diff --git a/entrypoint.sh b/entrypoint.sh
index 1e17540..0c3472a 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -141,7 +141,12 @@ function compile_args() {
 function compile_flags() {
   echo ":: Compiling java flags"
   if [ "${MCSD_JAVA_CUSTOM}" == "true" ]; then
-    export "JAVA_HOME=/jvm"
+    if [ -f "/jvm/bin/java" ]; then
+      export "JAVA_HOME=/jvm"
+    else
+      echo ":: Error: /jvm/bin/java not found, using built-in JVM"
+      export "JAVA_HOME=/usr/lib/jvm/java-${MCSD_JAVA_VERSION}-openjdk"
+    fi
   else
     export "JAVA_HOME=/usr/lib/jvm/java-${MCSD_JAVA_VERSION}-openjdk"
   fi