Download (incomplete) members: No message about incomplete download after connection broke while downloading

[skyper]

What steps will reproduce the problem?

1. Have a relation editor with an incomplete relation. In my case a PTv2 bus route (​3994553)
2. Download all incomplete members
3. Notice that the download takes some time

What is the expected result?

All incomplete members are downloaded and if not possible a warning appears

What happens instead?

No warning about incomplete download. All downloaded objects are rendered but some objects are missing

Please provide any additional information below. Attach a screenshot if possible.

I noticed this problem running the task from relation editor but I think the same action is used in panels.
In relation manager all members are represented as complete and there is no data inconsitency.

Relative:URL: ^/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2020-05-31 22:25:04 +0200 (Sun, 31 May 2020)
Revision:16535
Build-Date:2020-06-01 01:30:48
URL:https://josm.openstreetmap.de/svn/trunk

Last errors/warnings:
- W: javax.net.ssl.SSLException: Read timed out. Cause: java.net.SocketTimeoutException: Read timed out
- E: javax.net.ssl.SSLException: Read timed out. Cause: java.net.SocketTimeoutException: Read timed out
- E: java.util.concurrent.ExecutionException: org.openstreetmap.josm.io.OsmTransferException: Could not connect to the OSM server. Please check your internet connection.. Cause: org.openstreetmap.josm.io.OsmTransferException: Could not connect to the OSM server. Please check your internet connection.. Cause: javax.net.ssl.SSLException: Read timed out. Cause: java.net.SocketTimeoutException: Read timed out

Terminal output:

