Initial commit (Tested from J_8 to J_21)

This commit is contained in:
Daniella 2024-06-28 22:40:55 +02:00
commit 4168f752a4
26 changed files with 1012 additions and 0 deletions

39
.gitignore vendored Normal file
View file

@ -0,0 +1,39 @@
.gradle
build/
!gradle/wrapper/gradle-wrapper.jar
!**/src/main/**/build/
!**/src/test/**/build/
### IntelliJ IDEA ###
.idea/
*.iws
*.iml
*.ipr
out/
!**/src/main/**/out/
!**/src/test/**/out/
### Eclipse ###
.apt_generated
.classpath
.factorypath
.project
.settings
.springBeans
.sts4-cache
bin/
!**/src/main/**/bin/
!**/src/test/**/bin/
### NetBeans ###
/nbproject/private/
/nbbuild/
/dist/
/nbdist/
/.nb-gradle/
### VS Code ###
.vscode/
### Mac OS ###
.DS_Store

15
build.gradle Normal file
View file

@ -0,0 +1,15 @@
plugins {
id 'java'
id 'maven-publish'
}
group = 'de.tudbut'
version = '1.0-SNAPSHOT'
repositories {
mavenCentral()
}
dependencies {
}

BIN
gradle/wrapper/gradle-wrapper.jar vendored Normal file

Binary file not shown.

View file

@ -0,0 +1,6 @@
#Fri Jun 28 19:18:18 CEST 2024
distributionUrl=https\://services.gradle.org/distributions/gradle-8.5-bin.zip
distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
zipStorePath=wrapper/dists
zipStoreBase=GRADLE_USER_HOME

