diff -r af47e0398606 src/hotspot/share/c1/c1_Runtime1.cpp
--- a/src/hotspot/share/c1/c1_Runtime1.cpp	Wed Jun 05 16:01:00 2019 +0200
+++ b/src/hotspot/share/c1/c1_Runtime1.cpp	Tue Jun 11 18:00:52 2019 +0200
@@ -571,7 +571,7 @@
       tempst.print("compiled method <%s>\n"
                    " at PC" INTPTR_FORMAT " for thread " INTPTR_FORMAT,
                    nm->method()->print_value_string(), p2i(pc), p2i(thread));
-      Exceptions::log_exception(exception, tempst);
+      Exceptions::log_exception(exception, tempst.as_string());
     }
     // for AbortVMOnException flag
     Exceptions::debug_check_abort(exception);
diff -r af47e0398606 src/hotspot/share/code/codeHeapState.cpp
--- a/src/hotspot/share/code/codeHeapState.cpp	Wed Jun 05 16:01:00 2019 +0200
+++ b/src/hotspot/share/code/codeHeapState.cpp	Tue Jun 11 18:00:52 2019 +0200
@@ -91,7 +91,7 @@
     /* _anyst  name of the stream as used in the code */  \
     /* _outst  stream where final output will go to   */  \
     ResourceMark rm;                                      \
-    bufferedStream   _sstobj = bufferedStream(4*K);       \
+    bufferedStream   _sstobj(4*K);                        \
     bufferedStream*  _sstbuf = &_sstobj;                  \
     outputStream*    _outbuf = _outst;                    \
     bufferedStream*  _anyst  = &_sstobj; /* any stream. Use this to just print - no buffer flush.  */
diff -r af47e0398606 src/hotspot/share/compiler/compileBroker.cpp
--- a/src/hotspot/share/compiler/compileBroker.cpp	Wed Jun 05 16:01:00 2019 +0200
+++ b/src/hotspot/share/compiler/compileBroker.cpp	Tue Jun 11 18:00:52 2019 +0200
@@ -197,7 +197,7 @@
 
   void log_compile(JavaThread* thread, CompileTask* task) {
     StringLogMessage lm;
-    stringStream sstr = lm.stream();
+    stringStream sstr(lm.buffer(), lm.size());
     // msg.time_stamp().update_to(tty->time_stamp().ticks());
     task->print(&sstr, NULL, true, false);
     log(thread, "%s", (const char*)lm);
diff -r af47e0398606 src/hotspot/share/interpreter/bytecodeInterpreter.cpp
--- a/src/hotspot/share/interpreter/bytecodeInterpreter.cpp	Wed Jun 05 16:01:00 2019 +0200
+++ b/src/hotspot/share/interpreter/bytecodeInterpreter.cpp	Tue Jun 11 18:00:52 2019 +0200
@@ -2870,7 +2870,7 @@
                      METHOD->print_value_string(),
                      (int)(istate->bcp() - METHOD->code_base()),
                      (int)continuation_bci, p2i(THREAD));
-        Exceptions::log_exception(except_oop, tempst);
+        Exceptions::log_exception(except_oop, tempst.as_string());
       }
       // for AbortVMOnException flag
       Exceptions::debug_check_abort(except_oop);
@@ -2887,7 +2887,7 @@
              METHOD->print_value_string(),
              (int)(istate->bcp() - METHOD->code_base()),
              p2i(THREAD));
-      Exceptions::log_exception(except_oop, tempst);
+      Exceptions::log_exception(except_oop, tempst.as_string());
     }
     // for AbortVMOnException flag
     Exceptions::debug_check_abort(except_oop);
diff -r af47e0398606 src/hotspot/share/interpreter/interpreterRuntime.cpp
--- a/src/hotspot/share/interpreter/interpreterRuntime.cpp	Wed Jun 05 16:01:00 2019 +0200
+++ b/src/hotspot/share/interpreter/interpreterRuntime.cpp	Tue Jun 11 18:00:52 2019 +0200
@@ -543,7 +543,7 @@
       tempst.print("interpreter method <%s>\n"
                    " at bci %d for thread " INTPTR_FORMAT " (%s)",
                    h_method->print_value_string(), current_bci, p2i(thread), thread->name());
-      Exceptions::log_exception(h_exception, tempst);
+      Exceptions::log_exception(h_exception, tempst.as_string());
     }
 // Don't go paging in something which won't be used.
 //     else if (extable->length() == 0) {
diff -r af47e0398606 src/hotspot/share/jvmci/jvmciRuntime.cpp
--- a/src/hotspot/share/jvmci/jvmciRuntime.cpp	Wed Jun 05 16:01:00 2019 +0200
+++ b/src/hotspot/share/jvmci/jvmciRuntime.cpp	Tue Jun 11 18:00:52 2019 +0200
@@ -284,7 +284,7 @@
       tempst.print("compiled method <%s>\n"
                    " at PC" INTPTR_FORMAT " for thread " INTPTR_FORMAT,
                    cm->method()->print_value_string(), p2i(pc), p2i(thread));
-      Exceptions::log_exception(exception, tempst);
+      Exceptions::log_exception(exception, tempst.as_string());
     }
     // for AbortVMOnException flag
     NOT_PRODUCT(Exceptions::debug_check_abort(exception));
diff -r af47e0398606 src/hotspot/share/utilities/events.hpp
--- a/src/hotspot/share/utilities/events.hpp	Wed Jun 05 16:01:00 2019 +0200
+++ b/src/hotspot/share/utilities/events.hpp	Tue Jun 11 18:00:52 2019 +0200
@@ -136,11 +136,6 @@
 
