Fix typos in Indentation check code. #1555

Fixes some `SpellCheckingInspection` inspection violations.

Description:
>Spellchecker inspection helps locate typos and misspelling in your code, comments and literals, and fix them in one click.

src/main/java/com/puppycrawl/tools/checkstyle/checks/indentation/AbstractExpressionHandler.java

@@ -207,9 +207,9 @@ static boolean areOnSameLine(DetailAST ast1, DetailAST ast2) {
     }
 
     /**
-     * Searchs in given sub-tree (including given node) for the token
+     * Searches in given sub-tree (including given node) for the token
      * which represents first symbol for this sub-tree in file.
-     * @param ast a root of sub-tree in which the search shoul be performed.
+     * @param ast a root of sub-tree in which the search should be performed.
      * @return a token which occurs first in the file.
      */
     static DetailAST getFirstToken(DetailAST ast) {
@@ -275,7 +275,7 @@ protected boolean shouldIncreaseIndent() {
      * @param lines              the set of lines to check
      * @param indentLevel        the indentation level
      * @param firstLineMatches   whether or not the first line has to match
-     * @param firstLine          firstline of whole expression
+     * @param firstLine          first line of whole expression
      */
     private void checkLinesIndent(LineSet lines,
                                   IndentLevel indentLevel,

src/main/java/com/puppycrawl/tools/checkstyle/checks/indentation/ArrayInitHandler.java

@@ -30,10 +30,10 @@
 public class ArrayInitHandler extends BlockParentHandler {
     /**
      * Construct an instance of this handler with the given indentation check,
-     * astract syntax tree, and parent handler.
+     * abstract syntax tree, and parent handler.
      *
      * @param indentCheck   the indentation check
-     * @param ast           the astract syntax tree
+     * @param ast           the abstract syntax tree
      * @param parent        the parent handler
      */
     public ArrayInitHandler(IndentationCheck indentCheck,
@@ -101,7 +101,7 @@ protected IndentLevel getChildrenExpectedLevel() {
         final int firstLine = getFirstLine(Integer.MAX_VALUE, getListChild());
         final int lcurlyPos = expandedTabsColumnNo(getLCurly());
         final int firstChildPos =
-            getNextFirstNonblankOnLineAfter(firstLine, lcurlyPos);
+            getNextFirstNonBlankOnLineAfter(firstLine, lcurlyPos);
         if (firstChildPos >= 0) {
             expectedIndent.addAcceptedIndent(firstChildPos);
             expectedIndent.addAcceptedIndent(lcurlyPos + getLineWrappingIndentation());
@@ -117,7 +117,7 @@ protected IndentLevel getChildrenExpectedLevel() {
      *         specified column on specified line or -1 if
      *         such char doesn't exist.
      */
-    private int getNextFirstNonblankOnLineAfter(int lineNo, int columnNo) {
+    private int getNextFirstNonBlankOnLineAfter(int lineNo, int columnNo) {
         int realColumnNo = columnNo + 1;
         final String line = getIndentCheck().getLines()[lineNo - 1];
         final int lineLength = line.length();

src/main/java/com/puppycrawl/tools/checkstyle/checks/indentation/BlockParentHandler.java

@@ -34,7 +34,7 @@
  *   <LI>template method to get the rcurly</LI>
  *   <LI>if curlys aren't present, then template method to get expressions
  *       is called</LI>
- *   <LI>now all the repetitous code which checks for BOL, if curlys are on
+ *   <LI>now all the repetitious code which checks for BOL, if curlys are on
  *       same line, etc. can be collapsed into the superclass</LI>
  * </UL>
  *
@@ -70,7 +70,7 @@ public BlockParentHandler(IndentationCheck indentCheck,
     }
 
