feat: major rework of obfuscation system

This commit is contained in:
zaaarf 2023-03-31 12:44:06 +02:00
parent 9900e370a7
commit d966e7a37b
No known key found for this signature in database
GPG key ID: 82240E075E31FA4C
7 changed files with 182 additions and 187 deletions

View file

@ -40,7 +40,7 @@ import static ftbsc.lll.processor.tools.JavaPoetUtils.*;
*/
@SupportedAnnotationTypes("ftbsc.lll.processor.annotations.Patch")
@SupportedSourceVersion(SourceVersion.RELEASE_8)
@SupportedOptions({"mappingsFile", "badPracticeWarnings", "anonymousClassWarning", "obfuscateInjectorMetadata"})
@SupportedOptions({"mappingsFile", "anonymousClassWarning", "obfuscateInjectorMetadata"})
public class LilleroProcessor extends AbstractProcessor {
/**
* A {@link Set} of {@link String}s that will contain the fully qualified names
@ -52,13 +52,7 @@ public class LilleroProcessor extends AbstractProcessor {
* The {@link ObfuscationMapper} used to convert classes and variables
* to their obfuscated equivalent. Will be null when no mapper is in use.
*/
private ObfuscationMapper mapper;
/**
* Whether the processor should issue warnings when compiling code adopting
* bad practices.
*/
public static boolean badPracticeWarnings = true;
private ObfuscationMapper mapper = null;
/**
* Whether the processor should issue warnings when compiling code anonymous
@ -108,9 +102,6 @@ public class LilleroProcessor extends AbstractProcessor {
this.mapper = new ObfuscationMapper(new BufferedReader(new InputStreamReader(targetStream,
StandardCharsets.UTF_8)).lines());
}
String warns = processingEnv.getOptions().get("badPracticeWarnings");
if(warns != null)
badPracticeWarnings = parseBooleanArg(warns);
String anonymousClassWarn = processingEnv.getOptions().get("anonymousClassWarning");
if(anonymousClassWarn != null)
anonymousClassWarning = parseBooleanArg(anonymousClassWarn);
@ -249,8 +240,15 @@ public class LilleroProcessor extends AbstractProcessor {
clazz.fqnObf, //use obf name, at runtime it will be obfuscated
clazz.elem == null ? 0 : mapModifiers(clazz.elem.getModifiers())
);
} else if(type == ProxyType.FIELD || type == ProxyType.METHOD)
appendMemberFinderDefinition(targetClass, proxyVar, null, null, constructorBuilder, this.processingEnv, this.mapper);
} else if(type == ProxyType.FIELD)
appendMemberFinderDefinition(
proxyVar,
null,
null,
constructorBuilder,
this.processingEnv,
this.mapper
);
}
//this will contain the classes to generate: the key is the class name
@ -316,7 +314,6 @@ public class LilleroProcessor extends AbstractProcessor {
VariableElement finder = finderCandidates.get(0);
matchedMethodFinders.add(finder);
appendMemberFinderDefinition(
targetClass,
finder,
tg,
targetAnn,

