8241319: WB_GetCodeBlob doesn't have ResourceMark

[Leonid Mesnik]

Hi

Could you please review following trivial fix which add ResourceMark in 
WB_GetCodeBlob. I verified that all other functions which call 
codeBlob2objectArray have ResourceMark already.

The failure is not reproduced by regular testing. I hit it while running 
tests in virtual threads for project loom. See hs_err stack in jira issue.


bug: https://bugs.openjdk.java.net/browse/JDK-8241319

diff:

diff --git a/src/hotspot/share/prims/whitebox.cpp 
b/src/hotspot/share/prims/whitebox.cpp
index f8669d34a6..e389e6649d 100644
--- a/src/hotspot/share/prims/whitebox.cpp
+++ b/src/hotspot/share/prims/whitebox.cpp
@@ -1632,6 +1632,7 @@ WB_ENTRY(jint, 
WB_GetCompilationActivityMode(JNIEnv* env, jobject o))
  WB_END

  WB_ENTRY(jobjectArray, WB_GetCodeBlob(JNIEnv* env, jobject o, jlong addr))
+  ResourceMark rm(THREAD);
    if (addr == 0) {
      THROW_MSG_NULL(vmSymbols::java_lang_NullPointerException(),
        "WB_GetCodeBlob: addr is null");