     /**
-     * Returns array of token types which should be checked among childrens.
+     * Returns array of token types which should be checked among children.
      * @return array of token types to check.
      */
     protected int[] getCheckedChildren() {
@@ -244,7 +244,7 @@ protected DetailAST getListChild() {
     /**
      * Get the right parenthesis portion of the expression we are handling.
      *
-     * @return the right parenthis expression
+     * @return the right parenthesis expression
      */
     protected DetailAST getRParen() {
         return getMainAst().findFirstToken(TokenTypes.RPAREN);
@@ -253,7 +253,7 @@ protected DetailAST getRParen() {
     /**
      * Get the left parenthesis portion of the expression we are handling.
      *
-     * @return the left parenthis expression
+     * @return the left parenthesis expression
      */
     protected DetailAST getLParen() {
         return getMainAst().findFirstToken(TokenTypes.LPAREN);
@@ -262,7 +262,7 @@ protected DetailAST getLParen() {
     @Override
     public void checkIndentation() {
         checkToplevelToken();
-        // seperate to allow for eventual configuration
+        // separate to allow for eventual configuration
         checkLParen(getLParen());
         checkRParen(getLParen(), getRParen());
         if (hasCurlys()) {

src/main/java/com/puppycrawl/tools/checkstyle/checks/indentation/CommentsIndentationCheck.java

@@ -168,7 +168,7 @@ private static DetailAST getPrevStatementFromSwitchBlock(DetailAST comment) {
     }
 
     /**
-     * Gets previous statement for comment which is placed immediatly under case.
+     * Gets previous statement for comment which is placed immediately under case.
      * @param parentStatement comment's parent statement.
      * @return comment's previous statement or null if previous statement is absent.
      */

src/main/java/com/puppycrawl/tools/checkstyle/checks/indentation/FinallyHandler.java

@@ -29,10 +29,10 @@
 public class FinallyHandler extends BlockParentHandler {
     /**
      * Construct an instance of this handler with the given indentation check,
-     * astract syntax tree, and parent handler.
+     * abstract syntax tree, and parent handler.
      *
      * @param indentCheck   the indentation check
-     * @param ast           the astract syntax tree
+     * @param ast           the abstract syntax tree
      * @param parent        the parent handler
      */
     public FinallyHandler(IndentationCheck indentCheck,

src/main/java/com/puppycrawl/tools/checkstyle/checks/indentation/IndentLevel.java

@@ -23,7 +23,7 @@
 
 /**
  * Encapsulates representation of notion of expected indentation levels.
- * Provide a way to have multiple accaptable levels.
+ * Provide a way to have multiple acceptable levels.
  *
  * @author o_sukhodolsky
  */
@@ -32,8 +32,8 @@ public class IndentLevel {
     private final BitSet levels = new BitSet();
 
     /**
-     * Creates new instance with one accaptable indentation level.
-     * @param indent accaptable indentation level.
+     * Creates new instance with one acceptable indentation level.
+     * @param indent acceptable indentation level.
      */
     public IndentLevel(int indent) {
         levels.set(indent);
@@ -54,8 +54,8 @@ public IndentLevel(IndentLevel base, int... offsets) {
     }
 
     /**
-     * Checks wether we have more than one level.
-     * @return wether we have more than one level.
+     * Checks whether we have more than one level.
+     * @return whether we have more than one level.
      */
     public final boolean isMultiLevel() {
         return levels.cardinality() > 1;

src/main/java/com/puppycrawl/tools/checkstyle/checks/indentation/SynchronizedHandler.java

@@ -61,7 +61,7 @@ public void checkIndentation() {
     }
 
     /**
-     * Check identation of expression we synchronized on
+     * Check indentation of expression we synchronized on
      */
     private void checkSynchronizedExpr() {
         final DetailAST syncAst = getMainAst().findFirstToken(TokenTypes.LPAREN)

src/test/java/com/puppycrawl/tools/checkstyle/checks/indentation/IndentationCheckTest.java

@@ -324,7 +324,7 @@ public void testAnonClassesFromGuava() throws Exception {
     }
 
     @Test
-    public void testAnnotatins() throws Exception {
+    public void testAnnotations() throws Exception {
         final DefaultConfiguration checkConfig = createCheckConfig(IndentationCheck.class);
 
         checkConfig.addAttribute("arrayInitIndent", "4");
@@ -388,7 +388,7 @@ public void testArrays() throws Exception {
     }
 
     @Test
-    public void testLables() throws Exception {
+    public void testLabels() throws Exception {
         final DefaultConfiguration checkConfig = createCheckConfig(IndentationCheck.class);
 
         checkConfig.addAttribute("arrayInitIndent", "4");