springboot启动报错：create a memory leak. Stack trace of thread:(DubboResponseTimeoutScanTimer)
2019-08-08 18:19:24.050 INFO 20344 — [ main] com.alibaba.druid.pool.DruidDataSource : {dataSource-1} inited
Parsed mapper file: ‘file [D:\anmo\goods-service\target\classes\mapper\goods\ActivityDao.xml]’
2019-08-08 18:19:24.457 INFO 20344 — [ main] com.alibaba.druid.pool.DruidDataSource : {dataSource-1} closed
2019-08-08 18:19:24.461 INFO 20344 — [ main] o.apache.catalina.core.StandardService : Stopping service [Tomcat]
2019-08-08 18:19:24.463 INFO 20344 — [ost-startStop-1] io.anmo.listener.DubboServiceListener : 销毁dubbo实例中…
2019-08-08 18:19:24.501 INFO 20344 — [tor-Framework-0] o.a.c.f.imps.CuratorFrameworkImpl : backgroundOperationsLoop exiting
2019-08-08 18:19:24.518 INFO 20344 — [ain-EventThread] org.apache.zookeeper.ClientCnxn : EventThread shut down for session: 0x100000a3ac50134
2019-08-08 18:19:24.518 INFO 20344 — [ost-startStop-1] org.apache.zookeeper.ZooKeeper : Session: 0x100000a3ac50134 closed
2019-08-08 18:19:24.533 INFO 20344 — [ost-startStop-1] io.anmo.listener.DubboServiceListener : 销毁dubbo服务完成！
2019-08-08 18:19:24.535 WARN 20344 — [ost-startStop-1] o.a.c.loader.WebappClassLoaderBase : The web application [goods-service] appears to have started a thread named [DubboResponseTimeoutScanTimer] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
java.lang.Thread.sleep(Native Method)
com.alibaba.dubbo.remoting.exchange.support.DefaultFuture
R
e
m
o
t
i
n
g
I
n
v
o
c
a
t
i
o
n
T
i
m
e
o
u
t
S
c
a
n
.
r
u
n
(
D
e
f
a
u
l
t
F
u
t
u
r
e
.
j
a
v
a
:
301
)
j
a
v
a
.
l
a
n
g
.
T
h
r
e
a
d
.
r
u
n
(
T
h
r
e
a
d
.
j
a
v
a
:
748
)
2019
−
08
−
0818
:
19
:
24.536
W
A
R
N
20344
−
−
−
[
o
s
t
−
s
t
a
r
t
S
t
o
p
−
1
]
o
.
a
.
c
.
l
o
a
d
e
r
.
W
e
b
a
p
p
C
l
a
s
s
L
o
a
d
e
r
B
a
s
e
:
T
h
e
w
e
b
a
p
p
l
i
c
a
t
i
o
n
[
g
o
o
d
s
−
s
e
r
v
i
c
e
]
a
p
p
e
a
r
s
t
o
h
a
v
e
s
t
a
r
t
e
d
a
t
h
r
e
a
d
n
a
m
e
d
[
D
u
b
b
o
S
h
a
r
e
d
H
a
n
d
l
e
r
−
t
h
r
e
a
d
−
1
]
b
u
t
h
a
s
f
a
i
l
e
d
t
o
s
t
o
p
i
t
.
T
h
i
s
i
s
v
e
r
y
l
i
k
e
l
y
t
o
c
r
e
a
t
e
a
m
e
m
o
r
y
l
e
a
k
.
S
t
a
c
k
t
r
a
c
e
o
f
t
h
r
e
a
d
:
s
u
n
.
m
i
s
c
.
U
n
s
a
f
e
.
p
a
r
k
(
N
a
t
i
v
e
M
e
t
h
o
d
)
j
a
v
a
.
u
t
i
l
.
c
o
n
c
u
r
r
e
n
t
.
l
o
c
k
s
.
L
o
c
k
S
u
p
p
o
r
t
.
p
a
r
k
N
a
n
o
s
(
L
o
c
k
S
u
p
p
o
r
t
.
j
a
v
a
:
215
)
j
a
v
a
.
u
t
i
l
.
c
o
n
c
u
r
r
e
n
t
.
S
y
n
c
h
r
o
n
o
u
s
Q
u
e
u
e
RemotingInvocationTimeoutScan.run(DefaultFuture.java:301) java.lang.Thread.run(Thread.java:748) 2019-08-08 18:19:24.536 WARN 20344 --- [ost-startStop-1] o.a.c.loader.WebappClassLoaderBase : The web application [goods-service] appears to have started a thread named [DubboSharedHandler-thread-1] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread: sun.misc.Unsafe.park(Native Method) java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215) java.util.concurrent.SynchronousQueue
RemotingInvocationTimeoutScan.run(DefaultFuture.java:301)java.lang.Thread.run(Thread.java:748)2019−08−0818:19:24.536WARN20344−−−[ost−startStop−1]o.a.c.loader.WebappClassLoaderBase:Thewebapplication[goods−service]appearstohavestartedathreadnamed[DubboSharedHandler−thread−1]buthasfailedtostopit.Thisisverylikelytocreateamemoryleak.Stacktraceofthread:sun.misc.Unsafe.park(NativeMethod)java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)java.util.concurrent.SynchronousQueueTransferStack.awaitFulfill(SynchronousQueue.java:460)
java.util.concurrent.SynchronousQueue
T
r
a
n
s
f
e
r
S
t
a
c
k
.
t
r
a
n
s
f
e
r
(
S
y
n
c
h
r
o
n
o
u
s
Q
u
e
u
e
.
j
a
v
a
:
362
)
j
a
v
a
.
u
t
i
l
.
c
o
n
c
u
r
r
e
n
t
.
S
y
n
c
h
r
o
n
o
u
s
Q
u
e
u
e
.
p
o
l
l
(
S
y
n
c
h
r
o
n
o
u
s
Q
u
e
u
e
.
j
a
v
a
:
941
)
j
a
v
a
.
u
t
i
l
.
c
o
n
c
u
r
r
e
n
t
.
T
h
r
e
a
d
P
o
o
l
E
x
e
c
u
t
o
r
.
g
e
t
T
a
s
k
(
T
h
r
e
a
d
P
o
o
l
E
x
e
c
u
t
o
r
.
j
a
v
a
:
1073
)
j
a
v
a
.
u
t
i
l
.
c
o
n
c
u
r
r
e
n
t
.
T
h
r
e
a
d
P
o
o
l
E
x
e
c
u
t
o
r
.
r
u
n
W
o
r
k
e
r
(
T
h
r
e
a
d
P
o
o
l
E
x
e
c
u
t
o
r
.
j
a
v
a
:
1134
)
j
a
v
a
.
u
t
i
l
.
c
o
n
c
u
r
r
e
n
t
.
T
h
r
e
a
d
P
o
o
l
E
x
e
c
u
t
o
r
TransferStack.transfer(SynchronousQueue.java:362) java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:941) java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1073) java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134) java.util.concurrent.ThreadPoolExecutor
TransferStack.transfer(SynchronousQueue.java:362)java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:941)java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1073)java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)java.util.concurrent.ThreadPoolExecutorWorker.run(ThreadPoolExecutor.java:624)
java.lang.Thread.run(Thread.java:748)
项目采用的是springboot + dubbo框架
可能有两种情况会报这种错：
1.mybatis中的xml文件映射或者类路径错了
2.在controller中的访问路径重复了
自己检查了好久才发现！