File project.diff of Package vavr

--- vavr.spec.orig
+++ vavr.spec
@@ -71,7 +71,7 @@ API documentation for %{name}.
 
 %build
 %{mvn_build} -f -- \
-    -DlegacyMode=true -Dmaven.compiler.useIncrementalCompilation=false
+    -Dmaven.compiler.incrementalCompilation=classes -DlegacyMode=true
 
 %install
 %mvn_install
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