src/java.base/share/native/libzip/ZipFile.c

@@ -82,15 +82,18 @@
 }
 
 JNIEXPORT jlong JNICALL
 Java_java_util_zip_ZipFile_open(JNIEnv *env, jclass cls, jstring name,
                                         jint mode, jlong lastModified,
-                                        jboolean usemmap)
+                                        jboolean usemmap,
+                                        jobjectArray tableAndEntriesByteBuffers)
 {
     const char *path = JNU_GetStringPlatformChars(env, name, 0);
     char *msg = 0;
     jlong result = 0;
+    jobject tableByteBuffer;
+    jobject entriesByteBuffer;
     int flag = 0;
     jzfile *zip = 0;
 
     if (mode & OPEN_READ) flag |= O_RDONLY;
 

@@ -118,10 +121,19 @@
             zip = ZIP_Put_In_Cache0(path, zfd, &msg, lastModified, usemmap);
         }
 
         if (zip != 0) {
             result = ptr_to_jlong(zip);
+            if (tableAndEntriesByteBuffers != NULL) {
+                tableByteBuffer = (*env)->NewDirectByteBuffer(env, zip->table, (jlong) zip->tablelen * sizeof(zip->table[0]));
+                if (tableByteBuffer == NULL) goto finally;
+                entriesByteBuffer = (*env)->NewDirectByteBuffer(env, zip->entries, (jlong) zip->total * sizeof(zip->entries[0]));
+                if (tableByteBuffer == NULL) goto finally;
+                (*env)->SetObjectArrayElement(env, tableAndEntriesByteBuffers, 0, tableByteBuffer);
+                if ((*env)->ExceptionCheck(env)) goto finally;
+                (*env)->SetObjectArrayElement(env, tableAndEntriesByteBuffers, 1, entriesByteBuffer);
+            }
         } else if (msg != 0) {
             ThrowZipException(env, msg);
             free(msg);
         } else if (errno == ENOMEM) {
             JNU_ThrowOutOfMemoryError(env, 0);