diff --git a/ext/jni/src/org/sqlite/jni/Tester1.java b/ext/jni/src/org/sqlite/jni/Tester1.java
index 5e05313c10..37125744fb 100644
--- a/ext/jni/src/org/sqlite/jni/Tester1.java
+++ b/ext/jni/src/org/sqlite/jni/Tester1.java
@@ -404,50 +404,52 @@ public class Tester1 implements Runnable {
   }
 
   private void testBindFetchInt64(){
-    sqlite3 db = createNewDb();
-    execSql(db, "CREATE TABLE t(a)");
-    sqlite3_stmt stmt = prepare(db, "INSERT INTO t(a) VALUES(?);");
-    long total1 = 0;
-    for(long i = 0xffffffff; i < 0xffffffff + 3; ++i ){
-      total1 += i;
-      sqlite3_bind_int64(stmt, 1, i);
-      sqlite3_step(stmt);
-      sqlite3_reset(stmt);
+    try (sqlite3 db = createNewDb()){
+      execSql(db, "CREATE TABLE t(a)");
+      sqlite3_stmt stmt = prepare(db, "INSERT INTO t(a) VALUES(?);");
+      long total1 = 0;
+      for(long i = 0xffffffff; i < 0xffffffff + 3; ++i ){
+        total1 += i;
+        sqlite3_bind_int64(stmt, 1, i);
+        sqlite3_step(stmt);
+        sqlite3_reset(stmt);
+      }
+      sqlite3_finalize(stmt);
+      stmt = prepare(db, "SELECT a FROM t ORDER BY a DESC;");
+      long total2 = 0;
+      while( SQLITE_ROW == sqlite3_step(stmt) ){
+        total2 += sqlite3_column_int64(stmt, 0);
+      }
+      sqlite3_finalize(stmt);
+      affirm(total1 == total2);
+      //sqlite3_close_v2(db);
     }
-    sqlite3_finalize(stmt);
-    stmt = prepare(db, "SELECT a FROM t ORDER BY a DESC;");
-    long total2 = 0;
-    while( SQLITE_ROW == sqlite3_step(stmt) ){
-      total2 += sqlite3_column_int64(stmt, 0);
-    }
-    sqlite3_finalize(stmt);
-    affirm(total1 == total2);
-    sqlite3_close_v2(db);
   }
 
   private void testBindFetchDouble(){
-    sqlite3 db = createNewDb();
-    execSql(db, "CREATE TABLE t(a)");
-    sqlite3_stmt stmt = prepare(db, "INSERT INTO t(a) VALUES(?);");
-    double total1 = 0;
-    for(double i = 1.5; i < 5.0; i = i + 1.0 ){
-      total1 += i;
-      sqlite3_bind_double(stmt, 1, i);
-      sqlite3_step(stmt);
-      sqlite3_reset(stmt);
+    try (sqlite3 db = createNewDb()){
+      execSql(db, "CREATE TABLE t(a)");
+      sqlite3_stmt stmt = prepare(db, "INSERT INTO t(a) VALUES(?);");
+      double total1 = 0;
+      for(double i = 1.5; i < 5.0; i = i + 1.0 ){
+        total1 += i;
+        sqlite3_bind_double(stmt, 1, i);
+        sqlite3_step(stmt);
+        sqlite3_reset(stmt);
+      }
+      sqlite3_finalize(stmt);
+      stmt = prepare(db, "SELECT a FROM t ORDER BY a DESC;");
+      double total2 = 0;
+      int counter = 0;
+      while( SQLITE_ROW == sqlite3_step(stmt) ){
+        ++counter;
+        total2 += sqlite3_column_double(stmt, 0);
+      }
+      affirm(4 == counter);
+      sqlite3_finalize(stmt);
+      affirm(total2<=total1+0.01 && total2>=total1-0.01);
+      //sqlite3_close_v2(db);
     }
-    sqlite3_finalize(stmt);
-    stmt = prepare(db, "SELECT a FROM t ORDER BY a DESC;");
-    double total2 = 0;
-    int counter = 0;
-    while( SQLITE_ROW == sqlite3_step(stmt) ){
-      ++counter;
-      total2 += sqlite3_column_double(stmt, 0);
-    }
-    affirm(4 == counter);
-    sqlite3_finalize(stmt);
-    affirm(total2<=total1+0.01 && total2>=total1-0.01);
-    sqlite3_close_v2(db);
   }
 
   private void testBindFetchText(){
@@ -491,20 +493,25 @@ public class Tester1 implements Runnable {
     affirm(3 == n);
     affirm("w😃rldhell🤩!🤩".equals(sbuf.toString()));
 
