[hibernate-issues] [Hibernate-JIRA] Updated: (HHH-7254) Using Eclipse's JarResrcLoader, an exception occurs: java.lang.StringIndexOutOfBoundsException: String index out of range: -1

[Thomas Siegbert (JIRA)]

     [ https://hibernate.onjira.com/browse/HHH-7254?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Thomas Siegbert updated HHH-7254:
---------------------------------

    Attachment: log.txt

> Using Eclipse's JarResrcLoader, an exception occurs: java.lang.StringIndexOutOfBoundsException: String index out of range: -1
> -----------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HHH-7254
>                 URL: https://hibernate.onjira.com/browse/HHH-7254
>             Project: Hibernate ORM
>          Issue Type: Bug
>          Components: entity-manager
>    Affects Versions: 3.6.10, 4.1.1
>         Environment: Hibernate Core 3.6.10, Windows 7 Enterprise, Java SE 1.6.31, DB: Oracle 11.2.0.2, IDE: Eclipse Indigo
>            Reporter: Thomas Siegbert
>              Labels: JarResrcLoader, hibernate, jar
>         Attachments: export_jar_in_jar.jar, export_libs_outside.rar, JarVisitorFactoryTest.java, log.txt, log.txt
>
>   Original Estimate: 8h
>  Remaining Estimate: 8h
>
> We have a project with a lot of jars. For delivering, we want to pack all jars and the binary code in one executable jar.
> To build this executable jar, we use the export-functionality from Eclipse. In the wizard in Eclipse, we use the following option for "Library handling": "Package required libraries into generated JAR".
> If I call this generated executable jar, I will get the following exception:
> {quote}
> Exception in thread "main" java.lang.reflect.InvocationTargetException
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
>         at java.lang.reflect.Method.invoke(Unknown Source)
>         at org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader.main(JarRsrcLoader.java:58)
> Caused by: javax.persistence.PersistenceException: Unable to configure EntityManagerFactory
>         at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:378)
>         at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:56)
>         at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:63)
>         at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:47)
>         at my.project.Main.main(Main.java:20)
>         ... 5 more
> Caused by: java.lang.StringIndexOutOfBoundsException: String index out of range: -1
>         at java.lang.String.substring(Unknown Source)
>         at org.hibernate.ejb.packaging.JarVisitorFactory.getJarURLFromURLEntry(JarVisitorFactory.java:55)
>         at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java: 344)
>         ... 9 more
> {quote}
> If I do not pack all jars in one jar (instead, I use a sub-folder outside the jar containing all libs), the program works fine.
> Probably, I have already identified the issue:
> In the method "_org.hibernate.ejb.packaging.JarVisitorFactory.getJarURLFromURLEntry_" there is the following code line:
> {quote} file = file.substring( 0, file.length() - entry.length() ); {quote}
> This works fine, if _file.length()_ is equal or greater than _entry.length()_. In my case ("Jars-in-Jar") the variables in this method got the following content:
> {quote}
>   file := META-INF/persistence.xml
>   entry := /META-INF/persistence.xml
>   url.toString := rsrc:META-INF/persistence.xml
> {quote}
> Thus, _file.length()_ < _entry.length()_ and the exception will be raised.
> In our project, we fixed it as follows:
> {quote} file = file.substring( 0, *Math.max( 0, file.length() - entry.length() )* ); {quote}
> But this is only a suggestion and we cannot foresee any side effects (especially, we do not use an application server).
> I attached the following files:
> * JarVisitorFactoryTest.java -> Unit-Tests (which fails using 3.6.10)
> * export_jar_in_jar.jar -> For reproduction (exception will raised). It is a small project.
> * export_libs_outside.rar -> Please unpack. This version works fine, because the libs are not within the jar.
> * log.txt -> stacktrace of the exception.

--
This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira