diff --git a/plugins/com.minres.scviewer.database.text/src/com/minres/scviewer/database/text/AbstractTxStream.java b/plugins/com.minres.scviewer.database.text/src/com/minres/scviewer/database/text/AbstractTxStream.java
index 111552f..4ea449d 100644
--- a/plugins/com.minres.scviewer.database.text/src/com/minres/scviewer/database/text/AbstractTxStream.java
+++ b/plugins/com.minres.scviewer.database.text/src/com/minres/scviewer/database/text/AbstractTxStream.java
@@ -12,7 +12,6 @@
 package com.minres.scviewer.database.text;
 
 import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.HashMap;
 
 import com.minres.scviewer.database.EventEntry;
diff --git a/plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/internal/StreamPainter.java b/plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/internal/StreamPainter.java
index 3e3fb28..75780da 100644
--- a/plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/internal/StreamPainter.java
+++ b/plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/internal/StreamPainter.java
@@ -19,7 +19,6 @@ import org.eclipse.swt.graphics.Rectangle;
 
 import com.minres.scviewer.database.EventEntry;
 import com.minres.scviewer.database.EventKind;
-import com.minres.scviewer.database.EventList;
 import com.minres.scviewer.database.IEvent;
 import com.minres.scviewer.database.IEventList;
 import com.minres.scviewer.database.IWaveform;
diff --git a/plugins/com.minres.scviewer.database/META-INF/MANIFEST.MF b/plugins/com.minres.scviewer.database/META-INF/MANIFEST.MF
index ce92e9f..952a33d 100644
--- a/plugins/com.minres.scviewer.database/META-INF/MANIFEST.MF
+++ b/plugins/com.minres.scviewer.database/META-INF/MANIFEST.MF
@@ -10,4 +10,3 @@ Export-Package: com.minres.scviewer.database,
 Bundle-ActivationPolicy: lazy
 Service-Component: OSGI-INF/component.xml,OSGI-INF/component2.xml
 Automatic-Module-Name: com.minres.scviewer.database
-Require-Bundle: org.eclipse.collections;bundle-version="10.4.0"