NPE and xml generation quirck when exporting plural forms

Description

We have been having problems with ts translations containing plural forms in zanata.

The interface proposes two plural forms inputs instead of one and if both are filled, the resulting translation cannot be downloaded with this error:

13:51:10,702 WARN  [net.sf.okapi.filters.ts.TsFilter] (default task-6) Message (Line 6677 contains no <source>. Message will be ignored.
13:51:10,705 WARN  [net.sf.okapi.filters.ts.TsFilter] (default task-6) Message (Line 6790 contains no <source>. Message will be ignored.
13:51:10,707 WARN  [net.sf.okapi.filters.ts.TsFilter] (default task-6) Message (Line 6825 contains no <source>. Message will be ignored.
13:51:10,825 INFO  [org.zanata.adapter.TSAdapter] (default task-6) Qt ts context bug encountered, returning UpdatesChecker from
<context>
    <name>UpdatesChecker</name>
    <message numerus="yes">
        <location filename="../updates/updateschecker.cpp" line="313"/>
        <source>%n method files updated</source>
        <translation[#$$self$@%approved]>

13:51:10,826 ERROR [org.jboss.resteasy.resteasy_jaxrs.i18n] (default task-6) RESTEASY002025: Unknown exception while executing GET /file/translation/Embedded/v3.7.3/ru/baked: java.lang.NullPointerException
        at org.zanata.adapter.TSAdapter.processTranslation(TSAdapter.java:255) [services-4.6.2.jar:4.6.2]
        at org.zanata.adapter.TSAdapter.generateTranslatedFile(TSAdapter.java:212) [services-4.6.2.jar:4.6.2]
        at org.zanata.adapter.OkapiFilterAdapter.writeTranslatedFileWithFileOutput(OkapiFilterAdapter.java:402) [services-4.6.2.jar:4.6.2]
        at org.zanata.adapter.OkapiFilterAdapter.writeTranslatedFile(OkapiFilterAdapter.java:360) [services-4.6.2.jar:4.6.2]
        at org.zanata.rest.service.FileService$FormatAdapterStreamingOutput.write(FileService.java:483) [services-4.6.2.jar:4.6.2]
        at org.jboss.resteasy.plugins.providers.StreamingOutputProvider.writeTo(StreamingOutputProvider.java:32) [resteasy-jaxrs-3.0.19.Final.jar:3.0.19.Final]
        at org.jboss.resteasy.plugins.providers.StreamingOutputProvider.writeTo(StreamingOutputProvider.java:17) [resteasy-jaxrs-3.0.19.Final.jar:3.0.19.Final]
        at org.jboss.resteasy.core.interception.AbstractWriterInterceptorContext.writeTo(AbstractWriterInterceptorContext.java:131) [resteasy-jaxrs-3.0.19.Final.jar:3.0.19.Final]
        at org.jboss.resteasy.core.interception.ServerWriterInterceptorContext.writeTo(ServerWriterInterceptorContext.java:60) [resteasy-jaxrs-3.0.19.Final.jar:3.0.19.Final]
        at org.jboss.resteasy.core.interception.AbstractWriterInterceptorContext.proceed(AbstractWriterInterceptorContext.java:120) [resteasy-jaxrs-3.0.19.Final.jar:3.0.19.Final]
        at org.jboss.resteasy.plugins.interceptors.encoding.GZIPEncodingInterceptor.aroundWriteTo(GZIPEncodingInterceptor.java:100) [resteasy-jaxrs-3.0.19.Final.jar:3.0.19.Final]
        at org.jboss.resteasy.core.interception.AbstractWriterInterceptorContext.proceed(AbstractWriterInterceptorContext.java:124) [resteasy-jaxrs-3.0.19.Final.jar:3.0.19.Final]
        at org.jboss.resteasy.core.ServerResponseWriter.writeNomapResponse(ServerResponseWriter.java:98) [resteasy-jaxrs-3.0.19.Final.jar:3.0.19.Final]
        at org.jboss.resteasy.core.SynchronousDispatcher.writeResponse(SynchronousDispatcher.java:473) [resteasy-jaxrs-3.0.19.Final.jar:3.0.19.Final]
        at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:422) [resteasy-jaxrs-3.0.19.Final.jar:3.0.19.Final]
        at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:209) [resteasy-jaxrs-3.0.19.Final.jar:3.0.19.Final]
        at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:221) [resteasy-jaxrs-3.0.19.Final.jar:3.0.19.Final]
        at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:56) [resteasy-jaxrs-3.0.19.Final.jar:3.0.19.Final]
        at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:51) [resteasy-jaxrs-3.0.19.Final.jar:3.0.19.Final]