View file

@ -8,23 +8,17 @@ import ftbsc.lll.processor.annotations.Target;
import ftbsc.lll.processor.tools.containers.ClassContainer;
import ftbsc.lll.processor.tools.obfuscation.ObfuscationMapper;
import ftbsc.lll.proxies.ProxyType;
import ftbsc.lll.tools.DescriptorBuilder;
import javax.annotation.processing.ProcessingEnvironment;
import javax.lang.model.element.Element;
import javax.lang.model.element.ExecutableElement;
import javax.lang.model.element.Modifier;
import javax.lang.model.element.VariableElement;
import javax.lang.model.type.MirroredTypeException;
import javax.lang.model.type.TypeMirror;
import javax.lang.model.element.*;
import javax.lang.model.type.*;
import java.lang.annotation.Annotation;
import java.util.Collection;
import java.util.List;
import java.util.function.Function;
import java.util.stream.Collectors;
import static ftbsc.lll.processor.tools.JavaPoetUtils.descriptorFromExecutableElement;
import static ftbsc.lll.processor.tools.JavaPoetUtils.descriptorFromType;
/**
* Collection of AST-related static utils that didn't really fit into the main class.
*/
@ -111,12 +105,129 @@ public class ASTUtils {
T ann, Function<T, Class<?>> classFunction, ProcessingEnvironment env) {
try {
String fqn = classFunction.apply(ann).getCanonicalName();
if(fqn == null)
fqn = "";
return env.getElementUtils().getTypeElement(fqn).asType();
} catch(MirroredTypeException e) {
return e.getTypeMirror();
}
}
/**
* Gets the internal name from an {@link Element}.
* @param elem the {@link Element} in question
* @param env the {@link ProcessingEnvironment} to perform the operation in
* @return the internal name at compile time, or null if it wasn't a qualifiable
* @since 0.5.1
*/
public static String internalNameFromElement(Element elem, ProcessingEnvironment env) {
//needed to actually turn elem into a TypeVariable, find it ignoring generics
elem = env.getElementUtils().getTypeElement(elem.asType().toString().split("<")[0]);
StringBuilder fqnBuilder = new StringBuilder();
while(elem.getEnclosingElement() != null && elem.getEnclosingElement().getKind() != ElementKind.PACKAGE) {
fqnBuilder
.insert(0, elem.getSimpleName().toString())
.insert(0, "$");
elem = elem.getEnclosingElement();
}
return fqnBuilder.insert(0, elem.asType().toString()).toString();
}
/**
* Gets the descriptor from an {@link Element}.
* In particular, it will ensure to conver the internal class name to the
* one used at compile time
* @param elem the {@link Element} in question
* @param env the {@link ProcessingEnvironment} to perform the operation in
* @return the descriptor
* @since 0.5.1
*/
public static String descriptorFromElement(Element elem, ProcessingEnvironment env) {
if(elem instanceof ExecutableElement)
return descriptorFromExecutableElement((ExecutableElement) elem, env);
TypeMirror tk = elem.asType();
int arrayLevel = 0;
while(tk.getKind() == TypeKind.ARRAY) {
tk = ((ArrayType) tk).getComponentType();
arrayLevel++;
}
if(tk.getKind() != TypeKind.DECLARED)
return descriptorFromType(elem.asType(), env);
return DescriptorBuilder.nameToDescriptor(internalNameFromElement(elem, env), arrayLevel);
}
/**
* Builds a type descriptor from the given {@link TypeMirror}.
* @param t the {@link TypeMirror} representing the desired type
* @param env the {@link ProcessingEnvironment} to perform the operation in
* @return a {@link String} containing the relevant descriptor
*/
public static String descriptorFromType(TypeMirror t, ProcessingEnvironment env) {
StringBuilder desc = new StringBuilder();
//add array brackets
while(t.getKind() == TypeKind.ARRAY) {
desc.append("[");
t = ((ArrayType) t).getComponentType();
}
if(t.getKind() == TypeKind.TYPEVAR)
t = ((TypeVariable) t).getUpperBound();
if(t.getKind() == TypeKind.DECLARED)
return descriptorFromElement(env.getTypeUtils().asElement(t), env);
switch(t.getKind()) {
case BOOLEAN:
desc.append("Z");
break;
case CHAR:
desc.append("C");
break;
case BYTE:
desc.append("B");
break;
case SHORT:
desc.append("S");
break;
case INT:
desc.append("I");
break;
case FLOAT:
desc.append("F");
break;
case LONG:
desc.append("J");
break;
case DOUBLE:
desc.append("D");
break;
case VOID:
desc.append("V");
break;
}
return desc.toString();
}
/**
* Builds a method descriptor from the given {@link ExecutableElement}.
* @param m the {@link ExecutableElement} for the method
* @param env the {@link ProcessingEnvironment} to perform the operation in
* @return a {@link String} containing the relevant descriptor
*/
public static String descriptorFromExecutableElement(ExecutableElement m, ProcessingEnvironment env) {
StringBuilder methodSignature = new StringBuilder();
methodSignature.append("(");
m.getParameters().forEach(p -> methodSignature.append(descriptorFromType(p.asType(), env)));
methodSignature.append(")");
methodSignature.append(descriptorFromType(m.getReturnType(), env));
return methodSignature.toString();
}
/**
* Finds the class name and maps it to the correct format.
* @param name the fully qualified name of the class to convert
@ -156,12 +267,15 @@ public class ASTUtils {
* @param descr the descriptor to search for, or null if it's not a method
* @param strict whether to perform lookup in strict mode (see {@link Target#strict()} for more information)
* @param field whether the member being searched is a field
* @param env the {@link ProcessingEnvironment} to perform the operation in
* @return the desired member, if it exists
* @throws AmbiguousDefinitionException if it finds more than one candidate
* @throws TargetNotFoundException if it finds no valid candidate
* @since 0.3.0
*/
public static Element findMember(ClassContainer parent, String name, String descr, boolean strict, boolean field) {
public static Element findMember(
ClassContainer parent, String name, String descr,
boolean strict, boolean field, ProcessingEnvironment env) {
if(parent.elem == null)
throw new TargetNotFoundException("parent class", parent.fqn);
//try to find by name
@ -185,14 +299,14 @@ public class ASTUtils {
if(field) {
//fields can verify the signature for extra safety
//but there can only be 1 field with a given name
if(!descriptorFromType(candidates.get(0).asType()).equals(descr))
if(!descriptorFromElement(candidates.get(0), env).equals(descr))
throw new TargetNotFoundException("field", String.format("%s with descriptor %s", name, descr), parent.fqn);
} else {
candidates = candidates.stream()
.map(e -> (ExecutableElement) e)
.filter(strict
? c -> descr.equals(descriptorFromExecutableElement(c))
: c -> descr.split("\\)")[0].equalsIgnoreCase(descriptorFromExecutableElement(c).split("\\)")[0])
? c -> descr.equals(descriptorFromExecutableElement(c, env))
: c -> descr.split("\\)")[0].equalsIgnoreCase(descriptorFromExecutableElement(c, env).split("\\)")[0])
).collect(Collectors.toList());
}
if(candidates.size() == 0)