234
gradlew vendored Executable file
View file

@ -0,0 +1,234 @@
#!/bin/sh
#
# Copyright © 2015-2021 the original authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
##############################################################################
#
# Gradle start up script for POSIX generated by Gradle.
#
# Important for running:
#
# (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
# noncompliant, but you have some other compliant shell such as ksh or
# bash, then to run this script, type that shell name before the whole
# command line, like:
#
# ksh Gradle
#
# Busybox and similar reduced shells will NOT work, because this script
# requires all of these POSIX shell features:
# * functions;
# * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
# «${var#prefix}», «${var%suffix}», and «$( cmd )»;
# * compound commands having a testable exit status, especially «case»;
# * various built-in commands including «command», «set», and «ulimit».
#
# Important for patching:
#
# (2) This script targets any POSIX shell, so it avoids extensions provided
# by Bash, Ksh, etc; in particular arrays are avoided.
#
# The "traditional" practice of packing multiple parameters into a
# space-separated string is a well documented source of bugs and security
# problems, so this is (mostly) avoided, by progressively accumulating
# options in "$@", and eventually passing that to Java.
#
# Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
# and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
# see the in-line comments for details.
#
# There are tweaks for specific operating systems such as AIX, CygWin,
# Darwin, MinGW, and NonStop.
#
# (3) This script is generated from the Groovy template
# https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
# within the Gradle project.
#
# You can find Gradle at https://github.com/gradle/gradle/.
#
##############################################################################
# Attempt to set APP_HOME
# Resolve links: $0 may be a link
app_path=$0
# Need this for daisy-chained symlinks.
while
APP_HOME=${app_path%"${app_path##*/}"} # leaves a trailing /; empty if no leading path
[ -h "$app_path" ]
do
ls=$( ls -ld "$app_path" )
link=${ls#*' -> '}
case $link in #(
/*) app_path=$link ;; #(
*) app_path=$APP_HOME$link ;;
esac
done
APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
APP_NAME="Gradle"
APP_BASE_NAME=${0##*/}
# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
# Use the maximum available, or set MAX_FD != -1 to use that value.
MAX_FD=maximum
warn () {
echo "$*"
} >&2
die () {
echo
echo "$*"
echo
exit 1
} >&2
# OS specific support (must be 'true' or 'false').
cygwin=false
msys=false
darwin=false
nonstop=false
case "$( uname )" in #(
CYGWIN* ) cygwin=true ;; #(
Darwin* ) darwin=true ;; #(
MSYS* | MINGW* ) msys=true ;; #(
NONSTOP* ) nonstop=true ;;
esac
CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
# Determine the Java command to use to start the JVM.
if [ -n "$JAVA_HOME" ] ; then
if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
# IBM's JDK on AIX uses strange locations for the executables
JAVACMD=$JAVA_HOME/jre/sh/java
else
JAVACMD=$JAVA_HOME/bin/java
fi
if [ ! -x "$JAVACMD" ] ; then
die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
else
JAVACMD=java
which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
# Increase the maximum file descriptors if we can.
if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
case $MAX_FD in #(
max*)
MAX_FD=$( ulimit -H -n ) ||
warn "Could not query maximum file descriptor limit"
esac
case $MAX_FD in #(
'' | soft) :;; #(
*)
ulimit -n "$MAX_FD" ||
warn "Could not set maximum file descriptor limit to $MAX_FD"
esac
fi
# Collect all arguments for the java command, stacking in reverse order:
# * args from the command line
# * the main class name
# * -classpath
# * -D...appname settings
# * --module-path (only if needed)
# * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
# For Cygwin or MSYS, switch paths to Windows format before running java
if "$cygwin" || "$msys" ; then
APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
JAVACMD=$( cygpath --unix "$JAVACMD" )
# Now convert the arguments - kludge to limit ourselves to /bin/sh
for arg do
if
case $arg in #(
-*) false ;; # don't mess with options #(
/?*) t=${arg#/} t=/${t%%/*} # looks like a POSIX filepath
[ -e "$t" ] ;; #(
*) false ;;
esac
then
arg=$( cygpath --path --ignore --mixed "$arg" )
fi
# Roll the args list around exactly as many times as the number of
# args, so each arg winds up back in the position where it started, but
# possibly modified.
#
# NB: a `for` loop captures its iteration list before it begins, so
# changing the positional parameters here affects neither the number of
# iterations, nor the values presented in `arg`.
shift # remove old arg
set -- "$@" "$arg" # push replacement arg
done
fi
# Collect all arguments for the java command;
# * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
# shell script including quotes and variable substitutions, so put them in
# double quotes to make sure that they get re-expanded; and
# * put everything else in single quotes, so that it's not re-expanded.
set -- \
"-Dorg.gradle.appname=$APP_BASE_NAME" \
-classpath "$CLASSPATH" \
org.gradle.wrapper.GradleWrapperMain \
"$@"
# Use "xargs" to parse quoted args.
#
# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
#
# In Bash we could simply go:
#
# readarray ARGS < <( xargs -n1 <<<"$var" ) &&
# set -- "${ARGS[@]}" "$@"
#
# but POSIX shell has neither arrays nor command substitution, so instead we
# post-process each arg (as a line of input to sed) to backslash-escape any
# character that might be a shell metacharacter, then use eval to reverse
# that process (while maintaining the separation between arguments), and wrap
# the whole thing up as a single "set" statement.
#
# This will of course break if any of these variables contains a newline or
# an unmatched quote.
#
eval "set -- $(
printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
xargs -n1 |
sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
tr '\n' ' '
)" '"$@"'
exec "$JAVACMD" "$@"

89
gradlew.bat vendored Normal file
View file

@ -0,0 +1,89 @@
@rem
@rem Copyright 2015 the original author or authors.
@rem
@rem Licensed under the Apache License, Version 2.0 (the "License");
@rem you may not use this file except in compliance with the License.
@rem You may obtain a copy of the License at
@rem
@rem https://www.apache.org/licenses/LICENSE-2.0
@rem
@rem Unless required by applicable law or agreed to in writing, software
@rem distributed under the License is distributed on an "AS IS" BASIS,
@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@rem See the License for the specific language governing permissions and
@rem limitations under the License.
@rem
@if "%DEBUG%" == "" @echo off
@rem ##########################################################################
@rem
@rem Gradle startup script for Windows
@rem
@rem ##########################################################################
@rem Set local scope for the variables with windows NT shell
if "%OS%"=="Windows_NT" setlocal
set DIRNAME=%~dp0
if "%DIRNAME%" == "" set DIRNAME=.
set APP_BASE_NAME=%~n0
set APP_HOME=%DIRNAME%
@rem Resolve any "." and ".." in APP_HOME to make it shorter.
for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
@rem Find java.exe
if defined JAVA_HOME goto findJavaFromJavaHome
set JAVA_EXE=java.exe
%JAVA_EXE% -version >NUL 2>&1
if "%ERRORLEVEL%" == "0" goto execute
echo.
echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.
goto fail
:findJavaFromJavaHome
set JAVA_HOME=%JAVA_HOME:"=%
set JAVA_EXE=%JAVA_HOME%/bin/java.exe
if exist "%JAVA_EXE%" goto execute
echo.
echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.
goto fail
:execute
@rem Setup the command line
set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
@rem Execute Gradle
"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
:end
@rem End local scope for the variables with windows NT shell
if "%ERRORLEVEL%"=="0" goto mainEnd
:fail
rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
rem the _cmd.exe /c_ return code!
if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
exit /b 1
:mainEnd
if "%OS%"=="Windows_NT" endlocal
:omega

