jni: Regenerated EGL/GLES JNI files to support null arguments

Bug 9321681

Change-Id: I397c1fbdfcc38a697b4f608546822a739e55e1d9
diff --git a/core/jni/android_opengl_EGL14.cpp b/core/jni/android_opengl_EGL14.cpp
index 568473c..c8b1784 100644
--- a/core/jni/android_opengl_EGL14.cpp
+++ b/core/jni/android_opengl_EGL14.cpp
@@ -184,51 +184,43 @@
     jint _minorRemaining;
     EGLint *minor = (EGLint *) 0;
 
-    if (!major_ref) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "major == null";
-        goto exit;
+    if (major_ref) {
+        if (majorOffset < 0) {
+            _exception = 1;
+            _exceptionType = "java/lang/IllegalArgumentException";
+            _exceptionMessage = "majorOffset < 0";
+            goto exit;
+        }
+        _majorRemaining = _env->GetArrayLength(major_ref) - majorOffset;
+        if (_majorRemaining < 1) {
+            _exception = 1;
+            _exceptionType = "java/lang/IllegalArgumentException";
+            _exceptionMessage = "length - majorOffset < 1 < needed";
+            goto exit;
+        }
+        major_base = (EGLint *)
+            _env->GetIntArrayElements(major_ref, (jboolean *)0);
+        major = major_base + majorOffset;
     }
-    if (majorOffset < 0) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "majorOffset < 0";
-        goto exit;
-    }
-    _majorRemaining = _env->GetArrayLength(major_ref) - majorOffset;
-    if (_majorRemaining < 1) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "length - majorOffset < 1 < needed";
-        goto exit;
-    }
-    major_base = (EGLint *)
-        _env->GetIntArrayElements(major_ref, (jboolean *)0);
-    major = major_base + majorOffset;
 
-    if (!minor_ref) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "minor == null";
-        goto exit;
+    if (minor_ref) {
+        if (minorOffset < 0) {
+            _exception = 1;
+            _exceptionType = "java/lang/IllegalArgumentException";
+            _exceptionMessage = "minorOffset < 0";
+            goto exit;
+        }
+        _minorRemaining = _env->GetArrayLength(minor_ref) - minorOffset;
+        if (_minorRemaining < 1) {
+            _exception = 1;
+            _exceptionType = "java/lang/IllegalArgumentException";
+            _exceptionMessage = "length - minorOffset < 1 < needed";
+            goto exit;
+        }
+        minor_base = (EGLint *)
+            _env->GetIntArrayElements(minor_ref, (jboolean *)0);
+        minor = minor_base + minorOffset;
     }
-    if (minorOffset < 0) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "minorOffset < 0";
-        goto exit;
-    }
-    _minorRemaining = _env->GetArrayLength(minor_ref) - minorOffset;
-    if (_minorRemaining < 1) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "length - minorOffset < 1 < needed";
-        goto exit;
-    }
-    minor_base = (EGLint *)
-        _env->GetIntArrayElements(minor_ref, (jboolean *)0);
-    minor = minor_base + minorOffset;
 
     _returnValue = eglInitialize(
         (EGLDisplay)dpy_native,
@@ -289,26 +281,22 @@
     jint _num_configRemaining;
     EGLint *num_config = (EGLint *) 0;
 
-    if (!configs_ref) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "configs == null";
-        goto exit;
+    if (configs_ref) {
+        if (configsOffset < 0) {
+            _exception = 1;
+            _exceptionType = "java/lang/IllegalArgumentException";
+            _exceptionMessage = "configsOffset < 0";
+            goto exit;
+        }
+        _configsRemaining = _env->GetArrayLength(configs_ref) - configsOffset;
+        if (_configsRemaining < config_size) {
+            _exception = 1;
+            _exceptionType = "java/lang/IllegalArgumentException";
+            _exceptionMessage = "length - configsOffset < config_size < needed";
+            goto exit;
+        }
+        configs = new EGLConfig[_configsRemaining];
     }
-    if (configsOffset < 0) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "configsOffset < 0";
-        goto exit;
-    }
-    _configsRemaining = _env->GetArrayLength(configs_ref) - configsOffset;
-    if (_configsRemaining < config_size) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "length - configsOffset < config_size < needed";
-        goto exit;
-    }
-    configs = new EGLConfig[_configsRemaining];
 
     if (!num_config_ref) {
         _exception = 1;
@@ -401,26 +389,22 @@
         goto exit;
     }
 
