8036609: Check jdk/src/windows/native/java/lang/ProcessImpl_md.c for JNI pending exceptions

Summary: added ExceptionCheck fater JNI calls
Reviewed-by: chegar

src/windows/native/java/lang/ProcessImpl_md.c

@@ -359,9 +359,11 @@ Java_java_lang_ProcessImpl_create(JNIEnv *env, jclass ignored,
             const jchar *penvBlock = (envBlock != NULL)
                 ? (*env)->GetStringChars(env, envBlock, NULL)
                 : NULL;
+            if (!(*env)->ExceptionCheck(env)) {
                 const jchar *pdir = (dir != NULL)
                     ? (*env)->GetStringChars(env, dir, NULL)
                     : NULL;
+                if (!(*env)->ExceptionCheck(env)) {
                     jlong *handles = (*env)->GetLongArrayElements(env, stdHandles, NULL);
                     if (handles != NULL) {
                         ret = processCreate(
@@ -375,8 +377,10 @@ Java_java_lang_ProcessImpl_create(JNIEnv *env, jclass ignored,
                     }
                     if (pdir != NULL)
                         (*env)->ReleaseStringChars(env, dir, pdir);
+                }
                 if (penvBlock != NULL)
                     (*env)->ReleaseStringChars(env, envBlock, penvBlock);
+            }
             (*env)->ReleaseStringChars(env, cmd, pcmd);
         }
     }
@@ -448,7 +452,7 @@ Java_java_lang_ProcessImpl_isProcessAlive(JNIEnv *env, jclass ignored, jlong han
 JNIEXPORT jboolean JNICALL
 Java_java_lang_ProcessImpl_closeHandle(JNIEnv *env, jclass ignored, jlong handle)
 {
-    return CloseHandle((HANDLE) handle);
+    return (jboolean) CloseHandle((HANDLE) handle);
 }
 
 /**