-    stmt = prepare(db, "SELECT ?, ?");
-    rc = sqlite3_bind_text(stmt, 1, "");
-    affirm( 0==rc );
-    rc = sqlite3_bind_text(stmt, 2, (String)null);
-    affirm( 0==rc );
-    rc = sqlite3_step(stmt);
-    affirm( SQLITE_ROW==rc );
-    byte[] colBa = sqlite3_column_text(stmt, 0);
-    affirm( 0==colBa.length );
-    colBa = sqlite3_column_text(stmt, 1);
-    affirm( null==colBa );
-    sqlite3_finalize(stmt);
+    try( sqlite3_stmt stmt2 = prepare(db, "SELECT ?, ?") ){
+      rc = sqlite3_bind_text(stmt2, 1, "");
+      affirm( 0==rc );
+      rc = sqlite3_bind_text(stmt2, 2, (String)null);
+      affirm( 0==rc );
+      rc = sqlite3_step(stmt2);
+      affirm( SQLITE_ROW==rc );
+      byte[] colBa = sqlite3_column_text(stmt2, 0);
+      affirm( 0==colBa.length );
+      colBa = sqlite3_column_text(stmt2, 1);
+      affirm( null==colBa );
+      //sqlite3_finalize(stmt);
+    }
 
-    sqlite3_close_v2(db);
+    if(true){
+      sqlite3_close_v2(db);
+    }else{
+      // Let the Object.finalize() override deal with it.
+    }
   }
 
   private void testBindFetchBlob(){
diff --git a/ext/jni/src/org/sqlite/jni/sqlite3.java b/ext/jni/src/org/sqlite/jni/sqlite3.java
index cfc6c08d47..3f15c45802 100644
--- a/ext/jni/src/org/sqlite/jni/sqlite3.java
+++ b/ext/jni/src/org/sqlite/jni/sqlite3.java
@@ -19,19 +19,30 @@ package org.sqlite.jni;
    simply provide a type-safe way to communicate it between Java
    and C via JNI.
 */
-public final class sqlite3 extends NativePointerHolder<sqlite3> {
+public final class sqlite3 extends NativePointerHolder<sqlite3>
+ implements AutoCloseable {
+
   // Only invoked from JNI
   private sqlite3(){}
 