-    if (!configs_ref) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "configs == null";
-        goto exit;
+    if (configs_ref) {
+        if (configsOffset < 0) {
+            _exception = 1;
+            _exceptionType = "java/lang/IllegalArgumentException";
+            _exceptionMessage = "configsOffset < 0";
+            goto exit;
+        }
+        _configsRemaining = _env->GetArrayLength(configs_ref) - configsOffset;
+        if (_configsRemaining < config_size) {
+            _exception = 1;
+            _exceptionType = "java/lang/IllegalArgumentException";
+            _exceptionMessage = "length - configsOffset < config_size < needed";
+            goto exit;
+        }
+        configs = new EGLConfig[_configsRemaining];
     }
-    if (configsOffset < 0) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "configsOffset < 0";
-        goto exit;
-    }
-    _configsRemaining = _env->GetArrayLength(configs_ref) - configsOffset;
-    if (_configsRemaining < config_size) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "length - configsOffset < config_size < needed";
-        goto exit;
-    }
-    configs = new EGLConfig[_configsRemaining];
 
     if (!num_config_ref) {
         _exception = 1;
@@ -546,18 +530,32 @@
     EGLint *attrib_list = (EGLint *) 0;
     android::sp<ANativeWindow> window;
 
-    if (!attrib_list_ref) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "attrib_list == null";
-        goto exit;
+    if (attrib_list_ref) {
+        if (offset < 0) {
+            _exception = 1;
+            _exceptionType = "java/lang/IllegalArgumentException";
+            _exceptionMessage = "offset < 0";
+            goto exit;
+        }
+        _remaining = _env->GetArrayLength(attrib_list_ref) - offset;
+        attrib_list_base = (EGLint *)
+            _env->GetIntArrayElements(attrib_list_ref, (jboolean *)0);
+        attrib_list = attrib_list_base + offset;
+        attrib_list_sentinel = 0;
+        for (int i = _remaining - 1; i >= 0; i--)  {
+            if (*((EGLint*)(attrib_list + i)) == EGL_NONE){
+                attrib_list_sentinel = 1;
+                break;
+            }
+        }
+        if (attrib_list_sentinel == 0) {
+            _exception = 1;
+            _exceptionType = "java/lang/IllegalArgumentException";
+            _exceptionMessage = "attrib_list must contain EGL_NONE!";
+            goto exit;
+        }
     }
-    if (offset < 0) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "offset < 0";
-        goto exit;
-    }
+
     if (win == NULL) {
 not_valid_surface:
         _exception = 1;
@@ -571,24 +569,6 @@
     if (window == NULL)
         goto not_valid_surface;
 
-    _remaining = _env->GetArrayLength(attrib_list_ref) - offset;
-    attrib_list_base = (EGLint *)
-        _env->GetIntArrayElements(attrib_list_ref, (jboolean *)0);
-    attrib_list = attrib_list_base + offset;
-    attrib_list_sentinel = 0;
-    for (int i = _remaining - 1; i >= 0; i--)  {
-        if (*((EGLint*)(attrib_list + i)) == EGL_NONE){
-            attrib_list_sentinel = 1;
-            break;
-        }
-    }
-    if (attrib_list_sentinel == 0) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "attrib_list must contain EGL_NONE!";
-        goto exit;
-    }
-
     _returnValue = eglCreateWindowSurface(
         (EGLDisplay)dpy_native,
         (EGLConfig)config_native,
@@ -703,34 +683,30 @@
     jint _remaining;
     EGLint *attrib_list = (EGLint *) 0;
 
