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Eclipse not building new class files

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Eclipse not building new class files

Subject: Eclipse not building new class files
From: Jeffrey Schmitz <email@hidden>
Date: Sun, 15 Jun 2014 19:32:16 -0500

Hello List,

This happens from time to time and I'd like to understand what's going on. When I change a java class in Eclipse, the compiler understands the changes, flags errors correctly, and lets me navigate through the new code. However, when I run my app via the debug menu, it acts like the changes were never made, and I notice that the class files in my project's build directory (bin) don't get updated. If I try a clean at this point, I then can no longer run my app as I get the Class Main is undefined error (see below), which makes sense since my bin folder is empty. And finally, I do have my project set to build automatically.

Any help tracking this down the real cause of this would be greatly appreciated as this has been a major pain in the neck over the years...

Exception in thread "main" java.lang.NoClassDefFoundError: com/netbrackets/app/Application

Caused by: java.lang.ClassNotFoundException: com.netbrackets.app.Application

	at java.net.URLClassLoader$1.run(URLClassLoader.java:202)

My build.properties files looks like:

classes.dir=bin

component.inlineBindingPrefix=$

component.inlineBindingSuffix=

component.wellFormedTemplateRequired=false

customInfoPListContent=

principalClass=com.netbrackets.app.Application

project.name=netBrackets

project.name.lowercase=netbrackets

project.type=application

webXML=false

webXML_CustomContent=

wolips.properties=/Developer/WebObjects/Versions/WebObjects543/wolips.543.properties

My wolips.543.properties is:

wo.api.root=

wo.apps.root=/Developer/WebObjects/Versions/WebObjects543/Library/WebObjects/Applications

wo.bootstrapjar=/Developer/WebObjects/Versions/WebObjects543/System/Library/WebObjects/JavaApplications/wotaskd.woa/WOBootstrap.jar

wo.extensions=/Developer/WebObjects/Versions/WebObjects543/Library/WebObjects/Extensions

wo.local.frameworks=/Developer/WebObjects/Versions/WebObjects543/Library/Frameworks

wo.local.root=/Developer/WebObjects/Versions/WebObjects543

wo.network.frameworks=

wo.network.root=/Network

wo.system.frameworks=/Developer/WebObjects/Versions/WebObjects543/System/Library/Frameworks

wo.system.root=/Developer/WebObjects/Versions/WebObjects543/System

wo.user.frameworks=/Users/netBrackets/Library/Frameworks

wo.user.root=/Users/netBrackets

wolips.properties=/Developer/WebObjects/versions/WebObjects543/wolips.543.properties

And just for good measure, my build.xml looks like:

<project name="netBrackets" default="build" basedir=".">
	<target name="build" depends="init.build,build.woapp,javaclient,ssdd,war,split,package" />

	<target name="install" depends="init.install,build.woapp,javaclient,ssdd,war,split,package" />

	<target name="clean" depends="init.properties">
		<delete dir="bin" />
		<delete dir="dist" />
	</target>

	<!-- basic initializations  -->
	<target name="init.install" depends="init.properties">
		<tstamp />
		<property name="dest.dir" value="${wo.apps.root}" />
	</target>

	<target name="init.build" depends="init.properties">
		<tstamp />
		<property name="dest.dir" value="dist" />
	</target>
	
	<!-- property determination  -->
	<target name="init.properties">
		<property file="build.properties" />

		<property name="wolips.properties" value="${user.home}${file.separator}Library${file.separator}Application Support${file.separator}WOLips${file.separator}wolips.properties" />
		<property file="${wolips.properties}" />
		<condition property="wo.properties.check.failed">
			<not>
				<and>
					<isset property="wo.system.frameworks" />
					<isset property="wo.local.frameworks" />
				</and>
			</not>
		</condition>
		<fail message="The properties 'wo.system.frameworks' and 'wo.local.frameworks' must be set. Check that your ${wolips.properties} is correct." if="wo.properties.check.failed" />

		<property name="build.app.name" value="${project.name}" />
		<property name="build.app.name.lowercase" value="${project.name.lowercase}" />
	</target>

	<!-- This copies webserver resources from app.woa's embedded frameworks into split install bundle -->
	<target name="split" description="Adds embedded framework webserver resources to the split install bundle by copying from deployment build bundle" unless="servletDeployment">
		<property name="wsdest.dir" value="${dest.dir}/Split" />
		<mkdir dir="${wsdest.dir}"/>
		<copy todir="${wsdest.dir}/WebObjects/${build.app.name}.woa" verbose="true">
			<fileset dir="${dest.dir}/${build.app.name}.woa/Contents">
				<include name="Frameworks/*.framework/WebServerResources/**"/>
			</fileset>
			<fileset dir="${dest.dir}/${build.app.name}.woa">
				<include name="Contents/WebServerResources/**"/>
			</fileset>
		</copy>
	</target>