2
settings.gradle Normal file
View file

@ -0,0 +1,2 @@
rootProject.name = 'darkreflection'

View file

@ -0,0 +1,32 @@
package de.tudbut.darkreflection;
import java.lang.reflect.AccessibleObject;
import static de.tudbut.darkreflection.UnsafeProvider.unsafe;
public class DarkAccessibleObject {
public static void makeAccessible(AccessibleObject object) {
if(object.isAccessible())
return;
try {
unsafe.putBoolean(object, unsafe.objectFieldOffset(AccessibleObject.class.getDeclaredField("override")), true);
if(!object.isAccessible())
throw new IllegalAccessException();
} catch (Throwable basicOverrideError) {
try {
unsafe.putBoolean(object, unsafe.objectFieldOffset(FakeAccessibleObject.class.getDeclaredFields()[0]), true);
if(!object.isAccessible())
throw new IllegalAccessException();
} catch (Throwable adaptedOverrideError) {
basicOverrideError.printStackTrace();
adaptedOverrideError.printStackTrace();
throw new AssertionError("This JVM does not support changing the override");
}
}
}
@SuppressWarnings("unused")
private static class FakeAccessibleObject {
boolean override;
}
}

View file

@ -0,0 +1,11 @@
package de.tudbut.darkreflection;
import de.tudbut.darkreflection.classes.IClassAccess;
// i have made it my life mission to make reflection unrestricted. i will not let jdk.internal.reflect.Reflection stop me.
public class DarkClass {
public static <T> IClassAccess<T> obtainAccess(Class<T> clazz) {
return Strategy.classStrategy.instance(clazz);
}
}

View file

@ -0,0 +1,28 @@
package de.tudbut.darkreflection;
import de.tudbut.darkreflection.fields.IFieldAccess;
import java.lang.reflect.Field;
import java.util.Arrays;
public class DarkField {
public static <T> IFieldAccess<T> obtainByField(Field f) {
return Strategy.reflectedFieldStrategy.instance(f);
}
public static <T> IFieldAccess<T> obtainByName(Class<?> owner, String name, boolean isStatic, Class<? extends T> type) {
return Strategy.fieldByNameStrategy.instance(owner, name, isStatic, type);
}
public static Field nameToField(Class<?> owner, String name) {
try {
// try the basic strategy first - it works often enough for this to be a speed advantage.
// this also prevents a StackOverflowError if we're using a ReflectionDataClass with a
// BasicOffsetGetter (like on some non-openjdk jvms)
return owner.getDeclaredField(name);
} catch (NoSuchFieldException e) {
return Arrays.stream(Strategy.classStrategy.instance(owner).getDeclaredFields()).filter(x -> x.getName().equals(name)).findAny().orElse(null);
}
}
}

View file

@ -0,0 +1,25 @@
package de.tudbut.darkreflection;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.Arrays;
public class DarkMethod {
public static Method instance(Class<?> owner, String name, Class<?>... args) {
try {
return owner.getDeclaredMethod(name, args);
} catch (NoSuchMethodException e) {
return Arrays.stream(DarkClass.obtainAccess(owner).getDeclaredMethods()).filter(x -> x.getName().equals(name) && Arrays.equals(x.getParameterTypes(), args)).findAny().orElse(null);
}
}
public static <T> T invoke(Method m, Object owner, Object... args) throws InvocationTargetException {
DarkAccessibleObject.makeAccessible(m);
try {
return (T) m.invoke(owner, args);
} catch (IllegalAccessException e) {
throw new RuntimeException(e);
}
}
}

