утренние изменения

удаление эталона и роль студента

src/com/github/difflib/patch/AbstractDelta.java

@@ -14,20 +14,18 @@
  * limitations under the License.
  */
 package com.github.difflib.patch;
-
 import java.io.Serializable;
 import java.util.List;
 import java.util.Objects;
-
 /**
- * Abstract delta between a source and a target. 
+ * Abstract delta between a source and a target.
+ *
  * @author Tobias Warneke (t.warneke@gmx.net)
  */
 public abstract class AbstractDelta<T> implements Serializable {
     private final Chunk<T> source;
     private final Chunk<T> target;
     private final DeltaType type;
-    
     public AbstractDelta(DeltaType type, Chunk<T> source, Chunk<T> target) {
         Objects.requireNonNull(source);
         Objects.requireNonNull(target);
@@ -36,28 +34,24 @@ public abstract class AbstractDelta<T> implements Serializable {
         this.source = source;
         this.target = target;
     }
-
     public Chunk<T> getSource() {
         return source;
     }
-
     public Chunk<T> getTarget() {
         return target;
     }
-
     public DeltaType getType() {
         return type;
     }
-    
     /**
      * Verify the chunk of this delta, to fit the target.
+     *
      * @param target
-     * @throws PatchFailedException 
+     * @throws PatchFailedException
      */
     protected VerifyChunk verifyChunkToFitTarget(List<T> target) throws PatchFailedException {
         return getSource().verifyChunk(target);
     }
-   
     protected VerifyChunk verifyAndApplyTo(List<T> target) throws PatchFailedException {
         final VerifyChunk verify = verifyChunkToFitTarget(target);
         if (verify == VerifyChunk.OK) {
@@ -65,16 +59,13 @@ public abstract class AbstractDelta<T> implements Serializable {
         }
         return verify;
     }
-    
     protected abstract void applyTo(List<T> target) throws PatchFailedException;
-    
     protected abstract void restore(List<T> target);
-    
     /**
      * Apply patch fuzzy.
      *
-     * @param target the list this patch will be applied to
-     * @param fuzz the number of elements to ignore before/after the patched elements
+     * @param target   the list this patch will be applied to
+     * @param fuzz     the number of elements to ignore before/after the patched elements
      * @param position the position this patch will be applied to. ignores {@code source.getPosition()}
      * @see <a href="https://www.gnu.org/software/diffutils/manual/html_node/Inexact.html">Description of Fuzzy Patch</a> for more information.
      */
@@ -82,17 +73,14 @@ public abstract class AbstractDelta<T> implements Serializable {
     protected void applyFuzzyToAt(List<T> target, int fuzz, int position) throws PatchFailedException {
         throw new UnsupportedOperationException(this.getClass().getSimpleName() + " does not supports applying patch fuzzy");
     }
-
     /**
      * Create a new delta of the actual instance with customized chunk data.
      */
     public abstract AbstractDelta<T> withChunks(Chunk<T> original, Chunk<T> revised);
-
     @Override
     public int hashCode() {
         return Objects.hash(this.source, this.target, this.type);
     }
-
     @Override
     public boolean equals(Object obj) {
         if (this == obj) {