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log.txt

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Түүх Анхны өгөгдөл

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203 
  1. [2018-07-31 18:41:11] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    2. 

  2. [2018-07-31 18:48:18] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    3. 

  3. [2018-07-31 18:49:35] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    4. 

  4. [2018-07-31 18:50:31] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    5. 

  5. [2018-08-01 09:25:51] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    6. 

  6. [2018-08-01 09:41:52] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    7. 

  7. [2018-08-01 09:51:56] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    8. 

  8. [2018-08-01 09:58:08] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    9. 

  9. [2018-08-01 09:58:30] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    10. 

  10. [2018-08-01 09:58:55] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    11. 

  11. [2018-08-01 10:00:32] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    12. 

  12. [2018-08-01 10:10:38] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    13. 

  13. [2018-08-01 10:12:06] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    14. 

  14. [2018-08-01 10:13:31] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    15. 

  15. [2018-08-01 10:14:54] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    16. 

  16. [2018-08-01 10:15:45] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    17. 

  17. [2018-08-01 10:22:01] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    18. 

  18. [2018-08-01 10:23:51] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    19. 

  19. [2018-08-01 10:25:15] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    20. 

  20. [2018-08-01 10:25:30] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    21. 

  21. [2018-08-01 10:26:59] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    22. 

  22. [2018-08-01 10:29:33] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    23. 

  23. [2018-08-01 10:36:11] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    24. 

  24. [2018-08-01 10:39:47] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    25. 

  25. [2018-08-01 10:41:23] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    26. 

  26. [2018-08-08 19:00:42] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    27. 

  27. [2018-08-08 19:02:19] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    28. 

  28. [2018-08-08 19:03:57] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    29. 

  29. [2018-08-08 19:04:18] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    30. 

  30. [2018-08-08 19:08:49] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    31. 

  31. [2018-08-27 14:25:47] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    32. 

  32. [2018-08-27 14:30:57] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    33. 

  33. [2018-08-27 14:31:13] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    34. 

  34. [2018-08-27 14:32:17] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    35. 

  35. [2018-09-03 16:10:11] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    36. 

  36. [2018-09-03 16:12:59] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    37. 

  37. [2018-09-03 16:14:31] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    38. 

  38. [2018-09-03 16:19:40] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    39. 

  39. [2018-09-03 18:07:29] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    40. 

  40. [2018-10-15 15:02:40] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    41. 

  41. [2018-10-15 15:03:31] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    42. 

  42. [2018-10-15 15:11:47] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    43. 

  43. [2018-10-15 15:11:52] [WARN ] - SQL State '08007' of Exception tested by statusOnException() implies that the database is invalid, and the pool should refill itself with fresh Connections.
    44. 

  44. com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Communications link failure during rollback(). Transaction resolution unknown.
    45. 

  45. 	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    46. 

  46. 	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    47. 

  47. 	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    48. 

  48. 	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    49. 

  49. 	at com.mysql.jdbc.Util.handleNewInstance(Util.java:409)
    50. 

  50. 	at com.mysql.jdbc.Util.getInstance(Util.java:384)
    51. 

  51. 	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1013)
    52. 

  52. 	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:987)
    53. 

  53. 	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:973)
    54. 

  54. 	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:918)
    55. 

  55. 	at com.mysql.jdbc.ConnectionImpl.rollback(ConnectionImpl.java:5086)
    56. 

  56. 	at com.mchange.v2.c3p0.impl.NewProxyConnection.rollback(NewProxyConnection.java:1033)
    57. 

  57. 	at org.springframework.jdbc.datasource.DataSourceTransactionManager.doRollback(DataSourceTransactionManager.java:294)
    58. 

  58. 	at org.springframework.transaction.support.AbstractPlatformTransactionManager.processRollback(AbstractPlatformTransactionManager.java:853)
    59. 

  59. 	at org.springframework.transaction.support.AbstractPlatformTransactionManager.rollback(AbstractPlatformTransactionManager.java:830)
    60. 

  60. 	at org.springframework.test.context.transaction.TransactionContext.endTransaction(TransactionContext.java:125)
    61. 

  61. 	at org.springframework.test.context.transaction.TransactionalTestExecutionListener.afterTestMethod(TransactionalTestExecutionListener.java:227)
    62. 

  62. 	at org.springframework.test.context.TestContextManager.afterTestMethod(TestContextManager.java:319)
    63. 

  63. 	at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:94)
    64. 

  64. 	at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84)
    65. 

  65. 	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
    66. 

  66. 	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:252)
    67. 

  67. 	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:94)
    68. 

  68. 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
    69. 

  69. 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
    70. 

  70. 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
    71. 

  71. 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
    72. 

  72. 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
    73. 

