diff --git a/.dockerignore b/.dockerignore
deleted file mode 100644
index a7db75e..0000000
--- a/.dockerignore
+++ /dev/null
@@ -1,2 +0,0 @@
-*
-!/piped.sh
diff --git a/Dockerfile.openj9 b/Dockerfile.openj9
index 39dfac8..66ebf66 100644
--- a/Dockerfile.openj9
+++ b/Dockerfile.openj9
@@ -1,51 +1,51 @@
 FROM ubuntu:25.04 AS build
 
-# partially copied from mkdocker.sh
+# partly copied from mkdocker.sh
 # Copyright IBM Corp (Eclipse Public License 2.0)
 RUN apt -qq update \
-  && apt -qq upgrade -y \
-  && apt -qq install -y --no-install-recommends \
-    ant ant-contrib autoconf build-essential ca-certificates clang cmake cpio curl execstack file git \
-    libasound2-dev libcups2-dev libdwarf-dev libelf-dev libexpat1-dev libffi-dev libfontconfig libfontconfig1-dev \
-    libfreetype6-dev libnuma-dev libssl-dev libx11-dev libxext-dev libxrandr-dev libxrender-dev libxt-dev libxtst-dev \
-    llvm-dev lld make nasm pkg-config python3 python3-dev rsync systemtap-sdt-dev unzip wget xvfb zip zlib1g-dev unzip \
-  && rm -rf /var/lib/apt/lists/*
+ && apt -qq upgrade -y \
+ && apt -qq install -y --no-install-recommends \
+      ant ant-contrib autoconf build-essential ca-certificates cmake cpio curl file gcc-14 g++-14 gdb git \
+      libasound2-dev libcups2-dev libdwarf-dev libelf-dev libexpat1-dev libffi-dev libfontconfig libfontconfig1-dev \
+      libfreetype6-dev libnuma-dev libssl-dev libx11-dev libxext-dev libxrandr-dev libxrender-dev libxt-dev libxtst-dev \
+      make nasm pkg-config python3 python3-dev rsync systemtap-sdt-dev unzip wget xvfb zip zlib1g-dev execstack unzip \
+ && rm -rf /var/lib/apt/lists/*
 
 WORKDIR /build
 RUN mkdir /build/bootjdk /build/dist \
-  && wget --progress=dot:mega -O jdk21.tar.gz \
-  https://api.adoptopenjdk.net/v3/binary/latest/21/ga/linux/x64/jdk/openj9/normal/adoptopenjdk \
-  && tar -xzf jdk21.tar.gz --directory=/build/bootjdk --strip-components=1 \
-  && rm -f jdk21.tar.gz
+ && wget --progress=dot:mega -O jdk21.tar.gz \
+      https://api.adoptopenjdk.net/v3/binary/latest/21/ga/linux/x64/jdk/openj9/normal/adoptopenjdk \
+ && tar -xzf jdk21.tar.gz --directory=/build/bootjdk --strip-components=1 \
+ && rm -f jdk21.tar.gz
 
-RUN find /build/bootjdk -name '*.so' -type f -print0 | xargs -0 -- execstack -c
+RUN wget --progress=dot:mega -O jtreg.zip https://builds.shipilev.net/jtreg/jtreg-7.5.1%2B1.zip \ 
+     && unzip jtreg.zip -d /build \
+     && rm -rf jtreg.zip
+
+ENV JT_HOME=/build/jtreg
+
+RUN find /build/bootjdk -name '*.so' | xargs execstack -c
 
 RUN git clone --single-branch --depth 1 \
-  https://github.com/ibmruntimes/openj9-openjdk-jdk21.git \
-  /build/src
+      https://github.com/ibmruntimes/openj9-openjdk-jdk21.git \
+      /build/src
 
