diff --git a/features/com.minres.scviewer.database.feature/feature.xml b/features/com.minres.scviewer.database.feature/feature.xml
index 0220ea3..2f9f01a 100644
--- a/features/com.minres.scviewer.database.feature/feature.xml
+++ b/features/com.minres.scviewer.database.feature/feature.xml
@@ -27,12 +27,12 @@ http://www.eclipse.org/legal/epl-v10.html
    </url>
 
    <requires>
-      <import plugin="org.codehaus.groovy" version="2.5.8" match="greaterOrEqual"/>
       <import plugin="org.eclipse.osgi.services" version="3.4.0" match="greaterOrEqual"/>
       <import plugin="com.google.guava" version="15.0.0" match="greaterOrEqual"/>
       <import plugin="org.eclipse.osgi"/>
       <import plugin="com.minres.scviewer.database" version="1.0.0" match="greaterOrEqual"/>
       <import plugin="org.eclipse.core.runtime"/>
+      <import feature="org.eclipse.collections.feature" version="10.4.0.v20200820-2049"/>
    </requires>
 
    <plugin
diff --git a/plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/parts/WaveformViewer.java b/plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/parts/WaveformViewer.java
index 076f682..c35fc5b 100644
--- a/plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/parts/WaveformViewer.java
+++ b/plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/parts/WaveformViewer.java
@@ -240,10 +240,9 @@ public class WaveformViewer implements IFileChangeListener, IPreferenceChangeLis
 	@Inject Composite parent;
 
 	private boolean showHover;
-
-	@Preference(nodePath = PreferenceConstants.PREFERENCES_SCOPE, value = PreferenceConstants.SHOW_TX_DETAILS) Boolean blah;
 	
 	private SashForm topSash = null;
+
 	private SashForm middleSash = null;
 
 	/**
diff --git a/tests/com.minres.scviewer.database.test/inputs/.gitignore b/tests/com.minres.scviewer.database.test/inputs/.gitignore
index b60cf0f..358f155 100644
--- a/tests/com.minres.scviewer.database.test/inputs/.gitignore
+++ b/tests/com.minres.scviewer.database.test/inputs/.gitignore
@@ -10,3 +10,4 @@
 /hw_cfg_2_nc.vcd
 /test_05.txlog
 /test_05.vcd
+/tgc/