Maven compilation dies with "Killed"

I am running a Maven2 compile of a large Java project on a linux virtual machine

Compilation is failing with the following error "compiled with -X for debugging"

[DEBUG] Source roots:

[DEBUG] /home/{...}/src/main/java

[DEBUG] /home/{...}/target/generated-sourc开发者_JS百科es/meta

[INFO] Compiling 1377 source files to /home/{...}

Killed

(and I go back to bash prompt immediately)

I figure this could be:

• A linux thing (I checked that my ulimit -Hn is okay, 10000)
• A VM thing (this in on an amazon EC2 ubuntu instance)
• A maven / java thing (Never seen this kind of death, usually just out of memory errors and the like)

Any thoughts to narrow down the culprit?

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My first guess would be that you're running out of memory, and the kernel is killing the compile process.

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I would start by looking to see if there are other resource limits; e.g. run ulimit -a.