Full ERROR Message Example

InvalidRequest: code=2200 Invalid query message="Could not compile function 'test.f2' from Java source: org.apache.cassandra.exceptions.InvalidRequestException: Java source compilation failed:

Typically followed by the following exception that provides more details about why the error occurred.

GENERATED SOURCE ERROR: line 20 (in generated source): java.net.InetAddress cannot be resolved to a type
GENERATED SOURCE ERROR: line 25 (in generated source): java.net.InetAddress cannot be resolved to a type

What does this error mean?

This error means that the code provided for a User-Defined Function (UDF) could not be compiled and will not be usable within CQL.

Why does this error occur?

The most likely cause for this error is a syntax error in the Java code for the UDF. If there are type mismatches, missing import statements, semi-colons at the end of a statement, or any other error that would cause a compilation failure in Java, they will trigger this error in Cassandra.

How do you fix this error?

Because the error is in the compilation of the code, a review of the code itself is necessary to determine what is causing the compilation error. Use the follow up output to pinpoint the offending lines and make adjustments according to the additional information provided. Look for any syntax errors or missing statements, packages, etc. related to those lines. Ideally, you should do this in an IDE and run tests to make sure the code compiles and generates the results that you expect.