View file

@ -10,14 +10,12 @@ import ftbsc.lll.processor.tools.obfuscation.ObfuscationMapper;
import ftbsc.lll.proxies.ProxyType;
import ftbsc.lll.proxies.impl.FieldProxy;
import ftbsc.lll.proxies.impl.MethodProxy;
import ftbsc.lll.tools.DescriptorBuilder;
import javax.annotation.processing.ProcessingEnvironment;
import javax.lang.model.element.Element;
import javax.lang.model.element.ExecutableElement;
import javax.lang.model.element.Modifier;
import javax.lang.model.element.VariableElement;
import javax.lang.model.type.TypeMirror;
import java.util.Collection;
import java.util.HashSet;
@ -43,70 +41,8 @@ public class JavaPoetUtils {
.build();
}
/**
* Builds a type descriptor from the given {@link TypeName}.
* @param type the {@link TypeName} representing the desired type
* @return a {@link String} containing the relevant descriptor
*/
public static String descriptorFromType(TypeName type) {
StringBuilder desc = new StringBuilder();
//add array brackets
while(type instanceof ArrayTypeName) {
desc.append("[");
type = ((ArrayTypeName) type).componentType;
}
if(type instanceof ClassName || type instanceof ParameterizedTypeName) {
ClassName var = type instanceof ParameterizedTypeName ? ((ParameterizedTypeName) type).rawType : (ClassName) type;
desc.append(DescriptorBuilder.nameToDescriptor(var.canonicalName(), 0));
} else {
if(TypeName.BOOLEAN.equals(type))
desc.append("Z");
else if(TypeName.CHAR.equals(type))
desc.append("C");
else if(TypeName.BYTE.equals(type))
desc.append("B");
else if(TypeName.SHORT.equals(type))
desc.append("S");
else if(TypeName.INT.equals(type))
desc.append("I");
else if(TypeName.FLOAT.equals(type))
desc.append("F");
else if(TypeName.LONG.equals(type))
desc.append("J");
else if(TypeName.DOUBLE.equals(type))
desc.append("D");
else if(TypeName.VOID.equals(type))
desc.append("V");
}
return desc.toString();
}
/**
* Builds a type descriptor from the given {@link TypeMirror}.
* @param t the {@link TypeMirror} representing the desired type
* @return a {@link String} containing the relevant descriptor
*/
public static String descriptorFromType(TypeMirror t) {
return descriptorFromType(TypeName.get(t));
}
/**
* Builds a method descriptor from the given {@link ExecutableElement}.
* @param m the {@link ExecutableElement} for the method
* @return a {@link String} containing the relevant descriptor
*/
public static String descriptorFromExecutableElement(ExecutableElement m) {
StringBuilder methodSignature = new StringBuilder();
methodSignature.append("(");
m.getParameters().forEach(p -> methodSignature.append(descriptorFromType(p.asType())));
methodSignature.append(")");
methodSignature.append(descriptorFromType(m.getReturnType()));
return methodSignature.toString();
}
/**
* Appends to a given {@link MethodSpec.Builder} definitions for a proxy.
* @param fallback the {@link ClassContainer} to fall back on
* @param var the {@link VariableElement} representing the proxy
* @param stub the stub {@link ExecutableElement} if present or relevant, null otherwise
* @param t the {@link Target} relevant to this finder if present or relevant, null otherwise
@ -116,7 +52,7 @@ public class JavaPoetUtils {
* @since 0.5.0
*/
public static void appendMemberFinderDefinition(
ClassContainer fallback, VariableElement var, ExecutableElement stub, Target t,
VariableElement var, ExecutableElement stub, Target t,
MethodSpec.Builder con, ProcessingEnvironment env, ObfuscationMapper mapper) {
ProxyType type = getProxyType(var);
if(type != ProxyType.METHOD && type != ProxyType.FIELD)

