diff --git a/compiler-jx/.classpath b/compiler-jx/.classpath
index d249dbd..1847a30 100644
--- a/compiler-jx/.classpath
+++ b/compiler-jx/.classpath
@@ -13,6 +13,8 @@
 	<classpathentry kind="lib" path="lib/guava.jar"/>
 	<classpathentry kind="lib" path="lib/flex-tool-api.jar"/>
 	<classpathentry kind="lib" path="lib/junit-4.10.jar"/>
+	<classpathentry kind="lib" path="../compiler/lib/external/log4j-api.jar"/>
+	<classpathentry kind="lib" path="../compiler/lib/external/log4j-core.jar"/>
 	<classpathentry kind="con" path="org.eclipse.jdt.USER_LIBRARY/COMMONS_COMPRESS"/>
 	<classpathentry kind="output" path="target/classes"/>
 </classpath>
diff --git a/compiler-jx/build.xml b/compiler-jx/build.xml
index 86e1917..8c505081 100644
--- a/compiler-jx/build.xml
+++ b/compiler-jx/build.xml
@@ -67,6 +67,8 @@
     <path id="classpath">
         <filelist dir="${falcon.lib.dir}/external">
             <file name="antlr.jar" />
+            <file name="log4j-core.jar" />
+            <file name="log4j-api.jar" />
         </filelist>
 		<filelist dir="${lib}">
 			<file name="commons-io.jar" />
@@ -101,7 +103,7 @@
 	
 	<target name="main" depends="prebuild,compile">
         
-        <property name="jar.classpath" value="commons-io.jar guava.jar ../../lib/external/antlr.jar ../../compiler/lib/external/antlr.jar google/closure-compiler/compiler.jar ../../compiler/lib/compiler.jar ../../lib/compiler.jar" />
+        <property name="jar.classpath" value="commons-io.jar guava.jar ../../lib/external/antlr.jar ../../compiler/lib/external/antlr.jar google/closure-compiler/compiler.jar ../../compiler/lib/compiler.jar ../../lib/compiler.jar ../../lib/external/log4j-api.jar ../../compiler/lib/external/log4j-api.jar ../../lib/external/log4j-core.jar ../../compiler/lib/external/log4j-core.jar" />
 
         <copy file="${basedir}/../LICENSE.base" tofile="${classes.dir}/META-INF/LICENSE"/>
         <copy file="${basedir}/../NOTICE.jx" tofile="${classes.dir}/META-INF/NOTICE"/>
diff --git a/compiler/.classpath b/compiler/.classpath
index 97b24f0..6f7e755 100644
--- a/compiler/.classpath
+++ b/compiler/.classpath
@@ -23,5 +23,7 @@
 	<classpathentry kind="lib" path="lib/external/commons-lang3-3.4.jar"/>
 	<classpathentry kind="lib" path="lib/external/jburg.jar"/>
 	<classpathentry kind="lib" path="lib/external/commons-compress-1.10.jar"/>
+	<classpathentry kind="lib" path="lib/external/log4j-api.jar"/>
+	<classpathentry kind="lib" path="lib/external/log4j-core.jar"/>
 	<classpathentry kind="output" path="target/classes"/>
 </classpath>
diff --git a/compiler/build.xml b/compiler/build.xml
index 6ee5110..e2d63e1 100644
--- a/compiler/build.xml
+++ b/compiler/build.xml
@@ -553,7 +553,7 @@
                 <attribute name="Implementation-Title" value="${manifest.Implementation-Title}"/>
                 <attribute name="Implementation-Version" value="${manifest.Implementation-Version}.${build.number}"/>
                 <attribute name="Implementation-Vendor" value="${manifest.Implementation-Vendor}"/>
-                <attribute name="Class-Path" value="external/antlr.jar external/commons-cli.jar external/commons-io.jar external/guava.jar external/lzma-sdk.jar external/flex-tool-api.jar .."/>
+                <attribute name="Class-Path" value="external/antlr.jar external/log4j-api.jar external/log4j-core.jar external/commons-cli.jar external/commons-io.jar external/guava.jar external/lzma-sdk.jar external/flex-tool-api.jar .."/>
                 <!-- The .. in the line above allows the compiler to load the env.properties file -->
             </manifest>
         </jar>
diff --git a/compiler/src/main/resources/downloads.xml b/compiler/src/main/resources/downloads.xml
index d57abe0..cbd513f 100644
--- a/compiler/src/main/resources/downloads.xml
+++ b/compiler/src/main/resources/downloads.xml
@@ -149,7 +149,7 @@
       <param name="src.server" value="${maven.search.url}"/>
       <param name="src.folder" value="org/apache/logging/log4j/${log4j-api.name}/${log4j.version}"/>
       <param name="src.filename" value="${log4j-api.name}-${log4j.version}.jar"/>
-      <param name="src.checksum" value="to-be-updated"/>
+      <param name="src.checksum" value="8c6059adc8248076dfbfec5b875ead3d"/>
       <param name="dest.folder" value=""/>
       <param name="dest.filename" value="${log4j-api.name}.jar"/>
       <param name="license.use.apache" value="true"/>
@@ -159,7 +159,7 @@
       <param name="src.server" value="${maven.search.url}"/>
       <param name="src.folder" value="org/apache/logging/log4j/${log4j-core.name}/${log4j.version}"/>
       <param name="src.filename" value="${log4j-core.name}-${log4j.version}.jar"/>
-      <param name="src.checksum" value="to-be-updated"/>
+      <param name="src.checksum" value="2b63e0e5063fdaccf669a1e26384f3fd"/>
       <param name="dest.folder" value=""/>
       <param name="dest.filename" value="${log4j-core.name}.jar"/>
       <param name="license.use.apache" value="true"/>