-    if (!attrib_list_ref) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "attrib_list == null";
-        goto exit;
-    }
-    if (offset < 0) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "offset < 0";
-        goto exit;
-    }
-    _remaining = _env->GetArrayLength(attrib_list_ref) - offset;
-    attrib_list_base = (EGLint *)
-        _env->GetIntArrayElements(attrib_list_ref, (jboolean *)0);
-    attrib_list = attrib_list_base + offset;
-    attrib_list_sentinel = false;
-    for (int i = _remaining - 1; i >= 0; i--)  {
-        if (attrib_list[i] == EGL_NONE){
-            attrib_list_sentinel = true;
-            break;
+    if (attrib_list_ref) {
+        if (offset < 0) {
+            _exception = 1;
+            _exceptionType = "java/lang/IllegalArgumentException";
+            _exceptionMessage = "offset < 0";
+            goto exit;
         }
-    }
-    if (attrib_list_sentinel == false) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "attrib_list must contain EGL_NONE!";
-        goto exit;
+        _remaining = _env->GetArrayLength(attrib_list_ref) - offset;
+        attrib_list_base = (EGLint *)
+            _env->GetIntArrayElements(attrib_list_ref, (jboolean *)0);
+        attrib_list = attrib_list_base + offset;
+        attrib_list_sentinel = false;
+        for (int i = _remaining - 1; i >= 0; i--)  {
+            if (attrib_list[i] == EGL_NONE){
+                attrib_list_sentinel = true;
+                break;
+            }
+        }
+        if (attrib_list_sentinel == false) {
+            _exception = 1;
+            _exceptionType = "java/lang/IllegalArgumentException";
+            _exceptionMessage = "attrib_list must contain EGL_NONE!";
+            goto exit;
+        }
     }
 
     _returnValue = eglCreatePbufferSurface(
@@ -882,34 +858,30 @@
     jint _remaining;
     EGLint *attrib_list = (EGLint *) 0;
 
-    if (!attrib_list_ref) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "attrib_list == null";
-        goto exit;
-    }
-    if (offset < 0) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "offset < 0";
-        goto exit;
-    }
-    _remaining = _env->GetArrayLength(attrib_list_ref) - offset;
-    attrib_list_base = (EGLint *)
-        _env->GetIntArrayElements(attrib_list_ref, (jboolean *)0);
-    attrib_list = attrib_list_base + offset;
-    attrib_list_sentinel = false;
-    for (int i = _remaining - 1; i >= 0; i--)  {
-        if (attrib_list[i] == EGL_NONE){
-            attrib_list_sentinel = true;
-            break;
+    if (attrib_list_ref) {
+        if (offset < 0) {
+            _exception = 1;
+            _exceptionType = "java/lang/IllegalArgumentException";
+            _exceptionMessage = "offset < 0";
+            goto exit;
         }
-    }
-    if (attrib_list_sentinel == false) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "attrib_list must contain EGL_NONE!";
-        goto exit;
+        _remaining = _env->GetArrayLength(attrib_list_ref) - offset;
+        attrib_list_base = (EGLint *)
+            _env->GetIntArrayElements(attrib_list_ref, (jboolean *)0);
+        attrib_list = attrib_list_base + offset;
+        attrib_list_sentinel = false;
+        for (int i = _remaining - 1; i >= 0; i--)  {
+            if (attrib_list[i] == EGL_NONE){
+                attrib_list_sentinel = true;
+                break;
+            }
+        }
+        if (attrib_list_sentinel == false) {
+            _exception = 1;
+            _exceptionType = "java/lang/IllegalArgumentException";
+            _exceptionMessage = "attrib_list must contain EGL_NONE!";
+            goto exit;
+        }
     }
 
     _returnValue = eglCreatePbufferFromClientBuffer(
diff --git a/core/jni/android_opengl_GLES20.cpp b/core/jni/android_opengl_GLES20.cpp
index b9f61a9..ac3bf7a 100644
--- a/core/jni/android_opengl_GLES20.cpp
+++ b/core/jni/android_opengl_GLES20.cpp
@@ -1783,22 +1783,18 @@
     jint _nameRemaining;
     char *name = (char *) 0;
 
