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https://issues.apache.org/jira/browse/KARAF-3122?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14083709#comment-14083709
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Krzysztof Sobkowiak commented on KARAF-3122:
--------------------------------------------
Tested in the released Karaf {{2.3.6}}. The problem doesn't occur anymore, but
in log file I could find following entry
{code}
2014-08-02 22:41:58,811 | ERROR | raf-2.3.6/deploy | fileinstall
| ? ? | 6 -
org.apache.felix.fileinstall - 3.4.0 | In main loop, we have serious trouble
java.util.ConcurrentModificationException
at java.util.HashMap$HashIterator.nextEntry(HashMap.java:922)[:1.7.0_65]
at java.util.HashMap$KeyIterator.next(HashMap.java:956)[:1.7.0_65]
at
org.apache.felix.fileinstall.internal.WatcherScanner.scan(WatcherScanner.java:70)[6:org.apache.felix.fileinstall:3.4.0]
at
org.apache.felix.fileinstall.internal.DirectoryWatcher.run(DirectoryWatcher.java:305)[6:org.apache.felix.fileinstall:3.4.0]
{code}
> Blueprint bean loaded multiple times
> ------------------------------------
>
> Key: KARAF-3122
> URL: https://issues.apache.org/jira/browse/KARAF-3122
> Project: Karaf
> Issue Type: Bug
> Affects Versions: 2.3.6
> Reporter: Krzysztof Sobkowiak
> Attachments: test.jar, test.xml
>
>
> The attached jar contains following class
> {code}
> package com;
> public class Test {
> public void init() throws Exception { System.out.println("Starting ..."); }
> }
> {code}
>
> The attached blueprint file initializes the bean using the {{init}} method.
> If the both files are deployed using hot deploy, the method {{init}} seems to
> be called twice after Karaf restart.
> {code}
> karaf@root> Starting ...
> Warning: org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser: Property
> 'http://www.oracle.com/xml/jaxp/properties/entityExpansionLimit' is not
> recognized.
> Compiler warnings:
> WARNING: 'org.apache.xerces.jaxp.SAXParserImpl: Property
> 'http://javax.xml.XMLConstants/property/accessExternalDTD' is not recognized.'
> Starting ...
> {code}
> After deleting the {{data}} directory before starting Karaf, the method is
> called once
> {code}
> karaf@root> Warning: org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser:
> Property 'http://www.oracle.com/xml/jaxp/properties/entityExpansionLimit' is
> not recognized.
> Compiler warnings:
> WARNING: 'org.apache.xerces.jaxp.SAXParserImpl: Property
> 'http://javax.xml.XMLConstants/property/accessExternalDTD' is not recognized.'
> Starting ...
> {code}
> The bean is probably started once from the cached bundle and next is
> refreshed when it is detected in {{deploy}} directory.
> This effect does not occur in Karaf {{2.x}}, {{3.0.x}} and {{master}}
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