diff --git a/config/findbugs-exclude.xml b/config/findbugs-exclude.xml
index ed130d7b6..fdda9e04d 100644
--- a/config/findbugs-exclude.xml
+++ b/config/findbugs-exclude.xml
@@ -27,11 +27,6 @@
       <Class name="com.puppycrawl.tools.checkstyle.checks.javadoc.JavadocUtils" />
       <Bug pattern="REC_CATCH_EXCEPTION" />
     </Match>
-    <Match>
-      <!-- till #911 -->
-      <Package name="~com\.puppycrawl\.tools\.checkstyle.*" />
-      <Bug pattern="EQ_COMPARETO_USE_OBJECT_EQUALS" />
-    </Match>
     <Match>
       <!-- see a reason of suppression at #910 -->
       <Class name="com.puppycrawl.tools.checkstyle.checks.UniquePropertiesCheck$UniqueProperties" />
diff --git a/pom.xml b/pom.xml
index 95ea05d74..a1e2103b3 100644
--- a/pom.xml
+++ b/pom.xml
@@ -664,7 +664,7 @@
           <regex><pattern>.*.api.JavadocTagInfo</pattern><branchRate>25</branchRate><lineRate>77</lineRate></regex>
           <regex><pattern>.*.api.JavadocTagInfo\$.*</pattern><branchRate>0</branchRate><lineRate>8</lineRate></regex>
           <regex><pattern>.*.api.JavadocTokenTypes</pattern><branchRate>100</branchRate><lineRate>0</lineRate></regex>
-          <regex><pattern>.*.api.LineColumn</pattern><branchRate>0</branchRate><lineRate>60</lineRate></regex>
+          <regex><pattern>.*.api.LineColumn</pattern><branchRate>0</branchRate><lineRate>33</lineRate></regex>
           <regex><pattern>.*.api.LocalizedMessage</pattern><branchRate>53</branchRate><lineRate>67</lineRate></regex>
           <regex><pattern>.*.api.LocalizedMessage\$.*</pattern><branchRate>41</branchRate><lineRate>66</lineRate></regex>
           <regex><pattern>.*.api.ScopeUtils</pattern><branchRate>0</branchRate><lineRate>0</lineRate></regex>
@@ -889,11 +889,11 @@
           <regex><pattern>.*.filters.IntRangeFilter</pattern><branchRate>100</branchRate><lineRate>90</lineRate></regex>
           <regex><pattern>.*.filters.SuppressElement</pattern><branchRate>69</branchRate><lineRate>78</lineRate></regex>
           <regex><pattern>.*.filters.SuppressionCommentFilter</pattern><branchRate>83</branchRate><lineRate>87</lineRate></regex>
-          <regex><pattern>.*.filters.SuppressionCommentFilter\$.*</pattern><branchRate>87</branchRate><lineRate>84</lineRate></regex>
+          <regex><pattern>.*.filters.SuppressionCommentFilter\$.*</pattern><branchRate>41</branchRate><lineRate>69</lineRate></regex>
           <regex><pattern>.*.filters.SuppressionFilter</pattern><branchRate>0</branchRate><lineRate>0</lineRate></regex>
           <regex><pattern>.*.filters.SuppressionsLoader</pattern><branchRate>68</branchRate><lineRate>77</lineRate></regex>
           <regex><pattern>.*.filters.SuppressWithNearbyCommentFilter</pattern><branchRate>76</branchRate><lineRate>89</lineRate></regex>
-          <regex><pattern>.*.filters.SuppressWithNearbyCommentFilter\$.*</pattern><branchRate>81</branchRate><lineRate>75</lineRate></regex>
+          <regex><pattern>.*.filters.SuppressWithNearbyCommentFilter\$.*</pattern><branchRate>47</branchRate><lineRate>63</lineRate></regex>
 
          </regexes>
         </check>
diff --git a/src/main/java/com/puppycrawl/tools/checkstyle/api/LineColumn.java b/src/main/java/com/puppycrawl/tools/checkstyle/api/LineColumn.java
index 8a57f977b..429d3da13 100644
--- a/src/main/java/com/puppycrawl/tools/checkstyle/api/LineColumn.java
+++ b/src/main/java/com/puppycrawl/tools/checkstyle/api/LineColumn.java
@@ -19,6 +19,8 @@
 
 package com.puppycrawl.tools.checkstyle.api;
 
