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Docker running unknown containers

Dear folks
Sorry for my ignorance, I am a novice exploring Docker to pilot it.
It might be eventually normal but it is so strange for me that I thought to file a question in this forum: Docker does run some unknown containers and not sure about their validity nor usefullness. Sometimes it runs 1 unknown container and sometimes more.

Here is an example:
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
7d9026481f68 1fd689c26394 “/bin/sh -c 'java - …” 5 minutes ago Exited (1) 5 minutes ago stoic_antonelli

Issue type: Cannot qualify really.

OS Version/build: ubuntu 19:10

App version: Any.

Steps to reproduce: random

and when I run docker inspect on this container, I get the following below details.
Thanks in advance for any help/hints.
Regards.

dev@win:~/Desktop$ docker inspect 7d9026481f68
[
{
“Id”: “7d9026481f686a1a6d0e73a544bb4e5ce7c6ac45e3e4d97bad4ce23352f297bd”,
“Created”: “2020-02-11T22:01:58.295242844Z”,
“Path”: “/bin/sh”,
“Args”: [
“-c”,
“java - jar /home/someJar-0.0.1.jar”
],
“State”: {
“Status”: “exited”,
“Running”: false,
“Paused”: false,
“Restarting”: false,
“OOMKilled”: false,
“Dead”: false,
“Pid”: 0,
“ExitCode”: 1,
“Error”: “”,
“StartedAt”: “2020-02-11T22:01:58.986990501Z”,
“FinishedAt”: “2020-02-11T22:01:59.021556499Z”
},
“Image”: “sha256:1fd689c2639446bcdef6bd18c67954e144b7130aefb882ecaa804e01c14eb37b”,
“ResolvConfPath”: “/var/lib/docker/containers/7d9026481f686a1a6d0e73a544bb4e5ce7c6ac45e3e4d97bad4ce23352f297bd/resolv.conf”,
“HostnamePath”: “/var/lib/docker/containers/7d9026481f686a1a6d0e73a544bb4e5ce7c6ac45e3e4d97bad4ce23352f297bd/hostname”,
“HostsPath”: “/var/lib/docker/containers/7d9026481f686a1a6d0e73a544bb4e5ce7c6ac45e3e4d97bad4ce23352f297bd/hosts”,
“LogPath”: “”,
“Name”: “/stoic_antonelli”,
“RestartCount”: 0,
“Driver”: “overlay2”,
“Platform”: “linux”,
“MountLabel”: “”,
“ProcessLabel”: “”,
“AppArmorProfile”: “docker-default”,
“ExecIDs”: null,
“HostConfig”: {
“Binds”: null,
“ContainerIDFile”: “”,
“LogConfig”: {
“Type”: “none”,
“Config”: {}
},
“NetworkMode”: “default”,
“PortBindings”: null,
“RestartPolicy”: {
“Name”: “”,
“MaximumRetryCount”: 0
},
“AutoRemove”: false,
“VolumeDriver”: “”,
“VolumesFrom”: null,
“CapAdd”: null,
“CapDrop”: null,
“Capabilities”: null,
“Dns”: null,
“DnsOptions”: null,
“DnsSearch”: null,
“ExtraHosts”: null,
“GroupAdd”: null,
“IpcMode”: “private”,
“Cgroup”: “”,
“Links”: null,
“OomScoreAdj”: 0,
“PidMode”: “”,
“Privileged”: false,
“PublishAllPorts”: false,
“ReadonlyRootfs”: false,
“SecurityOpt”: null,
“UTSMode”: “”,
“UsernsMode”: “”,
“ShmSize”: 67108864,
“Runtime”: “runc”,
“ConsoleSize”: [
0,
0
],
“Isolation”: “”,
“CpuShares”: 0,
“Memory”: 0,
“NanoCpus”: 0,
“CgroupParent”: “”,
“BlkioWeight”: 0,
“BlkioWeightDevice”: null,
“BlkioDeviceReadBps”: null,
“BlkioDeviceWriteBps”: null,
“BlkioDeviceReadIOps”: null,
“BlkioDeviceWriteIOps”: null,
“CpuPeriod”: 0,
“CpuQuota”: 0,
“CpuRealtimePeriod”: 0,
“CpuRealtimeRuntime”: 0,
“CpusetCpus”: “”,
“CpusetMems”: “”,
“Devices”: null,
“DeviceCgroupRules”: null,
“DeviceRequests”: null,
“KernelMemory”: 0,
“KernelMemoryTCP”: 0,
“MemoryReservation”: 0,
“MemorySwap”: 0,
“MemorySwappiness”: null,
“OomKillDisable”: false,
“PidsLimit”: null,
“Ulimits”: null,
“CpuCount”: 0,
