At some point a change was made that affected the output of VerifyBeforeGC and VerifyAfterGC. Previously it was:

[Verifying threads syms strs zone dict hand C-heap code cache ]
 VerifyBeforeGC:[Verifying threads permanent tenured eden syms strs zone dict hand C-heap code cache ]
4.818: [GC [PSYoungGen: 16896K->392K(19712K)] 16896K->396K(62720K), 0.0244147 secs] [Times: user=0.02 sys=0.00, real=0.02 secs]
 VerifyBeforeGC:[Verifying threads permanent tenured eden syms strs zone dict hand C-heap code cache ]
5.087: [GC [PSYoungGen: 17288K->392K(19712K)] 17292K->400K(62720K), 0.0597174 secs] [Times: user=0.04 sys=0.03, real=0.06 secs]
 VerifyBeforeGC:[Verifying threads permanent tenured eden syms strs zone dict hand C-heap code cache ]
5.410: [GC [PSYoungGen: 17288K->400K(19712K)] 17296K->412K(62720K), 0.0173056 secs] [Times: user=0.02 sys=0.00, real=0.02 secs]
 VerifyBeforeGC:[Verifying threads permanent tenured eden syms strs zone dict hand C-heap code cache ]
5.595: [GC [PSYoungGen: 17296K->400K(36608K)] 17308K->416K(79616K), 0.0134239 secs] [Times: user=0.02 sys=0.00, real=0.01 secs]

But is now:

[Verifying threads syms strs zone dict hand C-heap code cache ]
 VerifyBeforeGC:4.619: [GC [PSYoungGen: 16896K->416K(19712K)] 16896K->420K(62720K), 0.0170685 secs] [Times: user=0.02 sys=0.00, real=0.02 secs]
 VerifyBeforeGC:5.013: [GC [PSYoungGen: 17312K->416K(19712K)] 17316K->424K(62720K), 0.0125283 secs] [Times: user=0.02 sys=0.00, real=0.01 secs]
 VerifyBeforeGC:5.239: [GC [PSYoungGen: 17312K->400K(19712K)] 17320K->412K(62720K), 0.0586610 secs] [Times: user=0.04 sys=0.03, real=0.06 secs]
 VerifyBeforeGC:5.439: [GC [PSYoungGen: 17296K->432K(36608K)] 17308K->448K(79616K), 0.0167533 secs] [Times: user=0.02 sys=0.00, real=0.02 secs]
 VerifyBeforeGC:5.721: [GC [PSYoungGen: 34224K->392K(38144K)] 34240K->412K(81152K), 0.0909802 secs] [Times: user=0.05 sys=0.04, real=0.09 secs]
 VerifyBeforeGC:6.034: [GC [PSYoungGen: 35720K->400K(69184K)] 35740K->424K(112192K), 0.0344226 secs] [Times: user=0.04 sys=0.00, real=0.03 secs]
 VerifyBeforeGC:6.709: [GC [PSYoungGen: 69136K->64K(69184K)] 69160K->440K(112192K), 0.1976060 secs] [Times: user=0.10 sys=0.11, real=0.20 secs]