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IDProjectCategoryView StatusDate SubmittedLast Update
0033077Openbravo ERPA. Platformpublic2016-05-30 13:582016-08-11 18:40
Reportershuehner 
Assigned Toalostale 
PriorityurgentSeverityminorReproducibilityalways
StatusclosedResolutionfixed 
PlatformOS5OS Version
Product Version 
Target VersionFixed in Version3.0PR16Q4 
Merge Request Status
Review Assigned Tocaristu
OBNetwork customer
Web browser
ModulesCore
Support ticket
Regression level
Regression date
Regression introduced in release
Regression introduced by commit
Triggers an Emergency PackNo
Summary0033077: ImportEntryManager constructor called twice even if ApplicationScoped
DescriptionThe constructor of ImportEntryManager is called two times.

However it is marked as ApplicationScoped + assumes single instance as storing itself in static variable (+getInstace()).

So calling constructor twice seems wrong.

Note: Impact of this is unclear

Note: the 2 instanciones come from the 2 contextListeners which instantiate (via weld) the class.

Stacktrace (produced with the diff attached):
10473 [main] INFO org.openbravo.service.importprocess.ImportEntryManager - Calling ImportEntryManager constructor
java.lang.Throwable
    at org.openbravo.service.importprocess.ImportEntryManager.<init>(ImportEntryManager.java:176)
    at org.openbravo.service.importprocess.ImportEntryManager$Proxy$_$$_WeldClientProxy.<init>(ImportEntryManager$Proxy$_$$_WeldClientProxy.java)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
    at java.lang.Class.newInstance(Class.java:383)
    at org.jboss.weld.util.reflection.SecureReflections$16.work(SecureReflections.java:344)
    at org.jboss.weld.util.reflection.SecureReflectionAccess.run(SecureReflectionAccess.java:52)
    at org.jboss.weld.util.reflection.SecureReflectionAccess.runAsInstantiation(SecureReflectionAccess.java:173)
    at org.jboss.weld.util.reflection.SecureReflections.newInstance(SecureReflections.java:341)
    at org.jboss.weld.bean.proxy.ProxyFactory.create(ProxyFactory.java:237)
    at org.jboss.weld.bean.proxy.ClientProxyFactory.create(ClientProxyFactory.java:105)
    at org.jboss.weld.bean.proxy.ClientProxyProvider.createClientProxy(ClientProxyProvider.java:87)
    at org.jboss.weld.bean.proxy.ClientProxyProvider.access$000(ClientProxyProvider.java:43)
    at org.jboss.weld.bean.proxy.ClientProxyProvider$1.load(ClientProxyProvider.java:53)
    at org.jboss.weld.bean.proxy.ClientProxyProvider$1.load(ClientProxyProvider.java:46)
    at com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3527)
    at com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2319)
    at com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2282)
    at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2197)
    at com.google.common.cache.LocalCache.get(LocalCache.java:3937)
    at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3941)
    at com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4824)
    at org.jboss.weld.util.cache.LoadingCacheUtils.getCacheValue(LoadingCacheUtils.java:49)
    at org.jboss.weld.util.cache.LoadingCacheUtils.getCastCacheValue(LoadingCacheUtils.java:73)
    at org.jboss.weld.bean.proxy.ClientProxyProvider.getClientProxy(ClientProxyProvider.java:102)
    at org.jboss.weld.manager.BeanManagerImpl.getReference(BeanManagerImpl.java:621)
    at org.jboss.weld.manager.BeanManagerImpl.getReference(BeanManagerImpl.java:653)
    at org.openbravo.base.weld.WeldUtils.getInstanceFromStaticBeanManager(WeldUtils.java:93)
    at org.openbravo.service.importprocess.ImportProcessContextListener.contextInitialized(ImportProcessContextListener.java:38)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4210)
    at org.apache.catalina.core.StandardContext.start(StandardContext.java:4709)
    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1060)
    at org.apache.catalina.core.StandardHost.start(StandardHost.java:822)
    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1060)
    at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463)
    at org.apache.catalina.core.StandardService.start(StandardService.java:525)
    at org.apache.catalina.core.StandardServer.start(StandardServer.java:759)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:595)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
10475 [main] INFO org.openbravo.service.importprocess.ImportEntryManager - Calling ImportEntryManager constructor
java.lang.Throwable
    at org.openbravo.service.importprocess.ImportEntryManager.<init>(ImportEntryManager.java:176)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
    at org.jboss.weld.introspector.jlr.WeldConstructorImpl.newInstance(WeldConstructorImpl.java:206)
    at org.jboss.weld.injection.ConstructorInjectionPoint.newInstance(ConstructorInjectionPoint.java:117)
    at org.jboss.weld.bean.ManagedBean.createInstance(ManagedBean.java:340)
    at org.jboss.weld.bean.ManagedBean$ManagedBeanInjectionTarget.produce(ManagedBean.java:204)
    at org.jboss.weld.bean.ManagedBean.create(ManagedBean.java:296)
    at org.jboss.weld.context.AbstractContext.get(AbstractContext.java:103)
    at org.jboss.weld.bean.proxy.ContextBeanInstance.getInstance(ContextBeanInstance.java:90)
    at org.jboss.weld.bean.proxy.ProxyMethodHandler.invoke(ProxyMethodHandler.java:79)
    at org.openbravo.service.importprocess.ImportEntryManager$Proxy$_$$_WeldClientProxy.start(ImportEntryManager$Proxy$_$$_WeldClientProxy.java)
    at org.openbravo.mobile.core.process.POSTerminalContextListener.contextInitialized(POSTerminalContextListener.java:35)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4210)
    at org.apache.catalina.core.StandardContext.start(StandardContext.java:4709)
    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1060)
    at org.apache.catalina.core.StandardHost.start(StandardHost.java:822)
    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1060)
    at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463)
    at org.apache.catalina.core.StandardService.start(StandardService.java:525)
    at org.apache.catalina.core.StandardServer.start(StandardServer.java:759)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:595)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
Steps To ReproduceApply simple logging diff:
diff -r 65a012587054 src/org/openbravo/service/importprocess/ImportEntryManager.java
--- a/src/org/openbravo/service/importprocess/ImportEntryManager.java Thu May 26 20:02:26 2016 +0200
+++ b/src/org/openbravo/service/importprocess/ImportEntryManager.java Mon May 30 13:57:30 2016 +0200
@@ -173,6 +173,7 @@
         numberOfThreads, 4);
     maxTaskQueueSize = ImportProcessUtils.getCheckIntProperty(log, "import.max.task.queue.size",
         maxTaskQueueSize, 50);
+ log.info("Calling ImportEntryManager constructor", new Throwable());
   }
 
