[rules-dev] Tips for building - tip 1: run "mvn dependency:tree" on the modules you lead
Mark Proctor
mproctor at codehaus.org
Wed May 11 23:54:39 EDT 2011
On 11/05/2011 15:22, Michael Anstis wrote:
> *> Incident* 3: Wierd that drools-compiler would need jetty to test
> something?
>
> If I am not mistaken jetty is used for some of the KnowledgeAgent tests.
>
> *> Incident* 4: Wierd that drools-compiler would need a swing
> framework to test something?
>
> I know Mark did some work integrating glazed-lists with live queries,
> or something around that area a while ago...
yes to both.
Mark
>
> On 11 May 2011 14:37, Geoffrey De Smet <ge0ffrey.spam at gmail.com
> <mailto:ge0ffrey.spam at gmail.com>> wrote:
>
> Hi guys,
>
> We should actively notify/teach each other about tips and tricks.
> There's a lot we can learn from each other.
> I'll start with a build tip:
>
>
> The problem
> ========
> - How bloated is the dependency tree of my module? This affects
> the download zip size, but also the minimal jars needed to run.
> - Are there dead dependency left in my module?
>
> The solution
> ========
> - First thing to understand is that it has to reviewed module by
> module
> (focus on end-user modules such as drools-compiler,
> drools-camel-server, guvnor-webapp, ...).
> - Use the command *mvn dependency:tree*
>
> Example
> =====
>
> Here's the output on drools-compiler.
> I've annotated a couple of possible incidents which might or might
> not be a problem.
> It's hard to tell without someone with extensive drools-compiler
> experience looking further into it.
>
> drools-compiler [master] $ mvn dependency:tree
> [INFO] Scanning for projects...
> [INFO]
> [INFO]
> ------------------------------------------------------------------------
> [INFO] Building Drools :: Compiler 5.3.0-SNAPSHOT
> [INFO]
> ------------------------------------------------------------------------
> [INFO]
> [INFO] --- maven-dependency-plugin:2.2:tree (default-cli) @
> drools-compiler ---
> [INFO] org.drools:drools-compiler:jar:5.3.0-SNAPSHOT
> [INFO] +- org.drools:drools-core:jar:5.3.0-SNAPSHOT:compile
> [INFO] | \- org.drools:knowledge-api:jar:5.3.0-SNAPSHOT:compile
> [INFO] +- org.drools:drools-core:test-jar:tests:5.3.0-SNAPSHOT:test
> [INFO] +- org.apache.felix:org.osgi.core:jar:1.4.0:provided
> [INFO] +- org.apache.felix:org.osgi.compendium:jar:1.4.0:provided
> [INFO] +- org.antlr:*antlr-runtime:jar:3.3*:compile
> [INFO] +- org.antlr:*antlr:jar:3.3*:compile
> *Incident* 1: maybe org.antlr:antlr-runtime:jar:3.3 is a subset of
> org.antlr:antlr-runtime:jar:3.3 ? (antlr is wierd IIRC - so this
> is probably not in this case)
> [INFO] +- org.antlr:stringtemplate:jar:3.2.1:compile
> [INFO] +- antlr:*antlr:jar:2.7.7*:compile
> *Incident* 2: maybe antlr:antlr:jar:2.7.7 is a subset of
> org.antlr:antlr-runtime:jar:3.3 ? (antlr is wierd IIRC - so this
> is probably not in this case)
> In general, dependencies with a non-namespaced groupId need to
> be upgraded if possible.
> [INFO] +- org.antlr:gunit:jar:3.3:test
> [INFO] +- org.eclipse.jdt.core.compiler:ecj:jar:3.5.1:compile
> [INFO] +- janino:janino:jar:2.5.15:compile
> Note that janino is optional (output doesn't show that :( ) -
> no problem here
> [INFO] +- org.mvel:mvel2:jar:2.1-SNAPSHOT:compile
> [INFO] +- com.thoughtworks.xstream:xstream:jar:1.3.1:test
> [INFO] | \- xpp3:xpp3_min:jar:1.1.4c:test
> [INFO] +- org.mortbay.*jetty*:jetty-embedded:jar:6.1.15:test
> *Incident* 3: Wierd that drools-compiler would need jetty to test
> something?
> [INFO] | +- org.mortbay.jetty:jetty:jar:6.1.15:test
> [INFO] | | +- org.mortbay.jetty:jetty-util:jar:6.1.15:test
> [INFO] | | \- org.mortbay.jetty:servlet-api:jar:2.5-20081211:test
> [INFO] | \- javax.servlet.jsp:jsp-api:jar:2.1:test
> [INFO] +- org.opensymphony.quartz:quartz:jar:1.6.1:test
> [INFO] +- com.sun.xml.bind:jaxb-xjc:jar:2.2.1.1:provided
> [INFO] +- com.sun.xml.bind:jaxb-impl:jar:2.2.1.1:provided
> [INFO] +- javax.xml.bind:jaxb-api:jar:2.2.1:provided
> [INFO] +- javax.xml.stream:stax-api:jar:1.0-2:provided
> [INFO] +- javax.activation:activation:jar:1.1:provided
> [INFO] +- net.java.dev.*glazedlists*:glazedlists_java15:jar:1.8.0:test
> *Incident* 4: Wierd that drools-compiler would need a swing
> framework to test something?
