) 0000M->0000M(0000M), 0.0000000 secs] 0000-00-00T00:00:00.000+0000: 00000.000: [GC concurrent-root-region-scan-start] 0000-00-00T00:00:00.000+0000: 00000.000: [GC concurrent-root-region-scan-end, 0.0000000 secs] 0000-00-00T00:00:00.000+0000: 00000.000: [GC concurrent-mark-start] 0000-00-00T00:00:00.000+0000: 00000.000: [GC pause (young) 0000M->0000M(0000M), 0.0000000 secs] 0000-00-00T00:00:00.000+0000: 00000.000: [GC concurrent-mark-end, 0.0000000 secs] 0000-00-00T00:00:00.000+0000: 00000.000: [GC remark, 00.0000000 secs] 