update tests to use slf4j

morphia/build.gradle

@@ -13,10 +13,14 @@ dependencies {
     testCompile "org.zeroturnaround:zt-exec:${ztExecVersion}"
     testCompile "com.jayway.awaitility:awaitility:${awaitilityVersion}"
     testCompile "org.skyscreamer:jsonassert:${jsonAssertVersion}"
+
+    testCompile "log4j:log4j:1.2.17"
+    testCompile "org.slf4j:slf4j-log4j12:1.7.2"
+    testCompile "org.slf4j:jul-to-slf4j:1.7.2"
 }
 
 clirr {
     excludeFilter = new File("$configDir/clirr-exclude.yml")
     baseline = ['org.mongodb.morphia:morphia:1.2.0'].join(':')
     failOnErrors = false
-}
+}

morphia/src/test/resources/log4j.xml

@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ Copyright 2016 MongoDB, Inc.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~   http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
+
+<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/" debug="false">
+
+    <appender name="CONSOLE" class="org.apache.log4j.ConsoleAppender">
+        <param name="Target" value="System.out"/>
+        <layout class="org.apache.log4j.PatternLayout">
+            <param name="ConversionPattern" value="%d{yyMMdd HH:mm:ss,SSS} %-5p [%c{1}] %m%n"/>
+        </layout>
+    </appender>
+
+    <root>
+    	<level value="WARN" />
+        <appender-ref ref="CONSOLE"/>
+    </root>
+
+</log4j:configuration>