2020-06-01 13:48:57.773 INFO: GET https://api.openstreetmap.org/api/0.6/ways?ways=146405816,300582127,171661746,300397166,24831984,60318868,60318871,87263267,4592981,305384992,300582143,300586492,135907727,361394205,300582141,300582129,36726571,300582134,804882789,277791122,101219604,175264751,277791120,24384214,51051694,24384208,179644946,33822115,297294864,24641873,138027027,297294865,629592106,172594532,135706040,4579837,578433984,303544363,87263247,60495526,278415653,176257088,4341632,26803419,305641970,88639502,240876956,659201282,620525366,64613395,33821263,659201287,146412151,659201284,24831786,25121069,251911249,629592148,60821107,300718009,661040947,300718010,804605986,60821113,277783381,629986775,804299920,803750152,24830488,24831512,803750154,803750155,305913432,176392807,25912302,23992075,43144821,300586498,24830482,659425062,300582147,300582145,24830486,809579695,729957228,172418358,61598552,145053904,172594997,300578325 -> HTTP/1.1 200 (223 ms)
2020-06-01 13:48:57.802 INFO: Way 146405816 with 5 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.802 INFO: Way 300582127 with 11 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.803 INFO: Way 171661746 with 16 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.803 INFO: Way 300397166 with 8 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.803 INFO: Way 24831984 with 11 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.804 INFO: Way 60318868 with 6 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.804 INFO: Way 60318871 with 5 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.804 INFO: Way 87263267 with 6 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.804 INFO: Way 4592981 with 2 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.804 INFO: Way 305384992 with 3 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.805 INFO: Way 300582143 with 2 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.805 INFO: Way 135907727 with 11 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.805 INFO: Way 300586492 with 8 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.805 INFO: Way 300582141 with 5 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.805 INFO: Way 361394205 with 5 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.806 INFO: Way 36726571 with 4 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.806 INFO: Way 300582129 with 6 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.806 INFO: Way 101219604 with 5 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.806 INFO: Way 277791122 with 3 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.806 INFO: Way 300582134 with 4 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.807 INFO: Way 804882789 with 27 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.807 INFO: Way 175264751 with 3 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.807 INFO: Way 277791120 with 7 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.807 INFO: Way 24384214 with 9 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.808 INFO: Way 24384208 with 4 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.808 INFO: Way 51051694 with 10 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.808 INFO: Way 33822115 with 9 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.809 INFO: Way 179644946 with 4 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.809 INFO: Way 297294864 with 8 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.809 INFO: Way 24641873 with 9 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.809 INFO: Way 138027027 with 9 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.809 INFO: Way 297294865 with 3 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.810 INFO: Way 629592106 with 10 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.810 INFO: Way 172594532 with 11 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.810 INFO: Way 135706040 with 4 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.810 INFO: Way 4579837 with 2 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.810 INFO: Way 578433984 with 2 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.811 INFO: Way 87263247 with 10 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.811 INFO: Way 303544363 with 5 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.811 INFO: Way 60495526 with 3 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.811 INFO: Way 278415653 with 4 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.811 INFO: Way 176257088 with 2 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.812 INFO: Way 4341632 with 3 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.812 INFO: Way 26803419 with 4 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.812 INFO: Way 305641970 with 5 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.812 INFO: Way 88639502 with 2 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.813 INFO: Way 240876956 with 2 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.813 INFO: Way 659201282 with 2 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.813 INFO: Way 64613395 with 3 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.813 INFO: Way 620525366 with 3 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.814 INFO: Way 33821263 with 3 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.819 INFO: Way 146412151 with 8 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.820 INFO: Way 659201287 with 6 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.822 INFO: Way 659201284 with 6 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.822 INFO: Way 24831786 with 2 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.822 INFO: Way 25121069 with 5 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.823 INFO: Way 251911249 with 3 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.823 INFO: Way 629592148 with 12 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.823 INFO: Way 60821107 with 6 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.823 INFO: Way 300718009 with 2 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.823 INFO: Way 661040947 with 6 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.823 INFO: Way 300718010 with 9 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.824 INFO: Way 804605986 with 2 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.824 INFO: Way 60821113 with 3 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.824 INFO: Way 277783381 with 2 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.824 INFO: Way 629986775 with 4 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.824 INFO: Way 803750152 with 4 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.825 INFO: Way 804299920 with 11 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.825 INFO: Way 24830488 with 4 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.825 INFO: Way 24831512 with 7 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.825 INFO: Way 803750154 with 2 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.825 INFO: Way 305913432 with 5 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.825 INFO: Way 803750155 with 2 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.826 INFO: Way 176392807 with 3 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.826 INFO: Way 23992075 with 6 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.826 INFO: Way 25912302 with 2 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.826 INFO: Way 43144821 with 2 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.826 INFO: Way 24830482 with 6 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.826 INFO: Way 300586498 with 12 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.827 INFO: Way 659425062 with 4 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.827 INFO: Way 300582147 with 5 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.827 INFO: Way 300582145 with 2 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.827 INFO: Way 24830486 with 3 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.827 INFO: Way 729957228 with 6 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.828 INFO: Way 809579695 with 15 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.828 INFO: Way 172418358 with 2 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.828 INFO: Way 61598552 with 5 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.828 INFO: Way 145053904 with 3 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.828 INFO: Way 172594997 with 7 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:57.828 INFO: Way 300578325 with 2 nodes is incomplete because at least one node was missing in the loaded data.