  73. 	at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
    74. 

  74. 	at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
    75. 

  75. 	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
    76. 

  76. 	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:191)
    77. 

  77. 	at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
    78. 

  78. 	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
    79. 

  79. 	at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
    80. 

  80. 	at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
    81. 

  81. 	at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
    82. 

  82. [2018-10-15 15:11:52] [WARN ] - A ConnectionTest has failed, reporting that all previously acquired Connections are likely invalid. The pool will be reset.
    83. 

  83. [2018-10-15 15:11:52] [WARN ] - [c3p0] A PooledConnection that has already signalled a Connection error is still in use!
    84. 

  84. [2018-10-15 15:11:52] [WARN ] - [c3p0] Another error has occurred [ com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operations allowed after connection closed. ] which will not be reported to listeners!
    85. 

  85. com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operations allowed after connection closed.
    86. 

  86. 	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    87. 

  87. 	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    88. 

  88. 	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    89. 

  89. 	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    90. 

  90. 	at com.mysql.jdbc.Util.handleNewInstance(Util.java:409)
    91. 

  91. 	at com.mysql.jdbc.Util.getInstance(Util.java:384)
    92. 

  92. 	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1013)
    93. 

  93. 	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:987)
    94. 

  94. 	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:973)
    95. 

  95. 	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:918)
    96. 

  96. 	at com.mysql.jdbc.ConnectionImpl.throwConnectionClosedException(ConnectionImpl.java:1321)
    97. 

  97. 	at com.mysql.jdbc.ConnectionImpl.checkClosed(ConnectionImpl.java:1313)
    98. 

  98. 	at com.mysql.jdbc.ConnectionImpl.setAutoCommit(ConnectionImpl.java:5311)
    99. 

  99. 	at com.mchange.v2.c3p0.impl.NewProxyConnection.setAutoCommit(NewProxyConnection.java:1059)
    100. 

  100. 	at org.springframework.jdbc.datasource.DataSourceTransactionManager.doCleanupAfterCompletion(DataSourceTransactionManager.java:324)
    101. 

  101. 	at org.springframework.transaction.support.AbstractPlatformTransactionManager.cleanupAfterCompletion(AbstractPlatformTransactionManager.java:1016)
    102. 

  102. 	at org.springframework.transaction.support.AbstractPlatformTransactionManager.processRollback(AbstractPlatformTransactionManager.java:883)
    103. 

  103. 	at org.springframework.transaction.support.AbstractPlatformTransactionManager.rollback(AbstractPlatformTransactionManager.java:830)
    104. 

  104. 	at org.springframework.test.context.transaction.TransactionContext.endTransaction(TransactionContext.java:125)
    105. 

  105. 	at org.springframework.test.context.transaction.TransactionalTestExecutionListener.afterTestMethod(TransactionalTestExecutionListener.java:227)
    106. 

  106. 	at org.springframework.test.context.TestContextManager.afterTestMethod(TestContextManager.java:319)
    107. 

  107. 	at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:94)
    108. 

  108. 	at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84)
    109. 

  109. 	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
    110. 

  110. 	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:252)
    111. 

  111. 	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:94)
    112. 

  112. 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
    113. 

  113. 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
    114. 

  114. 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
    115. 

  115. 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
    116. 

  116. 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
    117. 

  117. 	at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
    118. 

  118. 	at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
    119. 

  119. 	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
    120. 

  120. 	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:191)
    121. 

  121. 	at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
    122. 

  122. 	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
    123. 

  123. 	at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
    124. 

  124. 	at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
    125. 

  125. 	at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
    126. 

  126. Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
    127. 

  127. 

  128. The last packet successfully received from the server was 500,798 milliseconds ago.  The last packet sent successfully to the server was 19,495 milliseconds ago.
    129. 

  129. 	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    130. 

  130. 	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    131. 

  131. 	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    132. 

  132. 	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    133. 

  133. 	at com.mysql.jdbc.Util.handleNewInstance(Util.java:409)
    134. 

  134. 	at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1127)
    135. 

  135. 	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3715)
    136. 

  136. 	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3604)
    137. 

  137. 	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4155)
    138. 

  138. 	at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2615)
    139. 

  139. 	at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2776)
    140. 

  140. 	at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2832)
    141. 

  141. 	at com.mysql.jdbc.ConnectionImpl.rollbackNoChecks(ConnectionImpl.java:5189)
    142. 

  142. 	at com.mysql.jdbc.ConnectionImpl.rollback(ConnectionImpl.java:5072)
    143. 

  143. 	at com.mchange.v2.c3p0.impl.NewProxyConnection.rollback(NewProxyConnection.java:1033)
    144. 