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@ -13,8 +13,7 @@ import java.lang.annotation.Annotation;
import java.util.Arrays;
import java.util.function.Function;
import static ftbsc.lll.processor.tools.ASTUtils.findClassName;
import static ftbsc.lll.processor.tools.ASTUtils.getTypeFromAnnotation;
import static ftbsc.lll.processor.tools.ASTUtils.*;
/**
* Container for information about a class.
@ -49,14 +48,17 @@ public class ClassContainer {
*/
public ClassContainer(String fqn, String[] innerNames, ProcessingEnvironment env, ObfuscationMapper mapper) {
//find and validate
Element elem = env.getElementUtils().getTypeElement(fqn); //use unobfuscated name
Element elem = env.getElementUtils().getTypeElement(fqn);
if(elem == null)
throw new TargetNotFoundException("class", fqn);
StringBuilder fqnBuilder = new StringBuilder(internalNameFromElement(elem, env));
if(innerNames != null) {
StringBuilder newFQN = new StringBuilder(fqn);
for(String inner : innerNames) {
newFQN.append("$").append(inner);
if(inner == null) continue;
fqnBuilder.append("$").append(inner);
try {
int anonClassCounter = Integer.parseInt(inner);
//anonymous classes cannot be validated!
@ -65,7 +67,7 @@ public class ClassContainer {
Diagnostic.Kind.WARNING,
String.format(
"Anonymous classes cannot be verified by the processor. The existence of %s$%s is not guaranteed!",
fqn, anonClassCounter
fqnBuilder, anonClassCounter
)
);
elem = null;
@ -82,8 +84,9 @@ public class ClassContainer {
if(elem == null)
throw new TargetNotFoundException("class", inner);
}
this.fqn = newFQN.toString();
} else this.fqn = fqn;
}
this.fqn = fqnBuilder.toString();
this.fqnObf = findClassName(this.fqn, mapper);
this.elem = elem;
}

