corrected imports wrongly removed in b388743
diff --git a/pom.xml b/pom.xml
index da27ac2..19ce0ba 100644
--- a/pom.xml
+++ b/pom.xml
@@ -33,7 +33,7 @@
     <!-- P R O J E C T                                                           -->
     <!-- ======================================================================= -->
     <artifactId>org.apache.sling.scripting.sightly.compiler</artifactId>
-    <version>1.0.15-SNAPSHOT</version>
+    <version>1.0.16</version>
     <packaging>bundle</packaging>
 
     <name>Apache Sling Scripting HTL Compiler</name>
@@ -47,7 +47,8 @@
         <connection>scm:git:https://gitbox.apache.org/repos/asf/sling-org-apache-sling-scripting-sightly-compiler.git</connection>
         <developerConnection>scm:git:https://gitbox.apache.org/repos/asf/sling-org-apache-sling-scripting-sightly-compiler.git</developerConnection>
         <url>https://gitbox.apache.org/repos/asf?p=sling-org-apache-sling-scripting-sightly-compiler.git</url>
-    </scm>
+      <tag>org.apache.sling.scripting.sightly.compiler-1.0.16</tag>
+  </scm>
 
     <properties>
         <antlr.version>4.1</antlr.version>
diff --git a/src/main/java/org/apache/sling/scripting/sightly/compiler/backend/BackendCompiler.java b/src/main/java/org/apache/sling/scripting/sightly/compiler/backend/BackendCompiler.java
index 16b1a51..6c53df5 100644
--- a/src/main/java/org/apache/sling/scripting/sightly/compiler/backend/BackendCompiler.java
+++ b/src/main/java/org/apache/sling/scripting/sightly/compiler/backend/BackendCompiler.java
@@ -18,7 +18,11 @@
  ******************************************************************************/
 package org.apache.sling.scripting.sightly.compiler.backend;
 
+import org.apache.sling.scripting.sightly.compiler.CompilationUnit;
+import org.apache.sling.scripting.sightly.compiler.SightlyCompiler;
+import org.apache.sling.scripting.sightly.compiler.commands.Command;
 import org.apache.sling.scripting.sightly.compiler.commands.CommandStream;
+import org.apache.sling.scripting.sightly.compiler.commands.CommandVisitor;
 import org.osgi.annotation.versioning.ConsumerType;
 
 /**