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) [jboss-servlet-api_3.1_spec-1.0.0.Final.jar:1.0.0.Final]
        at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at org.zanata.servlet.DuplicateParamFilter.doFilter(DuplicateParamFilter.java:69) [services-4.6.2.jar:4.6.2]
        at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at org.apache.deltaspike.servlet.impl.event.EventBridgeFilter.doFilter(EventBridgeFilter.java:59) [deltaspike-servlet-module-impl-1.7.0.jar:1.7.0]
        at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at org.apache.deltaspike.servlet.impl.produce.RequestResponseHolderFilter.doFilter(RequestResponseHolderFilter.java:63) [deltaspike-servlet-module-impl-1.7.0.jar:1.7.0]
        at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at org.ocpsoft.rewrite.servlet.RewriteFilter.doFilter(RewriteFilter.java:226) [rewrite-servlet-3.4.2.Final.jar:3.4.2.Final]
        at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at org.zanata.servlet.JavaMelodyFilter.doFilter(JavaMelodyFilter.java:65) [services-4.6.2.jar:4.6.2]
        at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at org.zanata.servlet.MDCInsertingServletFilter.doFilter(MDCInsertingServletFilter.java:78) [services-4.6.2.jar:4.6.2]
        at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at org.zanata.servlet.RequestLoggingFilter.doFilter(RequestLoggingFilter.java:91) [services-4.6.2.jar:4.6.2]
        at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at org.zanata.rest.RestLimitingFilter.lambda$doFilter$0(RestLimitingFilter.java:99) [services-4.6.2.jar:4.6.2]
        at org.zanata.limits.RestCallLimiter.acquireActivePermit(RestCallLimiter.java:92) [services-4.6.2.jar:4.6.2]
        at org.zanata.limits.RestCallLimiter.tryAcquireAndRun(RestCallLimiter.java:66) [services-4.6.2.jar:4.6.2]
        at org.zanata.limits.RateLimitingProcessor.process(RateLimitingProcessor.java:53) [services-4.6.2.jar:4.6.2]
        at org.zanata.limits.RateLimitingProcessor.processForUser(RateLimitingProcessor.java:41) [services-4.6.2.jar:4.6.2]
        at org.zanata.rest.RestLimitingFilter.doFilter(RestLimitingFilter.java:108) [services-4.6.2.jar:4.6.2]
        at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at org.zanata.servlet.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:36) [services-4.6.2.jar:4.6.2]
        at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
        at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.security.handlers.AuthenticationConstraintHandler.handleRequest(AuthenticationConstraintHandler.java:53) [undertow-core-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46) [undertow-core-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.security.ServletSecurityConstraintHandler.handleRequest(ServletSecurityConstraintHandler.java:59) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60) [undertow-core-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50) [undertow-core-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43) [undertow-core-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.4.0.Final.jar:1.4.0.Final]
        at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
        at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:292) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:81) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:138) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:135) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:272) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:104) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.server.Connectors.executeRootHandler(Connectors.java:202) [undertow-core-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:805) [undertow-core-1.4.0.Final.jar:1.4.0.Final]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [rt.jar:1.8.0_181]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [rt.jar:1.8.0_181]
        at java.lang.Thread.run(Thread.java:748) [rt.jar:1.8.0_181]