View file

@ -0,0 +1,8 @@
package de.tudbut.darkreflection;
public class InvalidStrategyException extends RuntimeException {
public InvalidStrategyException() {}
public InvalidStrategyException(Throwable e) {
super(e);
}
}

View file

@ -0,0 +1,149 @@
package de.tudbut.darkreflection;
import de.tudbut.darkreflection.classes.*;
import de.tudbut.darkreflection.fields.AdaptedReflectionField;
import de.tudbut.darkreflection.fields.BasicReflectionField;
import de.tudbut.darkreflection.fields.IFieldAccess;
import de.tudbut.darkreflection.fields.UnsafeField;
import java.lang.reflect.AccessibleObject;
import java.lang.reflect.Field;
import java.util.Arrays;
import static de.tudbut.darkreflection.UnsafeProvider.offsetGetter;
// which strategy depends on which?
// FReflectionDataClass -> reflectionFieldStrategy
// FieldByName -> reflectedFieldStrategy
// FieldByName -> classStrategy
public class Strategy {
public static ClassStrategy classStrategy = ClassStrategy.Basic;
public static ReflectedFieldStrategy reflectedFieldStrategy = ReflectedFieldStrategy.Basic;
public static FieldByNameStrategy fieldByNameStrategy = FieldByNameStrategy.GetDeclaredField;
public static void detect(boolean log) {
for (ReflectedFieldStrategy value : ReflectedFieldStrategy.values()) {
try {
String s = "hi";
IFieldAccess<Object> field = value.instance(String.class.getDeclaredField("value"));
field.set(s, field.get("hi!"));
//noinspection ConstantValue
if(s.equals("hi!")) {
if(log)
System.out.println("Found working strategy for reflected fields: " + value.name());
reflectedFieldStrategy = value;
break;
}
} catch (NoSuchFieldException e) {
throw new Error("Please update DarkReflection or open an issue on it.", e);
} catch (InvalidStrategyException ignore) {}
}
for (ClassStrategy value : ClassStrategy.values()) {
try {
if(value.instance(AccessibleObject.class).getDeclaredFields().length >= 1) {
if(log)
System.out.println("Found working strategy for classes: " + value.name());
classStrategy = value;
break;
}
} catch (InvalidStrategyException e) {
e.printStackTrace();
}
}
for (FieldByNameStrategy value : FieldByNameStrategy.values()) {
try {
if(value.instance(AccessibleObject.class, "override", false, boolean.class) != null) {
if(log)
System.out.println("Found working strategy for fields by name: " + value.name());
fieldByNameStrategy = value;
break;
}
} catch (InvalidStrategyException ignore) {}
}
}
@SuppressWarnings("rawtypes")
public enum ClassStrategy {
Basic(BasicClass.class),
NativeGet(NativeGetClass.class),
;
private final Class<? extends IClassAccess> backend;
ClassStrategy(Class<? extends IClassAccess> backend) {
this.backend = backend;
}
public <T> IClassAccess<T> instance(Class<T> clazz) {
try {
return (IClassAccess<T>) backend.getConstructor(Class.class).newInstance(clazz);
} catch (Exception e) {
throw new InvalidStrategyException(e);
}
}
}
@SuppressWarnings("rawtypes")
public enum ReflectedFieldStrategy {
Basic(BasicReflectionField.class),
Adapted(AdaptedReflectionField.class),
Unsafe(UnsafeField.class),
;
private final Class<? extends IFieldAccess> backend;
ReflectedFieldStrategy(Class<? extends IFieldAccess> backend) {
this.backend = backend;
}
public <T> IFieldAccess<T> instance(Field f) {
try {
return (IFieldAccess<T>) backend.getConstructor(Field.class).newInstance(f);
} catch (Exception e) {
throw new InvalidStrategyException(e);
}
}
}
@SuppressWarnings("rawtypes")
public enum FieldByNameStrategy {
GetDeclaredField((owner, field, isStatic, type) -> {
try {
return reflectedFieldStrategy.instance(owner.getDeclaredField(field));
} catch (NoSuchFieldException e) {
return null;
}
}),
DarkReflection((owner, field, isStatic, type) -> {
try {
return reflectedFieldStrategy.instance(Arrays.stream(classStrategy.instance(owner).getDeclaredFields()).filter(x -> x.getName().equals(field)).findAny().orElseThrow(() -> new NoSuchFieldException(field)));
} catch (NoSuchFieldException e) {
return null;
}
}),
Unsafe((owner, field, isStatic, type) -> new UnsafeField<>(
isStatic ? offsetGetter.staticFieldBase(owner, field) : null,
isStatic ? offsetGetter.staticFieldOffset(owner, field) : offsetGetter.objectFieldOffset(owner, field), type)),
;
private final FieldByNameStrategyProvider backend;
FieldByNameStrategy(FieldByNameStrategyProvider backend) {
this.backend = backend;
}
public <T> IFieldAccess<T> instance(Class<?> owner, String field, boolean isStatic, Class<? extends T> type) {
try {
return (IFieldAccess<T>) backend.get(owner, field, isStatic, type);
} catch (Exception e) {
throw new InvalidStrategyException(e);
}
}
private interface FieldByNameStrategyProvider {
IFieldAccess get(Class<?> owner, String field, boolean isStatic, Class<?> type);
}
}
}

