diff --git a/Makefile b/Makefile
index 0f98b450..7420dadc 100644
--- a/Makefile
+++ b/Makefile
@@ -40,7 +40,7 @@ help:
 html dirhtml singlehtml epub latex:
 	@$(MAKE) docs_$@ $(MFLAGS)
 
-clean: cs_clean cp_clean c_clean js_clean py_clean rs_clean docs_clean
+clean: cs_clean cp_clean c_clean ja_clean js_clean py_clean rs_clean docs_clean
 
 cs_%:
 	@cd csharp && $(MAKE) $* $(MFLAGS)
@@ -67,4 +67,4 @@ rs_%:
 	@cd rust && $(MAKE) $* $(MFLAGS)
 
 %:
-	@$(MAKE) c_$* cp_$* cs_$* js_$* py_$* rs_$* $(MFLAGS)
+	@$(MAKE) c_$* cp_$* cs_$* ja_$* js_$* py_$* rs_$* $(MFLAGS)
diff --git a/java/Makefile b/java/Makefile
index f3d2ec6d..bb5eb75e 100644
--- a/java/Makefile
+++ b/java/Makefile
@@ -16,13 +16,13 @@ dependencies:
 	$(MVN) install -B
 
 test: dependencies
-	$(MVN) test -e -Dtest.single
+	$(MVN) -e test -Dtest.single
 
 test_auto: dependencies
-	$(MVN) test -e -T 1C
+	$(MVN) -e test -T 1C
 
 test_%: dependencies
-	$(MVN) test -e -T $*
+	$(MVN) -e test -T $*
 
 lint:
 	$(MVN) formatter:format
diff --git a/java/src/main/java/euler/lib/Utilities.java b/java/src/main/java/euler/lib/Utilities.java
index 221b05d2..ee12d827 100644
--- a/java/src/main/java/euler/lib/Utilities.java
+++ b/java/src/main/java/euler/lib/Utilities.java
@@ -13,7 +13,7 @@ private static Path getDataPath(String name) throws IOException {
         Path classPath = Paths.get(Utilities.class.getProtectionDomain().getCodeSource().getLocation().getPath());
         Path classDir = classPath.getParent();
         Path filePath = classDir.getParent().getParent().resolve("_data").resolve(name);
-        return filePath.toAbsolutePath();
+        return filePath;
     }
 
     public static byte[] getDataFileBytes(String name) throws IOException {
@@ -80,4 +80,4 @@ public static Object getAnswer(long n) throws IOException {
         }
         throw new IOException("Answer not found.");
     }
-}
\ No newline at end of file
+}