Finally our data is no need to pass any jByteArray

native/src/main/jni/archive.c

@@ -37,7 +37,6 @@
 #define BLOCK_SIZE 4096 * 16
 
 static JNIEnv *env;
-static jbyteArray jbr;
 
 static int cur_index = 0; // Current entry we haven't read any data from it yet
 static struct archive* arc;
@@ -45,12 +44,6 @@ static struct archive* arc;
 static void* archiveAddr = 0;
 static jlong archiveSize = 0;
 
-static void JNI_prepare_environment(JNIEnv* jniEnv)
-{
-    env = jniEnv;
-    jbr = (*env)->NewGlobalRef(env, (*env)->NewByteArray(env, BLOCK_SIZE));
-}
-
 static int filename_is_playable_file(const char *name) {
     const char *dotptr = strrchr(name, '.');
     if (dotptr++) {
@@ -90,8 +83,8 @@ JNIEXPORT jint JNICALL
 Java_com_hippo_UriArchiveAccessor_openArchive(JNIEnv *_, jobject thiz, jlong addr, jlong size) {
     archiveAddr = (void *) addr;
     archiveSize = size;
+    env = _;
     madvise(archiveAddr, archiveSize, MADV_SEQUENTIAL | MADV_WILLNEED);
-    JNI_prepare_environment(_);
     archive_create();
     long r = archive_read_open_memory(arc, (const void *) archiveAddr, archiveSize);
     if (r) {
@@ -147,4 +140,4 @@ Java_com_hippo_UriArchiveAccessor_closeArchive(JNIEnv *jniEnv, jobject thiz) {
         archive_read_close(arc);
         archive_read_free(arc);
     }
-}
+}