   public String toString(){
-    long ptr = getNativePointer();
+    final long ptr = getNativePointer();
     if( 0==ptr ){
       return sqlite3.class.getSimpleName()+"@null";
     }
-    String fn = SQLite3Jni.sqlite3_db_filename(this, "main");
+    final String fn = SQLite3Jni.sqlite3_db_filename(this, "main");
     return sqlite3.class.getSimpleName()
       +"@"+String.format("0x%08x",ptr)
       +"["+((null == fn) ? "<unnamed>" : fn)+"]"
       ;
   }
+
+  @Override protected void finalize(){
+    //System.out.println(this+".finalize()");
+    SQLite3Jni.sqlite3_close_v2(this);
+  }
+
+  @Override public void close(){
+    SQLite3Jni.sqlite3_close_v2(this);
+  }
 }
diff --git a/ext/jni/src/org/sqlite/jni/sqlite3_stmt.java b/ext/jni/src/org/sqlite/jni/sqlite3_stmt.java
index d672301378..567a20cfa8 100644
--- a/ext/jni/src/org/sqlite/jni/sqlite3_stmt.java
+++ b/ext/jni/src/org/sqlite/jni/sqlite3_stmt.java
@@ -19,7 +19,17 @@ package org.sqlite.jni;
    simply provide a type-safe way to communicate it between Java and C
    via JNI.
 */
-public final class sqlite3_stmt extends NativePointerHolder<sqlite3_stmt> {
+public final class sqlite3_stmt extends NativePointerHolder<sqlite3_stmt>
+  implements AutoCloseable {
   // Only invoked from JNI.
   private sqlite3_stmt(){}
+
+  //For as-yet-unknown reasons, this triggers a JVM crash.
+  //@Override protected void finalize(){
+  //  SQLite3Jni.sqlite3_finalize(this);
+  //}
+
+  @Override public void close(){
+    SQLite3Jni.sqlite3_finalize(this);
+  }
 }
diff --git a/manifest b/manifest
index fa7bdd2dea..9246cdfdde 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C The\sjson_extract()\sfunction\snow\sworks\son\sBLOBs\swithout\sthe\sneed\sto\stranslate\ninto\san\sarray\sof\sJsonNode\sobjects.\s\sThis\sis\smuch\sfaster.
-D 2023-09-28T17:27:24.472
+C Merge\strunk\schanges\sinto\sthe\sjsonb\sbranch\sfor\sthe\scompiler\swarning\sfixes\nfrom\stwo\sdays\sago.
+D 2023-09-28T17:41:45.378
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -262,7 +262,7 @@ F ext/jni/src/org/sqlite/jni/SQLFunction.java 544a875d33fd160467d82e2397ac33157b
 F ext/jni/src/org/sqlite/jni/SQLite3Jni.java 73571d69420a72fa656097925acfbc3f670bb72685882094565303dcdfed71b5
 F ext/jni/src/org/sqlite/jni/ScalarFunction.java 6d387bb499fbe3bc13c53315335233dbf6a0c711e8fa7c521683219b041c614c
 F ext/jni/src/org/sqlite/jni/TableColumnMetadata.java 54511b4297fa28dcb3f49b24035e34ced10e3fd44fd0e458e784f4d6b0096dab
-F ext/jni/src/org/sqlite/jni/Tester1.java 30627199744e2c80b03d8d2ac439b2270a7050bedaa6d4b293cd08a2817741f4
+F ext/jni/src/org/sqlite/jni/Tester1.java 25be176398cf08cb9c0879ba33fd866cb8f579729dd4d44a4065421e1b899af4
 F ext/jni/src/org/sqlite/jni/TraceV2Callback.java beb0b064c1a5f8bfe585a324ed39a4e33edbe379a3fc60f1401661620d3ca7c0
 F ext/jni/src/org/sqlite/jni/UpdateHookCallback.java 8376f4a931f2d5612b295c003c9515ba933ee76d8f95610e89c339727376e36c
 F ext/jni/src/org/sqlite/jni/WindowFunction.java 488980f4dbb6bdd7067d6cb9c43e4075475e51c54d9b74a5834422654b126246
@@ -282,11 +282,11 @@ F ext/jni/src/org/sqlite/jni/fts5/fts5_api.java e2ad9bc06a9d307e0a6221c116457838