-    if (!length_ref) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "length == null";
-        goto exit;
+    if (length_ref) {
+        if (lengthOffset < 0) {
+            _exception = 1;
+            _exceptionType = "java/lang/IllegalArgumentException";
+            _exceptionMessage = "lengthOffset < 0";
+            goto exit;
+        }
+        _lengthRemaining = _env->GetArrayLength(length_ref) - lengthOffset;
+        length_base = (GLsizei *)
+            _env->GetIntArrayElements(length_ref, (jboolean *)0);
+        length = length_base + lengthOffset;
     }
-    if (lengthOffset < 0) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "lengthOffset < 0";
-        goto exit;
-    }
-    _lengthRemaining = _env->GetArrayLength(length_ref) - lengthOffset;
-    length_base = (GLsizei *)
-        _env->GetIntArrayElements(length_ref, (jboolean *)0);
-    length = length_base + lengthOffset;
 
     if (!size_ref) {
         _exception = 1;
@@ -2111,22 +2107,18 @@
     jint _nameRemaining;
     char *name = (char *) 0;
 
-    if (!length_ref) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "length == null";
-        goto exit;
+    if (length_ref) {
+        if (lengthOffset < 0) {
+            _exception = 1;
+            _exceptionType = "java/lang/IllegalArgumentException";
+            _exceptionMessage = "lengthOffset < 0";
+            goto exit;
+        }
+        _lengthRemaining = _env->GetArrayLength(length_ref) - lengthOffset;
+        length_base = (GLsizei *)
+            _env->GetIntArrayElements(length_ref, (jboolean *)0);
+        length = length_base + lengthOffset;
     }
-    if (lengthOffset < 0) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "lengthOffset < 0";
-        goto exit;
-    }
-    _lengthRemaining = _env->GetArrayLength(length_ref) - lengthOffset;
-    length_base = (GLsizei *)
-        _env->GetIntArrayElements(length_ref, (jboolean *)0);
-    length = length_base + lengthOffset;
 
     if (!size_ref) {
         _exception = 1;
@@ -2434,28 +2426,24 @@
     jint _shadersRemaining;
     GLuint *shaders = (GLuint *) 0;
 
-    if (!count_ref) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "count == null";
-        goto exit;
+    if (count_ref) {
+        if (countOffset < 0) {
+            _exception = 1;
+            _exceptionType = "java/lang/IllegalArgumentException";
+            _exceptionMessage = "countOffset < 0";
+            goto exit;
+        }
+        _countRemaining = _env->GetArrayLength(count_ref) - countOffset;
+        if (_countRemaining < 1) {
+            _exception = 1;
+            _exceptionType = "java/lang/IllegalArgumentException";
+            _exceptionMessage = "length - countOffset < 1 < needed";
+            goto exit;
+        }
+        count_base = (GLsizei *)
+            _env->GetIntArrayElements(count_ref, (jboolean *)0);
+        count = count_base + countOffset;
     }
-    if (countOffset < 0) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "countOffset < 0";
-        goto exit;
-    }
-    _countRemaining = _env->GetArrayLength(count_ref) - countOffset;
-    if (_countRemaining < 1) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "length - countOffset < 1 < needed";
-        goto exit;
-    }
-    count_base = (GLsizei *)
-        _env->GetIntArrayElements(count_ref, (jboolean *)0);
-    count = count_base + countOffset;
 
     if (!shaders_ref) {
         _exception = 1;
@@ -2526,20 +2514,18 @@
             goto exit;
         }
     }
-    if (shaders_buf) {
-        shaders = (GLuint *)getPointer(_env, shaders_buf, (jarray*)&_shadersArray, &_shadersRemaining, &_shadersBufferOffset);
-        if (_shadersRemaining < maxcount) {
-            _exception = 1;
-            _exceptionType = "java/lang/IllegalArgumentException";
-            _exceptionMessage = "remaining() < maxcount < needed";
-            goto exit;
-        }
+    shaders = (GLuint *)getPointer(_env, shaders_buf, (jarray*)&_shadersArray, &_shadersRemaining, &_shadersBufferOffset);
+    if (_shadersRemaining < maxcount) {
+        _exception = 1;
+        _exceptionType = "java/lang/IllegalArgumentException";
+        _exceptionMessage = "remaining() < maxcount < needed";
+        goto exit;
     }
     if (count_buf && count == NULL) {
         char * _countBase = (char *)_env->GetIntArrayElements(_countArray, (jboolean *) 0);
         count = (GLsizei *) (_countBase + _countBufferOffset);
     }
-    if (shaders_buf && shaders == NULL) {
+    if (shaders == NULL) {
         char * _shadersBase = (char *)_env->GetIntArrayElements(_shadersArray, (jboolean *) 0);
         shaders = (GLuint *) (_shadersBase + _shadersBufferOffset);
     }
@@ -3262,22 +3248,18 @@
     jint _sourceRemaining;
     char *source = (char *) 0;
 