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@ -12,8 +12,7 @@ import javax.lang.model.type.TypeKind;
import javax.lang.model.type.TypeMirror;
import static ftbsc.lll.processor.tools.ASTUtils.*;
import static ftbsc.lll.processor.tools.JavaPoetUtils.descriptorFromExecutableElement;
import static ftbsc.lll.processor.tools.JavaPoetUtils.descriptorFromType;
import static ftbsc.lll.processor.tools.ASTUtils.descriptorFromType;
/**
* Container for information about a field.
@ -45,8 +44,6 @@ public class FieldContainer {
/**
* The {@link ClassContainer} representing the parent of this field.
* May be null if the parent is a class type that can not be checked
* at processing time (such as an anonymous class)
*/
public final ClassContainer parent;
@ -62,9 +59,12 @@ public class FieldContainer {
* @param parent the {@link ClassContainer} representing the parent
* @param name the fully-qualified name of the target field
* @param descriptor the descriptor of the target field, may be null for verifiable fields
* @param env the {@link ProcessingEnvironment} to perform the operation in
* @param mapper the {@link ObfuscationMapper} to be used, may be null
*/
public FieldContainer(ClassContainer parent, String name, String descriptor, ObfuscationMapper mapper) {
public FieldContainer(
ClassContainer parent, String name, String descriptor,
ProcessingEnvironment env, ObfuscationMapper mapper) {
this.parent = parent;
if(parent.elem == null) { //unverified
if(descriptor == null)
@ -72,13 +72,12 @@ public class FieldContainer {
this.elem = null;
this.name = name;
this.descriptor = descriptor;
this.descriptorObf = mapper == null ? this.descriptor : mapper.obfuscateType(Type.getType(this.descriptor)).getDescriptor();
} else {
this.elem = (VariableElement) findMember(parent, name, descriptor, descriptor != null, true);
this.elem = (VariableElement) findMember(parent, name, descriptor, descriptor != null, true, env);
this.name = this.elem.getSimpleName().toString();
this.descriptor = descriptorFromType(this.elem.asType());
this.descriptorObf = mapper == null ? this.descriptor : mapper.obfuscateType(Type.getType(this.descriptor)).getDescriptor();
this.descriptor = descriptorFromElement(this.elem, env);
}
this.descriptorObf = mapper == null ? this.descriptor : mapper.obfuscateType(Type.getType(this.descriptor)).getDescriptor();
this.nameObf = findMemberName(parent.fqnObf, this.name, null, mapper);
}
@ -104,20 +103,17 @@ public class FieldContainer {
String name = f.name().equals("") ? finder.getSimpleName().toString() : f.name();
String descriptor;
TypeMirror fieldType = getTypeFromAnnotation(f, Find::type, env);
if(fieldType.toString().equals("java.lang.Object"))
if(fieldType.toString().equals("java.lang.Object")) {
descriptor = null;
else {
if(fieldType.getKind() == TypeKind.DECLARED)
} else {
if(fieldType.getKind() != TypeKind.VOID && !fieldType.getKind().isPrimitive())
descriptor = //jank af but this is temporary anyway
"L" + new ClassContainer(
fieldType.toString(),
f.typeInner().equals("") ? null : f.typeInner().split("//$"),
env,
mapper
).fqn.replace('.', '/') + ";";
else descriptor = descriptorFromType(fieldType);
"L" + ClassContainer.from(
f, Find::type, f.typeInner(), env, mapper
).fqnObf.replace('.', '/') + ";";
else descriptor = descriptorFromType(fieldType, env);
}
return new FieldContainer(parent, name, descriptor, mapper);
return new FieldContainer(parent, name, descriptor, env, mapper);
}
}