 WORKDIR /build/src
 RUN bash get_source.sh
 
-ENV CC=/usr/bin/clang CXX=/usr/bin/clang++ LD=/usr/bin/lld
-  # TODO: add as args to configure
-  # CFLAGS="-O3 -flto -fwhole-program-vtables" \
-  # LDFLAGS="-Wl,-O1"
-ENV CFLAGS="-Wno-error=nontrivial-memcall"
 RUN bash configure \
-  --with-boot-jdk=/build/bootjdk \
-  --with-openssl=system \
-  --with-toolchain-type=clang \
-  --enable-jvm-feature-link-time-opt \
-  --with-extra-cflags="$CFLAGS" \
-  --with-extra-cxxflags="$CFLAGS"
+     --enable-libffi-bundling --enable-ddr --enable-jitserver \
+     --enable-fallback-linker --with-jtreg=/build/jtreg --with-boot-jdk=/build/bootjdk \
+     --with-openssl=system --with-extra-ldflags="-Wl,-z,noexecstack"
+
 RUN make all JOBS=$(nproc)
+RUN make install
 
 # jlink by advice from https://adoptium.net/blog/2021/10/jlink-to-produce-own-runtime/
 WORKDIR /build/src/build/linux-x86_64-server-release/images
 RUN jdk/bin/jlink --strip-debug --no-man-pages --no-header-files --compress=2 \
-  --output jre \
-  --add-modules java.base,java.compiler,java.datatransfer,java.desktop,java.instrument,java.logging,\
+    --output jre \
+    --add-modules java.base,java.compiler,java.datatransfer,java.desktop,java.instrument,java.logging,\
 java.management,java.management.rmi,java.naming,java.net.http,java.prefs,java.rmi,java.scripting,java.se,\
 java.security.jgss,java.security.sasl,java.smartcardio,java.sql,java.sql.rowset,java.transaction.xa,\
 java.xml,java.xml.crypto,jdk.accessibility,jdk.charsets,jdk.crypto.cryptoki,jdk.crypto.ec,jdk.dynalink,\
@@ -54,9 +54,37 @@ jdk.nio.mapmode,jdk.random,jdk.sctp,jdk.security.auth,jdk.security.jgss,jdk.unsu
 jdk.xml.dom,jdk.zipfs,openj9.criu,openj9.cuda,openj9.dataaccess,openj9.gpu,openj9.jvm,\
 openj9.sharedclasses,openj9.zosconditionhandling
 
+
+
+ENV JAVA_HOME=/build/src/build/linux-x86_64-server-release/images/jre
+ENV PATH="$JAVA_HOME/bin:$JAVA_HOME/lib:$PATH"
+ENV TEST_JDK_HOME=/build/src/build/linux-x86_64-server-release/images/jdk
+ENV TEST_ROOT=/build/src/openj9/test
+ENV DIAGNOSTICLEVEL=nodetails
+ENV NATIVE_TEST_LIBS=/build/src/build/linux-x86_64-server-release/images/test
+
+RUN cd /build/src/openj9/test \
+     && git clone https://github.com/adoptium/TKG.git
+
+WORKDIR /build/src/openj9/test/TKG
+
+ENV BUILD_LIST=functional
+
+RUN find ../ -type f -name "playlist.xml" | xargs sed -i 's#<testCaseName>jit_jar</testCaseName>#<testCaseName>jit_jar</testCaseName><disables><disable><comment>https://github.com/</comment></disable></disables>#g' 
+RUN find ../ -type f -name "playlist.xml" | xargs sed -i 's#<testCaseName>testJITServer</testCaseName>#<testCaseName>testJITServer</testCaseName><disables><disable><comment>https://github.com/</comment></disable></disables>#g' 
+
+RUN make compile -j$(nproc)
+
+RUN make genParallelList PARALLEL_OPTIONS=TEST=_sanity.functional.regular TEST_TIME= NUM_MACHINES=$(nproc)
+
+RUN cat parallelList.mk
+
+RUN make -f parallelList.mk JOBS=$(nproc)
+
 WORKDIR /build/src/build/linux-x86_64-server-release/images
 RUN mv ./* /build/dist/
 
+
 # ------
 
 FROM ubuntu:25.04 AS run