-    if (!length_ref) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "length == null";
-        goto exit;
+    if (length_ref) {
+        if (lengthOffset < 0) {
+            _exception = 1;
+            _exceptionType = "java/lang/IllegalArgumentException";
+            _exceptionMessage = "lengthOffset < 0";
+            goto exit;
+        }
+        _lengthRemaining = _env->GetArrayLength(length_ref) - lengthOffset;
+        length_base = (GLsizei *)
+            _env->GetIntArrayElements(length_ref, (jboolean *)0);
+        length = length_base + lengthOffset;
     }
-    if (lengthOffset < 0) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "lengthOffset < 0";
-        goto exit;
-    }
-    _lengthRemaining = _env->GetArrayLength(length_ref) - lengthOffset;
-    length_base = (GLsizei *)
-        _env->GetIntArrayElements(length_ref, (jboolean *)0);
-    length = length_base + lengthOffset;
 
     if (!source_ref) {
         _exception = 1;
diff --git a/core/jni/android_opengl_GLES30.cpp b/core/jni/android_opengl_GLES30.cpp
index 8eb5044..c9b5af7 100644
--- a/core/jni/android_opengl_GLES30.cpp
+++ b/core/jni/android_opengl_GLES30.cpp
@@ -501,8 +501,10 @@
     jint _remaining;
     GLvoid *pixels = (GLvoid *) 0;
 
-    pixels = (GLvoid *)getPointer(_env, pixels_buf, (jarray*)&_array, &_remaining, &_bufferOffset);
-    if (pixels == NULL) {
+    if (pixels_buf) {
+        pixels = (GLvoid *)getPointer(_env, pixels_buf, (jarray*)&_array, &_remaining, &_bufferOffset);
+    }
+    if (pixels_buf && pixels == NULL) {
         char * _pixelsBase = (char *)_env->GetPrimitiveArrayCritical(_array, (jboolean *) 0);
         pixels = (GLvoid *) (_pixelsBase + _bufferOffset);
     }
@@ -1910,22 +1912,18 @@
     jint _nameRemaining;
     char *name = (char *) 0;
 
-    if (!length_ref) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "length == null";
-        goto exit;
+    if (length_ref) {
+        if (lengthOffset < 0) {
+            _exception = 1;
+            _exceptionType = "java/lang/IllegalArgumentException";
+            _exceptionMessage = "lengthOffset < 0";
+            goto exit;
+        }
+        _lengthRemaining = _env->GetArrayLength(length_ref) - lengthOffset;
+        length_base = (GLsizei *)
+            _env->GetIntArrayElements(length_ref, (jboolean *)0);
+        length = length_base + lengthOffset;
     }
-    if (lengthOffset < 0) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "lengthOffset < 0";
-        goto exit;
-    }
-    _lengthRemaining = _env->GetArrayLength(length_ref) - lengthOffset;
-    length_base = (GLsizei *)
-        _env->GetIntArrayElements(length_ref, (jboolean *)0);
-    length = length_base + lengthOffset;
 
     if (!size_ref) {
         _exception = 1;
@@ -3591,22 +3589,18 @@
     jint _nameRemaining;
     GLchar* _name = (GLchar*)0;
 
