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Error when trying to reach login page

PostPosted: Mon Nov 06, 2017 12:47 pm
by enapja
I'm migrating a SAP B2B Commerce project from version 7.0 to 7.4, with the previous version of Java 1.4 to 1.7.

I can't see the login page, instead i see this 500 Internal Server Error message:

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    Error: ISA Framework: javax.servlet.ServletException: java.lang.NullPointerException: while trying to invoke the method com.sap.isa.core.eai.BackendConfig.getId() of a null object loaded from local variable 'config'




But after a search in my files, I never see the variable 'config' or the com.sap.isa.core.eai.BackendConfig import.

Where is the problem located? and how I can solve this issue?
is this problem unrelated to my components?

UPDATE

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    /usr/sap/CRP/DVEBMGS26/j2ee/cluster/apps/sap.com/home~icss_s7/servlet_jsp/icss_s7/work/JEE_jsp_user_logon_login_1509734170000.java:448: cannot find symbol
    symbol  : class Iterator
    location: class JEE_jsp_user_logon_login_1509734170000
                                    Iterator it = langTree.iterator();


Now the error message changed to this, I did change nothing all, just refreshed the page, at least I get five similar errors about not being able to find the class symbol. This can be easily be fixed to make the necessary imports but I had search for such class, and it's not in the project, not sure if this class
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JEE_jsp_user_logon_login_1509734170000.java
is generated somewhere else, or is unrelated to my components.