1 files changed, 6 insertions, 0 deletions

diff --git a/platform/android/jni/mupdf.c b/platform/android/jni/mupdf.c
index d92528423..53cb7b3a9 100644
--- a/platform/android/jni/mupdf.c
+++ b/platform/android/jni/mupdf.c
@@ -515,6 +515,8 @@ JNI_FN(MuPDFCore_gotoPageInternal)(JNIEnv *env, jobject thiz, int page)
         fz_irect bbox;
         page_cache *pc;
         globals *glo = get_globals(env, thiz);
+        if (glo == NULL)
+                return;
         fz_context *ctx = glo->ctx;
 
         for (i = 0; i < NUM_CACHE; i++)
@@ -1803,6 +1805,8 @@ JNI_FN(MuPDFCore_getWidgetAreasInternal)(JNIEnv * env, jobject thiz, int pageNum
         int count;
         page_cache *pc;
         globals *glo = get_globals(env, thiz);
+        if (glo == NULL)
+                return NULL;
 
         rectFClass = (*env)->FindClass(env, "android/graphics/RectF");
         if (rectFClass == NULL) return NULL;
@@ -1860,6 +1864,8 @@ JNI_FN(MuPDFCore_getAnnotationsInternal)(JNIEnv * env, jobject thiz, int pageNum
         int count;
         page_cache *pc;
         globals *glo = get_globals(env, thiz);
+        if (glo == NULL)
+                return NULL;
 
         annotClass = (*env)->FindClass(env, PACKAGENAME "/Annotation");
         if (annotClass == NULL) return NULL;