   public synchronized void start() {
Proposed Solution
Additional Information
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Issue History
Date ModifiedUsernameFieldChange
2016-05-30 13:58shuehnerNew Issue
2016-05-30 13:58shuehnerAssigned To => platform
2016-05-30 13:58shuehnerModules => Core
2016-05-30 13:58shuehnerTriggers an Emergency Pack => No
2016-07-15 08:46alostaleNote Added: 0088511
2016-07-15 08:46alostaleStatusnew => acknowledged
2016-07-15 08:47alostalePrioritynormal => urgent
2016-07-15 08:47alostaleSeverityminor => major
2016-07-15 09:04alostaleNote Edited: 0088511bug_revision_view_page.php?bugnote_id=0088511#r12658
2016-07-15 09:04alostaleSeveritymajor => minor
2016-07-15 09:09alostaleReview Assigned To => caristu
2016-07-15 09:13alostaleStatusacknowledged => scheduled
2016-07-15 09:13alostaleAssigned Toplatform => alostale
2016-07-15 10:46hgbotCheckin
2016-07-15 10:46hgbotNote Added: 0088516
2016-07-15 10:46hgbotStatusscheduled => resolved
2016-07-15 10:46hgbotResolutionopen => fixed
2016-07-15 10:46hgbotFixed in SCM revision => http://code.openbravo.com/erp/devel/pi/rev/e05fce66f7ed8e89d6107aa70e790f973ab9d2ef [^]
2016-07-22 11:33caristuNote Added: 0088630
2016-07-22 11:33caristuStatusresolved => closed
2016-07-22 11:33caristuFixed in Version => 3.0PR16Q4
2016-08-11 18:40hudsonbotCheckin
2016-08-11 18:40hudsonbotNote Added: 0089015

Notes
(0088511)
alostale   
2016-07-15 08:46   
(edited on: 2016-07-15 09:04)
See: http://stackoverflow.com/questions/18378608/why-is-constructor-of-applicationscoped-class-called-more-than-once [^]

As you can see in the stack traces, 1st invocation is in a proxy and 2nd one in the actual instance.

In this case the impact is reduced as the 2nd invocation is setting the correct instance and the code in the constructor itself is inexpensive.
(0088516)
hgbot   
2016-07-15 10:46   
Repository: erp/devel/pi
Changeset: e05fce66f7ed8e89d6107aa70e790f973ab9d2ef
Author: Asier Lostalé <asier.lostale <at> openbravo.com>
Date: Fri Jul 15 09:09:26 2016 +0200
URL: http://code.openbravo.com/erp/devel/pi/rev/e05fce66f7ed8e89d6107aa70e790f973ab9d2ef [^]

fixed bug 33077: ImportEntryManager constructor called twice

  Constructor in ImportEntryManager was invoked twice even it is a bean with
  application scope.

  The problem is CDI doesn't guarantee single constructor invocation per injection
  point instance as this code was asuming.

  The solution is to move initialization code to a method annotated with
  @PostConstruct.

---
M src/org/openbravo/service/importprocess/ImportEntryManager.java
---
(0088630)
caristu   
2016-07-22 11:33   
Verified in pi@ea24d6781214
(0089015)
hudsonbot   
2016-08-11 18:40   
A changeset related to this issue has been promoted main and to the
Central Repository, after passing a series of tests.

Promotion changeset: https://code.openbravo.com/erp/devel/main/rev/edaa05b1fb18 [^]
Maturity status: Test