8152730: File Leak in CompileBroker::init_compiler_thread_log of compileBroker.cpp:1665.

Summary: Added missing code to close file pointer.
Reviewed-by: kvn

src/share/vm/compiler/compileBroker.cpp

@@ -1851,6 +1851,10 @@ void CompileBroker::init_compiler_thread_log() {
           tty->print_cr("Opening compilation log %s", file_name);
         }
         CompileLog* log = new(ResourceObj::C_HEAP, mtCompiler) CompileLog(file_name, fp, thread_id);
+        if (log == NULL) {
+          fclose(fp);
+          return;
+        }
         thread->init_log(log);
 
         if (xtty != NULL) {