fixing BC problem introduced by #148 , by converting Pattern instances from/to java.util.regex.Pattern in all public methods

Author: erosb

core/src/main/java/org/everit/json/schema/ObjectSchema.java

@@ -2,7 +2,6 @@
 
 import static java.util.Objects.requireNonNull;
 
-import com.google.re2j.Pattern;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.HashMap;
@@ -11,8 +10,11 @@
 import java.util.Map;
 import java.util.Objects;
 import java.util.Set;
+
 import org.everit.json.schema.internal.JSONPrinter;
 
+import com.google.re2j.Pattern;
+
 /**
  * Object schema validator.
  */
@@ -87,13 +89,13 @@ public Builder minProperties(Integer minProperties) {
             return this;
         }
 
-        public Builder patternProperty(Pattern pattern, Schema schema) {
-            this.patternProperties.put(pattern, schema);
+        public Builder patternProperty(java.util.regex.Pattern pattern, Schema schema) {
+            this.patternProperties.put(Pattern.compile(pattern.toString()), schema);
             return this;
         }
 
         public Builder patternProperty(String pattern, Schema schema) {
-            return patternProperty(Pattern.compile(pattern), schema);
+            return patternProperty(java.util.regex.Pattern.compile(pattern), schema);
         }
 
         /**

core/src/main/java/org/everit/json/schema/StringSchema.java

@@ -3,10 +3,12 @@
 import static java.util.Objects.requireNonNull;
 import static org.everit.json.schema.FormatValidator.NONE;
 
-import com.google.re2j.Pattern;
 import java.util.Objects;
+
 import org.everit.json.schema.internal.JSONPrinter;
 
+import com.google.re2j.Pattern;
+
 /**
  * {@code String} schema validator.
  */
@@ -113,10 +115,14 @@ public Integer getMinLength() {
         return minLength;
     }
 
-    public Pattern getPattern() {
+    Pattern getRE2JPattern() {
         return pattern;
     }
 
+    public java.util.regex.Pattern getPattern() {
+        return java.util.regex.Pattern.compile(pattern.toString());
+    }
+
     @Override void accept(Visitor visitor) {
         visitor.visitStringSchema(this);
     }

core/src/main/java/org/everit/json/schema/Visitor.java

@@ -1,10 +1,11 @@
 package org.everit.json.schema;
 
-import com.google.re2j.Pattern;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
 
+import com.google.re2j.Pattern;
+
 abstract class Visitor {
 
     void visitNumberSchema(NumberSchema numberSchema) {
@@ -165,7 +166,7 @@ void visitRequiredPropertyName(String requiredPropName) {
     void visitStringSchema(StringSchema stringSchema) {
         visitMinLength(stringSchema.getMinLength());
         visitMaxLength(stringSchema.getMaxLength());
-        visitPattern(stringSchema.getPattern());
+        visitPattern(stringSchema.getRE2JPattern());
         visitFormat(stringSchema.getFormatValidator());
     }