Hi,
I'm creating a Groovy/JavaFX app which invokes an ant build script from a 3rd
party software product installed on the same host. My app (Griffon) has a
runtime dependency of slf4j-log4j12-1.7.10. I've also added ant-1.9.4 as a
compile dependency.
The ant build file imports other build scripts (from the 3rd party "scripts"
folder) which import others and eventually the necessary taskdef and classpath
refs are created - this classpath uses an older slf4j implantation containing:
jcl-over-slf4j-1.5.2.jar, slf4j-log4j12-1.5.2.jar, slf4j-api-1.5.2.jar
At runtime when I execute the target I'm seeing the following error and the ant
task did not complete:
def antProject = new Project()
antProject.init()
ProjectHelper.configureProject(antProject, buildFile)
antProject.executeTarget('export')
Caused by: java.lang.NoSuchMethodError:
org.slf4j.spi.LocationAwareLogger.log(Lorg/slf4j/Marker;Ljava/lang/String;ILjava/lang/String;Ljava/lang/Throwable;)V
at
org.apache.commons.logging.impl.SLF4JLocationAwareLog.warn(SLF4JLocationAwareLog.java:173)
at org.apache.axis2.util.Loader.getResourceAsStream(Loader.java:140)
at
org.apache.axis2.deployment.FileSystemConfigurator.getAxisConfiguration(FileSystemConfigurator.java:113)
at
org.apache.axis2.context.ConfigurationContextFactory.createConfigurationContext(ConfigurationContextFactory.java:68)
at
org.apache.axis2.context.ConfigurationContextFactory.createConfigurationContextFromFileSystem(ConfigurationContextFactory.java:184)
at
org.apache.axis2.client.ServiceClient.configureServiceClient(ServiceClient.java:150)
at org.apache.axis2.client.ServiceClient.<init>(ServiceClient.java:143)
at org.apache.axis2.client.ServiceClient.<init>(ServiceClient.java:244)
at
org.apache.axis2.rpc.client.RPCServiceClient.<init>(RPCServiceClient.java:48)
at
com.tibco.amf.admin.api.servicefactory.remote.axis2.Axis2ProxyServiceFactory$Axis2ServiceInvocation.<init>(Axis2ProxyServiceFactory.java:185)
at
com.tibco.amf.admin.api.servicefactory.remote.axis2.Axis2ProxyServiceFactory.createService(Axis2ProxyServiceFactory.java:168)
at
com.tibco.amf.admin.api.servicefactory.remote.RemoteServicesRegistry.getRemoteServiceInstance(RemoteServicesRegistry.java:112)
at
com.tibco.amf.admin.cmdline.ServiceFactory.createService(ServiceFactory.java:196)
at
com.tibco.amf.admin.cmdline.CLIRegistry.getService(CLIRegistry.java:181)
at com.tibco.amf.admin.cmdline.Processor.process(Processor.java:104)
at
com.tibco.amf.admin.cmdline.Processor.processChildren(Processor.java:39)
at
com.tibco.amf.admin.cmdline.ant.AMXAdminTask.process(AMXAdminTask.java:362)
at
com.tibco.amf.admin.cmdline.ant.AMXAdminTask.execute(AMXAdminTask.java:280)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:292)
at sun.reflect.GeneratedMethodAccessor26.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at
org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
... 35 more
[2015-05-07 14:46:39,063] [JavaFX Application Thread] INFO
griffon.javafx.JavaFXGriffonApplication - Shutdown is in process
My build.gradle
...
dependencies {
griffon 'org.codehaus.griffon.plugins:griffon-miglayout-plugin:1.1.1'
compile "org.codehaus.griffon:griffon-guice:${griffon.version}"
//compile 'org.apache.ant:ant:1.9.4'
compile('org.apache.ant:ant-apache-log4j:1.9.4') {
exclude group: 'log4j', module: 'log4j'
}
runtime('log4j:log4j:1.2.17') {
exclude group: 'ant', module: 'ant-nodeps'
exclude group: 'ant', module: 'ant-junit'
exclude group: 'ant-contrib', module: 'ant-contrib'
}
runtime 'org.slf4j:slf4j-log4j12:1.7.10'
//runtime 'org.slf4j:slf4j-jcl:1.7.10'
//runtime 'org.slf4j:jcl-over-slf4j:1.7.10'
runtime 'commons-logging:commons-logging:1.1.1'
runtime 'org.apache.ant:ant-commons-logging:1.9.4'
testCompile 'org.spockframework:spock-core:0.7-groovy-2.0'
testCompile 'com.jayway.awaitility:awaitility-groovy:1.6.3'
}
...
My interpretation of this exception is:
1. SLF4JLocationAwareLog has been loaded from slf4j<1.6 (i.e.
jcl-over-slf4j-1.5.2.jar)
2. LocationAwareLogger has been loaded from slf4j>=1.6 (i.e.
slf4j-api-1.7.10.jar)
3. I understand that slf4j isn't binary compatible between 1.5 and 1.6 -
and doesn't like >1 binding on the classapath
What I don't understand is if my Griffon/Gradle build project contains {
runtime 'org.slf4j:slf4j-log4j12:1.7.10' } this means I've fulfilled slf4j's
requirement by providing the slf4j api and log4j12 binding.
So ant's taskdef classpath contains the 1.5.2 API - but I can't change these
scripts
For some reason slf4j picks jcl-over-slf4j-1.5.2 (the other choice being
slf4j-log4j12-1.5.2) even though a binding has already been
defined/loaded/used.
In the interim I can "make the error go away" by:
a) Comment out runtime 'org.slf4j:slf4j-log4j12:1.7.10' - meaning no
logging / noop?
b) Comment in runtime 'org.slf4j:jcl-over-slf4j:1.7.10' - (I don't really
want JCL)
I'm running out of ideas- do I need to dig into the ant code & try and change
the classpath (remove 1.7.10?) I don't know if that would work if classes from
1.7.10 have already been loaded - I'm hoping there's a really simple solution
I've just happened to overlook (like executing ant in a new process with a new
classloader) but if anyone has a suggestion it would be appreciated.
Cheers,
Paul
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