  <target name="package" unless="servletDeployment">
    <tar destfile="${dest.dir}/${build.app.name}-Application.tar.gz"
        compression="gzip"
        longfile="gnu">
      <tarfileset dir="${dest.dir}" mode="750">
        <include name="${build.app.name}.woa/${build.app.name}"/>
      </tarfileset>
      <tarfileset dir="${dest.dir}">
        <exclude name="${build.app.name}.woa/${build.app.name}"/>
        <include name="${build.app.name}.woa/**"/>
      </tarfileset>
    </tar>
    <tar destfile="${dest.dir}/${build.app.name}-WebServerResources.tar.gz"
        compression="gzip"
        basedir="${wsdest.dir}/WebObjects"
        longfile="gnu"
        includes="${build.app.name}.woa/**">
    </tar>
	</target>

	<!-- woproject tasks -->
	<target name="build.woapp" depends="compile">
		<taskdef name="woapplication" classname="org.objectstyle.woproject.ant.WOApplication"/>

		<woapplication name="${build.app.name}" frameworksBaseURL="/WebObjects/Frameworks" destDir="${dest.dir}" customInfoPListContent="${customInfoPListContent}" principalClass="${principalClass}" webXML="${webXML}" webXML_CustomContent="${webXML_CustomContent}" servletAdaptor="er.extensions.jspservlet.ERXServletAdaptor">
			<classes dir="${classes.dir}">
				<includesfile name="woproject/classes.include.patternset" />
				<excludesfile name="woproject/classes.exclude.patternset" />
        <exclude if="javaClient" name="**/client/**/*.*"/>
			</classes>

			<wsresources dir=".">
				<includesfile name="woproject/wsresources.include.patternset" />
				<excludesfile name="woproject/wsresources.exclude.patternset" />
			</wsresources>

			<resources dir=".">
				<includesfile name="woproject/resources.include.patternset" />
				<excludesfile name="woproject/resources.exclude.patternset" />
        <exclude if="javaClient" name="**/client/**/*.*"/>
			</resources>

			<frameworks root="ProjectLocal" embed="${embed.ProjectLocal}" eclipse="true" />
			<frameworks root="External" embed="${embed.External}" eclipse="true" />
			<frameworks root="Local" embed="${embed.Local}" eclipse="true" />
			<frameworks root="User" embed="${embed.User}" eclipse="true" />
			<frameworks root="System" embed="${embed.System}" eclipse="true" />
			<frameworks root="Network" embed="${embed.Network}" eclipse="true" />

			<lib dir="Libraries">
				<include name="*.jar" />
			</lib>
		</woapplication>
	</target>
	
	<target name="javaclient" if="javaClient" depends="build.woapp">
		<mkdir dir="${dest.dir}/${build.app.name}.woa/Contents/WebServerResources/Java" />
		<jar basedir="${classes.dir}" excludes="**/server/**/*.*, **/server/**/" jarfile="${dest.dir}/${build.app.name}.woa/Contents/WebServerResources/Java/${build.app.name}.jar"/>
	</target>

	<target name="war" if="servletDeployment" depends="ssdd">
		<war destfile="${dest.dir}/${build.app.name}.war" webxml="${dest.dir}/${build.app.name}/WEB-INF/web.xml">
			<fileset dir="${dest.dir}/${build.app.name}">
				<include name="**" />
			</fileset>
		</war>
	</target>

	<!-- To use this target
    	1) create the LICENSE in your project directory
    	2) add JavaWOJSPServlet in your WOFrameworks build path
    	3) set servlet deployment to true in WOLips Properties
    -->
	<target name="ssdd" if="servletDeployment" depends="build.woapp">
		<mkdir dir="${dest.dir}/${build.app.name}/WEB-INF/classes" />
		<mkdir dir="${dest.dir}/${build.app.name}/WEB-INF/tlds" />
		<copy todir="${dest.dir}/${build.app.name}/WEB-INF/">
			<fileset dir="${dest.dir}/${build.app.name}.woa/Contents/">
				<include name="web.xml" />
			</fileset>
		</copy>
		<copy todir="${dest.dir}/${build.app.name}/WEB-INF/">
			<fileset dir="..">
				<include name="LICENSE" />
			</fileset>
		</copy>
		<copy todir="${dest.dir}/${build.app.name}/WEB-INF/">
			<fileset dir="${dest.dir}">
				<include name="${build.app.name}.woa/**" />
			</fileset>
		</copy>
		<!-- copy the frameworks to the WEBINFROOT/Library directory -->
		<copy todir="${dest.dir}/${build.app.name}/WEB-INF/">
			<fileset dir="${dest.dir}/${build.app.name}.woa/Contents">
				<include name="Library/**" />
			</fileset>
		</copy>
		<copy todir="${dest.dir}/${build.app.name}/WEB-INF/">
			<fileset dir="${dest.dir}/${build.app.name}.woa">
				<include name="Resources/**" />
			</fileset>
		</copy>
		<copy todir="${dest.dir}/${build.app.name}/WEB-INF/lib/">
			<fileset dir="${dest.dir}/${build.app.name}/WEB-INF">
				<include name="**/Resources/**/*.jar" />
			</fileset>
			<mapper type="flatten" />
		</copy>