View file

@ -2,7 +2,6 @@ package ftbsc.lll.processor.tools.containers;
import ftbsc.lll.exceptions.AmbiguousDefinitionException;
import ftbsc.lll.exceptions.TargetNotFoundException;
import ftbsc.lll.processor.LilleroProcessor;
import ftbsc.lll.processor.annotations.Find;
import ftbsc.lll.processor.annotations.Patch;
import ftbsc.lll.processor.annotations.Target;
@ -10,11 +9,8 @@ import ftbsc.lll.processor.tools.obfuscation.ObfuscationMapper;
import javax.annotation.processing.ProcessingEnvironment;
import javax.lang.model.element.ExecutableElement;
import javax.tools.Diagnostic;
import static ftbsc.lll.processor.tools.ASTUtils.findMember;
import static ftbsc.lll.processor.tools.ASTUtils.findMemberName;
import static ftbsc.lll.processor.tools.JavaPoetUtils.descriptorFromExecutableElement;
import static ftbsc.lll.processor.tools.ASTUtils.*;
/**
* Container for information about a method.
@ -46,8 +42,6 @@ public class MethodContainer {
/**
* The {@link ClassContainer} representing the parent of this method.
* May be null if the parent is a class type that can not be checked
* at processing time (such as an anonymous class)
*/
public final ClassContainer parent;
@ -64,9 +58,12 @@ public class MethodContainer {
* @param name the fully-qualified name of the target method
* @param descriptor the descriptor of the target method
* @param strict whether the matching should be strict (see {@link Target#strict()} for more info).
* @param env the {@link ProcessingEnvironment} to perform the operation in
* @param mapper the {@link ObfuscationMapper} to be used, may be null
*/
public MethodContainer(ClassContainer parent, String name, String descriptor, boolean strict, ObfuscationMapper mapper) {
public MethodContainer(
ClassContainer parent, String name, String descriptor,
boolean strict, ProcessingEnvironment env, ObfuscationMapper mapper) {
this.parent = parent;
if(parent.elem == null) { //unverified
if(descriptor == null)
@ -74,13 +71,12 @@ public class MethodContainer {
this.elem = null;
this.name = name;
this.descriptor = descriptor;
this.descriptorObf = mapper == null ? this.descriptor : mapper.obfuscateMethodDescriptor(this.descriptor);
} else {
this.elem = (ExecutableElement) findMember(parent, name, descriptor, descriptor != null && strict, false);
this.elem = (ExecutableElement) findMember(parent, name, descriptor, descriptor != null && strict, false, env);
this.name = this.elem.getSimpleName().toString();
this.descriptor = descriptorFromExecutableElement(this.elem);
this.descriptorObf = mapper == null ? this.descriptor : mapper.obfuscateMethodDescriptor(this.descriptor);
this.descriptor = descriptorFromExecutableElement(this.elem, env);
}
this.descriptorObf = mapper == null ? this.descriptor : mapper.obfuscateMethodDescriptor(this.descriptor);
this.nameObf = findMemberName(parent.fqn, this.name, this.descriptor, mapper);
}
@ -104,20 +100,13 @@ public class MethodContainer {
f, env, mapper
);
String name, descriptor;
if(f != null && !f.name().equals("")) { //match by name alone
if(LilleroProcessor.badPracticeWarnings) //warn user that he is doing bad stuff
env.getMessager().printMessage(Diagnostic.Kind.WARNING,
String.format("Matching method %s by name, this is bad practice and may lead to unexpected behaviour. Use @Target stubs instead!", f.name()));
name = f.name();
descriptor = null;
} else {
if(t != null && !t.methodName().equals(""))
name = t.methodName(); //name was specified in target
else name = stub.getSimpleName().toString();
descriptor = t != null && t.strict() ? descriptorFromExecutableElement(stub) : null;
}
String name = t != null && !t.methodName().equals("")
? t.methodName() //name was specified in target
: stub.getSimpleName().toString();
String descriptor = t != null && t.strict()
? descriptorFromExecutableElement(stub, env)
: null;
return new MethodContainer(parent, name, descriptor, t != null && t.strict(), mapper);
return new MethodContainer(parent, name, descriptor, t != null && t.strict(), env, mapper);
}
}

View file

@ -39,6 +39,7 @@ public class ObfuscationMapper {
public ObfuscationMapper(Stream<String> str) {
AtomicReference<String> currentClass = new AtomicReference<>("");
str.forEach(l -> {
if(l == null) return;
if(l.startsWith("\t"))
mapper.get(currentClass.get()).addMember(l);
else {
@ -63,18 +64,6 @@ public class ObfuscationMapper {
else return data.obf;
}
/**
* Gets the unobfuscated name of the class.
* Due to how it's implemented, it's considerably less efficient than its
* opposite operation.
* @param obfName the obfuscated internal name of the desired class
* @return the deobfuscated name of the class
*/
public String deobfuscateClass(String obfName) {
ObfuscationData data = getObfuscationData(obfName);
return data.unobf;
}
/**
* Gets the obfuscated name of a class member (field or method).
* The method signature must be in this format: "methodName methodDescriptor",
@ -141,35 +130,6 @@ public class ObfuscationMapper {
}
}
/**
* Gets the unobfuscated name of the given member.
* Due to how it's implemented, it's considerably less efficient than its
* opposite operation.
* @param parentObf the obfuscated internal name of the container class
* @param memberObf the field name or method signature
* @return the deobfuscated name of the given member
*/
public String deobfuscateMember(String parentObf, String memberObf) {
ObfuscationData data = getObfuscationData(parentObf);
for(String unobf : data.members.keySet())
if(data.members.get(unobf).equals(memberObf))
return unobf;
return null;
}
/**
* Used internally. Gets the obfuscation data corresponding to the given obfuscated class name.
* @param classObfuscatedName the internal name of the obfuscated class
* @return the desired {@link ObfuscationData} object
* @throws MappingNotFoundException if no {@link ObfuscationData} object is found
*/
private ObfuscationData getObfuscationData(String classObfuscatedName) {
for(ObfuscationData s : mapper.values())
if(s.obf.equals(classObfuscatedName))
return s;
throw new MappingNotFoundException(classObfuscatedName);
}
/**
* Private class used internally for storing information about each
* class. It's private because there is no good reason anyone would