Heap Allocation Profiles (HPROF dump)

SITES BEGIN (ordered by live bytes) Sat Nov  9 11:12:05 2013
          percent          live          alloc'ed  stack class
 rank   self  accum     bytes objs     bytes  objs trace name
    1 60.17% 60.17% 104857616    1 104857616     1 304909 char[]
    2  4.68% 64.84%   8149536   32  10548648  2875 304621 char[]
    3  2.70% 67.55%   4707576 1169  11270760  2690 302136 byte[]
    4  1.85% 69.39%   3216544    2   3216544     2 306117 char[]
    5  1.77% 71.16%   3085400 39912  56684136 741352 302697 char[]
    6  1.36% 72.52%   2372184  476   4781992  1117 302217 byte[]
    7  1.04% 73.56%   1811808 8623  89188584 459946 300026 char[]
    8  0.91% 74.47%   1583480 40014  19166304 686213 304125 char[]
    9  0.85% 75.32%   1487760 61990   1487760 61990 306110 scala.Tuple2
   10  0.78% 76.10%   1354896 9409   1354896  9409 304940 int[]
   11  0.76% 76.86%   1320192 9168  98184960 681840 304477 char[]
   12  0.68% 77.54%   1182224 18818   1429280 34259 304127 char[]
   13  0.60% 78.14%   1053808 18818   1053808 18818 304930 java.lang.Object[]
   14  0.52% 78.66%    903264 9409    903264  9409 304945 int[]
   15  0.51% 79.17%    880128 9168  65456640 681840 304450 int[]
   16  0.43% 79.60%    752720 18818   1370360 34259 304130 java.util.ArrayList$SubList
   17  0.43% 80.03%    752720 18818   1370360 34259 304132 java.util.ArrayList$SubList$1
   18  0.43% 80.46%    752160 10020   6907752 23712 302328 char[]
   19  0.43% 80.89%    743880 30995    743880 30995 306111 scala.collection.mutable.DefaultEntry
   20  0.42% 81.31%    733440 9168  54547200 681840 304390 java.lang.Object[]
   21  0.41% 81.72%    710680  170   1420608   336 300094 byte[]
   22  0.39% 82.11%    682176 28424  17212272 717178 300156 java.util.ArrayList
   23  0.39% 82.50%    677448 9409    677448  9409 304938 java.util.regex.Pattern
   24  0.38% 82.88%    660096 27504  49092480 2045520 304467 java.lang.String
   25  0.38% 83.25%    660096 27504  49092480 2045520 304468 char[]
   26  0.37% 83.62%    643728 26822  16364160 681840 304491 java.lang.String
   27  0.35% 83.97%    602176 9409    602176  9409 304944 java.util.regex.Matcher
   28  0.34% 84.31%    586752 9168  43637760 681840 304449 java.util.regex.Matcher
   29  0.33% 84.64%    581824 9409    581824  9409 304952 char[]
   30  0.30% 84.94%    526904 9409    526904  9409 304941 java.util.regex.Pattern$GroupHead[]
   31  0.30% 85.24%    525184   24    525744    27 304276 scala.collection.mutable.HashEntry[]
   32  0.29% 85.54%    513408 9168  38183040 681840 304447 java.lang.Object[]
   33  0.26% 85.80%    455280 9485  35584896 741352 302694 char[]
   34  0.26% 86.06%    454824 18951  11470032 477918 304711 java.lang.String
   35  0.26% 86.32%    453552 12186   2309936 81608 304147 char[]
   36  0.26% 86.58%    451632 18818    451632 18818 304931 java.lang.String
   37  0.26% 86.84%    451632 18818    451632 18818 304932 java.lang.String
   38  0.26% 87.10%    451632 9409    451632  9409 304948 char[]
   39  0.26% 87.36%    451632 9409    451632  9409 304950 char[]
   40  0.26% 87.61%    446832 18618  32735112 1363963 304009 scala.runtime.RichInt
   41  0.25% 87.87%    440064 9168  32728320 681840 304445 char[]
   42  0.25% 88.12%    440064 9168  32728320 681840 304475 char[]
   43  0.25% 88.37%    440064 9168  32728320 681840 304483 char[]
   44  0.24% 88.61%    417920 13060    417920 13060 306114 org.codehaus.jackson.map.ser.impl.SerializerCache$TypeKey
   45  0.23% 88.84%    396840 16535    396840 16535 304723 scala.collection.mutable.DefaultEntry
   46  0.21% 89.05%    370400 2276    370400  2276 304953 char[]
   47  0.21% 89.26%    366720 9168  27273600 681840 304451 int[]
   48  0.21% 89.47%    366720 9168  27273600 681840 304455 java.util.Formatter$FormatSpecifier
   49  0.17% 89.65%    301088 9409    301088  9409 304939 int[]
   50  0.17% 89.81%    293376 9168  21818880 681840 304446 java.util.Formatter
   51  0.17% 89.98%    293376 9168  21818880 681840 304476 java.util.Formatter$Flags[]
   52  0.16% 90.14%    279432 11643    279432 11643 304732 scala.collection.mutable.DefaultEntry
   53  0.16% 90.30%    274488 9409    274488  9409 304935 char[]
   54  0.16% 90.46%    274208  282    274208   282 304969 char[]
   55  0.15% 90.61%    268968 11207    268968 11207 304492 java.lang.String
   56  0.15% 90.76%    262704    3    525328    25 304624 scala.collection.mutable.HashEntry[]
   57  0.15% 90.91%    253680 1415    561824  3622 300074 byte[]
   58  0.14% 91.05%    251328  476    589776  1117 302216 byte[]
   59  0.14% 91.19%    241632 10068    527016 21959 304728 java.lang.String

And it grows to smaller components...