No match found on RHEL 6.6

[fernandoacorreia]

On a Red Hat Enterprise Linux 6.6 instance on EC2 (official AMI) there is a "No match found" error on line 61 of LinuxMonitor:

String totalMemory = this.fileUtils.runRegexOnFile(TOTAL_MEMORY_PATTERN, "/proc/meminfo");

Example:

# wget http://continuousdelivery.com/downloads/javasysmon/javasysmon-0.3.5.jar

# java -jar javasysmon-0.3.5.jar 
Exception in thread "main" java.lang.IllegalStateException: No match found
    at java.util.regex.Matcher.group(Matcher.java:485)
    at com.jezhumble.javasysmon.FileUtils.runRegexOnFile(FileUtils.java:102)
    at com.jezhumble.javasysmon.LinuxMonitor.osName(LinuxMonitor.java:61)
    at com.jezhumble.javasysmon.JavaSysMon.main(JavaSysMon.java:86)

# cat /proc/meminfo
MemTotal:       15297732 kB
MemFree:          296828 kB
Buffers:          383488 kB
Cached:         12165856 kB
SwapCached:            0 kB
Active:          2534768 kB
Inactive:       10721032 kB
Active(anon):     702588 kB
Inactive(anon):      396 kB
Active(file):    1832180 kB
Inactive(file): 10720636 kB
Unevictable:           0 kB
Mlocked:               0 kB
SwapTotal:             0 kB
SwapFree:              0 kB
Dirty:                40 kB
Writeback:             0 kB
AnonPages:        702436 kB
Mapped:            56456 kB
Shmem:               548 kB
Slab:            1608436 kB
SReclaimable:    1451696 kB
SUnreclaim:       156740 kB
KernelStack:        8144 kB
PageTables:        11024 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:     7648864 kB
Committed_AS:    9523248 kB
VmallocTotal:   34359738367 kB
VmallocUsed:       50292 kB
VmallocChunk:   34359628404 kB
HardwareCorrupted:     0 kB
AnonHugePages:    434176 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:        6144 kB
DirectMap2M:    15722496 kB

# cat /etc/lsb-release
LSB_VERSION=base-4.0-amd64:base-4.0-noarch:core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-noarch

# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 6.6 (Santiago)

# uname -a
Linux rh-fernando 2.6.32-504.8.1.el6.x86_64 #1 SMP Fri Dec 19 12:09:25 EST 2014 x86_64 x86_64 x86_64 GNU/Linux