AEM 6.3 upgrade issue: WCmUse / WCMUsePojo mocking in Junit

[#1]

If see this issue when building on multiple machines I would conclude that it's not an hardware issue. If only happened on a single machine, I would assume that you have an hardware issue with the RAM; if you have it on multiple machines, it's very likely something else (hardware issues on memory most often go unnoticed, and it's rather unrealistic that the problem turns out at the same time on multiple machines).

Please validate the the exact java version you are using across the machines you are building one, and see if there is a pattern.

Jörg

[#2]

Upgrade issue.Getting below error's when we have upgraded from AEM 6.2 to 6.4. Can you help me understand this issue.

<h1>Constructor must call super() or this() before return

Exception Details:

  Location:

    com/fasterxml/jackson/core/TreeCodec.&lt;init&gt;()V @1: return

  Reason:

    Error exists in the bytecode

  Bytecode:

    0x0000000: 2ab1                                  

</h1>

        <p>Cannot serve request to /bin/newsfeed.news.json in com.core.newsfeed.NewsfeedServlet</p>

        <h3>Exception:</h3>

<pre>

java.lang.VerifyError: Constructor must call super() or this() before return

Exception Details:

  Location:

    com/fasterxml/jackson/core/TreeCodec.&lt;init&gt;()V @1: return

  Reason:

    Error exists in the bytecode

  Bytecode:

    0x0000000: 2ab1 

----------------------------------------------------------

at com.newsfeed.NewsfeedServlet.doGet(NewsfeedServlet.java:48)

at org.apache.sling.api.servlets.SlingSafeMethodsServlet.mayService(SlingSafeMethodsServlet.java:266)

at org.apache.sling.api.servlets.SlingSafeMethodsServlet.service(SlingSafeMethodsServlet.java:342)

at org.apache.sling.api.servlets.SlingSafeMethodsServlet.service(SlingSafeMethodsServlet.java:374)

at org.apache.sling.engine.impl.request.RequestData.service(RequestData.java:552)

at org.apache.sling.engine.impl.filter.SlingComponentFilterChain.render(SlingComponentFilterChain.java:44)

at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:77)

at com.day.cq.wcm.core.impl.WCMDebugFilter.doFilter(WCMDebugFilter.java:138)

[#3]

This too can be an upgrade bug. You should report this to customer support. You may need a hotfix.