NPE when executing queries on Studio #730
Description
ArcadeDB Version: v22.12.1
JDK Version: openjdk version "11.0.12" 2021-07-20 LTS
OpenJDK Runtime Environment Corretto-11.0.12.7.1 (build 11.0.12+7-LTS)
OpenJDK 64-Bit Server VM Corretto-11.0.12.7.1 (build 11.0.12+7-LTS, mixed mode)
OS: CentOS release 6.9 (Final)
Expected behavior
Queries on Studio are executed correctly, as in previous versions
Actual behavior
submitting a query on Studio results in an "Internal error" message being displayed.
The arcadedb.log file shows Error on command execution (PostCommandHandler) java.lang.NullPointerException at com.arcadedb.server.http.handler.PostCommandHandler.execute(PostCommandHandler.java:55)
Steps to reproduce
- create a class that creates a database using the DatabaseFactory, creates a type with a property and starts the ArcadeDB server in embedded mode
- open Studio
- execute a select on the type
- verify that the server responds with a 500 error to the http://[host]:[port]/api/v1/command/[db_name] request
- inspect the arcadedb.log0 file:
The attached screenshot shows what I see in the browser.
Below are the relevant log messages:
2023-01-01 11:46:34.046 INFO [ArcadeDBServer] <ArcadeDB_0> ArcadeDB Server v22.12.1 (build 08eb71f7264ba1eacd872632dcd2162765ddb67e/1671833658668/main) is starting up... 2023-01-01 11:46:34.047 INFO [ArcadeDBServer] <ArcadeDB_0> Starting ArcadeDB Server with plugins [Orchestrator] ... 2023-01-01 11:46:34.092 INFO [ServerSecurity] <ArcadeDB_0> Creating root user with the provided password 2023-01-01 11:46:34.227 INFO [ArcadeDBServer] <ArcadeDB_0> - Orchestrator plugin started 2023-01-01 11:46:34.228 INFO [HttpServer] <ArcadeDB_0> - Starting HTTP Server (host=0.0.0.0 port=8080)... 2023-01-01 11:46:34.256 INFO [undertow] starting server: Undertow - 2.3.2.Final 2023-01-01 11:46:34.263 INFO [xnio] XNIO version 3.8.8.Final 2023-01-01 11:46:34.270 INFO [nio] XNIO NIO Implementation Version 3.8.8.Final 2023-01-01 11:46:34.371 INFO [threads] JBoss Threads version 3.5.0.Final 2023-01-01 11:46:34.417 INFO [HttpServer] <ArcadeDB_0> - HTTP Server started (host=0.0.0.0 port=8080) 2023-01-01 11:46:34.424 INFO [ArcadeDBServer] <ArcadeDB_0> Available query languages: [java, js, sql] 2023-01-01 11:46:34.425 INFO [ArcadeDBServer] <ArcadeDB_0> ArcadeDB Server started (CPUs=2 MAXRAM=351.88MB) 2023-01-01 11:46:34.425 INFO [ArcadeDBServer] <ArcadeDB_0> Studio web tool available at http://localhost:8080 <ArcadeDB_0> Error on command execution (PostCommandHandler) java.lang.NullPointerException at com.arcadedb.server.http.handler.PostCommandHandler.execute(PostCommandHandler.java:55) at com.arcadedb.server.http.handler.DatabaseAbstractHandler.execute(DatabaseAbstractHandler.java:85) at com.arcadedb.server.http.handler.AbstractHandler.handleRequest(AbstractHandler.java:110) at io.undertow.server.RoutingHandler.handleRequest(RoutingHandler.java:93) at io.undertow.server.handlers.PathHandler.handleRequest(PathHandler.java:104) at io.undertow.server.Connectors.executeRootHandler(Connectors.java:393) at io.undertow.server.protocol.http.HttpReadListener.handleEventWithNoRunningRequest(HttpReadListener.java:256) at io.undertow.server.protocol.http.HttpReadListener.handleEvent(HttpReadListener.java:136) at io.undertow.server.protocol.http.HttpReadListener.handleEvent(HttpReadListener.java:59) at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92) at org.xnio.conduits.ReadReadyHandler$ChannelListenerHandler.readReady(ReadReadyHandler.java:66) at org.xnio.nio.NioSocketConduit.handleReady(NioSocketConduit.java:89) at org.xnio.nio.WorkerThread.run(WorkerThread.java:591)
