diff --git a/bagel/src/test/resources/log4j.properties b/bagel/src/test/resources/log4j.properties
new file mode 100644
index 0000000000000000000000000000000000000000..02fe16866ecac81d3facb4be88e1764ab5f9b4b2
--- /dev/null
+++ b/bagel/src/test/resources/log4j.properties
@@ -0,0 +1,8 @@
+# Set everything to be logged to the console
+log4j.rootCategory=WARN, console
+log4j.appender.console=org.apache.log4j.ConsoleAppender
+log4j.appender.console.layout=org.apache.log4j.PatternLayout
+log4j.appender.console.layout.ConversionPattern=%d{yy/MM/dd HH:mm:ss.SSS} %p %c{1}: %m%n
+
+# Ignore messages below warning level from Jetty, because it's a bit verbose
+log4j.logger.org.eclipse.jetty=WARN
diff --git a/core/src/test/resources/log4j.properties b/core/src/test/resources/log4j.properties
new file mode 100644
index 0000000000000000000000000000000000000000..02fe16866ecac81d3facb4be88e1764ab5f9b4b2
--- /dev/null
+++ b/core/src/test/resources/log4j.properties
@@ -0,0 +1,8 @@
+# Set everything to be logged to the console
+log4j.rootCategory=WARN, console
+log4j.appender.console=org.apache.log4j.ConsoleAppender
+log4j.appender.console.layout=org.apache.log4j.PatternLayout
+log4j.appender.console.layout.ConversionPattern=%d{yy/MM/dd HH:mm:ss.SSS} %p %c{1}: %m%n
+
+# Ignore messages below warning level from Jetty, because it's a bit verbose
+log4j.logger.org.eclipse.jetty=WARN
diff --git a/repl/src/test/resources/log4j.properties b/repl/src/test/resources/log4j.properties
new file mode 100644
index 0000000000000000000000000000000000000000..02fe16866ecac81d3facb4be88e1764ab5f9b4b2
--- /dev/null
+++ b/repl/src/test/resources/log4j.properties
@@ -0,0 +1,8 @@
+# Set everything to be logged to the console
+log4j.rootCategory=WARN, console
+log4j.appender.console=org.apache.log4j.ConsoleAppender
+log4j.appender.console.layout=org.apache.log4j.PatternLayout
+log4j.appender.console.layout.ConversionPattern=%d{yy/MM/dd HH:mm:ss.SSS} %p %c{1}: %m%n
+
+# Ignore messages below warning level from Jetty, because it's a bit verbose
+log4j.logger.org.eclipse.jetty=WARN