In Lucee, I am loading a jar file from a path that is defined in Application.cfc (this.javaSettings.loadPaths = ['../build/lib'];)... but that jar file has a dependency (also in the ..build/lib directory) that is a higher version of what's bundled w/Lucee. (Specifically, hslqdb 1.8 is bundled with Lucee and the jar I'm loading requires hsqldb 2.4.1.) I end up getting an error due to the one bundled with Lucee getting referenced, I believe. I'm trying to understand if going the OSGi route helps this scenario since I wouldn't be loading the jar directly - it's referenced by the jar I am loading. Or should I explore JavaLoader?

Javaloader will likely work even though I hate to use it. It's not been maintained in like 10 years.

you can add an array of paths to jars to createObject() in lucee, it might work for your scenario. createObject( "java", "class", ['/path/to/your.jar', '/another/path/to/yourother.jar' ])

@Matt Jones That's what he's doing now

i pass the dependencies as jars explicitly

Just because you load it there, doesn't always mean it will be the version that gets found first by whatever classloader the lib is using

@bdw429s Would Lucee break if 1.8 was just replaced with 2.4.1?

@risto You don't really have the option to update Lucee's internal H2 version. Lucee loads it as an OSGI bundle via • bundle name • bundle version which is specifically designed to prevent against the ability to just "grab whatever is floating around the classpath" 🙂

Good to know. I figured it wasn't that easy.

i can confirm it just re-downloads 1.8 - that was one of the first things i tried

@John Liljegren Another thing you can try is providing the list of jars to the

createObject()

call. In my experience, that will ONLY work for the initial instantiation of those classes however. I've found that once I created a class and then tried to call a method on that class inside my normal CFML code, it would go back to the default classsloader.

yeah that didn't seem to make any difference

Can you share the error message and full stack trace that you get?

i am going to try going the OSGi route, which I wish was easier to do (meaning i wish the libraries were already OSGified)

TBH, the "OSGI route" only really works if you control the code in this library and you intend to have it request the classes it needs from an OSGI framework

