diff --git a/com.minres.scviewer.database.ui.swt/pom.xml b/com.minres.scviewer.database.ui.swt/pom.xml
index de49454..8079c8c 100644
--- a/com.minres.scviewer.database.ui.swt/pom.xml
+++ b/com.minres.scviewer.database.ui.swt/pom.xml
@@ -1,7 +1,6 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>com.minres.scviewer.database.ui.swt</artifactId>
-  <version>2.0.0-SNAPSHOT</version>
   <packaging>eclipse-plugin</packaging>
   <parent>
   	<groupId>com.minres.scviewer</groupId>
diff --git a/com.minres.scviewer.database.vcd/pom.xml b/com.minres.scviewer.database.vcd/pom.xml
index f1a21ec..20be6aa 100644
--- a/com.minres.scviewer.database.vcd/pom.xml
+++ b/com.minres.scviewer.database.vcd/pom.xml
@@ -8,5 +8,4 @@
   	<relativePath>../com.minres.scviewer.parent</relativePath>
   </parent>
   <packaging>eclipse-plugin</packaging>
-  <version>2.0.0-SNAPSHOT</version>
 </project>
\ No newline at end of file
diff --git a/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/parts/WaveformViewer.java b/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/parts/WaveformViewer.java
index 5674cba..b5eaf08 100644
--- a/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/parts/WaveformViewer.java
+++ b/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/parts/WaveformViewer.java
@@ -33,7 +33,6 @@ import javax.inject.Named;
 
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.core.runtime.IStatus;
-import org.eclipse.core.runtime.Platform;
 import org.eclipse.core.runtime.Status;
 import org.eclipse.core.runtime.SubMonitor;
 import org.eclipse.core.runtime.jobs.IJobChangeEvent;
@@ -282,6 +281,7 @@ public class WaveformViewer implements IFileChangeListener, IPreferenceChangeLis
 		
 		waveformPane.getWaveformControl().addListener(SWT.KeyDown, new Listener() {
 			
+			@SuppressWarnings("null")
 			@Override
 			public void handleEvent(Event e) {
 				if(e==null) { // dummy to take out logging