diff --git a/server/.gitignore b/server/.gitignore
index d2e8590..81d84a5 100644
--- a/server/.gitignore
+++ b/server/.gitignore
@@ -38,4 +38,3 @@ out/
 .vscode/
 build/classes/java/main/com/swdc/server/config/WebConfig.class
 src/main/java/com/swdc/server/config/WebConfig.java
-build
diff --git a/server/build/classes/java/main/com/swdc/server/domain/storage/Price$PriceBuilder.class b/server/build/classes/java/main/com/swdc/server/domain/storage/Price$PriceBuilder.class
new file mode 100644
index 0000000..f4df1af
Binary files /dev/null and b/server/build/classes/java/main/com/swdc/server/domain/storage/Price$PriceBuilder.class differ
diff --git a/server/build/classes/java/main/com/swdc/server/domain/storage/Price.class b/server/build/classes/java/main/com/swdc/server/domain/storage/Price.class
new file mode 100644
index 0000000..cc3cb05
Binary files /dev/null and b/server/build/classes/java/main/com/swdc/server/domain/storage/Price.class differ
diff --git a/server/build/classes/java/main/com/swdc/server/domain/storage/Product.class b/server/build/classes/java/main/com/swdc/server/domain/storage/Product.class
new file mode 100644
index 0000000..ca62fa8
Binary files /dev/null and b/server/build/classes/java/main/com/swdc/server/domain/storage/Product.class differ
diff --git a/server/build/classes/java/main/com/swdc/server/service/PriceService.class b/server/build/classes/java/main/com/swdc/server/service/PriceService.class
index 061492b..5552753 100644
Binary files a/server/build/classes/java/main/com/swdc/server/service/PriceService.class and b/server/build/classes/java/main/com/swdc/server/service/PriceService.class differ
diff --git a/server/build/libs/swdc-0.0.1-SNAPSHOT-plain.jar b/server/build/libs/swdc-0.0.1-SNAPSHOT-plain.jar
index 84b25c5..797ea4a 100644
Binary files a/server/build/libs/swdc-0.0.1-SNAPSHOT-plain.jar and b/server/build/libs/swdc-0.0.1-SNAPSHOT-plain.jar differ
diff --git a/server/build/libs/swdc-0.0.1-SNAPSHOT.jar b/server/build/libs/swdc-0.0.1-SNAPSHOT.jar
index a53bd0c..3551e77 100644
Binary files a/server/build/libs/swdc-0.0.1-SNAPSHOT.jar and b/server/build/libs/swdc-0.0.1-SNAPSHOT.jar differ
diff --git a/server/build/tmp/compileJava/compileTransaction/stash-dir/PriceService.class.uniqueId1 b/server/build/tmp/compileJava/compileTransaction/stash-dir/PriceService.class.uniqueId1
new file mode 100644
index 0000000..061492b
Binary files /dev/null and b/server/build/tmp/compileJava/compileTransaction/stash-dir/PriceService.class.uniqueId1 differ
diff --git a/server/build/tmp/compileJava/previous-compilation-data.bin b/server/build/tmp/compileJava/previous-compilation-data.bin
index acfbc2e..2f6465b 100644
Binary files a/server/build/tmp/compileJava/previous-compilation-data.bin and b/server/build/tmp/compileJava/previous-compilation-data.bin differ
diff --git a/server/src/main/java/com/swdc/server/service/PriceService.java b/server/src/main/java/com/swdc/server/service/PriceService.java
index 8370758..fc276dc 100644
--- a/server/src/main/java/com/swdc/server/service/PriceService.java
+++ b/server/src/main/java/com/swdc/server/service/PriceService.java
@@ -21,7 +21,6 @@
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
-import java.util.stream.Collectors;
 
 /**
  *