Here is the message: "org.hsqldb.DatabaseURL.parseURL(Ljava/lang/String;ZZ)Lorg/hsqldb/persist/HsqlProperties;" and the stacktrace: "lucee.runtime.exp.NativeException: org.hsqldb.DatabaseURL.parseURL(Ljava/lang/String;ZZ)Lorg/hsqldb/persist/HsqlProperties; at org.hsqldb.jdbc.JDBCDriver.getConnection(Unknown Source) at org.hsqldb.jdbc.JDBCDataSource.getConnection(Unknown Source) at org.hsqldb.jdbc.JDBCDataSource.getConnection(Unknown Source) at org.geotools.referencing.factory.epsg.DirectEpsgFactory.getConnection(DirectEpsgFactory.java:3529) at org.geotools.referencing.factory.epsg.ThreadedEpsgFactory.createBackingStore(ThreadedEpsgFactory.java:437) at org.geotools.referencing.factory.DeferredAuthorityFactory.getBackingStore(DeferredAuthorityFactory.java:114) at org.geotools.referencing.factory.BufferedAuthorityFactory.isAvailable(BufferedAuthorityFactory.java:218) at org.geotools.referencing.factory.DeferredAuthorityFactory.isAvailable(DeferredAuthorityFactory.java:100) at org.geotools.util.factory.FactoryRegistry.isAvailable(FactoryRegistry.java:808) at org.geotools.util.factory.FactoryRegistry.isAcceptable(FactoryRegistry.java:631) at org.geotools.util.factory.FactoryRegistry.lambda$getFactories$0(FactoryRegistry.java:300) at java.util.stream.ReferencePipeline$2$1.accept(Unknown Source) at java.util.Spliterators$IteratorSpliterator.tryAdvance(Unknown Source) at java.util.stream.StreamSpliterators$WrappingSpliterator.lambda$initPartialTraversalState$0(Unknown Source) at java.util.stream.StreamSpliterators$AbstractWrappingSpliterator.fillBuffer(Unknown Source) at java.util.stream.StreamSpliterators$AbstractWrappingSpliterator.doAdvance(Unknown Source) at java.util.stream.StreamSpliterators$WrappingSpliterator.tryAdvance(Unknown Source) at java.util.Spliterators$1Adapter.hasNext(Unknown Source) at org.geotools.util.LazySet.isEmpty(LazySet.java:98) at org.geotools.referencing.factory.ManyAuthoritiesFactory.<init>(ManyAuthoritiesFactory.java:115) at org.geotools.referencing.DefaultAuthorityFactory.getBackingFactory(DefaultAuthorityFactory.java:114) at org.geotools.referencing.DefaultAuthorityFactory.<init>(DefaultAuthorityFactory.java:67) at org.geotools.referencing.CRS.getAuthorityFactory(CRS.java:253) at org.geotools.referencing.CRS.decode(CRS.java:533) at org.geotools.referencing.CRS.decode(CRS.java:447) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at lucee.runtime.reflection.pairs.MethodInstance.invoke(MethodInstance.java:56) at lucee.runtime.java.JavaObject.call(JavaObject.java:265) at lucee.runtime.java.JavaObject.call(JavaObject.java:287) at lucee.runtime.util.VariableUtilImpl.callFunctionWithoutNamedValues(VariableUtilImpl.java:787) at lucee.runtime.PageContextImpl.getFunction(PageContextImpl.java:1775) at beans.point_cfc$cf$11.udfCall(/model/beans/Point.cfc:54) at lucee.runtime.type.UDFImpl.implementation(UDFImpl.java:112) at lucee.runtime.type.UDFImpl._call(UDFImpl.java:350) at lucee.runtime.type.UDFImpl.call(UDFImpl.java:223) at lucee.runtime.ComponentImpl._call(ComponentImpl.java:696) at lucee.runtime.ComponentImpl._call(ComponentImpl.java:584) at lucee.runtime.ComponentImpl.call(ComponentImpl.java:1931) at lucee.runtime.util.VariableUtilImpl.callFunctionWithoutNamedValues(VariableUtilImpl.java:787) at lucee.runtime.PageContextImpl.getFunction(PageContextImpl.java:1775) at services.persistence.hazardfeature_cfc$cf.udfCall(/model/services/persistence/hazardFeature.cfc:50) at lucee.runtime.type.UDFImpl.implementation(UDFImpl.java:112) at lucee.runtime.type.UDFImpl._call(UDFImpl.java:350) at lucee.runtime.type.UDFImpl.call(UDFImpl.java:223) at lucee.runtime.ComponentImpl._call(ComponentImpl.java:696) at lucee.runtime.ComponentImpl._call(ComponentImpl.java:584) at lucee.runtime.ComponentImpl.call(ComponentImpl.java:1931) at lucee.runtime.util.VariableUtilImpl.callFunctionWithoutNamedValues(VariableUtilImpl.java:787) at lucee.runtime.PageContextImpl.getFunction(PageContextImpl.java:1775) at beans.point_cfc$cf$11.udfCall(/model/beans/Point.cfc:66) at lucee.runtime.type.UDFImpl.implementation(UDFImpl.java:112) at lucee.runtime.type.UDFImpl._call(UDFImpl.java:350) at lucee.runtime.type.UDFImpl.call(UDFImpl.java:223) at lucee.runtime.ComponentImpl._call(ComponentImpl.java:696) at lucee.runtime.ComponentImpl._call(ComponentImpl.java:584) at lucee.runtime.ComponentImpl.call(ComponentImpl.java:1931) at lucee.runtime.util.VariableUtilImpl.callFunctionWithoutNamedValues(VariableUtilImpl.java:787) at lucee.runtime.PageContextImpl.getFunction(PageContextImpl.java:1775) at models_cfc$cf.udfCall2(/controllers/models.cfc:569) at models_cfc$cf.udfCall(/controllers/models.cfc) at lucee.runtime.type.UDFImpl.implementation(UDFImpl.java:112) at lucee.runtime.type.UDFImpl._call(UDFImpl.java:350) at lucee.runtime.type.UDFImpl.callWithNamedValues(UDFImpl.java:213) at lucee.runtime.ComponentImpl._call(ComponentImpl.java:697) at lucee.runtime.ComponentImpl._call(ComponentImpl.java:584) at lucee.runtime.ComponentImpl.callWithNamedValues(ComponentImpl.java:1950) at