“CpuPercent”: 0,
“IOMaximumIOps”: 0,
“IOMaximumBandwidth”: 0,
“MaskedPaths”: [
“/proc/asound”,
“/proc/acpi”,
“/proc/kcore”,
“/proc/keys”,
“/proc/latency_stats”,
“/proc/timer_list”,
“/proc/timer_stats”,
“/proc/sched_debug”,
“/proc/scsi”,
“/sys/firmware”
],
“ReadonlyPaths”: [
“/proc/bus”,
“/proc/fs”,
“/proc/irq”,
“/proc/sys”,
“/proc/sysrq-trigger”
]
},
“GraphDriver”: {
“Data”: {
“LowerDir”: “/var/lib/docker/overlay2/0c202664a9a8b1485628d9eabdcc78aa1a1d4ffec9931b40218094db3c25cda9-init/diff:/var/lib/docker/overlay2/740823a6137e581f94c5edf770a658f7c80d5d988ba5e4d0d828d9e6ae6e5fb8/diff:/var/lib/docker/overlay2/ea77d90f1d600317b0961d160c0bd12004fe6d2856b4526a99a7f62631ad0ec8/diff:/var/lib/docker/overlay2/057559768ca4f37f6268fbdc76dc10e18285c1174d54d3cb363606a973a9a9a8/diff:/var/lib/docker/overlay2/6bf358c83e2eeebb20c22449eb3450fc3348e14b5052072610839d869cac7731/diff:/var/lib/docker/overlay2/4e796a75233e6702ffa19ca8afc781c8b6771429f2272af42f0bf3dfdda61866/diff:/var/lib/docker/overlay2/acca997647defb06d24ae66e3a8dd6cda34c4966f126f80d9170c8c2af0178bd/diff:/var/lib/docker/overlay2/0a1b46b8c18714a81a788caa98ac5866dfedcb6bdb2b16923c53d361bf3e0991/diff:/var/lib/docker/overlay2/5359ad8b8af01cbcc2f2fdcbfa4cd0a1ef74d9b0da071750a62b6786a407dbae/diff:/var/lib/docker/overlay2/9e6b6fa04830c6ca4c4826abcb9af0bee46d342e66d903f04a3f1d01846aed4a/diff”,
“MergedDir”: “/var/lib/docker/overlay2/0c202664a9a8b1485628d9eabdcc78aa1a1d4ffec9931b40218094db3c25cda9/merged”,
“UpperDir”: “/var/lib/docker/overlay2/0c202664a9a8b1485628d9eabdcc78aa1a1d4ffec9931b40218094db3c25cda9/diff”,
“WorkDir”: “/var/lib/docker/overlay2/0c202664a9a8b1485628d9eabdcc78aa1a1d4ffec9931b40218094db3c25cda9/work”
},
“Name”: “overlay2”
},
“Mounts”: ,
“Config”: {
“Hostname”: “33842653d6db”,
“Domainname”: “”,
“User”: “”,
“AttachStdin”: false,
“AttachStdout”: false,
“AttachStderr”: false,
“ExposedPorts”: {
“8888/tcp”: {}
},
“Tty”: false,
“OpenStdin”: false,
“StdinOnce”: false,
“Env”: [
“PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin”,
“LANG=C.UTF-8”,
“JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64”,
“JAVA_VERSION=8u111”,
“JAVA_DEBIAN_VERSION=8u111-b14-2~bpo8+1”,
“CA_CERTIFICATES_JAVA_VERSION=20140324”
],
“Cmd”: [
“/bin/sh”,
“-c”,
“java - jar /home/someJar-0.0.1.jar”
],
“Healthcheck”: {
“Test”: [
“NONE”
]
},
“Image”: “sha256:1fd689c2639446bcdef6bd18c67954e144b7130aefb882ecaa804e01c14eb37b”,
“Volumes”: null,
“WorkingDir”: “”,
“Entrypoint”: null,
“OnBuild”: ,
“Labels”: {}
},
“NetworkSettings”: {
“Bridge”: “”,
“SandboxID”: “94f61d0fb6a5ddfa5061dc493d37683ee9f494dbed6fb9551633dc6bb863cf4c”,
“HairpinMode”: false,
“LinkLocalIPv6Address”: “”,
“LinkLocalIPv6PrefixLen”: 0,
“Ports”: {},
“SandboxKey”: “/var/run/docker/netns/94f61d0fb6a5”,
“SecondaryIPAddresses”: null,
“SecondaryIPv6Addresses”: null,
“EndpointID”: “”,
“Gateway”: “”,
“GlobalIPv6Address”: “”,
“GlobalIPv6PrefixLen”: 0,
“IPAddress”: “”,
“IPPrefixLen”: 0,
“IPv6Gateway”: “”,
“MacAddress”: “”,
“Networks”: {
“bridge”: {
“IPAMConfig”: null,
“Links”: null,
“Aliases”: null,
“NetworkID”: “b9c6dd2a42a320b56266ca97d9de4eabd34f8e015372c2b9e255522bfa70014d”,
“EndpointID”: “”,
“Gateway”: “”,
“IPAddress”: “”,
“IPPrefixLen”: 0,
“IPv6Gateway”: “”,
“GlobalIPv6Address”: “”,
“GlobalIPv6PrefixLen”: 0,
“MacAddress”: “”,
“DriverOpts”: null
}
}
}
}
]