-    if (!length_ref) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "length == null";
-        goto exit;
+    if (length_ref) {
+        if (lengthOffset < 0) {
+            _exception = 1;
+            _exceptionType = "java/lang/IllegalArgumentException";
+            _exceptionMessage = "lengthOffset < 0";
+            goto exit;
+        }
+        _lengthRemaining = _env->GetArrayLength(length_ref) - lengthOffset;
+        _length_base = (GLsizei*)_env->GetIntArrayElements(
+                length_ref, (jboolean*)0);
+        _length = _length_base + lengthOffset;
     }
-    if (lengthOffset < 0) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "lengthOffset < 0";
-        goto exit;
-    }
-    _lengthRemaining = _env->GetArrayLength(length_ref) - lengthOffset;
-    _length_base = (GLsizei*)_env->GetIntArrayElements(
-            length_ref, (jboolean*)0);
-    _length = _length_base + lengthOffset;
 
     if (!name_ref) {
         _exception = 1;
@@ -3900,22 +3894,18 @@
     jint _valuesRemaining;
     GLint *values = (GLint *) 0;
 
-    if (!length_ref) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "length == null";
-        goto exit;
+    if (length_ref) {
+        if (lengthOffset < 0) {
+            _exception = 1;
+            _exceptionType = "java/lang/IllegalArgumentException";
+            _exceptionMessage = "lengthOffset < 0";
+            goto exit;
+        }
+        _lengthRemaining = _env->GetArrayLength(length_ref) - lengthOffset;
+        length_base = (GLsizei *)
+            _env->GetIntArrayElements(length_ref, (jboolean *)0);
+        length = length_base + lengthOffset;
     }
-    if (lengthOffset < 0) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "lengthOffset < 0";
-        goto exit;
-    }
-    _lengthRemaining = _env->GetArrayLength(length_ref) - lengthOffset;
-    length_base = (GLsizei *)
-        _env->GetIntArrayElements(length_ref, (jboolean *)0);
-    length = length_base + lengthOffset;
 
     if (!values_ref) {
         _exception = 1;
@@ -3969,9 +3959,11 @@
     jint _valuesRemaining;
     GLint *values = (GLint *) 0;
 
-    length = (GLsizei *)getPointer(_env, length_buf, (jarray*)&_lengthArray, &_lengthRemaining, &_lengthBufferOffset);
+    if (length_buf) {
+        length = (GLsizei *)getPointer(_env, length_buf, (jarray*)&_lengthArray, &_lengthRemaining, &_lengthBufferOffset);
+    }
     values = (GLint *)getPointer(_env, values_buf, (jarray*)&_valuesArray, &_valuesRemaining, &_valuesBufferOffset);
-    if (length == NULL) {
+    if (length_buf && length == NULL) {
         char * _lengthBase = (char *)_env->GetIntArrayElements(_lengthArray, (jboolean *) 0);
         length = (GLsizei *) (_lengthBase + _lengthBufferOffset);
     }
@@ -4772,22 +4764,18 @@
     jint _binaryRemaining;
     GLvoid *binary = (GLvoid *) 0;
 
-    if (!length_ref) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "length == null";
-        goto exit;
+    if (length_ref) {
+        if (lengthOffset < 0) {
+            _exception = 1;
+            _exceptionType = "java/lang/IllegalArgumentException";
+            _exceptionMessage = "lengthOffset < 0";
+            goto exit;
+        }
+        _lengthRemaining = _env->GetArrayLength(length_ref) - lengthOffset;
+        length_base = (GLsizei *)
+            _env->GetIntArrayElements(length_ref, (jboolean *)0);
+        length = length_base + lengthOffset;
     }
-    if (lengthOffset < 0) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "lengthOffset < 0";
-        goto exit;
-    }
-    _lengthRemaining = _env->GetArrayLength(length_ref) - lengthOffset;
-    length_base = (GLsizei *)
-        _env->GetIntArrayElements(length_ref, (jboolean *)0);
-    length = length_base + lengthOffset;
 
     if (!binaryFormat_ref) {
         _exception = 1;
@@ -4853,10 +4841,12 @@
     jint _binaryRemaining;
     GLvoid *binary = (GLvoid *) 0;
 
