tmf: Mark TmfTraceUtils @NonNullByDefault

[deliverable/tracecompass.git] / org.eclipse.tracecompass.analysis.os.linux.ui / src / org / eclipse / tracecompass / analysis / os / linux / ui / views / cpuusage / CpuUsageXYViewer.java

diff --git a/org.eclipse.tracecompass.analysis.os.linux.ui/src/org/eclipse/tracecompass/analysis/os/linux/ui/views/cpuusage/CpuUsageXYViewer.java b/org.eclipse.tracecompass.analysis.os.linux.ui/src/org/eclipse/tracecompass/analysis/os/linux/ui/views/cpuusage/CpuUsageXYViewer.java
index bdb516136b4a674411d801a42d90279a6b35456d..1a332af3100934b5953f87931a0de4036b93f592 100644 (file)
--- a/org.eclipse.tracecompass.analysis.os.linux.ui/src/org/eclipse/tracecompass/analysis/os/linux/ui/views/cpuusage/CpuUsageXYViewer.java
+++ b/org.eclipse.tracecompass.analysis.os.linux.ui/src/org/eclipse/tracecompass/analysis/os/linux/ui/views/cpuusage/CpuUsageXYViewer.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2014 École Polytechnique de Montréal
+ * Copyright (c) 2014, 2015 École Polytechnique de Montréal
  *
  * All rights reserved. This program and the accompanying materials are
  * made available under the terms of the Eclipse Public License v1.0 which
@@ -24,6 +24,7 @@ import org.eclipse.tracecompass.analysis.os.linux.core.cpuusage.KernelCpuUsageAn
 import org.eclipse.tracecompass.internal.analysis.os.linux.ui.Activator;
 import org.eclipse.tracecompass.statesystem.core.ITmfStateSystem;
 import org.eclipse.tracecompass.statesystem.core.exceptions.StateValueTypeException;
+import org.eclipse.tracecompass.tmf.core.trace.ITmfTrace;
 import org.eclipse.tracecompass.tmf.core.trace.TmfTraceUtils;
 import org.eclipse.tracecompass.tmf.ui.viewers.xycharts.linecharts.TmfCommonXLineChartViewer;
 
@@ -63,8 +64,9 @@ public class CpuUsageXYViewer extends TmfCommonXLineChartViewer {
 
     @Override
     protected void initializeDataSource() {
-        if (getTrace() != null) {
-            fModule = TmfTraceUtils.getAnalysisModuleOfClass(getTrace(), KernelCpuUsageAnalysis.class, KernelCpuUsageAnalysis.ID);
+        ITmfTrace trace = getTrace();
+        if (trace != null) {
+            fModule = TmfTraceUtils.getAnalysisModuleOfClass(trace, KernelCpuUsageAnalysis.class, KernelCpuUsageAnalysis.ID);
             if (fModule == null) {
                 return;
             }