 F ext/jni/src/org/sqlite/jni/fts5/fts5_extension_function.java 1fe0f5692c1d67475d12b067f0469949073446f18c56eba5ee5da6ddd06db9b9
 F ext/jni/src/org/sqlite/jni/fts5/fts5_tokenizer.java ea993738b851038c16d98576abd0db3d6028a231f075a394fb8a78c7834d0f6c
 F ext/jni/src/org/sqlite/jni/package-info.java a3946db2504de747a1993c4f6e8ce604bec5a8e5a134b292c3b07527bc321a99
-F ext/jni/src/org/sqlite/jni/sqlite3.java 62b1b81935ccf3393472d17cb883dc5ff39c388ec3bc1de547f098a0217158fc
+F ext/jni/src/org/sqlite/jni/sqlite3.java 5e56a799ced58ea69e8bcad20c29a61fce32f21a7f4fb3e2702337cf8aa1a06e
 F ext/jni/src/org/sqlite/jni/sqlite3_backup.java d0bb06dd6225e76999ff6b7ab20f2643b1c4d4167431b3a93ea41943e41f094b
 F ext/jni/src/org/sqlite/jni/sqlite3_blob.java f28a30134f2e524eb7d5ab87f57f86c90140341a6e8369ee54509ac8bb96fa82
 F ext/jni/src/org/sqlite/jni/sqlite3_context.java 66ca95ce904044263a4aff684abe262d56f73e6b06bca6cf650761d79d7779ad
-F ext/jni/src/org/sqlite/jni/sqlite3_stmt.java 78e6d1b95ac600a9475e9db4623f69449322b0c93d1bd4e1616e76ed547ed9fc
+F ext/jni/src/org/sqlite/jni/sqlite3_stmt.java 36ecee9bdde2e70c7276d1c22b48fd9c40a77412e8e0694e9c09910997d6fb4f
 F ext/jni/src/org/sqlite/jni/sqlite3_value.java 3d1d4903e267bc0bc81d57d21f5e85978eff389a1a6ed46726dbe75f85e6914a
 F ext/jni/src/org/sqlite/jni/tester/SQLTester.java 9892797db57c6e01f0c1601b5866474b6c046f0fd6c5b64f411e5815c941040e
 F ext/jni/src/org/sqlite/jni/tester/test-script-interpreter.md f9f25126127045d051e918fe59004a1485311c50a13edbf18c79a6ff9160030e
@@ -712,7 +712,7 @@ F src/resolve.c 0c3046b88901336709cd09f474303a16fc54bce13a2befcab66d0fa6b44ca869
 F src/rowset.c 8432130e6c344b3401a8874c3cb49fefe6873fec593294de077afea2dce5ec97
 F src/select.c 7f9155185be78902818b21c2cd3e33f01b4306279a15d6719eb1bbb9779034aa
 F src/shell.c.in 62708bea44d4e43aa7b1270ed422d1d29e82297924d4e0f223c39336a3f582f8
-F src/sqlite.h.in 931a58d119d5cf87110648f39fa0bb9f1738b0068cb68250d893304a471bd6c0
+F src/sqlite.h.in 4f39f61c35348f0c56dd2c7a2294d1f0564389a0086dab80ce0960bfd772dc1b
 F src/sqlite3.rc 5121c9e10c3964d5755191c80dd1180c122fc3a8
 F src/sqlite3ext.h 2f30b2671f4c03cd27a43f039e11251391066c97d11385f5f963bb40b03038ac
 F src/sqliteInt.h 1fc2a2ee3016dd3ce433db8432bef50b8266d017527d38ccb8abed87c8305d76
@@ -720,7 +720,7 @@ F src/sqliteLimit.h 33b1c9baba578d34efe7dfdb43193b366111cdf41476b1e82699e14c11ee
 F src/status.c 160c445d7d28c984a0eae38c144f6419311ed3eace59b44ac6dafc20db4af749
 F src/table.c 0f141b58a16de7e2fbe81c308379e7279f4c6b50eb08efeec5892794a0ba30d1
 F src/tclsqlite.c ecbc3c99c0d0c3ed122a913f143026c26d38d57f33e06bb71185dd5c1efe37cd
-F src/test1.c 57bd144d022ed1356ae5238110beb251e79b0db5cc1ec44ef5b2f44306adb75f
+F src/test1.c c9f5b6f13797bd441ae810fbee27ff34b21000e1950dbeb779ea31154252dd1a
 F src/test2.c 54520d0565ef2b9bf0f8f1dcac43dc4d06baf4ffe13d10905f8d8c3ad3e4b9ab
 F src/test3.c e5178558c41ff53236ae0271e9acb3d6885a94981d2eb939536ee6474598840e
 F src/test4.c 4533b76419e7feb41b40582554663ed3cd77aaa54e135cf76b3205098cd6e664
@@ -2123,9 +2123,8 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P 7c1be8e361db87458ac9d8fcee080c2b558936539c852bb80f0f7941d61bf15d 3de58ec99444b16dfcda1e226420e2343450b77abd3faf33a88b6d18339ef17c