View file

@ -0,0 +1,34 @@
package de.tudbut.darkreflection;
import de.tudbut.darkreflection.unsafe.BasicOffsetGetter;
import de.tudbut.darkreflection.unsafe.IOffsetGetter;
import de.tudbut.darkreflection.unsafe.InternalUnsafeOffsetGetter;
import sun.misc.Unsafe;
import java.lang.reflect.Field;
public class UnsafeProvider {
public static final Unsafe unsafe;
static {
try {
Field f = Unsafe.class.getDeclaredField("theUnsafe");
f.setAccessible(true);
unsafe = (Unsafe) f.get(null);
} catch (Throwable e) {
throw new Error(e); // Don't recover.
}
}
public static IOffsetGetter offsetGetter;
static {
try {
Class<?> c = Class.forName("jdk.internal.misc.Unsafe");
c.getMethod("objectFieldOffset", Class.class, String.class);
Object o = DarkMethod.invoke(c.getMethod("getUnsafe"), null);
offsetGetter = new InternalUnsafeOffsetGetter(c, o);
} catch (Throwable e) {
offsetGetter = new BasicOffsetGetter();
}
}
}

View file

@ -0,0 +1,32 @@
package de.tudbut.darkreflection.classes;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
public class BasicClass<T> implements IClassAccess<T> {
private final Class<T> clazz;
public BasicClass(Class<T> clazz) {
this.clazz = clazz;
}
@Override
public Field[] getDeclaredFields() {
return clazz.getDeclaredFields();
}
@Override
public Method[] getDeclaredMethods() {
return clazz.getDeclaredMethods();
}
@Override
public Constructor<T>[] getDeclaredConstructors() {
return (Constructor<T>[]) clazz.getDeclaredConstructors();
}
@Override
public Class<T> getAccessedClass() {
return clazz;
}
}

View file

@ -0,0 +1,12 @@
package de.tudbut.darkreflection.classes;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
public interface IClassAccess<T> {
Field[] getDeclaredFields();
Method[] getDeclaredMethods();
Constructor<T>[] getDeclaredConstructors();
Class<T> getAccessedClass();
}

