diff --git a/R/zzz.R b/R/zzz.R
index 8bfca3f..9a2be34 100644
--- a/R/zzz.R
+++ b/R/zzz.R
@@ -19,6 +19,7 @@
 .onLoad <- function(libname, pkgname) {
 
   rJava::.jpackage(pkgname, jars = "*", lib.loc = libname)
+  rJava::.jpackage(pkgname, lib.loc = libname)
   rJava::.jaddClassPath(dir(file.path(getwd(), "inst/java"), full.names = TRUE))
 
 }
diff --git a/inst/java/log4j.properties b/inst/java/log4j.properties
index 3485ec5..e203ac4 100644
--- a/inst/java/log4j.properties
+++ b/inst/java/log4j.properties
@@ -1 +1 @@
-log4j.rootLogger=WARN
+log4j.rootLogger=ERROR
\ No newline at end of file