13:51:10,832 ERROR [io.undertow.request] (default task-6) UT005023: Exception handling request to /rest/file/translation/Embedded/v3.7.3/ru/baked: java.lang.RuntimeException: org.jboss.resteasy.spi.UnhandledException: java.lang.NullPointerException
        at org.zanata.rest.RestLimitingFilter.doFilter(RestLimitingFilter.java:125) [services-4.6.2.jar:4.6.2]
        at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at org.zanata.servlet.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:36) [services-4.6.2.jar:4.6.2]
        at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
        at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.security.handlers.AuthenticationConstraintHandler.handleRequest(AuthenticationConstraintHandler.java:53) [undertow-core-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46) [undertow-core-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.security.ServletSecurityConstraintHandler.handleRequest(ServletSecurityConstraintHandler.java:59) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60) [undertow-core-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50) [undertow-core-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43) [undertow-core-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.4.0.Final.jar:1.4.0.Final]
        at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
        at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:292) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:81) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:138) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:135) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.api.LegacyThreadSetupActionWrapper$1.call(LegacyThreadSetupActionWrapper.java:44) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:272) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:104) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.server.Connectors.executeRootHandler(Connectors.java:202) [undertow-core-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:805) [undertow-core-1.4.0.Final.jar:1.4.0.Final]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [rt.jar:1.8.0_181]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [rt.jar:1.8.0_181]
        at java.lang.Thread.run(Thread.java:748) [rt.jar:1.8.0_181]
Caused by: org.jboss.resteasy.spi.UnhandledException: java.lang.NullPointerException
        at org.jboss.resteasy.core.ExceptionHandler.handleException(ExceptionHandler.java:255) [resteasy-jaxrs-3.0.19.Final.jar:3.0.19.Final]
        at org.jboss.resteasy.core.SynchronousDispatcher.writeException(SynchronousDispatcher.java:175) [resteasy-jaxrs-3.0.19.Final.jar:3.0.19.Final]
        at org.jboss.resteasy.core.SynchronousDispatcher.writeResponse(SynchronousDispatcher.java:478) [resteasy-jaxrs-3.0.19.Final.jar:3.0.19.Final]
        at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:422) [resteasy-jaxrs-3.0.19.Final.jar:3.0.19.Final]
        at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:209) [resteasy-jaxrs-3.0.19.Final.jar:3.0.19.Final]
        at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:221) [resteasy-jaxrs-3.0.19.Final.jar:3.0.19.Final]
        at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:56) [resteasy-jaxrs-3.0.19.Final.jar:3.0.19.Final]
        at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:51) [resteasy-jaxrs-3.0.19.Final.jar:3.0.19.Final]
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) [jboss-servlet-api_3.1_spec-1.0.0.Final.jar:1.0.0.Final]
        at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at org.zanata.servlet.DuplicateParamFilter.doFilter(DuplicateParamFilter.java:69) [services-4.6.2.jar:4.6.2]
        at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at org.apache.deltaspike.servlet.impl.event.EventBridgeFilter.doFilter(EventBridgeFilter.java:59) [deltaspike-servlet-module-impl-1.7.0.jar:1.7.0]
        at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at org.apache.deltaspike.servlet.impl.produce.RequestResponseHolderFilter.doFilter(RequestResponseHolderFilter.java:63) [deltaspike-servlet-module-impl-1.7.0.jar:1.7.0]
        at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at org.ocpsoft.rewrite.servlet.RewriteFilter.doFilter(RewriteFilter.java:226) [rewrite-servlet-3.4.2.Final.jar:3.4.2.Final]
        at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at org.zanata.servlet.JavaMelodyFilter.doFilter(JavaMelodyFilter.java:65) [services-4.6.2.jar:4.6.2]
