java - how to create instance from an inmutable objects? -

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i trying create new instance inmutable object. in case, list, , getting error: 

java.lang.instantiationexception: java.util.collections$unmodifiablerandomaccesslist     @ java.lang.class.newinstance(class.java:364)     @ com.example.movies.domain.transformer.domainentitytransformer.transformentityarray(domainentitytransformer.java:32)     @ com.example.movies.domain.service.client.impl.clientserviceimpl.getclients(clientserviceimpl.java:58)     @ com.example.movies.service.controller.clientcontroller.getclients(clientcontroller.java:50)     @ sun.reflect.nativemethodaccessorimpl.invoke0(native method)     @ sun.reflect.nativemethodaccessorimpl.invoke(nativemethodaccessorimpl.java:57)     @ sun.reflect.delegatingmethodaccessorimpl.invoke(delegatingmethodaccessorimpl.java:43)     @ java.lang.reflect.method.invoke(method.java:606)     @ org.springframework.web.method.support.invocablehandlermethod.doinvoke(invocablehandlermethod.java:221)     @ org.springframework.web.method.support.invocablehandlermethod.invokeforrequest(invocablehandlermethod.java:137)     @ org.springframework.web.servlet.mvc.method.annotation.servletinvocablehandlermethod.invokeandhandle(servletinvocablehandlermethod.java:110)     @ org.springframework.web.servlet.mvc.method.annotation.requestmappinghandleradapter.invokehandlemethod(requestmappinghandleradapter.java:777)     @ org.springframework.web.servlet.mvc.method.annotation.requestmappinghandleradapter.handleinternal(requestmappinghandleradapter.java:706)     @ org.springframework.web.servlet.mvc.method.abstracthandlermethodadapter.handle(abstracthandlermethodadapter.java:85)     @ org.springframework.web.servlet.dispatcherservlet.dodispatch(dispatcherservlet.java:943)     @ org.springframework.web.servlet.dispatcherservlet.doservice(dispatcherservlet.java:877)     @ org.springframework.web.servlet.frameworkservlet.processrequest(frameworkservlet.java:966)     @ org.springframework.web.servlet.frameworkservlet.doget(frameworkservlet.java:857)     @ javax.servlet.http.httpservlet.service(httpservlet.java:618)     @ org.springframework.web.servlet.frameworkservlet.service(frameworkservlet.java:842)     @ javax.servlet.http.httpservlet.service(httpservlet.java:725)     @ org.apache.catalina.core.applicationfilterchain.internaldofilter(applicationfilterchain.java:291)     @ org.apache.catalina.core.applicationfilterchain.dofilter(applicationfilterchain.java:206)     @ org.apache.tomcat.websocket.server.wsfilter.dofilter(wsfilter.java:52)     @ org.apache.catalina.core.applicationfilterchain.internaldofilter(applicationfilterchain.java:239)     @ org.apache.catalina.core.applicationfilterchain.dofilter(applicationfilterchain.java:206)     @ org.springframework.web.filter.hiddenhttpmethodfilter.dofilterinternal(hiddenhttpmethodfilter.java:77)     @ org.springframework.web.filter.onceperrequestfilter.dofilter(onceperrequestfilter.java:107)     @ org.apache.catalina.core.applicationfilterchain.internaldofilter(applicationfilterchain.java:239)     @ org.apache.catalina.core.applicationfilterchain.dofilter(applicationfilterchain.java:206)     @ org.springframework.web.filter.characterencodingfilter.dofilterinternal(characterencodingfilter.java:88)     @ org.springframework.web.filter.onceperrequestfilter.dofilter(onceperrequestfilter.java:107)     @ org.apache.catalina.core.applicationfilterchain.internaldofilter(applicationfilterchain.java:239)     @ org.apache.catalina.core.applicationfilterchain.dofilter(applicationfilterchain.java:206)     @ org.apache.catalina.core.standardwrappervalve.invoke(standardwrappervalve.java:219)     @ org.apache.catalina.core.standardcontextvalve.invoke(standardcontextvalve.java:106)     @ org.apache.catalina.authenticator.authenticatorbase.invoke(authenticatorbase.java:501)     @ org.apache.catalina.core.standardhostvalve.invoke(standardhostvalve.java:142)     @ org.apache.catalina.valves.errorreportvalve.invoke(errorreportvalve.java:79)     @ org.apache.catalina.core.standardenginevalve.invoke(standardenginevalve.java:88)     @ org.apache.catalina.connector.coyoteadapter.service(coyoteadapter.java:516)     @ org.apache.coyote.http11.abstracthttp11processor.process(abstracthttp11processor.java:1086)     @ org.apache.coyote.abstractprotocol$abstractconnectionhandler.process(abstractprotocol.java:659)     @ org.apache.coyote.http11.http11nioprotocol$http11connectionhandler.process(http11nioprotocol.java:223)     @ org.apache.tomcat.util.net.nioendpoint$socketprocessor.dorun(nioendpoint.java:1558)     @ org.apache.tomcat.util.net.nioendpoint$socketprocessor.run(nioendpoint.java:1515)     @ java.util.concurrent.threadpoolexecutor.runworker(threadpoolexecutor.java:1145)     @ java.util.concurrent.threadpoolexecutor$worker.run(threadpoolexecutor.java:615)     @ org.apache.tomcat.util.threads.taskthread$wrappingrunnable.run(taskthread.java:61)     @ java.lang.thread.run(thread.java:745)

this transformer class exception has been thrown

public collection<dom> transformentityarray(collection<ent> iterable) {     try {         collection<dom> transformed = iterable.getclass().newinstance();         iterator<ent> iterator = iterable.iterator();         while (iterator.hasnext()) {             ent element = iterator.next();             transformed.add(this.transformentity(element));         }         return transformed;     } catch (exception e) {         e.printstacktrace();         return null;     } }

this implementation 

page<client> clientsentity = this.dao.findall(new pagerequest(offset, limit)); list<clientdomain> clientsdomain = (list<clientdomain>) this.transformer.transformentityarray(clientsentity     .getcontent());

do know people how fix it? regards!

yes, 

transformed = new arraylist<>();

and (even though makes no sense in case), can create inmutable objects calling appropriete constructor necessary parameters set state of object.

in case unmodifiablerandomaccesslist(list<? extends e> list), can access getclass().getconstructor... (and still need temporary arraylist store results).

but cannot provide generic solution work input collection, need know contructor call == know java code of actual call parameters. renders using genereirc , interfaces pointless.

so create arbitrary chosen collection (arraylist) not affect further parts of code.


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