sahar sa

Dear Ed Ward ,
Thank you for your help, the problem was I searched using wrong words: observing thread instead of MONITORING THREADS!
Sure it helped! and thank you so much!
Sahar.

Hi dear friends,
I am working on a project using JADE(agent middleware) and JAVA(netbeans). agents are implemented using java language and as I read every agent is a thread.
I want to know how can I see the agent's threads that are running in the project?

I'm really new in this one...! so any source suggesstion such as tutorial,website, book is really appreciated!

Thank you,
Sahar.

Hi guys,
Any help would be appreciated!
Thanks
Sahar

Dear Friends,
My program is running well but after some rounds throws me below error:
Can you tell me what could be the problem and how can I fix this?

SQLException: Communications link failure due to underlying exception: java.lang.NullPointerException ** BEGIN NESTED EXCEPTION ** java.io.EOFException MESSAGE: Can not read response from server. Expected to read 4 bytes, read 0 bytes before connection was unexpectedly lost. STACKTRACE: java.io.EOFException: Can not read response from server. Expected to read 4 bytes, read 0 bytes before connection was unexpectedly lost. at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:1997) at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2411) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2916) at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1631) at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1723) at com.mysql.jdbc.Connection.execSQL(Connection.java:3283) at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1332) at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1467) at DataBase.DB.select(DB.java:198) at booktrading.BookSellerAgent$CFP.action(BookSellerAgent.java:218) at jade.core.behaviours.Behaviour.actionWrapper(Behaviour.java:340) at jade.core.Agent$ActiveLifeCycle.execute(Agent.java:1463) at jade.core.Agent.run(Agent.java:1401) at com.mysql.jdbc.PreparedStatement.fillSendPacket(PreparedStatement.java:1709) at com.mysql.jdbc.PreparedStatement.fillSendPacket(PreparedStatement.java:1685) at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1396) at DataBase.DB.select(DB.java:198) at booktrading.BookSellerAgent$CFP.action(BookSellerAgent.java:218) at jade.core.behaviours.Behaviour.actionWrapper(Behaviour.java:340) at jade.core.Agent$ActiveLifeCycle.execute(Agent.java:1463) at jade.core.Agent.run(Agent.java:1401) at java.lang.Thread.run(Thread.java:619) *** Uncaught Exception for agent BookSellerAgent12 *** java.lang.NullPointerException at booktrading.BookSellerAgent$CFP.action(BookSellerAgent.java:219) at jade.core.behaviours.Behaviour.actionWrapper(Behaviour.java:340) at jade.core.Agent$ActiveLifeCycle.execute(Agent.java:1463) at jade.core.Agent.run(Agent.java:1401) at java.lang.Thread.run(Thread.java:619) java.lang.NullPointerException at com.mysql.jdbc.PreparedStatement.fillSendPacket(PreparedStatement.java:1709) at com.mysql.jdbc.PreparedStatement.fillSendPacket(PreparedStatement.java:1685) at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1396) at DataBase.DB.select(DB.java:198) at booktrading.BookSellerAgent$CFP.action(BookSellerAgent.java:218) at jade.core.behaviours.Behaviour.actionWrapper(Behaviour.java:340) at jade.core.Agent$ActiveLifeCycle.execute(Agent.java:1463) at jade.core.Agent.run(Agent.java:1401) at java.lang.Thread.run(Thread.java:619) *** Uncaught Exception for agent BookSellerAgent16 *** java.lang.NullPointerException at booktrading.BookSellerAgent$CFP.action(BookSellerAgent.java:219) at jade.core.behaviours.Behaviour.actionWrapper(Behaviour.java:340) at jade.core.Agent$ActiveLifeCycle.execute(Agent.java:1463) at jade.core.Agent.run(Agent.java:1401) at java.lang.Thread.run(Thread.java:619) java.lang.NullPointerException at com.mysql.jdbc.PreparedStatement.fillSendPacket(PreparedStatement.java:1709) at com.mysql.jdbc.PreparedStatement.fillSendPacket(PreparedStatement.java:1685) at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1396) at DataBase.DB.select(DB.java:198) at booktrading.BookSellerAgent$CFP.action(BookSellerAgent.java:218) at jade.core.behaviours.Behaviour.actionWrapper(Behaviour.java:340) at jade.core.Agent$ActiveLifeCycle.execute(Agent.java:1463) at jade.core.Agent.run(Agent.java:1401) at java.lang.Thread.run(Thread.java:619) *** Uncaught Exception for agent BookSellerAgent8 *** java.lang.NullPointerException at booktrading.BookSellerAgent$CFP.action(BookSellerAgent.java:219) at jade.core.behaviours.Behaviour.actionWrapper(Behaviour.java:340) at jade.core.Agent$ActiveLifeCycle.execute(Agent.java:1463) at jade.core.Agent.run(Agent.java:1401) at java.lang.Thread.run(Thread.java:619) java.lang.NullPointerException at com.mysql.jdbc.PreparedStatement.fillSendPacket(PreparedStatement.java:1709) at com.mysql.jdbc.PreparedStatement.fillSendPacket(PreparedStatement.java:1685) at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1396) at