hg: jdk9/hs/hotspot: 8157490: JCK test vm/jni/DefineClass/dfcl001/dfcl00101m1/dfcl00101m1 crashes when run with -Xlog:classload=info

[max.ockner at oracle.com]

Changeset: da7822cf01c2
Author:    mockner
Date:      2016-06-13 13:47 -0400
URL:       http://hg.openjdk.java.net/jdk9/hs/hotspot/rev/da7822cf01c2

8157490: JCK test vm/jni/DefineClass/dfcl001/dfcl00101m1/dfcl00101m1 crashes when run with -Xlog:classload=info
Summary: null stream->source() no longer causes error with -Xlog:class+load
Reviewed-by: lfoltan, coleenp

! src/share/vm/classfile/classFileParser.cpp
! src/share/vm/oops/instanceKlass.cpp