 // A simple wrapper class for fixed size text messages.
 class StringLogMessage : public FormatBuffer<256> {
- public:
-  // Wrap this buffer in a stringStream.
-  stringStream stream() {
-    return stringStream(_buf, size());
-  }
 };
 
 // A simple ring buffer of fixed size text messages.
diff -r af47e0398606 src/hotspot/share/utilities/exceptions.cpp
--- a/src/hotspot/share/utilities/exceptions.cpp	Wed Jun 05 16:01:00 2019 +0200
+++ b/src/hotspot/share/utilities/exceptions.cpp	Tue Jun 11 18:00:52 2019 +0200
@@ -527,17 +527,17 @@
 }
 
 // for logging exceptions
-void Exceptions::log_exception(Handle exception, stringStream tempst) {
+void Exceptions::log_exception(Handle exception, const char* message) {
   ResourceMark rm;
-  Symbol* message = java_lang_Throwable::detail_message(exception());
-  if (message != NULL) {
+  Symbol* detail_message = java_lang_Throwable::detail_message(exception());
+  if (detail_message != NULL) {
     log_info(exceptions)("Exception <%s: %s>\n thrown in %s",
                          exception->print_value_string(),
-                         message->as_C_string(),
-                         tempst.as_string());
+                         detail_message->as_C_string(),
+                         message);
   } else {
     log_info(exceptions)("Exception <%s>\n thrown in %s",
                          exception->print_value_string(),
-                         tempst.as_string());
+                         message);
   }
 }
diff -r af47e0398606 src/hotspot/share/utilities/exceptions.hpp
--- a/src/hotspot/share/utilities/exceptions.hpp	Wed Jun 05 16:01:00 2019 +0200
+++ b/src/hotspot/share/utilities/exceptions.hpp	Tue Jun 11 18:00:52 2019 +0200
@@ -185,7 +185,7 @@
   static void debug_check_abort(const char *value_string, const char* message = NULL);
 
   // for logging exceptions
-  static void log_exception(Handle exception, stringStream tempst);
+  static void log_exception(Handle exception, const char* message);
 };
 
 
diff -r af47e0398606 src/hotspot/share/utilities/ostream.hpp
--- a/src/hotspot/share/utilities/ostream.hpp	Wed Jun 05 16:01:00 2019 +0200
+++ b/src/hotspot/share/utilities/ostream.hpp	Tue Jun 11 18:00:52 2019 +0200
@@ -42,6 +42,10 @@
 // This allows for redirection via -XX:+DisplayVMOutputToStdout and
 // -XX:+DisplayVMOutputToStderr
 class outputStream : public ResourceObj {
+ private:
+   outputStream(const outputStream&);
+   outputStream& operator=(const outputStream&);
+
  protected:
    int _indentation; // current indentation
    int _width;       // width of the page