-    length = (GLsizei *)getPointer(_env, length_buf, (jarray*)&_lengthArray, &_lengthRemaining, &_lengthBufferOffset);
+    if (length_buf) {
+        length = (GLsizei *)getPointer(_env, length_buf, (jarray*)&_lengthArray, &_lengthRemaining, &_lengthBufferOffset);
+    }
     binaryFormat = (GLenum *)getPointer(_env, binaryFormat_buf, (jarray*)&_binaryFormatArray, &_binaryFormatRemaining, &_binaryFormatBufferOffset);
     binary = (GLvoid *)getPointer(_env, binary_buf, (jarray*)&_binaryArray, &_binaryRemaining, &_binaryBufferOffset);
-    if (length == NULL) {
+    if (length_buf && length == NULL) {
         char * _lengthBase = (char *)_env->GetIntArrayElements(_lengthArray, (jboolean *) 0);
         length = (GLsizei *) (_lengthBase + _lengthBufferOffset);
     }
diff --git a/core/jni/android_opengl_GLES31.cpp b/core/jni/android_opengl_GLES31.cpp
index e427388..5751add 100644
--- a/core/jni/android_opengl_GLES31.cpp
+++ b/core/jni/android_opengl_GLES31.cpp
@@ -714,22 +714,18 @@
         _env->GetIntArrayElements(props_ref, (jboolean *)0);
     props = props_base + propsOffset;
 
-    if (!length_ref) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "length == null";
-        goto exit;
+    if (length_ref) {
+        if (lengthOffset < 0) {
+            _exception = 1;
+            _exceptionType = "java/lang/IllegalArgumentException";
+            _exceptionMessage = "lengthOffset < 0";
+            goto exit;
+        }
+        _lengthRemaining = _env->GetArrayLength(length_ref) - lengthOffset;
+        length_base = (GLsizei *)
+            _env->GetIntArrayElements(length_ref, (jboolean *)0);
+        length = length_base + lengthOffset;
     }
-    if (lengthOffset < 0) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "lengthOffset < 0";
-        goto exit;
-    }
-    _lengthRemaining = _env->GetArrayLength(length_ref) - lengthOffset;
-    length_base = (GLsizei *)
-        _env->GetIntArrayElements(length_ref, (jboolean *)0);
-    length = length_base + lengthOffset;
 
     if (!params_ref) {
         _exception = 1;
@@ -795,13 +791,15 @@
     GLint *params = (GLint *) 0;
 
     props = (GLenum *)getPointer(_env, props_buf, (jarray*)&_propsArray, &_propsRemaining, &_propsBufferOffset);
-    length = (GLsizei *)getPointer(_env, length_buf, (jarray*)&_lengthArray, &_lengthRemaining, &_lengthBufferOffset);
+    if (length_buf) {
+        length = (GLsizei *)getPointer(_env, length_buf, (jarray*)&_lengthArray, &_lengthRemaining, &_lengthBufferOffset);
+    }
     params = (GLint *)getPointer(_env, params_buf, (jarray*)&_paramsArray, &_paramsRemaining, &_paramsBufferOffset);
     if (props == NULL) {
         char * _propsBase = (char *)_env->GetIntArrayElements(_propsArray, (jboolean *) 0);
         props = (GLenum *) (_propsBase + _propsBufferOffset);
     }
-    if (length == NULL) {
+    if (length_buf && length == NULL) {
         char * _lengthBase = (char *)_env->GetIntArrayElements(_lengthArray, (jboolean *) 0);
         length = (GLsizei *) (_lengthBase + _lengthBufferOffset);
     }
diff --git a/core/jni/android_opengl_GLES31Ext.cpp b/core/jni/android_opengl_GLES31Ext.cpp
index 180c693..5be7be0 100644
--- a/core/jni/android_opengl_GLES31Ext.cpp
+++ b/core/jni/android_opengl_GLES31Ext.cpp
@@ -646,13 +646,9 @@
     const char * _exceptionMessage = NULL;
     const char* _nativelabel = 0;
 
-    if (!label) {
-        _exception = 1;
-        _exceptionType = "java/lang/IllegalArgumentException";
-        _exceptionMessage = "label == null";
-        goto exit;
+    if (label) {
+        _nativelabel = _env->GetStringUTFChars(label, 0);
     }
-    _nativelabel = _env->GetStringUTFChars(label, 0);
 
     glObjectLabelKHR(
         (GLenum)identifier,
@@ -660,8 +656,6 @@
         (GLsizei)length,
         (GLchar *)_nativelabel
     );
-
-exit:
     if (_nativelabel) {
         _env->ReleaseStringUTFChars(label, _nativelabel);
     }