-R 0d79abb184ac0c9db2e32b0ee612448c
-T +closed 3de58ec99444b16dfcda1e226420e2343450b77abd3faf33a88b6d18339ef17c
+P 5853065b7ee326c04ddfcde64c178f487af04cd3adc3cc99f559907484ec169d b488b9fb71652eca90d2bf73d32f3d748badf517859dc833c58e021b0e017194
+R 9fc8b28e091a22aa2df6890c9cd30c84
 U drh
-Z a7c854fb2b4ed7c43dc9a96e56772dd9
+Z 296260cf4c2437a82708d346d0a00f10
 # Remove this line to create a well-formed Fossil manifest.
diff --git a/manifest.uuid b/manifest.uuid
index 0c72eba909..8230cfa03a 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-5853065b7ee326c04ddfcde64c178f487af04cd3adc3cc99f559907484ec169d
\ No newline at end of file
+cee113cc315b04fd75ccc172cf4529bf15b2050bf274433496c31a282e281ab8
\ No newline at end of file
diff --git a/src/sqlite.h.in b/src/sqlite.h.in
index 2d351008dc..54192422d6 100644
--- a/src/sqlite.h.in
+++ b/src/sqlite.h.in
@@ -10610,6 +10610,13 @@ SQLITE_EXPERIMENTAL int sqlite3_snapshot_recover(sqlite3 *db, const char *zDb);
 ** SQLITE_SERIALIZE_NOCOPY bit is set but no contiguous copy
 ** of the database exists.
 **
+** After the call, if the SQLITE_SERIALIZE_NOCOPY bit had been set,
+** the returned buffer content will remain accessible and unchanged
+** until either the next write operation on the connection or when
+** the connection is closed, and applications must not modify the
+** buffer. If the bit had been clear, the returned buffer will not
+** be accessed by SQLite after the call.
+**
 ** A call to sqlite3_serialize(D,S,P,F) might return NULL even if the
 ** SQLITE_SERIALIZE_NOCOPY bit is omitted from argument F if a memory
 ** allocation error occurs.
@@ -10658,6 +10665,9 @@ unsigned char *sqlite3_serialize(
 ** SQLite will try to increase the buffer size using sqlite3_realloc64()
 ** if writes on the database cause it to grow larger than M bytes.
 **
+** Applications must not modify the buffer P or invalidate it before
+** the database connection D is closed.
+**
 ** The sqlite3_deserialize() interface will fail with SQLITE_BUSY if the
 ** database is currently in a read transaction or is involved in a backup
 ** operation.
diff --git a/src/test1.c b/src/test1.c
index 145882f087..9ed9a7f000 100644
--- a/src/test1.c
+++ b/src/test1.c
@@ -4222,9 +4222,11 @@ static int SQLITE_TCLAPI test_bind_value_from_preupdate(
   sqlite3_stmt *pStmt;
   int idx;
   int bidx;
+#ifdef SQLITE_ENABLE_PREUPDATE_HOOK
   const char *z3 = 0;
   sqlite3 *db = 0;
   sqlite3_value *pVal = 0;
+#endif
 
   if( objc!=5 ){
     Tcl_WrongNumArgs(interp, 1, objv, "STMT N NEW|OLD IDX");
@@ -4233,11 +4235,11 @@ static int SQLITE_TCLAPI test_bind_value_from_preupdate(
 
   if( getStmtPointer(interp, Tcl_GetString(objv[1]), &pStmt) ) return TCL_ERROR;
   if( Tcl_GetIntFromObj(interp, objv[2], &idx) ) return TCL_ERROR;
-  z3 = Tcl_GetString(objv[3]);
   if( Tcl_GetIntFromObj(interp, objv[4], &bidx) ) return TCL_ERROR;
-  db = sqlite3_db_handle(pStmt);
 
 #ifdef SQLITE_ENABLE_PREUPDATE_HOOK
+  z3 = Tcl_GetString(objv[3]);
+  db = sqlite3_db_handle(pStmt);
   if( z3[0]=='n' ){
     sqlite3_preupdate_new(db, bidx, &pVal);
   }else if( z3[0]=='o' ){