--- a/src/java.desktop/share/native/libsplashscreen/splashscreen_impl.c	Thu Mar 28 14:52:41 2019 +0000
+++ b/src/java.desktop/share/native/libsplashscreen/splashscreen_impl.c	Thu Mar 28 18:51:52 2019 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2005, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2005, 2019, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -46,7 +46,7 @@
     return &splash;
 }
 
-JNIEXPORT void JNICALL
+JNIEXPORT void
 SplashSetFileJarName(const char* fileName, const char* jarName) {
     Splash *splash = SplashGetInstance();
 
@@ -57,7 +57,7 @@
     splash->jarName = SplashConvertStringAlloc(jarName, &splash->jarNameLen);
 }
 
-JNIEXPORT void JNICALL
+JNIEXPORT void
 SplashInit()
 {
     Splash *splash = SplashGetInstance();
@@ -70,7 +70,7 @@
     SplashInitPlatform(splash);
 }
 
-JNIEXPORT void JNICALL
+JNIEXPORT void
 SplashClose()
 {
     Splash *splash = SplashGetInstance();
@@ -107,7 +107,7 @@
     SplashSetFileJarName(NULL, NULL);
 }
 
-JNIEXPORT void JNICALL
+JNIEXPORT void
 SplashSetScaleFactor(float scaleFactor)
 {
     Splash *splash = SplashGetInstance();
@@ -302,7 +302,7 @@
     return success;
 }
 
-JNIEXPORT int JNICALL
+JNIEXPORT int
 SplashLoadFile(const char *filename)
 {
     SplashStream stream;
@@ -310,7 +310,7 @@
                 SplashLoadStream(&stream);
 }
 
-JNIEXPORT int JNICALL
+JNIEXPORT int
 SplashLoadMemory(void *data, int size)
 {
     SplashStream stream;
@@ -395,7 +395,7 @@
     return 1;
 }
 
-JNIEXPORT int JNICALL
+JNIEXPORT int
 SplashGetScaledImgNameMaxPstfixLen(const char *fileName){
     return strlen(fileName) + strlen("@100pct") + 1;
 }

--- a/src/java.desktop/share/native/libsplashscreen/splashscreen_impl.h	Thu Mar 28 14:52:41 2019 +0000
+++ b/src/java.desktop/share/native/libsplashscreen/splashscreen_impl.h	Thu Mar 28 18:51:52 2019 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2005, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2005, 2019, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -30,29 +30,29 @@
 #include "splashscreen_gfx.h"
 #include "jni.h"
 
-JNIEXPORT int JNICALL
+JNIEXPORT int
 SplashLoadMemory(void *pdata, int size); /* requires preloading the file */
 
-JNIEXPORT int JNICALL
+JNIEXPORT int
 SplashLoadFile(const char *filename);  // FIXME: range checking for SplashLoadMemory
 
-JNIEXPORT void JNICALL
+JNIEXPORT void
 SplashInit(void);
 
-JNIEXPORT void JNICALL
+JNIEXPORT void
 SplashClose(void);
 
-JNIEXPORT void JNICALL
+JNIEXPORT void
 SplashSetScaleFactor(float);
 
-JNIEXPORT jboolean JNICALL
+JNIEXPORT jboolean
 SplashGetScaledImageName(const char*, const char*,
                               float*, char*, const size_t scaledImageNameLength);
 
-JNIEXPORT void JNICALL
+JNIEXPORT void
 SplashSetFileJarName(const char* fileName, const char* jarName);
 
-JNIEXPORT int JNICALL
+JNIEXPORT int
 SplashGetScaledImgNameMaxPstfixLen(const char*);
 typedef struct SplashImage
 {

--- a/src/java.desktop/unix/native/libsplashscreen/splashscreen_sys.c	Thu Mar 28 14:52:41 2019 +0000
+++ b/src/java.desktop/unix/native/libsplashscreen/splashscreen_sys.c	Thu Mar 28 18:51:52 2019 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2005, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2005, 2019, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -801,7 +801,7 @@
     sendctl(splash, SPLASHCTL_RECONFIGURE);
 }
 
-JNIEXPORT jboolean JNICALL
+JNIEXPORT jboolean
 SplashGetScaledImageName(const char* jarName, const char* fileName,
                            float *scaleFactor, char *scaledImgName,
                            const size_t scaledImageNameLength)

--- a/src/java.desktop/windows/native/libsplashscreen/splashscreen_sys.c	Thu Mar 28 14:52:41 2019 +0000
+++ b/src/java.desktop/windows/native/libsplashscreen/splashscreen_sys.c	Thu Mar 28 18:51:52 2019 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2005, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2005, 2019, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -574,7 +574,7 @@
     PostMessage(splash->hWnd, WM_SPLASHRECONFIGURE, 0, 0);
 }
 
-JNIEXPORT jboolean JNICALL
+JNIEXPORT jboolean
 SplashGetScaledImageName(const char* jarName, const char* fileName,
                            float *scaleFactor, char *scaleImageName,
                            const size_t scaledImageLength)