0.1.0 - Initial class loading/manipulation code with examples console apps

Author: TeamworkGuy2

Diff for: CHANGELOG.md

@@ -0,0 +1,9 @@
+# Change Log
+All notable changes to this project will be documented in this file.
+This project does its best to adhere to [Semantic Versioning](http://semver.org/).
+
+
+--------
+###[0.1.0](N/A) - 2017-01-11
+#### Added
+* Initial versioning of existing code, including classfile loading/parsing, dynamic classfile modification, and runtime class loading.

Diff for: LICENSE

@@ -0,0 +1,22 @@
+The MIT License (MIT)
+
+Copyright (c) 2017 TeamworkGuy2
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+

Diff for: README.md

@@ -0,0 +1,28 @@
+ClassLoading
+==========
+version: 0.1.0
+
+Java class file parsing and manipulation library.
+Reference: [Java Virtual Machine Spec](http://docs.oracle.com/javase/specs/jvms/se8/html/index.html)
+
+###See `twg2.jbcm.main/`
+for example code and interactive command line tools.
+
+####`twg2.jbcm.classFormat`
+Contains implementation of the [class file format](http://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html)
+with related attributes and constant pool types.
+
+####`twg2.jbcm` and `twg2.jbcm.modify`
+Interfaces and utilities for searching and modifying class files.
+
+####`twg2.jbcm.opcode`
+Partial implementation of [Java instruction set opcodes](http://docs.oracle.com/javase/specs/jvms/se8/html/jvms-6.html#jvms-6.5).
+
+####`twg2.jbcm.dynamicModification`, `twg2.jbcm.parserExamples`
+Classes used by the example and test packages.
+
+####`twg2.jbcm.runtimeLoading`
+Runtime class loading.
+
+####`twg2.jbcm.main`
+Example console apps.

Diff for: bin/class_loading.jar

@@ -0,0 +1,42 @@
+package examples;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * @author TeamworkGuy2
+ * @since 2014-4-23
+ */
+public class ExampleMain implements Runnable {
+	private int num;
+
+
+	public ExampleMain() {
+		this.num = 20;
+	}
+
+
+	@Override
+	public void run() {
+		List<Integer> list = new ArrayList<Integer>();
+		series(num, 0, list);
+		System.out.print(list);
+	}
+
+
+	private void series(int count, int initial, List<Integer> values) {
+		int vn1 = values.size() > 0 ? values.get(values.size()-1) : 1;
+		int vn2 = values.size() > 1 ? values.get(values.size()-2) : 0;
+		values.add(vn1 + vn2);
+		if(count > 0) {
+			series(count-1, initial, values);
+		}
+	}
+
+
+	public static void main(String[] args) {
+		ExampleMain example = new ExampleMain();
+		example.run();
+	}
+
+}

Diff for: examples/ExampleMain.class

@@ -0,0 +1,11 @@
+{
+	"version" : "0.1.0",
+	"name" : "class-loading",
+	"description" : "Java class file parsing and manipulation",
+	"homepage" : "https://github.com/TeamworkGuy2/ClassLoading",
+	"license" : "MIT",
+	"main" : "./bin/class_loading.jar",
+	"dependencies" : {
+		"ecj-4.4M2" : "*"
+	}
+}

Diff for: examples/ExampleMain.java

@@ -0,0 +1,5 @@
+Run the following command to compile java files in the source\classLoading folder, if additional folders are added, add them to this command before the -d option.
+This folder is for various java files used to test dynamic reloading that cannot be part of the eclipse project's source/build path.
+Navigate to the classpath folder, then run the following command:
+
+"C:\Program Files\Java\jdk1.8.0_112\bin\javac" -sourcepath source -classpath C:\Users\TeamworkGuy2\Documents\Java\Projects\ClassLoading\res source\classLoading\*.java source\classLoading\base\*.java source\classLoading\load\*.java -d destination

Diff for: package-lib.json

@@ -0,0 +1,65 @@
+package classLoading;
+
+import java.util.ArrayList;
+
+import classLoading.base.WorkerInterface;
+
+public class ClassLoaded implements WorkerInterface {
+	private int id;
+	private ArrayList<Thread> threads = new ArrayList<Thread>();
+	private ArrayList<RunnableThing> objs = new ArrayList<RunnableThing>();
+
+	@Override
+	public void startThreads(int threadCount) {
+		Thread newT = null;
+		RunnableThing thing = null;
+		int sleep = 10;
+		for(int i = 0; i < threadCount; i++) {
+			thing = new RunnableThing();
+			newT = new Thread(thing);
+			newT.setName("runnable test " + id);
+			threads.add(newT);
+			objs.add(thing);
+			newT.start();
+			id++;
+		}
+		try {
+			Thread.sleep(sleep);
+		} catch (InterruptedException e) {
+			e.printStackTrace();
+		}
+		for(int i = 0; i < threadCount; i++) {
+			thing = objs.get(i);
+			thing.event(true, false);
+			synchronized(thing) {
+				thing.notify();
+			}
+		}
+		try {
+			Thread.sleep(sleep);
+		} catch (InterruptedException e) {
+			e.printStackTrace();
+		}
+		for(int i = 0; i < threadCount; i++) {
+			thing = objs.get(i);
+			thing.event(true, true);
+			synchronized(thing) {
+				thing.notify();
+			}
+		}
+		try {
+			Thread.sleep(sleep);
+		} catch (InterruptedException e) {
+			e.printStackTrace();
+		}
+		for(int i = 0; i < threadCount; i++) {
+			if(threads.get(i).isAlive()) {
+				System.out.println("Thread " + threads.get(i) + " (" + i + ") still alive");
+			}
+		}
+		threads.clear();
+		objs.clear();
+		id = 0;
+	}
+
+}

