serialization - Using Kryo to Serialize Classes with Non Serializable Attributes -


i using kryo serializer serializing java object

my java object this

class {  private class b; private class c; private class d; int x ; int y; }

b, c , d third party libraries , not serializable . cant edit code .

i using kryo serialize a = new (); //populate properties of kryo kryo = new kryo(); output output = new output(new fileoutputstream("file.bin")); kryo.writeclassandobject(output, ); output.close();

and deserialize

    input = new com.esotericsoftware.kryo.io.input(new fileinputstream("file.bin"));         inputqueuemanagerimpl inputqueue = (a) kryo.readclassandobject(input);//, a.class);         input.close();

while executing , concurrentmodificationexception

    @ apache.application.main(application.java:43) caused by: com.esotericsoftware.kryo.kryoexception: java.util.concurrentmodificationexception serialization trace: classes (sun.misc.launcher$appclassloader) contextclassloader (java.lang.thread) threads (java.lang.threadgroup) parent (java.lang.threadgroup) group (java.util.concurrent.executors$defaultthreadfactory) threadfactory (java.util.concurrent.threadpoolexecutor) executor (com.rabbitmq.client.impl.consumerworkservice) workservice (com.rabbitmq.client.impl.consumerdispatcher) dispatcher (com.rabbitmq.client.impl.channeln) _channelmap (com.rabbitmq.client.impl.channelmanager) _channelmanager (com.rabbitmq.client.impl.amqconnection) delegate (org.springframework.amqp.rabbit.connection.simpleconnection) target     (org.springframework.amqp.rabbit.connection.cachingconnectionfactory$channelcachingconnectionproxy) checkoutpermits (org.springframework.amqp.rabbit.connection.cachingconnectionfactory) connectionfactory (org.springframework.amqp.rabbit.core.rabbitadmin) amqpadmin (mqclient.rabbitmq.manager.impl.inputqueuemanagerimpl) @ com.esotericsoftware.kryo.serializers.fieldserializer$objectfield.write(fieldserializer.java:585) @ com.esotericsoftware.kryo.serializers.fieldserializer.write(fieldserializer.java:213)

when make b,c,d transient works . want serialize b,c,d too.

can kryo here? if yes , correct way it?

it means while kryo serializing class , of member class (b, c, ...) got modified in whole hierarchy thread. example let class b contains list list. , getting changed in list while serializing class -> above exception. that's how kryo designed.


Comments

Post a Comment

Popular posts from this blog

html - Outlook 2010 Anchor (url/address/link) -

i'm trying link specific pdf page msoutlook'10 or msword'10, #page=... anchor particularly useful , works fine elsewhere. unfortunately when click [ctr-k] in outlook or winword, links re-formatted assuming unc path. pdf file located on shared drive. using "file:" prefix links open pdf in adobe reader (outside of browser), , "http:" open inside browser. issue seem need open in browser "file:" prefix in order anchor work. know anchors work inside browser. outlook uses windows/explorer default program (based on file extension) seems open in adobe reader neglecting anchor. is aware of solution, link specific page or bookmark of shared-pdf ms outlook and/or winword link? common references: mailermailer.com/...anchor-tags-html-emails campaignmonitor.com/...anchor-links-in-email-newsletters/ stackoverflow.com/...anchor-in-pdf-document
Read more

javascript - Why does running this loop 9 times take 100x longer than running it 8 times? -

consider code: test = function() { } t = new test(); (var = 0; < 8; i++) { result = t instanceof test; } if change number of iterations 8 9 , loop take 100 times longer complete in latest version of firefox (41.0.1). tested on 2 different pcs , magic limit 8. here jsperf test used: http://jsperf.com/instanceof-8-times-vs-9-times does have idea why might happen? seems specific instanceof . not happen if else object, example check property. note: filed bugzilla bug this. jan de mooij mozilla team has posted details in bugzilla thread . here's simplistic interpretation of highly technical answers: in i < 8 case, firefox smart enough hoist result = t instanceof test; statement out of loop (according tests, doesn't seem omit altogether). in i < 9 case, apparently doesn't optimization . why? reason not clear, related fact 9 iterations threshold above function considered "hot" enough run through jit compiler. i < 8 cas...
Read more

Getting gateway time-out Rails app with Nginx + Puma running on Digital Ocean -

following this guide setup app on digital ocean droplet, not working. site not loading , it's throwing: "gateway time-out". the puma server works, since ps aux | grep puma prints: root 15878 0.0 0.4 376832 2168 ? sl 12:50 0:00 puma 2.13.4 (unix:///var/www/myapp/shared/tmp/sockets/myapp-puma.sock) [20150930164940] root 15881 0.0 0.7 903676 3692 ? sl 12:50 0:06 puma: cluster worker 0: 15878 [20150930164940] root 24654 0.0 0.1 11748 916 pts/2 s+ 18:00 0:00 grep --color=auto puma my nginx config: user root; worker_processes 1; events { worker_connections 1024; } http { upstream puma { server unix:///var/www/myapp/shared/tmp/sockets/myapp-puma.sock; } server { listen 80; server_name myapp.com; root /var/www/myapp/current/public; access_log /var/www/myapp/current/log/access.log; error_log /...
Read more