diff --git a/src/main/java/com/tagtraum/perf/gcviewer/imp/DataReaderUnifiedJvmLogging.java b/src/main/java/com/tagtraum/perf/gcviewer/imp/DataReaderUnifiedJvmLogging.java
index cce3427e..1b8073b0 100644
--- a/src/main/java/com/tagtraum/perf/gcviewer/imp/DataReaderUnifiedJvmLogging.java
+++ b/src/main/java/com/tagtraum/perf/gcviewer/imp/DataReaderUnifiedJvmLogging.java
@@ -506,7 +506,7 @@ private boolean isLogOnlyLine(String line) {
     }
 
     private boolean lineContainsParseableEvent(ParseContext context) {
-        if ((isCandidateForParseableEvent(context.getLine()) && !isExcludedLine(context.getLine()))) {
+        if (isCandidateForParseableEvent(context.getLine()) && !isExcludedLine(context.getLine())) {
             if (isLogOnlyLine(context.getLine())) {
                 String tail = context.getLine().substring(context.getLine().lastIndexOf("]")+1);
                 enrichContext(context, tail);
diff --git a/src/main/java/com/tagtraum/perf/gcviewer/model/AbstractGCEvent.java b/src/main/java/com/tagtraum/perf/gcviewer/model/AbstractGCEvent.java
index 8eb75224..91002a51 100644
--- a/src/main/java/com/tagtraum/perf/gcviewer/model/AbstractGCEvent.java
+++ b/src/main/java/com/tagtraum/perf/gcviewer/model/AbstractGCEvent.java
@@ -36,7 +36,7 @@ public abstract class AbstractGCEvent<T extends AbstractGCEvent<T>> implements S
     protected List<T> details;
     private double pause;
     private int number = -1;
-    protected List<AbstractGCEvent<?>> phases;
+    private List<AbstractGCEvent<?>> phases;
 
     public Iterator<T> details() {
         if (details == null) return Collections.emptyIterator();
diff --git a/src/main/java/com/tagtraum/perf/gcviewer/model/GCEventUJL.java b/src/main/java/com/tagtraum/perf/gcviewer/model/GCEventUJL.java
index b4729e01..17f421bd 100644
--- a/src/main/java/com/tagtraum/perf/gcviewer/model/GCEventUJL.java
+++ b/src/main/java/com/tagtraum/perf/gcviewer/model/GCEventUJL.java
@@ -1,7 +1,5 @@
 package com.tagtraum.perf.gcviewer.model;
 
-import java.util.ArrayList;
-
 /**
  * @author <a href="mailto:gcviewer@gmx.ch">Joerg Wuethrich</a>
  * <p>created on: 03.01.2018</p>
diff --git a/src/main/java/com/tagtraum/perf/gcviewer/model/GCModel.java b/src/main/java/com/tagtraum/perf/gcviewer/model/GCModel.java
index 222662aa..0f6e310c 100644
--- a/src/main/java/com/tagtraum/perf/gcviewer/model/GCModel.java
+++ b/src/main/java/com/tagtraum/perf/gcviewer/model/GCModel.java
@@ -53,7 +53,7 @@ public class GCModel implements Serializable {
 
     private Map<String, DoubleData> fullGcEventPauses; // pause information about all full gc events for detailed output
     private Map<String, DoubleData> gcEventPauses; // pause information about all stw events for detailed output
-    private Map<String, DoubleData> gcEventPhases;
+    private Map<String, DoubleData> gcEventPhases; // pause information about all phases for garbage collection events
     private Map<String, DoubleData> concurrentGcEventPauses; // pause information about all concurrent events
     private Map<String, DoubleData> vmOperationEventPauses; // pause information about vm operations ("application stopped")