		<!--  Get the necessary Frameworks from the webobjects system root instead of the project wrapper -->
		<copy todir="${dest.dir}/${build.app.name}/WEB-INF/lib" file="${wo.system.frameworks}/JavaWOJSPServlet.framework/WebServerResources/Java/JavaWOJSPServlet_client.jar" />

		<copy todir="${dest.dir}/${build.app.name}/WEB-INF/tlds">
			<fileset dir="${wo.system.frameworks}/JavaWOJSPServlet.framework/Resources/">
				<include name="WOtaglib_1_0.tld" />
			</fileset>
		</copy>

		<!-- the WebObject Extensions -->
		<copy todir="${dest.dir}/${build.app.name}/WEB-INF/lib">
			<fileset dir="${wo.extensions}">
				<include name="*.jar" />
				<exclude name="servlet.jar" />
			</fileset>
			<mapper type="flatten" />
		</copy>
		
		<!-- the Java Client Client-Side Classes 	  -->
		<copy todir="${dest.dir}/${build.app.name}/WEB-INF/${build.app.name}.woa/Contents/WebServerResources/Java">
			<fileset dir="${wo.local.frameworks}"> 
				<include name="**/WebServerResources/Java/*.jar"/> 
			</fileset> 
			<mapper type="flatten"/>
		</copy>
		
		<!-- fix the Macos*ClassPath.txt files  -->
		<replaceregexp file="${dest.dir}/${build.app.name}/WEB-INF/${build.app.name}.woa/Contents/MacOS/MacOSClassPath.txt" match="APPROOT/Resources/Java/${build.app.name.lowercase}.jar" replace="APPROOT/${build.app.name}.woa/Contents/Resources/Java/${build.app.name.lowercase}.jar" byline="true" />
		<replaceregexp file="${dest.dir}/${build.app.name}/WEB-INF/${build.app.name}.woa/Contents/MacOS/MacOSXServerClassPath.txt" match="APPROOT/Resources/Java/${build.app.name.lowercase}.jar" replace="APPROOT/${build.app.name}.woa/Contents/Resources/Java/${build.app.name.lowercase}.jar" byline="true" />

		<!-- fix the web.xml file:  the app itself needs build.app.name/Contents -->
		<replaceregexp file="${dest.dir}/${build.app.name}/WEB-INF/web.xml" match="WEBINFROOT/Resources/Java/${build.app.name.lowercase}.jar" replace="WEBINFROOT/${build.app.name}.woa/Contents/Resources/Java/${build.app.name.lowercase}.jar" byline="true" />

		<!-- fix the web.xml file to remove the extra Frameworks/ directory level for the frameworks -->
		<replaceregexp file="${dest.dir}/${build.app.name}/WEB-INF/web.xml" match="WEBINFROOT/Frameworks//" replace="WEBINFROOT/" byline="true" />
	</target>

	<target name="compile" depends="init.properties">
		<taskdef name="wocompile" classname="org.objectstyle.woproject.ant.WOCompile" />

		<mkdir dir="bin" />
		<wocompile srcdir="Sources" destdir="bin">
			<frameworks root="ProjectLocal" embed="false" eclipse="true" />
			<frameworks root="External" embed="false" eclipse="true" />
			<frameworks root="Local" embed="false" eclipse="true" />
			<frameworks root="User" embed="false" eclipse="true" />
			<frameworks root="System" embed="false" eclipse="true" />
			<frameworks root="Network" embed="false" eclipse="true" />
			<classpath>
				<fileset dir="Libraries">
					<include name="*.jar" />
				</fileset>
				<fileset dir="${wo.extensions}">
					<include name="*.jar" />
				</fileset>
			</classpath>
		</wocompile>
	</target>
</project>

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