attempt to fix a memory leak

twitter_techsupportgore_bot/nbproject/build-impl.xml

@@ -19,7 +19,7 @@ is divided into following sections:
   - cleanup
 
         -->
-<project xmlns:j2seproject1="http://www.netbeans.org/ns/j2se-project/1" xmlns:j2seproject3="http://www.netbeans.org/ns/j2se-project/3" xmlns:jaxrpc="http://www.netbeans.org/ns/j2se-project/jax-rpc" basedir=".." default="default" name="twitter_techsupportgore_bot-impl">
+<project xmlns:j2seproject1="http://www.netbeans.org/ns/j2se-project/1" xmlns:j2seproject3="http://www.netbeans.org/ns/j2se-project/3" xmlns:jaxrpc="http://www.netbeans.org/ns/j2se-project/jax-rpc" basedir=".." default="default" name="TwitterTechSupportGoreBot-impl">
     <fail message="Please build using Ant 1.8.0 or higher.">
         <condition>
             <not>
@@ -450,7 +450,7 @@ is divided into following sections:
                     </fileset>
                 </union>
                 <taskdef classname="org.testng.TestNGAntTask" classpath="${run.test.classpath}" name="testng"/>
-                <testng classfilesetref="test.set" failureProperty="tests.failed" listeners="org.testng.reporters.VerboseReporter" methods="${testng.methods.arg}" mode="${testng.mode}" outputdir="${build.test.results.dir}" suitename="twitter_techsupportgore_bot" testname="TestNG tests" workingDir="${work.dir}">
+                <testng classfilesetref="test.set" failureProperty="tests.failed" listeners="org.testng.reporters.VerboseReporter" methods="${testng.methods.arg}" mode="${testng.mode}" outputdir="${build.test.results.dir}" suitename="TwitterTechSupportGoreBot" testname="TestNG tests" workingDir="${work.dir}">
                     <xmlfileset dir="${build.test.classes.dir}" includes="@{testincludes}"/>
                     <propertyset>
                         <propertyref prefix="test-sys-prop."/>
@@ -601,7 +601,7 @@ is divided into following sections:
                 <condition else="-testclass @{testClass}" property="test.class.or.method" value="-methods @{testClass}.@{testMethod}">
                     <isset property="test.method"/>
                 </condition>
-                <condition else="-suitename twitter_techsupportgore_bot -testname @{testClass} ${test.class.or.method}" property="testng.cmd.args" value="@{testClass}">
+                <condition else="-suitename TwitterTechSupportGoreBot -testname @{testClass} ${test.class.or.method}" property="testng.cmd.args" value="@{testClass}">
                     <matches pattern=".*\.xml" string="@{testClass}"/>
                 </condition>
                 <delete dir="${build.test.results.dir}" quiet="true"/>
@@ -893,7 +893,7 @@ is divided into following sections:
         <delete file="${built-jar.properties}" quiet="true"/>
     </target>
     <target if="already.built.jar.${basedir}" name="-warn-already-built-jar">
-        <echo level="warn" message="Cycle detected: twitter_techsupportgore_bot was already built"/>
+        <echo level="warn" message="Cycle detected: TwitterTechSupportGoreBot was already built"/>
     </target>
     <target depends="init,-deps-jar-init" name="deps-jar" unless="no.deps">
         <mkdir dir="${build.dir}"/>
@@ -1378,7 +1378,7 @@ is divided into following sections:
         <delete file="${built-clean.properties}" quiet="true"/>
     </target>
     <target if="already.built.clean.${basedir}" name="-warn-already-built-clean">
-        <echo level="warn" message="Cycle detected: twitter_techsupportgore_bot was already built"/>
+        <echo level="warn" message="Cycle detected: TwitterTechSupportGoreBot was already built"/>
     </target>
     <target depends="init,-deps-clean-init" name="deps-clean" unless="no.deps">
         <mkdir dir="${build.dir}"/>

twitter_techsupportgore_bot/nbproject/genfiles.properties

@@ -3,6 +3,6 @@ build.xml.script.CRC32=9d82390b
 build.xml.stylesheet.CRC32=8064a381@1.80.1.48
 # This file is used by a NetBeans-based IDE to track changes in generated files such as build-impl.xml.
 # Do not edit this file. You may delete it but then the IDE will never regenerate such files for you.
-nbproject/build-impl.xml.data.CRC32=3d50692e
+nbproject/build-impl.xml.data.CRC32=3680b253
-nbproject/build-impl.xml.script.CRC32=e587a8e5
+nbproject/build-impl.xml.script.CRC32=ee04fc0e
 nbproject/build-impl.xml.stylesheet.CRC32=830a3534@1.80.1.48

twitter_techsupportgore_bot/src/TwitterTechSupportGoreBot/Hypervisor.java

@@ -32,6 +32,7 @@ import java.sql.DriverManager;
 import java.sql.PreparedStatement;
 import java.sql.ResultSet;
 import java.sql.SQLException;
+import java.util.Iterator;
 
 /**
  * Singleton Hypervisor. This is the object that does everything. So we want it
@@ -84,7 +85,7 @@ public class Hypervisor {
     /**
      * Connection to the SQLITE database.
      */
-    private final Connection connexion;
+    private Connection connexion;
 
     /**
      * RedditExtractor.
@@ -108,13 +109,15 @@ public class Hypervisor {
         this.workingDirectory = reader.getProperties("working_directory");
         setupTheBotDirectory();
         this.connexion = DriverManager.getConnection("jdbc:sqlite:"
-                + this.workingDirectory + File.separator + this.sqliteDatabase);
+                    + this.workingDirectory + File.separator
+                    + this.sqliteDatabase);
         this.myRedditExtractor = new RedditExtractor(subreddit);
         if ("Y".equals(reader.getProperties("clear_database"))) {
             clearDatabase();
         }
         this.maxLength = Integer.valueOf(reader.getProperties("max_text_length"));
         load();
+        this.connexion.close();
         System.out.println("[+] Hypervisor created successfully.");
     }
 
@@ -152,13 +155,16 @@ public class Hypervisor {
             InterruptedException {
         System.out.println("[+] Hypervisor is now running.");
         for (;;) {
+            this.connexion = DriverManager.getConnection("jdbc:sqlite:"
+                    + this.workingDirectory + File.separator
+                    + this.sqliteDatabase);
             for (RedditPost post : myRedditExtractor.getRedditPosts()) {
                 computeRedditPost(post);
             }
-            System.out.println("[*] Cleaning memory.");
+            this.connexion.close();
-            System.gc();
             System.out.println(
-                    "[*] Hypervisor is waiting for " + this.delay + " seconds.");
+                    "[*] Hypervisor is waiting for "
+                    + this.delay + " seconds.");
             Thread.sleep(this.delay * 1000);
         }
     }