2020-06-01 13:48:58.029 INFO: GET https://api.openstreetmap.org/api/0.6/nodes?nodes=392757609,3026172767,392757611,763640704,7523124845,3026172762,7523124846,5912298081,1239301848,7523124847,5912298080,1405928651,3026172759,3028570765,5907007261,3026172758,3028570766,5907007263,7523124838,1405928642,3011565971,1000111503,269771523,1172909809,942754347,28933026,26432435,5907007284,26432433,26432432,942754325,26432439,544158282,3026172794,2011150841,26432437,26642366,274882378,26642367,3026172785,2012217566,2022797247,294030263,268456498,5912298068,273468025,273468026,942754315,7532730048,942754417,3658754134,3658754135,26642387,392748325,268456528,405679742,544158268,26642369,3658755186,269756029,269756030,3658755175,387458415,387451233,3658755176,5904989578,3658755177,3658755178,1000111587,269756054,942754482,269756049,269756050,5904989553,1420497452,942754491,26307355,26307357,26307356,26307359,26307358,269756036,269756037,269756038,269756039,269756032,269756034,269756035,4086137109,4086137108,269756040,269756041,294030107,294030105,942754451,26307379,1000111419,1405928807,268456366,3217893986,289796330,26307361,1172764759,1172764756,26307363,26307362,26307365,268455349,26307364,1173092445,26307367,26307366,942772617,1172764767,26307368,752118382,1172764763,7329560156,942754444,1172909911,294030136,5943894920,6171791646,387451354,289799302,6171791644,289799297,6171791643,289799296,289799298,273146255,5943894912,273146254,268453321,1172909856,282670610,793786012,7152833414,4678005509,1172938553,6354650903,942754531,268456659,5943894941,767538282,1172938556,6354650910,768221207,5943894935,942754286,1405928748,3658748924,294028399,1000111735,269771519,7517795058,268455404,763640680,3658748921,7329560076,3658748922,4839697048,3658748923,386184693,294028414,1173092370,2022797677,1115253636,7515561225,1172909846 -> HTTP/1.1 200 (183 ms)
2020-06-01 13:48:58.033 INFO: GET https://api.openstreetmap.org/api/0.6/nodes?nodes=1173092587,1115253625,26314896,289800258,942772533,1115253629,3316164780,289800259,3316164781,3316164782,1490016453,274883688,274882664,274881896,1490016452,1490016450,273514560,3316164774,273514562,269759771,268456208,1173092601,6724819142,1173092607,7553589039,294028434,3316164784,768221394,26314888,3316164785,757494847,1834832966,3316164788,3316164789,274881917,1173092596,268455201,26314928,268456226,405858324,5943894893,5943894894,269767741,2013645868,3100083437,269767742,761371723,1494798643,269767743,793785979,5943894905,5943894907,5943894906,768945377,5943894909,268453173,1494798639,5943894910,1490016502,5943894896,269759789,1490016500,1490016499,26314925,1173092567,26314924,5943894903,5943894902,26314926,3258051440,1976418441,289796352,6544200535,5943894531,3044774961,443269664,443269670,5943894553,757494902,3044774954,3044774952,28935661,289796369,269767744,3044774959,3044774958,3044774956,3044774947,2022705354,3044774945,3044774944,3044774951,5943894551,3258051439,3044774949,5943894550,1895536804,520183390,5943894569,3044774939,5943894568,3044774938,7152833074,7152833075,3044774942,1173092493,267864720,5943894561,2022797560,2093462698,7537340718,5943894567,5943894566,36329029,942772574,768221349,273514557,1490016447,273514559,273514558,443269663,757494866,942772550,294028529,7574768384,5913749761,5862587667,5913749760,1834844450,1173092718,5913749750,5913749744,274883055,5913749747,1417631217,5913749746,268454031,1173092734,1404315425,1404315426,1173092476,1173092725,793786063,3217893997,1000111676,5018646402,797210407,899548221,264585069,899548215,1173092418,264585071,3217893990,603367258,264585066,1000111916,264585072,3220582208,29041932,3220582218,264585080,268459201,1173092671,768221470,264585007,264585006,756924914,899560808,1029256611,268453119 -> HTTP/1.1 200 (188 ms)
2020-06-01 13:49:28.116 INFO: GET https://api.openstreetmap.org/api/0.6/nodes?nodes=4032548827,938901622,4032548829,4032548828,764700190,2907113163,5913812976,1834853074,1499409100,764700172,269769609,269769610,268455846,1172938318,265555068,5913812950,5907007268,26759848,1172938459,5907007271,5907007264,1239301866,3026172779,1172938461,5907007265,5907007266,3026172777,5907007267,1172938320,2580646635,5907007272,1239301858,938901707,2580646636,3026172769,1173379632,386841806,5913812925,5913812926,794417307,767427197,794417309,794417310,1869303847,794417303,794417302,405653500,938901668,1173379619,2122981854,7159767447,7209067245,3074607135,767427168,269769588,26621686,767427166,269769589,6389076785,938901649,273511210,5590798037,5590798036,269769599,26621690,1622781780,5590798035,5907008485,5907008486,1622781773,761545245,26621674,3046515306,26621675,26621673 -> !!! (30.1 s)
2020-06-01 13:49:28.117 WARNING: javax.net.ssl.SSLException: Read timed out. Cause: java.net.SocketTimeoutException: Read timed out
javax.net.ssl.SSLException: Read timed out
	at java.base/sun.security.ssl.Alert.createSSLException(Alert.java:127)
	at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:326)
	at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:269)
	at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:264)
	at java.base/sun.security.ssl.SSLTransport.decode(SSLTransport.java:137)
	at java.base/sun.security.ssl.SSLSocketImpl.decode(SSLSocketImpl.java:1144)
	at java.base/sun.security.ssl.SSLSocketImpl.readHandshakeRecord(SSLSocketImpl.java:1055)
	at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:395)
	at java.base/sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:567)
	at java.base/sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185)
	at java.base/sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:168)
	at org.openstreetmap.josm.tools.Http1Client.performConnection(Http1Client.java:78)
	at org.openstreetmap.josm.tools.HttpClient.connect(HttpClient.java:148)
	at org.openstreetmap.josm.io.OsmServerReader.getInputStreamRaw(OsmServerReader.java:195)
	at org.openstreetmap.josm.io.OsmServerReader.getInputStreamRaw(OsmServerReader.java:138)
	at org.openstreetmap.josm.io.OsmServerReader.getInputStreamRaw(OsmServerReader.java:122)
	at org.openstreetmap.josm.io.OsmServerReader.getInputStream(OsmServerReader.java:86)
	at org.openstreetmap.josm.io.OsmServerReader.getInputStream(OsmServerReader.java:69)
	at org.openstreetmap.josm.io.MultiFetchServerObjectReader$Fetcher.multiGetIdPackage(MultiFetchServerObjectReader.java:614)
	at org.openstreetmap.josm.io.MultiFetchServerObjectReader$Fetcher.fetch(MultiFetchServerObjectReader.java:572)
	at org.openstreetmap.josm.io.MultiFetchServerObjectReader$Fetcher.call(MultiFetchServerObjectReader.java:561)
	at org.openstreetmap.josm.io.MultiFetchServerObjectReader$Fetcher.call(MultiFetchServerObjectReader.java:533)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.net.SocketTimeoutException: Read timed out
	at java.base/java.net.SocketInputStream.socketRead0(Native Method)
	at java.base/java.net.SocketInputStream.socketRead(SocketInputStream.java:115)
	at java.base/java.net.SocketInputStream.read(SocketInputStream.java:168)
	at java.base/java.net.SocketInputStream.read(SocketInputStream.java:140)
	at java.base/sun.security.ssl.SSLSocketInputRecord.read(SSLSocketInputRecord.java:448)
	at java.base/sun.security.ssl.SSLSocketInputRecord.decode(SSLSocketInputRecord.java:165)
	at java.base/sun.security.ssl.SSLTransport.decode(SSLTransport.java:108)
	... 23 more

