Mysql Worker panic when bind value is not provided for bind parameter

[stephanievu]

What I Did
The code below does not provide bind value for 2nd bind parameter
String bitustr = "update JAVA2OCC_2 set helix_bit = ?, helix_char = ? where ID = 5";
PreparedStatement pstu2 = oc.prepareStatement(bitustr);
pstu2.setBoolean(1, true);
pstu2.execute();
oc.commit();

What I Expected
I would get error from hera server

What I Saw Instead
Worker panic with error in log
17:10:13.365878 debug: [WORKER 1 cmdprocessor.go:186] process command 86:25 update JAVA2OCC_2 set helix_bit = :helix_bit, helix_char = :helix_char where ID = 5,
17:10:13.365929 verbose: [WORKER 1 cmdprocessor.go:214] Preparing: update JAVA2OCC_2 set helix_bit = ?, helix_char = ? where ID = 5
17:10:13.384405 verbose: [WORKER 1 workerservice.go:199] worker_sp0 : worker read <<< 11:2 helix_bit,
17:10:13.384431 debug: [WORKER 1 cmdprocessor.go:186] process command 11:2 helix_bit,
17:10:13.384458 verbose: [WORKER 1 workerservice.go:199] worker_sp0 : worker read <<< 3:3 ^A,
17:10:13.384472 debug: [WORKER 1 cmdprocessor.go:186] process command 3:3 ^A,
17:10:13.384515 verbose: [WORKER 1 cmdprocessor.go:325] BindValue: :helix_bit : 0 : {^A true}
17:10:13.384536 verbose: [WORKER 1 workerservice.go:199] worker_sp0 : worker read <<< 1:4,
17:10:13.384549 debug: [WORKER 1 cmdprocessor.go:186] process command 1:4,
17:10:13.384570 debug: [WORKER 1 cmdprocessor.go:381] Executing true
17:10:13.384593 debug: [WORKER 1 cmdprocessor.go:382] BINDS [{^A true}]
panic: runtime error: slice bounds out of range

goroutine 1 [running]:
main.(*mysqlAdapter).ProcessError(0x9c4e80, 0x69d280, 0xc42007a9f0, 0xc4200f6980, 0xc4200f6960)
/x/hudson/workspace/occmux_with_go_bin_build64/gomux/src/github.com/paypal/hera/worker/mysqlworker/adapter.go:181 +0x65f
github.com/paypal/hera/worker/shared.(*CmdProcessor).ProcessCmd(0xc4200f6840, 0xc420094280, 0xc42012e150, 0x3)
/x/hudson/workspace/occmux_with_go_bin_build64/gomux/src/github.com/paypal/hera/worker/shared/cmdprocessor.go:401 +0x1c0c
github.com/paypal/hera/worker/shared.runworker(0xc42000e080, 0xc4200f6840, 0xc420085da8)
/x/hudson/workspace/occmux_with_go_bin_build64/gomux/src/github.com/paypal/hera/worker/shared/workerservice.go:204 +0x6f6
github.com/paypal/hera/worker/shared.Start(0x69fa00, 0x9c4e80)
/x/hudson/workspace/occmux_with_go_bin_build64/gomux/src/github.com/paypal/hera/worker/shared/workerservice.go:130 +0x73b
main.main()
/x/hudson/workspace/occmux_with_go_bin_build64/gomux/src/github.com/paypal/hera/worker/mysqlworker/main.go:62 +0x61b
17:10:13.387799 warn: [PROXY workerclient.go:758] workerclient pid= 1421 read error: EOF