[10] RFR(S) 8194988: 8 Null pointer dereference defect groups related to MultiNode::proj_out()

Vladimir Kozlov vladimir.kozlov at oracle.com
Wed Jan 17 19:05:35 UTC 2018

Very good.


On 1/17/18 10:16 AM, dean.long at oracle.com wrote:
> http://cr.openjdk.java.net/~dlong/8194988/webrev/
> https://bugs.openjdk.java.net/browse/JDK-8194988
> I introduced MultiNode::proj_out_or_null() for paths that either check 
> the result before dereferencing or don't dereference at all.  Paths that 
> dereference without checking the return value will continue using 
> proj_out(), where I added an assert that the return value is not NULL. 
> This preserves current behavior except that we will assert instead of 
> trapping with SEGV, and it makes the static analyzer happy.
> dl

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