2020-06-01 13:49:28.118 SEVERE: javax.net.ssl.SSLException: Read timed out. Cause: java.net.SocketTimeoutException: Read timed out
javax.net.ssl.SSLException: Read timed out
	at java.base/sun.security.ssl.Alert.createSSLException(Alert.java:127)
	at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:326)
	at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:269)
	at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:264)
	at java.base/sun.security.ssl.SSLTransport.decode(SSLTransport.java:137)
	at java.base/sun.security.ssl.SSLSocketImpl.decode(SSLSocketImpl.java:1144)
	at java.base/sun.security.ssl.SSLSocketImpl.readHandshakeRecord(SSLSocketImpl.java:1055)
	at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:395)
	at java.base/sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:567)
	at java.base/sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185)
	at java.base/sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:168)
	at org.openstreetmap.josm.tools.Http1Client.performConnection(Http1Client.java:78)
	at org.openstreetmap.josm.tools.HttpClient.connect(HttpClient.java:148)
	at org.openstreetmap.josm.io.OsmServerReader.getInputStreamRaw(OsmServerReader.java:195)
	at org.openstreetmap.josm.io.OsmServerReader.getInputStreamRaw(OsmServerReader.java:138)
	at org.openstreetmap.josm.io.OsmServerReader.getInputStreamRaw(OsmServerReader.java:122)
	at org.openstreetmap.josm.io.OsmServerReader.getInputStream(OsmServerReader.java:86)
	at org.openstreetmap.josm.io.OsmServerReader.getInputStream(OsmServerReader.java:69)
	at org.openstreetmap.josm.io.MultiFetchServerObjectReader$Fetcher.multiGetIdPackage(MultiFetchServerObjectReader.java:614)
	at org.openstreetmap.josm.io.MultiFetchServerObjectReader$Fetcher.fetch(MultiFetchServerObjectReader.java:572)
	at org.openstreetmap.josm.io.MultiFetchServerObjectReader$Fetcher.call(MultiFetchServerObjectReader.java:561)
	at org.openstreetmap.josm.io.MultiFetchServerObjectReader$Fetcher.call(MultiFetchServerObjectReader.java:533)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.net.SocketTimeoutException: Read timed out
	at java.base/java.net.SocketInputStream.socketRead0(Native Method)
	at java.base/java.net.SocketInputStream.socketRead(SocketInputStream.java:115)
	at java.base/java.net.SocketInputStream.read(SocketInputStream.java:168)
	at java.base/java.net.SocketInputStream.read(SocketInputStream.java:140)
	at java.base/sun.security.ssl.SSLSocketInputRecord.read(SSLSocketInputRecord.java:448)
	at java.base/sun.security.ssl.SSLSocketInputRecord.decode(SSLSocketInputRecord.java:165)
	at java.base/sun.security.ssl.SSLTransport.decode(SSLTransport.java:108)
	... 23 more

