Hey there! We've found the following might help you get unblocked faster:

• 🧵 can't get railway.json - RAILPACK - deploy - aptPackages working

• 🧵 Service Environment Variables Not Accessible in Runtime (Next.js, Nixpacks)

• 📚 Build Configuration

If you find the answer from one of these, please let us know by solving the thread!

keep using the railpack as ur builder , and create a file name it railpack.json in the root of your repository with this content:

{
  "$schema": "https://schema.railpack.com/",
  "steps": {
    "build": {
      "commands": [
        "unset JAVA_HOME && ./mvnw -DoutputFile=target/mvn-dependency-list.log -B -DskipTests clean dependency:list install -Pproduction"
      ]
    }
  }
}

this unsets the broken JAVA_HOMEthat railpack sets, allowing ./mvnw to fall back to the java that is already on the PATH (provided by Railpack itself). ur original command (including the dependency list log and production profile) is preserved exactly, push this file and deployu

lmk if it works for u

Now I get a different error:

unset JAVA_HOME && ./mvnw -DoutputFile=target/mvn-dependency-list.log -B -DskipTests clean dependency:list install -Pproduction

115ms

sh: 1: ./mvnw: Permission denied

ERROR: failed to build: failed to solve: process "sh -c unset JAVA_HOME && ./mvnw -DoutputFile=target/mvn-dependency-list.log -B -DskipTests clean dependency:list install -Pproduction" did not complete successfully: exit code: 126

I updated the railpack.json to:

{ "$schema": "https://schema.railpack.com/", "steps": { "build": { "commands": [ "chmod +x mvnw .mvn/wrapper/maven-wrapper.jar", "unset JAVA_HOME && ./mvnw -DoutputFile=target/mvn-dependency-list.log -B -DskipTests clean dependency:list install -Pproduction" ] } } }

Now I get this error:

unset JAVA_HOME && ./mvnw -DoutputFile=target/mvn-dependency-list.log -B -DskipTests clean dependency:list install -Pproduction

226ms

We cannot execute /usr/local/bin/java

copy /usr/local/bin/mise

98ms

ERROR: failed to build: failed to solve: process "sh -c unset JAVA_HOME && ./mvnw -DoutputFile=target/mvn-dependency-list.log -B -DskipTests clean dependency:list install -Pproduction" did not complete successfully: exit code: 1

yess i see the problem is mise reactivating between the two commands and resetting the bad JAVA_HOME again , that's why it worked for a second then reverted , to fix this put everything in one single command so nothing can interfere

{
  "$schema": "https://schema.railpack.com/",
  "steps": {
    "build": {
      "commands": [
        "chmod +x ./mvnw && unset JAVA_HOME && ./mvnw -DoutputFile=target/mvn-dependency-list.log -B -DskipTests clean dependency:list install -Pproduction"
      ]
    }
  }
}

also run git update-index --chmod=+x mvnw && git commit -m "fix: make mvnw executable" mvnw locally once so you never need the chmod again

lmk the result

did it work for you ?

Sorry I used a Dockerfile for now, I will start using Railpack again once Railway fixes their issues