> [INFO] +- junit:junit:jar:4.8.1:test
> [INFO] \- org.mockito:mockito-all:jar:1.8.2:test
> [INFO]
> ------------------------------------------------------------------------
> [INFO] BUILD SUCCESS
> [INFO]
> ------------------------------------------------------------------------
>
> [INFO] Total time: 1.951s
> [INFO] Finished at: Wed May 11 15:09:09 CEST 2011
> [INFO] Final Memory: 10M/309M
> [INFO]
> ------------------------------------------------------------------------
>
> Here's another example showing another type of incident:
>
> drools-camel-server [master] $ mvn dependency:tree
> ...
> [INFO] +- org.drools:drools-grid-impl:jar:5.3.0-SNAPSHOT:compile
> [INFO] | +- org.apache.mina:mina-core:jar:2.0.1:compile (version
> managed from 2.0.0-M6)
> [INFO] | \- com.hazelcast:hazelcast:jar:1.8.5:compile
> ...
> [INFO] +- org.apache.camel:camel-cxf:jar:2.4.0:compile
> [INFO] | \- org.apache.cxf:*cxf-rt-frontend-jaxrs*:jar:2.2.9:compile
> [INFO] | +- org.apache.cxf:cxf-common-utilities:jar:2.2.9:compile
> [INFO] | +-
> org.apache.cxf:cxf-rt-transports-http:jar:2.2.9:compile
> [INFO] | +-
> org.apache.cxf:cxf-rt-databinding-aegis:jar:2.2.9:compile
> [INFO] | +- jaxen:jaxen:jar:1.1.1:compile
> [INFO] | \- org.apache.xmlbeans:xmlbeans:jar:2.4.0:compile
> ...
> [INFO] +- org.apache.cxf:*cxf-bundle-jaxrs*:jar:2.2.9:compile
> *Incident* A: This cxf-bundle-jaxrs is an uber jar. */Uber jars
> (as dependencies) are evil./*
> An uber jar extracts the classes from other jars and zips
> them (=aggregate) in itself.
> This effectively kills maven's ability to only have 1 class
> of something in your classpath.
> It turns your classpath into box of chocolates: /you never
> know what version of class file you'll get/.
> Also, it bloats the classpath with things you don't need
> (like jetty in this case)
> and those cause havoc if you deploy it to some app servers.
> [INFO] | +- aopalliance:aopalliance:jar:1.0:compile
> [INFO] | +-
> org.apache.geronimo.specs:geronimo-annotation_1.0_spec:jar:1.1.1:compile
> [INFO] | +-
> org.apache.geronimo.specs:geronimo-stax-api_1.0_spec:jar:1.0.1:compile
> [INFO] | +- wsdl4j:wsdl4j:jar:1.6.2:compile
> [INFO] | +- org.apache.ws.commons.schema:XmlSchema:jar:1.4.5:compile
> [INFO] | +- commons-lang:commons-lang:jar:2.4:compile
> [INFO] | +-
> org.apache.geronimo.specs:geronimo-activation_1.1_spec:jar:1.0.2:compile
> [INFO] | +- org.codehaus.woodstox:wstx-asl:jar:3.2.9:compile
> [INFO] | +- org.apache.neethi:neethi:jar:2.0.4:compile
> [INFO] | +-
> org.apache.geronimo.specs:geronimo-javamail_1.4_spec:jar:1.6:compile
> [INFO] | +- org.springframework:spring-web:jar:2.5.6:compile
> [INFO] | +- org.mortbay.jetty:*jetty*:jar:6.1.21:compile
> [INFO] | +- org.mortbay.jetty:jetty-util:jar:6.1.21:compile
> [INFO] | +- javax.ws.rs:jsr311-api:jar:1.0:compile
> [INFO] | +- org.apache.abdera:abdera-core:jar:1.0:compile
> [INFO] | +- org.apache.abdera:abdera-i18n:jar:1.0:compile
> [INFO] | +- commons-codec:commons-codec:jar:1.3:compile
> [INFO] | +- org.apache.abdera:abdera-parser:jar:1.0:compile
> [INFO] | +- org.apache.ws.commons.axiom:axiom-impl:jar:1.2.7:compile
> [INFO] | +- org.apache.ws.commons.axiom:axiom-api:jar:1.2.7:compile
> [INFO] | +- org.apache.abdera:abdera-extensions-json:jar:1.0:compile
> [INFO] | \- org.apache.abdera:abdera-extensions-main:jar:1.0:compile
> ...
>
> Also, if you're trying to solve such things on master, try
> upgrading the dependencies first (not on a release branch -
> upgrading is risky!):
> many issues in the poms tend to be identified and fixed in newer
> versions.
>
> --
> With kind regards,
> Geoffrey De Smet
>
>
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