From b491a1d67b513f6a6f549fe6fcb374d731e0beca Mon Sep 17 00:00:00 2001
From: Adrien Hopkins <masterofnumbers17@gmail.com>
Date: Thu, 17 Oct 2019 16:31:38 -0400
Subject: Changed the ZeroIsNullMap to a more general ConditionalExistenceMap.

---
 src/org/unitConverter/math/ObjectProduct.java | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'src/org/unitConverter/math/ObjectProduct.java')

diff --git a/src/org/unitConverter/math/ObjectProduct.java b/src/org/unitConverter/math/ObjectProduct.java
index 21ab207..0cf89ec 100644
--- a/src/org/unitConverter/math/ObjectProduct.java
+++ b/src/org/unitConverter/math/ObjectProduct.java
@@ -92,7 +92,8 @@ public final class ObjectProduct<T> {
 	 * @since 2019-10-16
 	 */
 	private ObjectProduct(final Map<T, Integer> exponents) {
-		this.exponents = Collections.unmodifiableMap(ZeroIsNullMap.create(new HashMap<>(exponents)));
+		this.exponents = Collections.unmodifiableMap(ConditionalExistenceCollections
+				.conditionalExistenceMap(new HashMap<>(exponents), e -> !Integer.valueOf(0).equals(e.getValue())));
 	}
 
 	/**
-- 
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