hg: jdk/sandbox: 8166358: Re-enable String verification in java_lang_String::create_from_str()

[chris.hegarty at oracle.com]

Changeset: 6a562866cbd0
Author:    coleenp
Date:      2020-05-26 09:44 -0400
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/6a562866cbd0

8166358: Re-enable String verification in java_lang_String::create_from_str()
Summary: Check for invalid strings in class names in debug mode, and only verify valid strings in create_for_str().
Reviewed-by: dholmes, hseigel

! src/hotspot/share/classfile/javaClasses.cpp
! src/hotspot/share/classfile/systemDictionary.cpp
! src/hotspot/share/classfile/systemDictionary.hpp
! src/hotspot/share/prims/jni.cpp
! src/hotspot/share/prims/jniCheck.cpp
! src/hotspot/share/prims/jvm.cpp
+ test/hotspot/jtreg/runtime/jni/FindClassUtf8/FindClassUtf8.java
+ test/hotspot/jtreg/runtime/jni/FindClassUtf8/libFindClassUtf8.c