DataBase.DB.select(DB.java:198) at booktrading.BookSellerAgent$CFP.action(BookSellerAgent.java:218) at jade.core.behaviours.Behaviour.actionWrapper(Behaviour.java:340) at jade.core.Agent$ActiveLifeCycle.execute(Agent.java:1463) at jade.core.Agent.run(Agent.java:1401) at java.lang.Thread.run(Thread.java:619) *** Uncaught Exception for agent BookSellerAgent4 *** java.lang.NullPointerException at booktrading.BookSellerAgent$CFP.action(BookSellerAgent.java:219) at jade.core.behaviours.Behaviour.actionWrapper(Behaviour.java:340) at jade.core.Agent$ActiveLifeCycle.execute(Agent.java:1463) at jade.core.Agent.run(Agent.java:1401) at java.lang.Thread.run(Thread.java:619) java.lang.NullPointerException at com.mysql.jdbc.PreparedStatement.fillSendPacket(PreparedStatement.java:1709) at com.mysql.jdbc.PreparedStatement.fillSendPacket(PreparedStatement.java:1685) at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1396) at DataBase.DB.select(DB.java:198) at booktrading.BookSellerAgent$CFP.action(BookSellerAgent.java:218) at jade.core.behaviours.Behaviour.actionWrapper(Behaviour.java:340) at jade.core.Agent$ActiveLifeCycle.execute(Agent.java:1463) at jade.core.Agent.run(Agent.java:1401) at java.lang.Thread.run(Thread.java:619) *** Uncaught Exception for agent BookSellerAgent10 *** java.lang.NullPointerException at booktrading.BookSellerAgent$CFP.action(BookSellerAgent.java:219) at jade.core.behaviours.Behaviour.actionWrapper(Behaviour.java:340) at jade.core.Agent$ActiveLifeCycle.execute(Agent.java:1463) at jade.core.Agent.run(Agent.java:1401) at java.lang.Thread.run(Thread.java:619) java.lang.NullPointerException at com.mysql.jdbc.PreparedStatement.fillSendPacket(PreparedStatement.java:1709) at com.mysql.jdbc.PreparedStatement.fillSendPacket(PreparedStatement.java:1685) at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1396) at DataBase.DB.select(DB.java:198) at booktrading.BookSellerAgent$CFP.action(BookSellerAgent.java:218) at jade.core.behaviours.Behaviour.actionWrapper(Behaviour.java:340) at jade.core.Agent$ActiveLifeCycle.execute(Agent.java:1463) at jade.core.Agent.run(Agent.java:1401) at java.lang.Thread.run(Thread.java:619) *** Uncaught Exception for agent BookSellerAgent14 *** java.lang.NullPointerException at booktrading.BookSellerAgent$CFP.action(BookSellerAgent.java:219) at jade.core.behaviours.Behaviour.actionWrapper(Behaviour.java:340) at jade.core.Agent$ActiveLifeCycle.execute(Agent.java:1463) at jade.core.Agent.run(Agent.java:1401) at java.lang.Thread.run(Thread.java:619) java.lang.NullPointerException at com.mysql.jdbc.PreparedStatement.fillSendPacket(PreparedStatement.java:1709) at com.mysql.jdbc.PreparedStatement.fillSendPacket(PreparedStatement.java:1685) at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1396) at DataBase.DB.select(DB.java:198) at booktrading.BookSellerAgent$CFP.action(BookSellerAgent.java:218) at jade.core.behaviours.Behaviour.actionWrapper(Behaviour.java:340) at jade.core.Agent$ActiveLifeCycle.execute(Agent.java:1463) at jade.core.Agent.run(Agent.java:1401) at java.lang.Thread.run(Thread.java:619) *** Uncaught Exception for agent BookSellerAgent2 *** java.lang.NullPointerException at booktrading.BookSellerAgent$CFP.action(BookSellerAgent.java:219) at jade.core.behaviours.Behaviour.actionWrapper(Behaviour.java:340) at jade.core.Agent$ActiveLifeCycle.execute(Agent.java:1463) at jade.core.Agent.run(Agent.java:1401) at java.lang.Thread.run(Thread.java:619) *** Uncaught Exception for agent BookSellerAgent18 *** java.lang.NullPointerException at booktrading.BookSellerAgent$CFP.action(BookSellerAgent.java:219) at jade.core.behaviours.Behaviour.actionWrapper(Behaviour.java:340) at jade.core.Agent$ActiveLifeCycle.execute(Agent.java:1463) at jade.core.Agent.run(Agent.java:1401) at java.lang.Thread.run(Thread.java:619) at java.lang.Thread.run(Thread.java:619) ** END NESTED EXCEPTION ** Last packet sent to the server was 6552 ms ago. SQLState: 08S01 VendorError: 0 ERROR: Agent BookSellerAgent12 died without being properly terminated !!! State was 2 ERROR: Agent BookSellerAgent16 died without being properly terminated !!! State was 2 ERROR: Agent BookSellerAgent8 died without being properly terminated !!! State was 2 ERROR: Agent BookSellerAgent4 died without being properly terminated !!! State was 2 ERROR: Agent BookSellerAgent10 died without being properly terminated !!! State was 2 ERROR: Agent BookSellerAgent14 died without being properly terminated !!! State was 2 ERROR: Agent BookSellerAgent18 died without being properly terminated !!! State was 2 SQLException: No operations allowed after connection closed.Connection was implicitly closed due to underlying exception/error: ** BEGIN NESTED EXCEPTION ** com.mysql.jdbc.CommunicationsException MESSAGE: Communications link failure due to underlying exception:

Thank you,
Sahar.