View file

@ -0,0 +1,56 @@
package de.tudbut.darkreflection.classes;
import de.tudbut.darkreflection.DarkMethod;
import de.tudbut.darkreflection.InvalidStrategyException;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
public class NativeGetClass<T> implements IClassAccess<T> {
private final Class<T> clazz;
private final Method getDeclaredFields0, getDeclaredMethods0, getDeclaredConstructors0;
public NativeGetClass(Class<T> clazz) {
this.clazz = clazz;
try {
getDeclaredFields0 = Class.class.getDeclaredMethod("getDeclaredFields0", boolean.class);
getDeclaredMethods0 = Class.class.getDeclaredMethod("getDeclaredMethods0", boolean.class);
getDeclaredConstructors0 = Class.class.getDeclaredMethod("getDeclaredFields0", boolean.class);
} catch (NoSuchMethodException e) {
throw new InvalidStrategyException(e);
}
}
@Override
public Field[] getDeclaredFields() {
try {
return DarkMethod.invoke(getDeclaredFields0, clazz, false);
} catch (InvocationTargetException e) {
throw new InvalidStrategyException(e);
}
}
@Override
public Method[] getDeclaredMethods() {
try {
return DarkMethod.invoke(getDeclaredMethods0, clazz, false);
} catch (InvocationTargetException e) {
throw new InvalidStrategyException(e);
}
}
@Override
public Constructor<T>[] getDeclaredConstructors() {
try {
return DarkMethod.invoke(getDeclaredConstructors0, clazz, false);
} catch (InvocationTargetException e) {
throw new InvalidStrategyException(e);
}
}
@Override
public Class<T> getAccessedClass() {
return clazz;
}
}

View file

@ -0,0 +1,17 @@
package de.tudbut.darkreflection.fields;
import de.tudbut.darkreflection.DarkAccessibleObject;
import java.lang.reflect.Field;
public class AdaptedReflectionField<T> extends ReflectionField<T> {
public AdaptedReflectionField(Field backend) {
super(backend);
}
@Override
protected void makeAccessible() {
DarkAccessibleObject.makeAccessible(backend);
}
}

View file

@ -0,0 +1,22 @@
package de.tudbut.darkreflection.fields;
import de.tudbut.darkreflection.InvalidStrategyException;
import java.lang.reflect.Field;
public class BasicReflectionField<T> extends ReflectionField<T> {
public BasicReflectionField(Field backend) {
super(backend);
}
@Override
protected void makeAccessible() {
try {
backend.setAccessible(true);
if(!backend.isAccessible())
throw new IllegalAccessException();
} catch (Exception e) {
throw new InvalidStrategyException();
}
}
}

View file

@ -0,0 +1,6 @@
package de.tudbut.darkreflection.fields;
public interface IFieldAccess<T> {
T get(Object owner);
void set(Object owner, T item);
}

View file

@ -0,0 +1,32 @@
package de.tudbut.darkreflection.fields;
import java.lang.reflect.Field;
public abstract class ReflectionField<T> implements IFieldAccess<T> {
protected final Field backend;
public ReflectionField(Field backend) {
this.backend = backend;
makeAccessible();
}
protected abstract void makeAccessible();
@Override
public T get(Object owner) {
try {
return (T) backend.get(owner);
} catch (IllegalAccessException e) {
throw new RuntimeException(e);
}
}
@Override
public void set(Object owner, T item) {
try {
backend.set(owner, item);
} catch (IllegalAccessException e) {
throw new RuntimeException(e);
}
}
}