2020-06-01 13:49:28.120 SEVERE: java.util.concurrent.ExecutionException: org.openstreetmap.josm.io.OsmTransferException: Could not connect to the OSM server. Please check your internet connection.. Cause: org.openstreetmap.josm.io.OsmTransferException: Could not connect to the OSM server. Please check your internet connection.. Cause: javax.net.ssl.SSLException: Read timed out. Cause: java.net.SocketTimeoutException: Read timed out
java.util.concurrent.ExecutionException: org.openstreetmap.josm.io.OsmTransferException: Could not connect to the OSM server. Please check your internet connection.
	at java.base/java.util.concurrent.FutureTask.report(FutureTask.java:122)
	at java.base/java.util.concurrent.FutureTask.get(FutureTask.java:191)
	at org.openstreetmap.josm.io.MultiFetchServerObjectReader.fetchPrimitives(MultiFetchServerObjectReader.java:333)
	at org.openstreetmap.josm.io.MultiFetchServerObjectReader.parseOsm(MultiFetchServerObjectReader.java:399)
	at org.openstreetmap.josm.gui.dialogs.relation.DownloadRelationMemberTask.realRun(DownloadRelationMemberTask.java:137)
	at org.openstreetmap.josm.gui.PleaseWaitRunnable.doRealRun(PleaseWaitRunnable.java:94)
	at org.openstreetmap.josm.gui.PleaseWaitRunnable.run(PleaseWaitRunnable.java:142)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: org.openstreetmap.josm.io.OsmTransferException: Could not connect to the OSM server. Please check your internet connection.
	at org.openstreetmap.josm.io.OsmServerReader.getInputStreamRaw(OsmServerReader.java:200)
	at org.openstreetmap.josm.io.OsmServerReader.getInputStreamRaw(OsmServerReader.java:138)
	at org.openstreetmap.josm.io.OsmServerReader.getInputStreamRaw(OsmServerReader.java:122)
	at org.openstreetmap.josm.io.OsmServerReader.getInputStream(OsmServerReader.java:86)
	at org.openstreetmap.josm.io.OsmServerReader.getInputStream(OsmServerReader.java:69)
	at org.openstreetmap.josm.io.MultiFetchServerObjectReader$Fetcher.multiGetIdPackage(MultiFetchServerObjectReader.java:614)
	at org.openstreetmap.josm.io.MultiFetchServerObjectReader$Fetcher.fetch(MultiFetchServerObjectReader.java:572)
	at org.openstreetmap.josm.io.MultiFetchServerObjectReader$Fetcher.call(MultiFetchServerObjectReader.java:561)
	at org.openstreetmap.josm.io.MultiFetchServerObjectReader$Fetcher.call(MultiFetchServerObjectReader.java:533)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
	... 5 more
Caused by: javax.net.ssl.SSLException: Read timed out
	at java.base/sun.security.ssl.Alert.createSSLException(Alert.java:127)
	at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:326)
	at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:269)
	at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:264)
	at java.base/sun.security.ssl.SSLTransport.decode(SSLTransport.java:137)
	at java.base/sun.security.ssl.SSLSocketImpl.decode(SSLSocketImpl.java:1144)
	at java.base/sun.security.ssl.SSLSocketImpl.readHandshakeRecord(SSLSocketImpl.java:1055)
	at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:395)
	at java.base/sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:567)
	at java.base/sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185)
	at java.base/sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:168)
	at org.openstreetmap.josm.tools.Http1Client.performConnection(Http1Client.java:78)
	at org.openstreetmap.josm.tools.HttpClient.connect(HttpClient.java:148)
	at org.openstreetmap.josm.io.OsmServerReader.getInputStreamRaw(OsmServerReader.java:195)
	... 14 more
Caused by: java.net.SocketTimeoutException: Read timed out
	at java.base/java.net.SocketInputStream.socketRead0(Native Method)
	at java.base/java.net.SocketInputStream.socketRead(SocketInputStream.java:115)
	at java.base/java.net.SocketInputStream.read(SocketInputStream.java:168)
	at java.base/java.net.SocketInputStream.read(SocketInputStream.java:140)
	at java.base/sun.security.ssl.SSLSocketInputRecord.read(SSLSocketInputRecord.java:448)
	at java.base/sun.security.ssl.SSLSocketInputRecord.decode(SSLSocketInputRecord.java:165)
	at java.base/sun.security.ssl.SSLTransport.decode(SSLTransport.java:108)
	... 23 more

[skyper]

screenshot: left complete, right incomplete

[skyper]

resulting incomplete data