hey guys,
some use full links about rrors on initializing heap size:
errors on JAVA heap memory
how to initialize java heap memory

cheers
Sahar

Dear
im sorry if it's a silly question but Im really new in this one.
the mentioned path address is not exist in build.xml file so I couldn't find where should I change! can you tell me which line I should change?
here is the content of built.xml
<?xml version="1.0" encoding="UTF-8" ?> - <!-- *** GENERATED FROM project.xml - DO NOT EDIT *** *** EDIT ../build.xml INSTEAD *** For the purpose of easier reading the script is divided into following sections: - initialization - compilation - jar - execution - debugging - javadoc - junit compilation - junit execution - junit debugging - applet - cleanup --> - <project name="BookTrading-impl" default="default" basedir=".." xmlns:j2seproject3="http://www.netbeans.org/ns/j2se-project/3" xmlns:j2seproject2="http://www.netbeans.org/ns/j2se-project/2" xmlns:j2seproject1="http://www.netbeans.org/ns/j2se-project/1" xmlns:jaxws="http://www.netbeans.org/ns/jax-ws/1"> <target name="default" depends="test,jar,javadoc" description="Build and test whole project." /> - <!-- ====================== INITIALIZATION SECTION ====================== --> - <target name="-pre-init"> - <!-- Empty placeholder for easier customization. --> - <!-- You can override this target in the ../build.xml file. --> </target> - <target name="-init-private" depends="-pre-init"> <property file="nbproject/private/private.properties" /> </target> - <target name="-init-user" depends="-pre-init,-init-private"> <property file="${user.properties.file}" /> - <!-- The two properties below are usually overridden --> - <!-- by the active platform. Just a fallback. --> <property name="default.javac.source" value="1.4" /> <property name="default.javac.target" value="1.4" /> </target> - <target name="-init-project" depends="-pre-init,-init-private,-init-user"> <property file="nbproject/project.properties" /> </target> - <target name="-do-init" depends="-pre-init,-init-private,-init-user,-init-project,-init-macrodef-property"> <available file="${manifest.file}" property="manifest.available" /> - <condition property="manifest.available+main.class"> - <and> <isset property="manifest.available" /> <isset property="main.class" /> - <not> <equals arg1="${main.class}" arg2="" trim="true" /> </not> </and> </condition> - <condition property="manifest.available+main.class+mkdist.available"> - <and> <istrue value="${manifest.available+main.class}" /> <isset property="libs.CopyLibs.classpath" /> </and> </condition> - <condition property="have.tests"> - <or> <available file="${test.src.dir}" /> </or> </condition> - <condition property="have.sources"> - <or> <available file="${src.dir}" /> </or> </condition> - <condition property="netbeans.home+have.tests"> - <and> <isset property="netbeans.home" /> <isset property="have.tests" /> </and> </condition> - <condition property="no.javadoc.preview"> <isfalse value="${javadoc.preview}" /> </condition> <property name="run.jvmargs" value="" /> <property name="javac.compilerargs" value="" /> <property name="work.dir" value="${basedir}" /> - <condition property="no.deps"> - <and> <istrue value="${no.dependencies}" /> </and> </condition> <property name="javac.debug" value="true" /> <property name="javadoc.preview" value="true" /> </target> - <target name="-post-init"> - <!-- Empty placeholder for easier customization. --> - <!-- You can override this target in the ../build.xml file. --> </target> - <target name="-init-check" depends="-pre-init,-init-private,-init-user,-init-project,-do-init"> <fail unless="src.dir">Must set src.dir</fail> <fail unless="test.src.dir">Must set test.src.dir</fail> <fail unless="build.dir">Must set build.dir</fail> <fail unless="dist.dir">Must set dist.dir</fail> <fail unless="build.classes.dir">Must set build.classes.dir</fail> <fail unless="dist.javadoc.dir">Must set dist.javadoc.dir</fail> <fail unless="build.test.classes.dir">Must set build.test.classes.dir</fail> <fail unless="build.test.results.dir">Must set build.test.results.dir</fail> <fail unless="build.classes.excludes">Must set build.classes.excludes</fail> <fail unless="dist.jar">Must set dist.jar</fail> </target> - <target name="-init-macrodef-property"> - <macrodef name="property" uri="http://www.netbeans.org/ns/j2se-project/1"> <attribute name="name" /> <attribute name="value" /> - <sequential> <property name="@{name}" value="${@{value}}" /> </sequential> </macrodef> </target> - <target name="-init-macrodef-javac"> - <macrodef name="javac" uri="http://www.netbeans.org/ns/j2se-project/3"> <attribute name="srcdir" default="${src.dir}" /> <attribute name="destdir" default="${build.classes.dir}" /> <attribute name="classpath" default="${javac.classpath}" /> <attribute name="debug" default="${javac.debug}" /> <element name="customize" optional="true" /> - <sequential> - <javac srcdir="@{srcdir}" destdir="@{destdir}" debug="@{debug}" deprecation="${javac.deprecation}" source="${javac.source}" target="${javac.target}" includeantruntime="false"> - <classpath> <path path="@{classpath}" /> </classpath> <compilerarg line="${javac.compilerargs}" /> <customize /> </javac> </sequential> </macrodef> </target> - <target name="-init-macrodef-junit"> - <macrodef name="junit" uri="http://www.netbeans.org/ns/j2se-project/3"> <attribute name="includes" default="**/*Test.java" /> - <sequential> - <junit showoutput="true" fork="true" dir="${basedir}" failureproperty="tests.failed" errorproperty="tests.failed"> - <batchtest todir="${build.test.results.dir}"> <fileset dir="${test.src.dir}" includes="@{includes}" /> </batchtest> - <classpath> <path path="${run.test.classpath}" /> </classpath> - <syspropertyset> <propertyref prefix="test-sys-prop." /> <mapper type="glob" from="test-sys-prop.