Nuclos IDE errors: ajc, org.nuclos.schema, mvn clean, spring-instrument, AspectJ, NullPointerException, Autowired, VM arguments.

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open book Problems and error messages with the IDE

Troubleshooting for Nuclos development – fix compiler, server, client and runtime errors.

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Common errors during Nuclos development in the IDE and how to fix them.

When compiling

ErrorFix
ajc: The import org.nuclos.schema.* cannot be resolvednuclos-schema → Maven → Generate Sources and Update Folders.
ajc: * cannot be resolved to a typenuclos → Maven → Reimport.

When starting the server

BeanCreationException … A universal match pattern ('/**') is defined before other patterns …: run mvn clean in the terminal.

For mvn clean to take effect, the war must be listed as a module in the pom.xml. This is given for the Nuclos core; for extension projects you may need to add it.

When starting the client

Error creating bean 'internalAspectJWeavingEnabler' … (form freezes after login): place the spring-instrument-*.jar somewhere and reference it in the client configuration under VM arguments.

Runtime

Unexpected NullPointerException (e.g. on @Autowired fields): Nuclos needs the AspectJ compiler. Make sure Ajc is active in the Maven import.

Related pages

gear Tutorial: integrating Nuclos into IntelliJ IDEA

IntelliJ.

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