Diff for: res/build.txt

@@ -0,0 +1,30 @@
+package classLoading;
+
+import classLoading.SubReload;
+
+/** Reload test that is being used to test whether two version of the same named class can be loaded during
+ * a program's runtime.
+ * @author TeamworkGuy2
+ * @since 2013-7-20
+ */
+public class Reload implements Runnable {
+
+	public void callTest() {
+		SubReload r = new SubReload();
+		System.out.println("Reload.callTest(" + Settings.version + ") call: " + r.toString());
+	}
+
+
+	@Override
+	public void run() {
+		SubReload r = new SubReload();
+		System.out.println("Reload.run(" + Settings.version + ") call: " + r.toString());
+	}
+
+
+	public static final void main(String[] args) {
+		Reload a = new Reload();
+		a.callTest();
+	}
+
+}

Diff for: res/destination/classLoading/ClassLoaded.class

@@ -0,0 +1,47 @@
+package classLoading;
+
+import classLoading.base.TestInterface;
+
+public class RunnableThing implements TestInterface, Runnable {
+	TestThing thing = new TestThing();
+	int variable;
+	boolean printInfo;
+	boolean doExit;
+
+	@Override
+	public void run() {
+		variable++;
+		thing = new TestThing();
+		thing.printContextInfo();
+		synchronized(this) {
+			while(!doExit) {
+				try {
+					this.wait();
+				} catch (InterruptedException e) {
+					e.printStackTrace();
+				}
+				if(printInfo) {
+					printContextInfo();
+				}
+			}
+		}
+	}
+
+
+	public void event(boolean printInfo, boolean exit) {
+		synchronized(this) {
+			this.printInfo = printInfo;
+			this.doExit = exit;
+		}
+	}
+
+
+	@Override
+	public void printContextInfo() {
+		System.out.println("Thread: " + Thread.currentThread() + ", classloader: " + Thread.currentThread().getContextClassLoader());
+		synchronized(this) {
+			this.printInfo = false;
+		}
+	}
+
+}

Diff for: res/destination/classLoading/Reload.class

@@ -0,0 +1,10 @@
+package classLoading;
+
+/** Settings to use for the various dynamically loaded classes
+ * @author TeamworkGuy2
+ * @since 2013-7-23
+ */
+public class Settings {
+	public static String version = "vReload";
+
+}

Diff for: res/destination/classLoading/RunnableThing.class

@@ -0,0 +1,24 @@
+package classLoading;
+
+/** SubReload test that is being used to test class calling from multiple dynamically loaded calling classes.
+ * @author TeamworkGuy2
+ * @since 2013-7-20
+ */
+public class SubReload {
+
+	public void callTest() {
+		System.out.println("SubReload.callTest(" + Settings.version + ")");
+	}
+
+
+	public String toString() {
+		return "SubReload.toString(" + Settings.version + ")";
+	}
+
+
+	public static final void main(String[] args) {
+		SubReload a = new SubReload();
+		a.callTest();
+	}
+
+}

Diff for: res/destination/classLoading/Settings.class

@@ -0,0 +1,11 @@
+package classLoading;
+
+import classLoading.base.TestInterface;
+
+public class TestThing implements TestInterface {
+
+	@Override
+	public void printContextInfo() {
+		System.out.println("Test Thing: " + this + ", " + Thread.currentThread() + ", " + Thread.currentThread().getContextClassLoader());
+	}
+}

Diff for: res/destination/classLoading/SubReload.class

@@ -0,0 +1,19 @@
+package classLoading.base;
+
+/** Test of classloading and dynamically loading classes
+ * @author TeamworkGuy2
+ * @since 2013-7-12
+ */
+public class Test {
+
+	/* Careful this class relies on class files in a folder called "load" inside this class's folder
+	 */
+	public static void main(String[] args) throws InstantiationException, IllegalAccessException, ClassNotFoundException {
+		Class<?> clazz = Thread.currentThread().getContextClassLoader().loadClass("classLoading.ClassLoaded");
+		WorkerInterface load = (WorkerInterface)clazz.newInstance();
+		//ClassLoaded load = new ClassLoaded();
+		System.out.println("Test.Main: " + Thread.currentThread() + ", " + Thread.currentThread().getContextClassLoader());
+		load.startThreads(3);
+	}
+
+}

Diff for: res/destination/classLoading/TestThing.class

@@ -0,0 +1,7 @@
+package classLoading.base;
+
+public interface TestInterface {
+
+	public void printContextInfo();
+
+}

Diff for: res/destination/classLoading/base/Test.class

@@ -0,0 +1,11 @@
+package classLoading.base;
+
+/** Generic interface for casting dynamically loaded worker objects to
+ * @author TeamworkGuy2
+ * @since 2013-7-12
+ */
+public interface WorkerInterface {
+
+	public void startThreads(int threadCount);
+
+}