*" to="*" /> </syspropertyset> <formatter type="brief" usefile="false" /> <formatter type="xml" /> <jvmarg line="${run.jvmargs}" /> </junit> </sequential> </macrodef> </target> - <target name="-init-macrodef-nbjpda"> - <macrodef name="nbjpdastart" uri="http://www.netbeans.org/ns/j2se-project/1"> <attribute name="name" default="${main.class}" /> <attribute name="classpath" default="${debug.classpath}" /> <attribute name="stopclassname" default="" /> - <sequential> - <nbjpdastart transport="dt_socket" addressproperty="jpda.address" name="@{name}" stopclassname="@{stopclassname}"> - <classpath> <path path="@{classpath}" /> </classpath> </nbjpdastart> </sequential> </macrodef> - <macrodef name="nbjpdareload" uri="http://www.netbeans.org/ns/j2se-project/1"> <attribute name="dir" default="${build.classes.dir}" /> - <sequential> - <nbjpdareload> <fileset includes="${fix.includes}*.class" dir="@{dir}" /> </nbjpdareload> </sequential> </macrodef> </target> - <target name="-init-macrodef-debug"> - <macrodef name="debug" uri="http://www.netbeans.org/ns/j2se-project/3"> <attribute name="classname" default="${main.class}" /> <attribute name="classpath" default="${debug.classpath}" /> <element name="customize" optional="true" /> - <sequential> - <java fork="true" classname="@{classname}" dir="${work.dir}"> <jvmarg value="-Xdebug" /> <jvmarg value="-Xnoagent" /> <jvmarg value="-Djava.compiler=none" /> <jvmarg value="-Xrunjdwp:transport=dt_socket,address=${jpda.address}" /> <jvmarg line="${run.jvmargs}" /> - <classpath> <path path="@{classpath}" /> </classpath> - <syspropertyset> <propertyref prefix="run-sys-prop." /> <mapper type="glob" from="run-sys-prop.*" to="*" /> </syspropertyset> <customize /> </java> </sequential> </macrodef> </target> - <target name="-init-macrodef-java"> - <macrodef name="java" uri="http://www.netbeans.org/ns/j2se-project/1"> <attribute name="classname" default="${main.class}" /> <element name="customize" optional="true" /> - <sequential> - <java fork="true" classname="@{classname}" dir="${work.dir}"> <jvmarg line="${run.jvmargs}" /> - <classpath> <path path="${run.classpath}" /> </classpath> - <syspropertyset> <propertyref prefix="run-sys-prop." /> <mapper type="glob" from="run-sys-prop.*" to="*" /> </syspropertyset> <customize /> </java> </sequential> </macrodef> </target> - <target name="-init-presetdef-jar"> - <presetdef name="jar" uri="http://www.netbeans.org/ns/j2se-project/1"> - <jar jarfile="${dist.jar}" compress="${jar.compress}"> <j2seproject1:fileset dir="${build.classes.dir}" /> </jar> </presetdef> </target> <target name="init" depends="-pre-init,-init-private,-init-user,-init-project,-do-init,-post-init,-init-check,-init-macrodef-property, -init-macrodef-javac,-init-macrodef-junit,-init-macrodef-nbjpda,-init-macrodef-debug,-init-macrodef-java,-init-presetdef-jar" /> - <!-- =================== COMPILATION SECTION =================== --> <target name="deps-jar" depends="init" unless="no.deps" /> - <target name="-pre-pre-compile" depends="init,deps-jar"> <mkdir dir="${build.classes.dir}" /> </target> - <target name="-pre-compile"> - <!-- Empty placeholder for easier customization. --> - <!-- You can override this target in the ../build.xml file. --> </target> - <target name="-do-compile" depends="init,deps-jar,-pre-pre-compile,-pre-compile" if="have.sources"> <j2seproject3:javac /> - <copy todir="${build.classes.dir}"> <fileset dir="${src.dir}" excludes="${build.classes.excludes}" /> </copy> </target> - <target name="-post-compile"> - <!-- Empty placeholder for easier customization. --> - <!-- You can override this target in the ../build.xml file. --> </target> <target name="compile" depends="init,deps-jar,-pre-pre-compile,-pre-compile,-do-compile,-post-compile" description="Compile project." /> - <target name="-pre-compile-single"> - <!-- Empty placeholder for easier customization. --> - <!-- You can override this target in the ../build.xml file. --> </target> - <target name="-do-compile-single" depends="init,deps-jar,-pre-pre-compile"> <fail unless="javac.includes">Must select some files in the IDE or set javac.includes</fail> - <j2seproject3:javac> - <customize> <patternset includes="${javac.includes}" /> </customize> </j2seproject3:javac> </target> - <target name="-post-compile-single"> - <!-- Empty placeholder for easier customization. --> - <!-- You can override this target in the ../build.xml file. --> </target> <target name="compile-single" depends="init,deps-jar,-pre-pre-compile,-pre-compile-single,-do-compile-single,-post-compile-single" /> - <!-- ==================== JAR BUILDING SECTION ==================== --> - <target name="-pre-pre-jar" depends="init"> <dirname property="dist.jar.dir" file="${dist.jar}" /> <mkdir dir="${dist.jar.dir}" /> </target> - <target name="-pre-jar"> - <!-- Empty placeholder for easier customization. --> - <!