Error when setting up keycloak using source code

1

I have been trying to setup keycloak using source code. My configuration is Java 21 LTS(Coretto) and ran the following commands to setup as specified in the contributing guide.

./mvnw -pl quarkus/deployment,quarkus/dist -am -DskipTests clean install
java -jar server/target/lib/quarkus-run.jar start-dev --verbose

While running the java command I get this following error.

ERROR: Unexpected error when starting the server in (development) mode
Error details:
java.lang.RuntimeException: Failed to start quarkus
        at io.quarkus.runner.ApplicationImpl.<clinit>(Unknown Source)
        at java.base/jdk.internal.misc.Unsafe.ensureClassInitialized0(Native Method)
        at java.base/jdk.internal.misc.Unsafe.ensureClassInitialized(Unsafe.java:1160)
        at java.base/jdk.internal.reflect.MethodHandleAccessorFactory.ensureClassInitialized(MethodHandleAccessorFactory.java:340)
        at java.base/jdk.internal.reflect.MethodHandleAccessorFactory.newConstructorAccessor(MethodHandleAccessorFactory.java:103)
        at java.base/jdk.internal.reflect.ReflectionFactory.newConstructorAccessor(ReflectionFactory.java:173)
        at java.base/java.lang.reflect.Constructor.acquireConstructorAccessor(Constructor.java:549)
        at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499)
        at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:486)
        at io.quarkus.runtime.Quarkus.run(Quarkus.java:70)
        at org.keycloak.quarkus.runtime.KeycloakMain.start(KeycloakMain.java:146)
        at org.keycloak.quarkus.runtime.cli.command.AbstractStartCommand.run(AbstractStartCommand.java:57)
        at picocli.CommandLine.executeUserObject(CommandLine.java:2030)
        at picocli.CommandLine.access$1500(CommandLine.java:148)
        at picocli.CommandLine$RunLast.executeUserObjectOfLastSubcommandWithSameParent(CommandLine.java:2465)
        at picocli.CommandLine$RunLast.handle(CommandLine.java:2457)
        at picocli.CommandLine$RunLast.handle(CommandLine.java:2419)
        at picocli.CommandLine$AbstractParseResultHandler.execute(CommandLine.java:2277)
        at picocli.CommandLine$RunLast.execute(CommandLine.java:2421)
        at picocli.CommandLine.execute(CommandLine.java:2174)
        at org.keycloak.quarkus.runtime.cli.Picocli.run(Picocli.java:147)
        at org.keycloak.quarkus.runtime.cli.Picocli.parseAndRun(Picocli.java:135)
        at org.keycloak.quarkus.runtime.KeycloakMain.main(KeycloakMain.java:106)
        at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
        at java.base/java.lang.reflect.Method.invoke(Method.java:580)
        at io.quarkus.bootstrap.runner.QuarkusEntryPoint.doRun(QuarkusEntryPoint.java:62)
        at io.quarkus.bootstrap.runner.QuarkusEntryPoint.main(QuarkusEntryPoint.java:33)
Caused by: java.lang.NoClassDefFoundError: oracle/sql/CharacterSet
        at io.quarkus.jdbc.oracle.runtime.OracleInitRecorder.setupCharSets(OracleInitRecorder.java:21)
        at io.quarkus.deployment.steps.ExtendedCharactersSupport$preinitializeCharacterSets1608602642.deploy_0(Unknown Source)
        at io.quarkus.deployment.steps.ExtendedCharactersSupport$preinitializeCharacterSets1608602642.deploy(Unknown Source)
        ... 27 more
Caused by: java.lang.ClassNotFoundException: oracle.sql.CharacterSet
        at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641)
        at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)
        at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:525)
        at io.quarkus.bootstrap.runner.RunnerClassLoader.loadClass(RunnerClassLoader.java:114)
        at io.quarkus.bootstrap.runner.RunnerClassLoader.loadClass(RunnerClassLoader.java:72)
        ... 30 more
2

Update: it worked fine for keycloak tag version 25.0.6 but it did not work in latest main branch (f1a7a48). Can someone help me debug that?

3

main is not a release branch, it‘s the integration branch of all PRs. It should not happen that it doesn‘t start, but it actually might happen.

4

I am on release/26.0, and ran same commands OP mentioned.

I also see exact same error. Any idea how to fix it?