diff --git a/assets/jedis-db-local.zip b/assets/jedis-db-local.zip
new file mode 100644
index 0000000..ee4c893
--- /dev/null
+++ b/assets/jedis-db-local.zip
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:dffa92d88ae885a385bceecfdfb877ccf25c9b72c718cfc9c9f9734f9d9076c5
+size 6727425
diff --git a/codeql-jedis/README.org b/codeql-jedis/README.org
new file mode 100644
index 0000000..e5e84ce
--- /dev/null
+++ b/codeql-jedis/README.org
@@ -0,0 +1,51 @@
+* Jedis Codeql Setup
+  - fork at https://github.com/hohn/jedis
+  - github db build: enable code scanning, advanced config
+    - only java-kotlin, build-mode: none.
+    - creates https://github.com/hohn/jedis/blob/master/.github/workflows/codeql.yml
+    - action run at https://github.com/hohn/jedis/actions/workflows/codeql.yml
+    - db download
+      #+BEGIN_SRC sh
+        # list dbs
+        curl -H "Authorization: token $GITHUB_TOKEN" \
+             https://api.github.com/repos/hohn/jedis/code-scanning/analyses
+
+
+        # Get DB via curl
+        cd ~/work-gh/codeql-lab/assets
+        curl -H "Authorization: token $GITHUB_TOKEN" \
+             -H "Accept: application/zip" \
+             -L \
+             https://api.github.com/repos/hohn/jedis/code-scanning/codeql/databases/java \
+             -o jedis-database-gh.zip
+      #+END_SRC
+    - db at ~/work-gh/codeql-lab/assets/jedis-database-gh.zip
+  - local db build:
+    #+BEGIN_SRC sh 
+      cd ~/work-gh/codeql-lab/
+
+      # Add the submodule
+      git submodule add https://github.com/hohn/jedis extern/jedis
+
+      # Initialize and clone the submodule
+      git submodule update --init --recursive
+
+
+      # Build directly once to resolve any errors
+      cd ~/work-gh/codeql-lab/extern/jedis
+      mvn install -DskipTests=true -Dmaven.javadoc.skip=true -B -V
+
+      # Build under codeql
+      # Step 1: Clean any prior Maven builds
+      cd ~/work-gh/codeql-lab/extern/jedis
+      mvn clean
+
+      # Step 2: Run CodeQL DB creation with mvn install
+      cd ~/work-gh/codeql-lab
+      codeql database create assets/jedis-db-local \
+             --overwrite \
+             --language=java \
+             --command="mvn install -DskipTests=true -Dmaven.javadoc.skip=true -B -V" \
+             --source-root=extern/jedis
+    #+END_SRC
+    
diff --git a/codeql-jedis/codeql-pack.lock.yml b/codeql-jedis/codeql-pack.lock.yml
new file mode 100644
index 0000000..5300427
--- /dev/null
+++ b/codeql-jedis/codeql-pack.lock.yml
@@ -0,0 +1,4 @@
+---
+lockVersion: 1.0.0
+dependencies: {}
+compiled: false
diff --git a/codeql-jedis/example.ql b/codeql-jedis/example.ql
new file mode 100644
index 0000000..2631f65
--- /dev/null
+++ b/codeql-jedis/example.ql
@@ -0,0 +1,12 @@
+/**
+ * @name Empty block
+ * @kind problem
+ * @problem.severity warning
+ * @id java/example/empty-block
+ */
+
+import java
+
+from BlockStmt b
+where b.getNumStmt() = 0
+select b, "This is an empty block."
diff --git a/codeql-jedis/qlpack.yml b/codeql-jedis/qlpack.yml
new file mode 100644
index 0000000..be1b024
--- /dev/null
+++ b/codeql-jedis/qlpack.yml
@@ -0,0 +1,6 @@
+name: codeql-jedis/codeql-extra-queries-java
+version: 0.0.0
+dependencies:
+  # This uses the latest version of the codeql/java-all library.
+  # You may want to change to a more precise semver string.
+  codeql/java-all: "*"