-- You can override this target in the ../build.xml file. --> </target> - <target name="-do-jar-without-manifest" depends="init,compile,-pre-pre-jar,-pre-jar" unless="manifest.available"> <j2seproject1:jar /> </target> - <target name="-do-jar-with-manifest" depends="init,compile,-pre-pre-jar,-pre-jar" if="manifest.available" unless="manifest.available+main.class"> <j2seproject1:jar manifest="${manifest.file}" /> </target> - <target name="-do-jar-with-mainclass" depends="init,compile,-pre-pre-jar,-pre-jar" if="manifest.available+main.class" unless="manifest.available+main.class+mkdist.available"> - <j2seproject1:jar manifest="${manifest.file}"> - <j2seproject1:manifest> <j2seproject1:attribute name="Main-Class" value="${main.class}" /> </j2seproject1:manifest> </j2seproject1:jar> <echo>To run this application from the command line without Ant, try:</echo> <property name="build.classes.dir.resolved" location="${build.classes.dir}" /> <property name="dist.jar.resolved" location="${dist.jar}" /> - <pathconvert property="run.classpath.with.dist.jar"> <path path="${run.classpath}" /> <map from="${build.classes.dir.resolved}" to="${dist.jar.resolved}" /> </pathconvert> <echo>java -cp "${run.classpath.with.dist.jar}" ${main.class}</echo> </target> - <target name="-do-jar-with-libraries" depends="init,compile,-pre-pre-jar,-pre-jar" if="manifest.available+main.class+mkdist.available"> <property name="build.classes.dir.resolved" location="${build.classes.dir}" /> - <pathconvert property="run.classpath.without.build.classes.dir"> <path path="${run.classpath}" /> <map from="${build.classes.dir.resolved}" to="" /> </pathconvert> - <pathconvert property="jar.classpath" pathsep=""> <path path="${run.classpath.without.build.classes.dir}" /> - <chainedmapper> <flattenmapper /> <globmapper from="*" to="lib/*" /> </chainedmapper> </pathconvert> <taskdef classname="org.netbeans.modules.java.j2seproject.copylibstask.CopyLibs" name="copylibs" classpath="${libs.CopyLibs.classpath}" /> - <copylibs manifest="${manifest.file}" runtimeclasspath="${run.classpath.without.build.classes.dir}" jarfile="${dist.jar}" compress="${jar.compress}"> <fileset dir="${build.classes.dir}" /> - <manifest> <attribute name="Main-Class" value="${main.class}" /> <attribute name="Class-Path" value="${jar.classpath}" /> </manifest> </copylibs> <echo>To run this application from the command line without Ant, try:</echo> <property name="dist.jar.resolved" location="${dist.jar}" /> <echo>java -jar "${dist.jar.resolved}"</echo> </target> - <target name="-post-jar"> - <!-- Empty placeholder for easier customization. --> - <!-- You can override this target in the ../build.xml file. --> </target> <target name="jar" depends="init,compile,-pre-jar,-do-jar-with-manifest,-do-jar-without-manifest,-do-jar-with-mainclass, -do-jar-with-libraries,-post-jar" description="Build JAR." /> - <!-- ================= EXECUTION SECTION ================= --> - <target name="run" depends="init,compile" description="Run a main class."> - <j2seproject1:java> - <customize> <arg line="${application.args}" /> </customize> </j2seproject1:java> </target> - <target name="run-single" depends="init,compile-single"> <fail unless="run.class">Must select one file in the IDE or set run.class</fail> <j2seproject1:java classname="${run.class}" /> </target> - <!-- ================= DEBUGGING SECTION ================= --> - <target name="-debug-start-debugger" if="netbeans.home" depends="init"> <j2seproject1:nbjpdastart name="${debug.class}" /> </target> - <target name="-debug-start-debuggee" depends="init,compile"> - <j2seproject3:debug> - <customize> <arg line="${application.args}" /> </customize> </j2seproject3:debug> </target> <target name="debug" if="netbeans.home" depends="init,compile,-debug-start-debugger,-debug-start-debuggee" description="Debug project in IDE." /> - <target name="-debug-start-debugger-stepinto" if="netbeans.home" depends="init"> <j2seproject1:nbjpdastart stopclassname="${main.class}" /> </target> <target name="debug-stepinto" if="netbeans.home" depends="init,compile,-debug-start-debugger-stepinto,-debug-start-debuggee" /> - <target name="-debug-start-debuggee-single" if="netbeans.home" depends="init,compile-single"> <fail unless="debug.class">Must select one file in the IDE or set debug.class</fail> <j2seproject3:debug classname="${debug.class}" /> </target> <target name="debug-single" if="netbeans.home" depends="init,compile-single,-debug-start-debugger,-debug-start-debuggee-single" /> - <target name="-pre-debug-fix" depends="init"> <fail unless="fix.includes">Must set fix.includes</fail> <property name="javac.includes" value="${fix.includes}.java" /> </target> - <target name="-do-debug-fix" if="netbeans.home" depends="init,-pre-debug-fix,compile-single"> <j2seproject1:nbjpdareload /> </target> <target name="debug-fix" if="netbeans.home" depends="init,-pre-debug-fix,-do-debug-fix" /> - <!-- =============== JAVADOC SECTION =============== --> - <target name="-javadoc-build" depends="init"> <mkdir dir="${dist.javadoc.dir}" /> - <javadoc destdir="${dist.javadoc.dir}" source="${javac.source}" notree="${javadoc.notree}" use="${javadoc.use}" nonavbar="${javadoc.nonavbar}" noindex="${javadoc.noindex}" splitindex="${javadoc.splitindex}" author="${javadoc.author}" version="${javadoc.version}" windowtitle="${javadoc.windowtitle}" private="${javadoc.private}" additionalparam="${javadoc.additionalparam}" failonerror="true" useexternalfile="true"> - <classpath> <path path="${javac.classpath}" /> </classpath> - <sourcepath> <pathelement location="${src.dir}" /> </sourcepath> <packageset dir="${src.dir}" includes="*/**" /> <fileset dir="${src.dir}" includes="*.java" /> </javadoc> </target> - <target name="-javadoc-browse" if="netbeans.home" unless="no.javadoc.preview" depends="init,-javadoc-build"> <nbbrowse file="${dist.javadoc.dir}/index.html" /> </target> <target name="javadoc" depends="init,-javadoc-build,-javadoc-browse" description="Build Javadoc." /> - <!-- ========================= JUNIT COMPILATION SECTION ========================= --> - <target name="-pre-pre-compile-test" if="have.tests" depends="init,compile"> <mkdir dir="${build.test.classes.dir}" /> </target> - <target name="-pre-compile-test"> - <!-- Empty placeholder for easier customization. --> - <!