View file

@ -0,0 +1,76 @@
package de.tudbut.darkreflection.fields;
import java.lang.reflect.Field;
import static de.tudbut.darkreflection.UnsafeProvider.unsafe;
public class UnsafeField<T> implements IFieldAccess<T> {
protected final Class<?> type;
protected Field backend;
protected Object o;
protected long offset = -1;
public UnsafeField(Field field) {
this.backend = field;
this.type = field.getType();
}
public UnsafeField(Object o, long offset, Class<? extends T> type) {
this.o = o;
this.offset = offset;
this.type = type;
}
@Override
public T get(Object owner) {
Object o = this.o == null ? (owner == null ? unsafe.staticFieldBase(backend) : owner) : this.o;
long offset = this.offset == -1 ? (owner == null ? unsafe.staticFieldOffset(backend) : unsafe.objectFieldOffset(backend)) : this.offset;
this.offset = offset;
if(type.isPrimitive()) {
if(type == int.class)
return (T) (Object) unsafe.getInt(o, offset);
if(type == boolean.class)
return (T) (Object) unsafe.getBoolean(o, offset);
if(type == byte.class)
return (T) (Object) unsafe.getByte(o, offset);
if(type == short.class)
return (T) (Object) unsafe.getShort(o, offset);
if(type == char.class)
return (T) (Object) unsafe.getChar(o, offset);
if(type == long.class)
return (T) (Object) unsafe.getLong(o, offset);
if(type == float.class)
return (T) (Object) unsafe.getFloat(o, offset);
if(type == double.class)
return (T) (Object) unsafe.getDouble(o, offset);
}
return (T) unsafe.getObject(o, offset);
}
@Override
public void set(Object owner, T item) {
Object o = this.o == null ? (owner == null ? unsafe.staticFieldBase(backend) : owner) : this.o;
long offset = this.offset == -1 ? (owner == null ? unsafe.staticFieldOffset(backend) : unsafe.objectFieldOffset(backend)) : this.offset;
this.offset = offset;
if(type.isPrimitive()) {
if(type == int.class)
unsafe.putInt(o, offset, (Integer) item);
else if(type == boolean.class)
unsafe.putBoolean(o, offset, (Boolean) item);
else if(type == byte.class)
unsafe.putByte(o, offset, (Byte) item);
else if(type == short.class)
unsafe.putShort(o, offset, (Short) item);
else if(type == char.class)
unsafe.putChar(o, offset, (Character) item);
else if(type == long.class)
unsafe.putLong(o, offset, (Long) item);
else if(type == float.class)
unsafe.putFloat(o, offset, (Float) item);
else if(type == double.class)
unsafe.putDouble(o, offset, (Double) item);
}
unsafe.putObject(o, offset, item);
}
}

View file

@ -0,0 +1,39 @@
package de.tudbut.darkreflection.unsafe;
import de.tudbut.darkreflection.DarkField;
import java.lang.reflect.Field;
import static de.tudbut.darkreflection.UnsafeProvider.unsafe;
public class BasicOffsetGetter implements IOffsetGetter {
@Override
public long objectFieldOffset(Field f) {
return unsafe.objectFieldOffset(f);
}
@Override
public long objectFieldOffset(Class<?> clazz, String name) {
return unsafe.objectFieldOffset(DarkField.nameToField(clazz, name));
}
@Override
public long staticFieldOffset(Field f) {
return unsafe.staticFieldOffset(f);
}
@Override
public long staticFieldOffset(Class<?> clazz, String name) {
return unsafe.staticFieldOffset(DarkField.nameToField(clazz, name));
}
@Override
public Object staticFieldBase(Field f) {
return unsafe.staticFieldBase(f);
}
@Override
public Object staticFieldBase(Class<?> clazz, String name) {
return unsafe.staticFieldBase(DarkField.nameToField(clazz, name));
}
}

View file

@ -0,0 +1,13 @@
package de.tudbut.darkreflection.unsafe;
import java.lang.reflect.Field;
public interface IOffsetGetter {
long objectFieldOffset(Field f);
long objectFieldOffset(Class<?> clazz, String name);
long staticFieldOffset(Field f);
long staticFieldOffset(Class<?> clazz, String name);
Object staticFieldBase(Field f);
Object staticFieldBase(Class<?> clazz, String name);
}

View file

@ -0,0 +1,26 @@
package de.tudbut.darkreflection.unsafe;
import de.tudbut.darkreflection.DarkMethod;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
public class InternalUnsafeOffsetGetter extends BasicOffsetGetter {
private final Method objectFieldOffset0;
private final Object iUnsafe;
public InternalUnsafeOffsetGetter(Class<?> iUnsafeClass, Object iUnsafe) throws NoSuchMethodException {
this.objectFieldOffset0 = iUnsafeClass.getMethod("objectFieldOffset", Class.class, String.class);
this.iUnsafe = iUnsafe;
}
@Override
public long objectFieldOffset(Class<?> clazz, String name) {
try {
return DarkMethod.invoke(objectFieldOffset0, iUnsafe, clazz, name);
} catch (InvocationTargetException e) {
throw new RuntimeException(e);
}
}
}

9
src/test/java/Test.java Normal file
View file

@ -0,0 +1,9 @@
import de.tudbut.darkreflection.DarkField;
import de.tudbut.darkreflection.Strategy;
public class Test {
public static void main(String[] args) {
Strategy.detect(true);
DarkField.obtainByName(ClassLoader.class, "parent", false, ClassLoader.class).set(ClassLoader.getSystemClassLoader(), null);
}
}