lucee.runtime.util.VariableUtilImpl.callFunctionWithNamedValues(VariableUtilImpl.java:900) at lucee.runtime.functions.dynamicEvaluation.Invoke.call(Invoke.java:49) at framework.one_cfc$cf.udfCallb(/framework/one.cfc:1635) at framework.one_cfc$cf.udfCall(/framework/one.cfc) at lucee.runtime.type.UDFImpl.implementation(UDFImpl.java:112) at lucee.runtime.type.UDFImpl._call(UDFImpl.java:350) at lucee.runtime.type.UDFImpl.call(UDFImpl.java:223) at lucee.runtime.type.scope.UndefinedImpl.call(UndefinedImpl.java:786) at lucee.runtime.util.VariableUtilImpl.callFunctionWithoutNamedValues(VariableUtilImpl.java:787) at lucee.runtime.PageContextImpl.getFunction(PageContextImpl.java:1775) at framework.one_cfc$cf.udfCall6(/framework/one.cfc:896) at framework.one_cfc$cf.udfCall(/framework/one.cfc) at lucee.runtime.type.UDFImpl.implementation(UDFImpl.java:112) at lucee.runtime.type.UDFImpl._call(UDFImpl.java:350) at lucee.runtime.type.UDFImpl.call(UDFImpl.java:223) at lucee.runtime.ComponentImpl._call(ComponentImpl.java:696) at lucee.runtime.ComponentImpl._call(ComponentImpl.java:584) at lucee.runtime.ComponentImpl.call(ComponentImpl.java:1931) at lucee.runtime.listener.ModernAppListener.call(ModernAppListener.java:444) at lucee.runtime.listener.ModernAppListener._onRequest(ModernAppListener.java:218) at lucee.runtime.listener.MixedAppListener.onRequest(MixedAppListener.java:44) at lucee.runtime.PageContextImpl.execute(PageContextImpl.java:2493) at lucee.runtime.PageContextImpl._execute(PageContextImpl.java:2478) at lucee.runtime.PageContextImpl.executeCFML(PageContextImpl.java:2449) at lucee.runtime.engine.Request.exe(Request.java:45) at lucee.runtime.engine.CFMLEngineImpl._service(CFMLEngineImpl.java:1216) at lucee.runtime.engine.CFMLEngineImpl.serviceCFML(CFMLEngineImpl.java:1162) at lucee.loader.engine.CFMLEngineWrapper.serviceCFML(CFMLEngineWrapper.java:97) at lucee.loader.servlet.CFMLServlet.service(CFMLServlet.java:51) at javax.servlet.http.HttpServlet.service(HttpServlet.java:590) at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:74) at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129) at org.cfmlprojects.regexpathinfofilter.RegexPathInfoFilter.doFilter(RegexPathInfoFilter.java:47) at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84) at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62) at io.undertow.servlet.handlers.ServletChain$1.handleRequest(ServletChain.java:68) at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36) at io.undertow.servlet.handlers.RedirectDirHandler.handleRequest(RedirectDirHandler.java:68) at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:117) at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46) at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64) at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60) at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77) at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) at runwar.Server$1.handleRequest(Server.java:510) at io.undertow.servlet.handlers.SendErrorPageHandler.handleRequest(SendErrorPageHandler.java:52) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:280) at io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:79) at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:134) at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:131) at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48) at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43) at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:260) at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:79) at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:100) at io.undertow.server.Connectors.executeRootHandler(Connectors.java:387) at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:852) at org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35) at org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:2019) at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1558) at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1449) at org.xnio.XnioWorker$WorkerThreadFactory$1$1.run(XnioWorker.java:1280) at java.lang.Thread.run(Unknown Source) Caused by: java.lang.NoSuchMethodError: org.hsqldb.DatabaseURL.parseURL(Ljava/lang/String;ZZ)Lorg/hsqldb/persist/HsqlProperties; ... 138 more"

Actually, that may work. I guess it's worth a shot to try. In reality, the bundle is wired when it's loaded by the OSGI framework using the manifest.

ok yeah that's my hope and understanding. from https://docs.lucee.org/guides/lucee-5/extensions.html#osgi-bundles, it says: "OSGi is the framework Lucee 5 is based on, that allows for the loading and unloading of JAR files on the fly at any time without a server restart being required. *In addition you can have different versions of the same JAR in your environment without causing a conflict.*" i just hope that extends to dependencies

@John Liljegren I would love to know if this still works if you do try the OSGi path: https://forgebox.io/view/commandbox-osgi