-- You can override this target in the ../build.xml file. --> </target> - <target name="-do-compile-test" if="have.tests" depends="init,compile,-pre-pre-compile-test,-pre-compile-test"> <j2seproject3:javac srcdir="${test.src.dir}" destdir="${build.test.classes.dir}" debug="true" classpath="${javac.test.classpath}" /> - <copy todir="${build.test.classes.dir}"> <fileset dir="${test.src.dir}" excludes="**/*.java" /> </copy> </target> - <target name="-post-compile-test"> - <!-- Empty placeholder for easier customization. --> - <!-- You can override this target in the ../build.xml file. --> </target> <target name="compile-test" depends="init,compile,-pre-pre-compile-test,-pre-compile-test,-do-compile-test,-post-compile-test" /> - <target name="-pre-compile-test-single"> - <!-- Empty placeholder for easier customization. --> - <!-- You can override this target in the ../build.xml file. --> </target> - <target name="-do-compile-test-single" if="have.tests" depends="init,compile,-pre-pre-compile-test,-pre-compile-test-single"> <fail unless="javac.includes">Must select some files in the IDE or set javac.includes</fail> - <j2seproject3:javac srcdir="${test.src.dir}" destdir="${build.test.classes.dir}" debug="true" classpath="${javac.test.classpath}"> - <customize> <patternset includes="${javac.includes}" /> </customize> </j2seproject3:javac> - <copy todir="${build.test.classes.dir}"> <fileset dir="${test.src.dir}" excludes="**/*.java" /> </copy> </target> - <target name="-post-compile-test-single"> - <!-- Empty placeholder for easier customization. --> - <!-- You can override this target in the ../build.xml file. --> </target> <target name="compile-test-single" depends="init,compile,-pre-pre-compile-test,-pre-compile-test-single,-do-compile-test-single,-post-compile-test-single" /> - <!-- ======================= JUNIT EXECUTION SECTION ======================= --> - <target name="-pre-test-run" if="have.tests" depends="init"> <mkdir dir="${build.test.results.dir}" /> </target> - <target name="-do-test-run" if="have.tests" depends="init,compile-test,-pre-test-run"> <j2seproject3:junit /> </target> - <target name="-post-test-run" if="have.tests" depends="init,compile-test,-pre-test-run,-do-test-run"> <fail if="tests.failed">Some tests failed; see details above.</fail> </target> <target name="test-report" if="have.tests" depends="init" /> <target name="-test-browse" if="netbeans.home+have.tests" depends="init" /> <target name="test" depends="init,compile-test,-pre-test-run,-do-test-run,test-report,-post-test-run,-test-browse" description="Run unit tests." /> - <target name="-pre-test-run-single" if="have.tests" depends="init"> <mkdir dir="${build.test.results.dir}" /> </target> - <target name="-do-test-run-single" if="have.tests" depends="init,compile-test-single,-pre-test-run-single"> <fail unless="test.includes">Must select some files in the IDE or set test.includes</fail> <j2seproject3:junit includes="${test.includes}" /> </target> - <target name="-post-test-run-single" if="have.tests" depends="init,compile-test-single,-pre-test-run-single,-do-test-run-single"> <fail if="tests.failed">Some tests failed; see details above.</fail> </target> <target name="test-single" depends="init,compile-test-single,-pre-test-run-single,-do-test-run-single,-post-test-run-single" description="Run single unit test." /> - <!-- ======================= JUNIT DEBUGGING SECTION ======================= --> - <target name="-debug-start-debuggee-test" if="have.tests" depends="init,compile-test"> <fail unless="test.class">Must select one file in the IDE or set test.class</fail> - <j2seproject3:debug classname="junit.textui.TestRunner" classpath="${debug.test.classpath}"> - <customize> <arg line="${test.class}" /> </customize> </j2seproject3:debug> </target> - <target name="-debug-start-debugger-test" if="netbeans.home+have.tests" depends="init,compile-test"> <j2seproject1:nbjpdastart name="${test.class}" classpath="${debug.test.classpath}" /> </target> <target name="debug-test" depends="init,compile-test,-debug-start-debugger-test,-debug-start-debuggee-test" /> - <target name="-do-debug-fix-test" if="netbeans.home" depends="init,-pre-debug-fix,compile-test-single"> <j2seproject1:nbjpdareload dir="${build.test.classes.dir}" /> </target> <target name="debug-fix-test" if="netbeans.home" depends="init,-pre-debug-fix,-do-debug-fix-test" /> - <!-- ========================= APPLET EXECUTION SECTION ========================= --> - <target name="run-applet" depends="init,compile-single"> <fail unless="applet.url">Must select one file in the IDE or set applet.url</fail> - <j2seproject1:java classname="sun.applet.AppletViewer"> - <customize> <arg value="${applet.url}" /> </customize> </j2seproject1:java> </target> - <!-- ========================= APPLET DEBUGGING SECTION ========================= --> - <target name="-debug-start-debuggee-applet" if="netbeans.home" depends="init,compile-single"> <fail unless="applet.url">Must select one file in the IDE or set applet.url</fail> - <j2seproject3:debug classname="sun.applet.AppletViewer"> - <customize> <arg value="${applet.url}" /> </customize> </j2seproject3:debug> </target> <target name="debug-applet" if="netbeans.home" depends="init,compile-single,-debug-start-debugger,-debug-start-debuggee-applet" /> - <!-- =============== CLEANUP SECTION =============== --> <target name="deps-clean" depends="init" unless="no.deps" /> - <target name="-do-clean" depends="init"> <delete dir="${build.dir}" /> <delete dir="${dist.dir}" /> </target> - <target name="-post-clean"> - <!-- Empty placeholder for easier customization. --> - <!-- You can override this target in the ../build.xml file. --> </target> <target name="clean" depends="init,deps-clean,-do-clean,-post-clean" description="Clean build products." /> </project>

