Adding null pointer handling in cluster analysis.

diff --git a/Code/Projects/PacketLevelSignatureExtractor/src/main/java/edu/uci/iotproject/util/PcapPacketUtils.java b/Code/Projects/PacketLevelSignatureExtractor/src/main/java/edu/uci/iotproject/util/PcapPacketUtils.java
index c1a1a25150b112a6def2e09b867a12772027eeb3..ba0607016023603eac155e6cd9737043b8e1dfc1 100644 (file)
--- a/Code/Projects/PacketLevelSignatureExtractor/src/main/java/edu/uci/iotproject/util/PcapPacketUtils.java
+++ b/Code/Projects/PacketLevelSignatureExtractor/src/main/java/edu/uci/iotproject/util/PcapPacketUtils.java
@@ -633,6 +633,9 @@ public final class PcapPacketUtils {
             List<PcapPacket> listCorePointLowerBound = listOfListPcapPacket.get(0);
             List<PcapPacket> listCorePointUpperBound = listOfListPcapPacket.get(1);
             for(PcapPacket corePointLowerBound : listCorePointLowerBound) {
+                if (corePointLowerBound == null) { // Skip if null!
+                    continue;
+                }
                 PcapPacket corePointUpperBound =
                         listCorePointUpperBound.get(listCorePointLowerBound.indexOf(corePointLowerBound));
                 // Return if the match for the core point bounds is found