[refactor](jni)refactor jni util for safe jni call

Author: hubgeter

be/src/agent/task_worker_pool.cpp

@@ -2396,7 +2396,7 @@ void clean_udf_cache_callback(const TAgentTaskRequest& req) {
     if (doris::config::enable_java_support) {
         LOG(INFO) << "clean udf cache start: " << req.clean_udf_cache_req.function_signature;
         static_cast<void>(
-                JniUtil::clean_udf_class_load_cache(req.clean_udf_cache_req.function_signature));
+                Jni::Util::clean_udf_class_load_cache(req.clean_udf_cache_req.function_signature));
         LOG(INFO) << "clean udf cache  finish: " << req.clean_udf_cache_req.function_signature;
     }
 }

be/src/io/fs/benchmark/benchmark_factory.hpp

@@ -104,7 +104,7 @@ class MultiBenchmark {
         Status status = Status::OK();
         if (doris::config::enable_java_support) {
             // Init jni
-            status = doris::JniUtil::Init();
+            status = doris::Jni::Util::Init();
             if (!status.ok()) {
                 LOG(WARNING) << "Failed to initialize JNI: " << status;
                 exit(1);

be/src/io/fs/hdfs_file_writer.cpp

@@ -128,7 +128,7 @@ class HdfsWriteMemUsageRecorder {
 private:
     // clang-format off
     size_t max_jvm_heap_size() const {
-        return JniUtil::get_max_jni_heap_memory_size();
+        return Jni::Util::get_max_jni_heap_memory_size();
     }
     // clang-format on
     [[maybe_unused]] std::size_t cur_memory_comsuption {0};

be/src/service/doris_main.cpp

@@ -490,7 +490,7 @@ int main(int argc, char** argv) {
     Status status = Status::OK();
     if (doris::config::enable_java_support) {
         // Init jni
-        status = doris::JniUtil::Init();
+        status = doris::Jni::Util::Init();
         if (!status.ok()) {
             LOG(WARNING) << "Failed to initialize JNI: " << status;
             exit(1);

be/src/util/doris_metrics.cpp

@@ -428,8 +428,8 @@ void DorisMetrics::initialize(bool init_system_metrics, const std::set<std::stri
     }
 }
 
-void DorisMetrics::init_jvm_metrics(JNIEnv* env) {
-    _jvm_metrics.reset(new JvmMetrics(&_metric_registry, env));
+void DorisMetrics::init_jvm_metrics() {
+    _jvm_metrics.reset(new JvmMetrics(&_metric_registry));
 }
 
 void DorisMetrics::_update() {

be/src/util/doris_metrics.h

@@ -282,7 +282,7 @@ class DorisMetrics {
     SystemMetrics* system_metrics() { return _system_metrics.get(); }
     MetricEntity* server_entity() { return _server_metric_entity.get(); }
     JvmMetrics* jvm_metrics() { return _jvm_metrics.get(); }
-    void init_jvm_metrics(JNIEnv* env);
+    void init_jvm_metrics();
 
 private:
     // Don't allow constructor