thank you so much!
sahar

Dear friend
Still the error is there, I wonder why it prints out the address of the directory which was on my previouse pc ? (previousley my program was on C:\Documents and Settings\student\Desktop\project incomplete\1-work On\BookTrading\BookTrading )
because the program is already in :C:\testTrading\BookTrading\BookTrading\
C:\testTrading\BookTrading\BookTrading\nbproject\build-impl.xml:209: C:\Documents and Settings\student\Desktop\project incomplete\1-work On\BookTrading\BookTrading is not a valid directory at org.apache.tools.ant.taskdefs.Java.fork(Java.java:732) at org.apache.tools.ant.taskdefs.Java.executeJava(Java.java:171) at org.apache.tools.ant.taskdefs.Java.execute(Java.java:84) at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275) at org.apache.tools.ant.Task.perform(Task.java:364) at org.apache.tools.ant.taskdefs.Sequential.execute(Sequential.java:64) at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275) at org.apache.tools.ant.Task.perform(Task.java:364) at org.apache.tools.ant.taskdefs.MacroInstance.execute(MacroInstance.java:378) at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275) at org.apache.tools.ant.Task.perform(Task.java:364) at org.apache.tools.ant.Target.execute(Target.java:341) at org.apache.tools.ant.Target.performTasks(Target.java:369) at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1216) at org.apache.tools.ant.Project.executeTarget(Project.java:1185) at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:40) at org.apache.tools.ant.Project.executeTargets(Project.java:1068) at org.apache.tools.ant.module.bridge.impl.BridgeImpl.run(BridgeImpl.java:240) at org.apache.tools.ant.module.run.TargetExecutor.run(TargetExecutor.java:293) at org.netbeans.core.execution.RunClassThread.run(RunClassThread.java:131)
any suggestion?
thank you
sahar

Dear friends
I had my project in one computer and know that i copy it to my laptop it throws me this error:
do you know what may cause this error? an how can i solve it?
C:\Users\user\Desktop\project incomplete\1-work On\BookTrading\BookTrading\nbproject\build-impl.xml:209: C:\Documents and Settings\student\Desktop\project incomplete\1-work On\BookTrading\BookTrading is not a valid directory at org.apache.tools.ant.taskdefs.Java.fork(Java.java:732) at org.apache.tools.ant.taskdefs.Java.executeJava(Java.java:171) at org.apache.tools.ant.taskdefs.Java.execute(Java.java:84) at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275) at org.apache.tools.ant.Task.perform(Task.java:364) at org.apache.tools.ant.taskdefs.Sequential.execute(Sequential.java:64) at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275) at org.apache.tools.ant.Task.perform(Task.java:364) at org.apache.tools.ant.taskdefs.MacroInstance.execute(MacroInstance.java:378) at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275) at org.apache.tools.ant.Task.perform(Task.java:364) at org.apache.tools.ant.Target.execute(Target.java:341) at org.apache.tools.ant.Target.performTasks(Target.java:369) at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1216) at org.apache.tools.ant.Project.executeTarget(Project.java:1185) at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:40) at org.apache.tools.ant.Project.executeTargets(Project.java:1068) at org.apache.tools.ant.module.bridge.impl.BridgeImpl.run(BridgeImpl.java:240) at org.apache.tools.ant.module.run.TargetExecutor.run(TargetExecutor.java:293) at org.netbeans.core.execution.RunClassThread.run(RunClassThread.java:131)
thank you in advance,
sahar

Hi guys,
I find how to track this leaking points or to make sure where they are coming from (from JDBC connections? or generating Many objects ? or your program really needs a big heap memory to run! and there is nothing wrong with the program).

1) to find in which part of code (or thread) it starts to eat memory use this link to download YourKit java profil:
http://www.yourkit.com/download/index.jsp
(I have tried many software but this is the best: 0) its free! 1) starts outomatically you just need to download it! 2) has a very rich documentation you can have look at: http://www.yourkit.com/docs/80/help/memory_telemetry.jsp )

2)to make sure if it is from your connections or something else, (if you are using mySQL) download mysql-gui-tool from :
http://dev.mysql.com/get/Downloads/MySQLGUITools/mysql-gui-tools-5.0-r17-win32.msi/from/pick?file=Downloads/MySQLGUITools/mysql-gui-tools-5.0-r17-win32.msi&mirror=pick&file=Downloads/MySQLGUITools/mysql-gui-tools-5.0-r17-win32.msi&mirror=pick#mirrors
this will help you to see how many connections you have at the time. what you need is to make a connection to your data base in MSQL ADMINISTRATOR. and then go to server connections. now go to your IDE and run your Java program. while running you can see how many connections you have in the TREAD tab of your "server connections" in MSQL ADMINISTRATOR.

So if there are normal amount of connections its not JDBC connections which are consuming the memory!