+import java.util.Objects;
+
 /**
  * Immutable line and column numbers.
  *
@@ -64,4 +66,26 @@ public class LineColumn implements Comparable<LineColumn>
             ? this.getLine() - lineColumn.getLine()
             : this.getColumn() - lineColumn.getColumn();
     }
+
+    /** {@inheritDoc} */
+    @Override
+    public boolean equals(Object o)
+    {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+        final LineColumn that = (LineColumn) o;
+        return Objects.equals(line, that.line)
+                && Objects.equals(col, that.col);
+    }
+
+    /** {@inheritDoc} */
+    @Override
+    public int hashCode()
+    {
+        return Objects.hash(line, col);
+    }
 }
diff --git a/src/main/java/com/puppycrawl/tools/checkstyle/filters/SuppressWithNearbyCommentFilter.java b/src/main/java/com/puppycrawl/tools/checkstyle/filters/SuppressWithNearbyCommentFilter.java
index 0c1c33313..f3502b5a7 100644
--- a/src/main/java/com/puppycrawl/tools/checkstyle/filters/SuppressWithNearbyCommentFilter.java
+++ b/src/main/java/com/puppycrawl/tools/checkstyle/filters/SuppressWithNearbyCommentFilter.java
@@ -32,6 +32,7 @@ import java.util.Collection;
 import java.util.Collections;
 import java.util.Iterator;
 import java.util.List;
+import java.util.Objects;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 import java.util.regex.PatternSyntaxException;
@@ -191,6 +192,31 @@ public class SuppressWithNearbyCommentFilter
             return firstLine - other.firstLine;
         }
 
+        /** {@inheritDoc} */
+        @Override
+        public boolean equals(Object o)
+        {
+            if (this == o) {
+                return true;
+            }
+            if (o == null || getClass() != o.getClass()) {
+                return false;
+            }
+            final Tag tag = (Tag) o;
+            return Objects.equals(firstLine, tag.firstLine)
+                    && Objects.equals(lastLine, tag.lastLine)
+                    && Objects.equals(text, tag.text)
+                    && Objects.equals(tagCheckRegexp, tag.tagCheckRegexp)
+                    && Objects.equals(tagMessageRegexp, tag.tagMessageRegexp);
+        }
+
+        /** {@inheritDoc} */
+        @Override
+        public int hashCode()
+        {
+            return Objects.hash(text, firstLine, lastLine, tagCheckRegexp, tagMessageRegexp);
+        }
+
         /**
          * Determines whether the source of an audit event
          * matches the text of this tag.
diff --git a/src/main/java/com/puppycrawl/tools/checkstyle/filters/SuppressionCommentFilter.java b/src/main/java/com/puppycrawl/tools/checkstyle/filters/SuppressionCommentFilter.java
index 0e6ba2525..da9fdf783 100644
--- a/src/main/java/com/puppycrawl/tools/checkstyle/filters/SuppressionCommentFilter.java
+++ b/src/main/java/com/puppycrawl/tools/checkstyle/filters/SuppressionCommentFilter.java
@@ -31,6 +31,7 @@ import java.lang.ref.WeakReference;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.List;
+import java.util.Objects;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 import java.util.regex.PatternSyntaxException;
@@ -195,6 +196,32 @@ public class SuppressionCommentFilter
             return line - object.line;
         }
 
+        /** {@inheritDoc} */
+        @Override
+        public boolean equals(Object o)
+        {
+            if (this == o) {
+                return true;
+            }
+            if (o == null || getClass() != o.getClass()) {
+                return false;
+            }
+            final Tag tag = (Tag) o;
+            return Objects.equals(line, tag.line)
+                    && Objects.equals(column, tag.column)
+                    && Objects.equals(on, tag.on)
+                    && Objects.equals(text, tag.text)
+                    && Objects.equals(tagCheckRegexp, tag.tagCheckRegexp)
+                    && Objects.equals(tagMessageRegexp, tag.tagMessageRegexp);
+        }
+
+        /** {@inheritDoc} */
+        @Override
+        public int hashCode()
+        {
+            return Objects.hash(text, line, column, on, tagCheckRegexp, tagMessageRegexp);
+        }
+
         /**
          * Determines whether the source of an audit event
          * matches the text of this tag.