Backported concurrency library is inadvertently used in anicetus-core - src/main/java/org/addsimplicity/anicetus/entity/EntityTypeRegistry.java

Simply changing the import from 'edu.emory.mathcs.backport.java.util.Collections' to 'java.util.Collections' is sufficient:

diff --git a/anicetus-core/src/main/java/org/addsimplicity/anicetus/entity/EntityTypeRegistry.java b/anicetus-core/src/main/java/org/addsimplicity/anicetus/entity/EntityTypeRegistry.java
index 6e9fc07..65e3bc0 100644
— a/anicetus-core/src/main/java/org/addsimplicity/anicetus/entity/EntityTypeRegistry.java
+++ b/anicetus-core/src/main/java/org/addsimplicity/anicetus/entity/EntityTypeRegistry.java
@@ -23,7 +23,7 @@ import java.util.LinkedHashSet;
import java.util.Map;
import java.util.Set;

-import edu.emory.mathcs.backport.java.util.Collections;
+import java.util.Collections;

/**

• The type registry provides the mappings between the Java implementation and