3) If you think nothings wrong with your code and it just nedd more memory there are two ways to change the setting: 1) Command prompt and 2) your IDE. I Killed my self but couldnt do it by command way .
IDE way is sooo easy just go to netbeans click right on the project name > properties>run and then in "VM options" text box copy "-Xms32m -Xmx128m" and its done!!

and thats all I experienced!
If any one have any other suggestion is welcomed!

dear fiend,
I have this code:
ResultSet rows = booktrading.BookBuyerAgent.GApoolDB1.selectGroup(agentNumber,buyerOrseller); if((rows.next())&&(matingCounter<matinPoolSize)) { rows.next(); ////////second chrom///////// Id2 = rows.getInt("id"); Price2 = rows.getDouble("price"); Quality2 = rows.getDouble("quality"); Deadline2 = rows.getDouble("deadline"); UtilityValue2 = rows.getDouble("UtilityValue"); if(buyerOrseller.equalsIgnoreCase("seller")){ AgentNumber2 = rows.getInt("sellerNumber"); }else if(buyerOrseller.equalsIgnoreCase("buyer")){ AgentNumber2 = rows.getInt("buyerNumber"); } System.out.println("Selection2: "+Price2+", "+Quality2+", "+Deadline2+", "+UtilityValue2+", "+AgentNumber2+", "+buyerOrseller); }// end of (rows.next())&&(matingCounter<matinPoolSize

and it throws me this error:
java.sql.SQLException: After end of result set at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:910) at com.mysql.jdbc.ResultSet.checkRowPos(ResultSet.java:726) at com.mysql.jdbc.UpdatableResultSet.checkRowPos(UpdatableResultSet.java:246) at com.mysql.jdbc.ResultSet.getInt(ResultSet.java:2617) at com.mysql.jdbc.ResultSet.getInt(ResultSet.java:2749) at GA.Selection.Tournament(Selection.java:70) at GA.GAalgorithm.GAalgorithm(GAalgorithm.java:68) at GA.NewMain.main(NewMain.java:37) java.sql.SQLException: Illegal operation on empty result set. at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:910) at com.mysql.jdbc.ResultSet.checkRowPos(ResultSet.java:713) at com.mysql.jdbc.ResultSet.getStringInternal(ResultSet.java:5624) at com.mysql.jdbc.ResultSet.getString(ResultSet.java:5544) at com.mysql.jdbc.ResultSet.getDoubleInternal(ResultSet.java:2406) at com.mysql.jdbc.ResultSet.getDouble(ResultSet.java:2367) at com.mysql.jdbc.ResultSet.getDouble(ResultSet.java:2385) at GA.Crossover.TowPoint(Crossover.java:81) at GA.GAalgorithm.GAalgorithm(GAalgorithm.java:70) at GA.NewMain.main(NewMain.java:37)
As I find this error should happen when the cursor of resultset is after the last row!
So to avoid this I have if(rows.next())
but how it still throws me this error?

Thank you in advance,
Sahar.

Dear friends,
I have a table with column titles as: (id, price,quality,deadline,UtilityValue,sellerNumber) which Id is an AUTO_INCREMENT!
now I want to copey this table to another table with the exact same column titles. till here every thing is ok! but I DONT want to copy the id field. what I want is that I copy the data of each row except id which should be filled AUTO_INCREMENTAly.
so I write below code:

pstmt = con.prepareStatement("INSERT INTO sellerGApool SELECT price,quality,deadline,UtilityValue,sellerNumber FROM newSellerGApool"+" where sellerNumber=?");

and I get this error:
java.sql.SQLException: Column count doesn't match value count at row 1 at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:946) SQLException: Column count doesn't match value count at row 1 at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2985) at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1631) at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1723) at com.mysql.jdbc.Connection.execSQL(Connection.java:3283) at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1332) at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1604) at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1519) at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1504) at GA.NewGApoolDB.CopyFromNewGApoolDBToGApoolDB(NewGApoolDB.java:594) at GA.GAalgorithm.TransferGAdbToNewGAdb(GAalgorithm.java:150) at GA.GAalgorithm.GAalgorithm(GAalgorithm.java:76) at GA.NewMain.main(NewMain.java:37)

I guess it error is related to the id column which I didn't mentioned in insert into query. Am I right? If yes Do you know how can I correct it?
Thank you sooo much!
SAhar.

Dear,
I have a table and I want to retrive some data from this table. I want them to be sorted so I have this snippet code:
query.append("select * from buyerGApool").append(" where buyerNumber=?").append(" order by UtilityValue");
now I want to know after that I retrived this information from table.
the data in the table is also sorted?
Thankyou, beforehand,
Sahar.

Dear friends,
I have a java project and it executes rightly. But, when I put my code inside of a loop to execute it several times(e.g. 20 times) after some rounds it throws me this error:
Warning: No mapping found for expired timer
As this project is a big one and I don't know in which line this error is happening I cant copy the code here.
So, Can you tell me when usually this error happens? or probably what can cause this sort of problems? or how can I find where in my code this is happening?

Thanks a lot!
Sahar.

Dear friends,
I need to code a formula which contains Natural logarithm and "e" power 3 for example. by e I mean the transcendental number which is around 2.71 ... .
Is there any constant in java as "e" or no?
Is there any function that can calculates Ln (natural logarithm)?
do you know any source that can help me?
Thank you so much,
Sahar

Dear friends,
Is there any equivalent for GOTO and LABLE in java? if not is there any other statement or command or keyword which I can use? (I searched but Icouldnt find any clear answer)
I need my program to jump from a method to an specific line in a class! Is that even possible?

Thank you so much,
Sahar.