        at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at org.zanata.servlet.MDCInsertingServletFilter.doFilter(MDCInsertingServletFilter.java:78) [services-4.6.2.jar:4.6.2]
        at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at org.zanata.servlet.RequestLoggingFilter.doFilter(RequestLoggingFilter.java:91) [services-4.6.2.jar:4.6.2]
        at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) [undertow-servlet-1.4.0.Final.jar:1.4.0.Final]
        at org.zanata.rest.RestLimitingFilter.lambda$doFilter$0(RestLimitingFilter.java:99) [services-4.6.2.jar:4.6.2]
        at org.zanata.limits.RestCallLimiter.acquireActivePermit(RestCallLimiter.java:92) [services-4.6.2.jar:4.6.2]
        at org.zanata.limits.RestCallLimiter.tryAcquireAndRun(RestCallLimiter.java:66) [services-4.6.2.jar:4.6.2]
        at org.zanata.limits.RateLimitingProcessor.process(RateLimitingProcessor.java:53) [services-4.6.2.jar:4.6.2]
        at org.zanata.limits.RateLimitingProcessor.processForUser(RateLimitingProcessor.java:41) [services-4.6.2.jar:4.6.2]
        at org.zanata.rest.RestLimitingFilter.doFilter(RestLimitingFilter.java:108) [services-4.6.2.jar:4.6.2]
        ... 45 more
Caused by: java.lang.NullPointerException
        at org.zanata.adapter.TSAdapter.processTranslation(TSAdapter.java:255) [services-4.6.2.jar:4.6.2]
        at org.zanata.adapter.TSAdapter.generateTranslatedFile(TSAdapter.java:212) [services-4.6.2.jar:4.6.2]
        at org.zanata.adapter.OkapiFilterAdapter.writeTranslatedFileWithFileOutput(OkapiFilterAdapter.java:402) [services-4.6.2.jar:4.6.2]
        at org.zanata.adapter.OkapiFilterAdapter.writeTranslatedFile(OkapiFilterAdapter.java:360) [services-4.6.2.jar:4.6.2]
        at org.zanata.rest.service.FileService$FormatAdapterStreamingOutput.write(FileService.java:483) [services-4.6.2.jar:4.6.2]
        at org.jboss.resteasy.plugins.providers.StreamingOutputProvider.writeTo(StreamingOutputProvider.java:32) [resteasy-jaxrs-3.0.19.Final.jar:3.0.19.Final]
        at org.jboss.resteasy.plugins.providers.StreamingOutputProvider.writeTo(StreamingOutputProvider.java:17) [resteasy-jaxrs-3.0.19.Final.jar:3.0.19.Final]
        at org.jboss.resteasy.core.interception.AbstractWriterInterceptorContext.writeTo(AbstractWriterInterceptorContext.java:131) [resteasy-jaxrs-3.0.19.Final.jar:3.0.19.Final]
        at org.jboss.resteasy.core.interception.ServerWriterInterceptorContext.writeTo(ServerWriterInterceptorContext.java:60) [resteasy-jaxrs-3.0.19.Final.jar:3.0.19.Final]
        at org.jboss.resteasy.core.interception.AbstractWriterInterceptorContext.proceed(AbstractWriterInterceptorContext.java:120) [resteasy-jaxrs-3.0.19.Final.jar:3.0.19.Final]
        at org.jboss.resteasy.plugins.interceptors.encoding.GZIPEncodingInterceptor.aroundWriteTo(GZIPEncodingInterceptor.java:100) [resteasy-jaxrs-3.0.19.Final.jar:3.0.19.Final]
        at org.jboss.resteasy.core.interception.AbstractWriterInterceptorContext.proceed(AbstractWriterInterceptorContext.java:124) [resteasy-jaxrs-3.0.19.Final.jar:3.0.19.Final]
        at org.jboss.resteasy.core.ServerResponseWriter.writeNomapResponse(ServerResponseWriter.java:98) [resteasy-jaxrs-3.0.19.Final.jar:3.0.19.Final]
        at org.jboss.resteasy.core.SynchronousDispatcher.writeResponse(SynchronousDispatcher.java:473) [resteasy-jaxrs-3.0.19.Final.jar:3.0.19.Final]
        ... 80 more

When removing the second plural form, the file can be downloaded but the generated xml is broken:

<context>
    <name>UpdatesChecker</name>
    <message numerus="yes">
        <location filename="../updates/updateschecker.cpp" line="313"/>
        <source>%n method files updated</source>
        <translation type="unfinished">
            
<context>
    <name>UpdatesChecker</name>
    <message numerus="yes">
        <location filename="../updates/updateschecker.cpp" line="313"/>
        <source>%n method files updated</source>
        <translation type="unfinished">
            <numerusform></numerusform>
            <numerusform></numerusform>
        </translation>
    </message>
</context>
<context>

Environment

None

Activity

Show:

Details

Assignee

Unassigned

Reporter

Former user(Deactivated)

Tested Version/s

None

Affects versions

platform-4.6.2

Priority

unspecified

More fields

Created 30 November 2018 at 14:06

Updated 30 November 2018 at 14:06

Configure

Zanata