Example can't be run from the project itself

[llowinge]

Following https://camel.apache.org/camel-quarkus/latest/first-steps.html

I've modified the pom of the rest-json module as follows:

[14/05/20 13:27:00] ~/R/q/c/e/rest-json ❯❯❯ git diff                                                                                                                                  tags/1.0.0-M7^0 ✭ ✱
diff --git a/examples/rest-json/pom.xml b/examples/rest-json/pom.xml
index 9f7fc4a2..df604fc3 100644
--- a/examples/rest-json/pom.xml
+++ b/examples/rest-json/pom.xml
@@ -20,9 +20,9 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xs
     <parent>
         <groupId>org.apache.camel.quarkus</groupId>
-        <artifactId>camel-quarkus-build-parent</artifactId>
+        <artifactId>camel-quarkus-bom</artifactId>
         <version>1.0.0-M7</version>
-        <relativePath>../../poms/build-parent/pom.xml</relativePath>
+<!--        <relativePath>../../poms/build-parent/pom.xml</relativePath>-->
     </parent>
 
     <modelVersion>4.0.0</modelVersion>

Then i've run dev mode which leads to exception

[14/05/20 13:27:10] ~/R/q/c/e/rest-json ❯❯❯ pwd                                                                                                                                       tags/1.0.0-M7^0 ✭ ✱
/Users/llowinge/Redhat/quarkus/camel-quarkus/examples/rest-json
[14/05/20 13:27:15] ~/R/q/c/e/rest-json ❯❯❯ mvn clean compile quarkus:dev                                                                                                             tags/1.0.0-M7^0 ✭ ✱
[INFO] Scanning for projects...
[WARNING] 
[WARNING] Some problems were encountered while building the effective model for org.apache.camel.quarkus:camel-quarkus-examples-rest-json:jar:1.0.0-M7
[WARNING] 'parent.relativePath' of POM org.apache.camel.quarkus:camel-quarkus-examples-rest-json:1.0.0-M7 (/Users/llowinge/Redhat/quarkus/camel-quarkus/examples/rest-json/pom.xml) points at org.apache.camel.quarkus:camel-quarkus-examples instead of org.apache.camel.quarkus:camel-quarkus-bom, please verify your project structure @ line 21, column 13
[WARNING] 
[WARNING] It is highly recommended to fix these problems because they threaten the stability of your build.
[WARNING] 
[WARNING] For this reason, future Maven versions might no longer support building such malformed projects.
[WARNING] 
[INFO] 
[INFO] -----< org.apache.camel.quarkus:camel-quarkus-examples-rest-json >------
[INFO] Building Camel Quarkus :: Examples :: Rest Json 1.0.0-M7
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] 
[INFO] --- maven-clean-plugin:3.1.0:clean (default-clean) @ camel-quarkus-examples-rest-json ---
[INFO] Deleting /Users/llowinge/Redhat/quarkus/camel-quarkus/examples/rest-json/target
[INFO] 
[INFO] --- maven-enforcer-plugin:1.4.1:enforce (camel-quarkus-enforcer-rules) @ camel-quarkus-examples-rest-json ---
[INFO] 
[INFO] --- maven-remote-resources-plugin:1.5:process (process-resource-bundles) @ camel-quarkus-examples-rest-json ---
[INFO] 
[INFO] --- maven-resources-plugin:3.1.0:resources (default-resources) @ camel-quarkus-examples-rest-json ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 3 resources
[INFO] Copying 3 resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.8.0:compile (default-compile) @ camel-quarkus-examples-rest-json ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 3 source files to /Users/llowinge/Redhat/quarkus/camel-quarkus/examples/rest-json/target/classes
[INFO] 
[INFO] --- quarkus-maven-plugin:1.4.1.Final:dev (default-cli) @ camel-quarkus-examples-rest-json ---
Listening for transport dt_socket at address: 5005
java.lang.NullPointerException
        at sun.nio.fs.UnixPath.normalizeAndCheck(UnixPath.java:77)
        at sun.nio.fs.UnixPath.<init>(UnixPath.java:71)
        at sun.nio.fs.UnixFileSystem.getPath(UnixFileSystem.java:281)
        at java.nio.file.Paths.get(Paths.java:84)
        at io.quarkus.deployment.dev.RuntimeUpdatesProcessor.checkForFileChange(RuntimeUpdatesProcessor.java:315)
        at io.quarkus.deployment.dev.RuntimeUpdatesProcessor.doScan(RuntimeUpdatesProcessor.java:126)
        at org.apache.camel.quarkus.core.devmode.CamelHotReplacementSetup$1.run(CamelHotReplacementSetup.java:36)
        at java.util.TimerThread.mainLoop(Timer.java:555)
        at java.util.TimerThread.run(Timer.java:505)

NOTE: If i copy the module out of camel-quarkus tree, then it works.

[lburgazzoli]

I'm unable to replicate the issue

[llowinge]

Note i was on tag tags/1.0.0-M7^0

[lburgazzoli]

don't fails for me even on M7

[llowinge]

The problem is, that in my case, this line:

Path classesDir = Paths.get(module.getClassesPath()); in module camel-quarkus-support-common has classesPath = null.

[lburgazzoli]

Mind reporting to quarkus ?

[llowinge]

I will report it to the similar issue #828

[ppalaga]

I cannot reproduce with Camel Quarkus tag 1.0.0-CR2. Could you please retry, @llowinge ?

[ppalaga]

@llowinge as noted in #828 this is reproducible when you run an example without replacing camel-quarkus-build-parent with camel-quarkus-bom. So you either need to do that or use -DnoDeps. See also https://camel.apache.org/camel-quarkus/latest/user-guide/first-steps.html Closing as not a bug.