
  * </li>

src/main/java/org/apache/nifi/processor/Processor.java

@@ -85,7 +85,7 @@ public interface Processor extends ConfigurableComponent {
      * @throws ProcessException if processing did not complete normally though
      * indicates the problem is an understood potential outcome of processing.
      * The controller/caller will handle these exceptions gracefully such as
-     * logging, etc.. If another type of exception is allowed to propagate the
+     * logging, etc. If another type of exception is allowed to propagate the
      * controller may no longer trigger this processor to operate, as this would
      * indicate a probable coding defect.
      */

src/main/java/org/apache/nifi/provenance/ProvenanceEventBuilder.java

@@ -298,7 +298,7 @@ public interface ProvenanceEventBuilder {
      * {@link ProvenanceEventRecord#getEventId()} on the
      * {@link ProvenanceEventRecord} that is returned will yield
      * <code>-1</code>. This is because the implementation of the Event may
-     * depend on the Provevenance Event Repository to generate the unique
+     * depend on the Provenance Event Repository to generate the unique
      * identifier.
      *
      * @return the event

src/main/java/org/apache/nifi/provenance/ProvenanceEventRecord.java

@@ -133,7 +133,7 @@ default boolean isRemotePortType() {
     /**
      * Since the receiving system will usually refer to the data using a
      * different identifier than the source system, this information is used to
-     * correlate the receive system's FlowFile with the sending system's data
+     * correlate the receiving system's FlowFile with the sending system's data
      *
      * @return the UUID that the Source System used to refer to this data; this
      * is applicable only when the {@link ProvenanceEventType} is of type
@@ -184,7 +184,7 @@ default boolean isRemotePortType() {
     /**
      * @return the identifier of the queue from which the FlowFile was taken, if
      * any. If the FlowFile is created as a result of this event (in this case,
-     * the Event Type is one of null null null null null null null null     {@link ProvenanceEventType#CREATE}, {@link ProvenanceEventType#RECEIVE},
+     * the Event Type is one of {@link ProvenanceEventType#CREATE}, {@link ProvenanceEventType#RECEIVE},
      * {@link ProvenanceEventType#FORK}, {@link ProvenanceEventType#JOIN}, or
      * {@link ProvenanceEventType#CLONE}), or if the queue identifier is
      * unknown, then this method will return <code>null</code>

src/main/java/org/apache/nifi/provenance/ProvenanceEventType.java

@@ -126,7 +126,7 @@ public enum ProvenanceEventType {
      * event will indicate the UUID of the original FlowFile that is being
      * replayed. The event will contain exactly one Parent UUID that is also the
      * UUID of the FlowFile that is being replayed and exactly one Child UUID
-     * that is the UUID of the a newly created FlowFile that will be re-queued
+     * that is the UUID of the newly created FlowFile that will be re-queued
      * for processing.
      */
     REPLAY,

src/main/java/org/apache/nifi/reporting/EventAccess.java

@@ -42,7 +42,7 @@ public interface EventAccess {
     /**
      * Convenience method to obtain Provenance Events starting with (and
      * including) the given ID. If no event exists with that ID, the first event
-     * to be returned will be have an ID greater than <code>firstEventId</code>.
+     * to be returned will have an ID greater than <code>firstEventId</code>.
      *
      * @param firstEventId the ID of the first event to obtain
      * @param maxRecords the maximum number of records to obtain

src/main/java/org/apache/nifi/reporting/ReportingContext.java

@@ -54,7 +54,7 @@ public interface ReportingContext extends PropertyContext {
     /**
      * Creates a controller-level {@link Bulletin} with the given category, severity
      * level, and message, so that the Bulletin can be added to the
-     * {@link BulletinRepository}. Access to this bulletin will be enforce through
+     * {@link BulletinRepository}. Access to this bulletin will be enforced through
      * permissions on the controller.
      *
      * @param category of bulletin

src/main/java/org/apache/nifi/reporting/ReportingInitializationContext.java

@@ -42,7 +42,7 @@ public interface ReportingInitializationContext extends KerberosContext {
 
     /**
      * Returns the amount of time, in the given {@link TimeUnit} that will
-     * elapsed between the return of one execution of the
+     * elapse between the return of one execution of the
      * {@link ReportingTask}'s
      * {@link ReportingTask#onTrigger(ReportingContext) onTrigger} method and
      * the time at which the method is invoked again. This method will return