  144. 	at org.springframework.jdbc.datasource.DataSourceTransactionManager.doRollback(DataSourceTransactionManager.java:294)
    145. 

  145. 	at org.springframework.transaction.support.AbstractPlatformTransactionManager.processRollback(AbstractPlatformTransactionManager.java:853)
    146. 

  146. 	... 23 more
    147. 

  147. Caused by: java.net.SocketException: Software caused connection abort: recv failed
    148. 

  148. 	at java.net.SocketInputStream.socketRead0(Native Method)
    149. 

  149. 	at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
    150. 

  150. 	at java.net.SocketInputStream.read(SocketInputStream.java:171)
    151. 

  151. 	at java.net.SocketInputStream.read(SocketInputStream.java:141)
    152. 

  152. 	at com.mysql.jdbc.util.ReadAheadInputStream.fill(ReadAheadInputStream.java:112)
    153. 

  153. 	at com.mysql.jdbc.util.ReadAheadInputStream.readFromUnderlyingStreamIfNecessary(ReadAheadInputStream.java:159)
    154. 

  154. 	at com.mysql.jdbc.util.ReadAheadInputStream.read(ReadAheadInputStream.java:187)
    155. 

  155. 	at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:3158)
    156. 

  156. 	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3615)
    157. 

  157. 	... 33 more
    158. 

  158. [2018-10-15 15:11:52] [WARN ] - A ConnectionTest has failed, reporting that all previously acquired Connections are likely invalid. The pool will be reset.
    159. 

  159. [2018-10-15 15:11:52] [WARN ] - Caught exception while allowing TestExecutionListener [org.springframework.test.context.transaction.TransactionalTestExecutionListener@4c19d42e] to process 'after' execution for test: method [public void UserServiceTest.testImage()], instance [UserServiceTest@373e6b9d], exception [null]
    160. 

  160. org.springframework.transaction.TransactionSystemException: Could not roll back JDBC transaction; nested exception is com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Communications link failure during rollback(). Transaction resolution unknown.
    161. 

  161. 	at org.springframework.jdbc.datasource.DataSourceTransactionManager.doRollback(DataSourceTransactionManager.java:297)
    162. 

  162. 	at org.springframework.transaction.support.AbstractPlatformTransactionManager.processRollback(AbstractPlatformTransactionManager.java:853)
    163. 

  163. 	at org.springframework.transaction.support.AbstractPlatformTransactionManager.rollback(AbstractPlatformTransactionManager.java:830)
    164. 

  164. 	at org.springframework.test.context.transaction.TransactionContext.endTransaction(TransactionContext.java:125)
    165. 

  165. 	at org.springframework.test.context.transaction.TransactionalTestExecutionListener.afterTestMethod(TransactionalTestExecutionListener.java:227)
    166. 

  166. 	at org.springframework.test.context.TestContextManager.afterTestMethod(TestContextManager.java:319)
    167. 

  167. 	at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:94)
    168. 

  168. 	at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84)
    169. 

  169. 	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
    170. 

  170. 	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:252)
    171. 

  171. 	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:94)
    172. 

  172. 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
    173. 

  173. 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
    174. 

  174. 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
    175. 

  175. 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
    176. 

  176. 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
    177. 

  177. 	at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
    178. 

  178. 	at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
    179. 

  179. 	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
    180. 

  180. 	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:191)
    181. 

  181. 	at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
    182. 

  182. 	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
    183. 

  183. 	at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
    184. 

  184. 	at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
    185. 

  185. 	at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
    186. 

  186. Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Communications link failure during rollback(). Transaction resolution unknown.
    187. 

  187. 	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    188. 

  188. 	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    189. 

  189. 	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    190. 

  190. 	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    191. 

  191. 	at com.mysql.jdbc.Util.handleNewInstance(Util.java:409)
    192. 

  192. 	at com.mysql.jdbc.Util.getInstance(Util.java:384)
    193. 

  193. 	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1013)
    194. 

  194. 	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:987)
    195. 

  195. 	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:973)
    196. 

  196. 	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:918)
    197. 

  197. 	at com.mysql.jdbc.ConnectionImpl.rollback(ConnectionImpl.java:5086)
    198. 

  198. 	at com.mchange.v2.c3p0.impl.NewProxyConnection.rollback(NewProxyConnection.java:1033)
    199. 

  199. 	at org.springframework.jdbc.datasource.DataSourceTransactionManager.doRollback(DataSourceTransactionManager.java:294)
    200. 

  200. 	... 24 more
    201. 

  201. [2018-10-15 15:12:55] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    202. 

  202. [2018-10-15 15:18:04] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    203. 

  203. [2018-10-26 10:48:33] [WARN ] - Bad pool size config, start 3 < min 5. Using 5 as start.
    204.