diff --git a/brut.apktool/apktool-lib/src/main/java/brut/androlib/ApkDecoder.java b/brut.apktool/apktool-lib/src/main/java/brut/androlib/ApkDecoder.java
index 74bc5255..bba38046 100644
--- a/brut.apktool/apktool-lib/src/main/java/brut/androlib/ApkDecoder.java
+++ b/brut.apktool/apktool-lib/src/main/java/brut/androlib/ApkDecoder.java
@@ -18,7 +18,7 @@ package brut.androlib;
 
 import brut.androlib.err.InFileNotFoundException;
 import brut.androlib.err.OutDirExistsException;
-import brut.androlib.err.UndefinedResObject;
+import brut.androlib.err.UndefinedResObjectException;
 import brut.androlib.meta.MetaInfo;
 import brut.androlib.meta.PackageInfo;
 import brut.androlib.meta.UsesFramework;
@@ -416,7 +416,7 @@ public class ApkDecoder {
         int id = getResTable().getPackageId();
         try {
             id = getResTable().getPackage(renamed).getId();
-        } catch (UndefinedResObject ignored) {}
+        } catch (UndefinedResObjectException ignored) {}
 
         if (Strings.isNullOrEmpty(original)) {
             return;
diff --git a/brut.apktool/apktool-lib/src/main/java/brut/androlib/err/AXmlDecodingException.java b/brut.apktool/apktool-lib/src/main/java/brut/androlib/err/AXmlDecodingException.java
index 39c5d304..d6bbc0e6 100644
--- a/brut.apktool/apktool-lib/src/main/java/brut/androlib/err/AXmlDecodingException.java
+++ b/brut.apktool/apktool-lib/src/main/java/brut/androlib/err/AXmlDecodingException.java
@@ -19,19 +19,7 @@ package brut.androlib.err;
 import brut.androlib.AndrolibException;
 
 public class AXmlDecodingException extends AndrolibException {
-
-    public AXmlDecodingException(Throwable cause) {
-        super(cause);
-    }
-
     public AXmlDecodingException(String message, Throwable cause) {
         super(message, cause);
     }
-
-    public AXmlDecodingException(String message) {
-        super(message);
-    }
-
-    public AXmlDecodingException() {
-    }
 }
\ No newline at end of file
diff --git a/brut.apktool/apktool-lib/src/main/java/brut/androlib/err/UndefinedResObject.java b/brut.apktool/apktool-lib/src/main/java/brut/androlib/err/CantFind9PatchChunkException.java
similarity index 74%
rename from brut.apktool/apktool-lib/src/main/java/brut/androlib/err/UndefinedResObject.java
rename to brut.apktool/apktool-lib/src/main/java/brut/androlib/err/CantFind9PatchChunkException.java
index 96d8a8ff..5f204115 100644
--- a/brut.apktool/apktool-lib/src/main/java/brut/androlib/err/UndefinedResObject.java
+++ b/brut.apktool/apktool-lib/src/main/java/brut/androlib/err/CantFind9PatchChunkException.java
@@ -21,19 +21,8 @@ import brut.androlib.AndrolibException;
 /**
  * @author Ryszard Wiśniewski <brut.alll@gmail.com>
  */
-public class UndefinedResObject extends AndrolibException {
-	public UndefinedResObject(Throwable cause) {
-		super(cause);
-	}
-
-	public UndefinedResObject(String message, Throwable cause) {
+public class CantFind9PatchChunkException extends AndrolibException {
+	public CantFind9PatchChunkException(String message, Throwable cause) {
 		super(message, cause);
 	}
-
-	public UndefinedResObject(String message) {
-		super(message);
-	}
-
-	public UndefinedResObject() {
-	}
 }
diff --git a/brut.apktool/apktool-lib/src/main/java/brut/androlib/err/CantFindFrameworkResException.java b/brut.apktool/apktool-lib/src/main/java/brut/androlib/err/CantFindFrameworkResException.java
index ec6c1082..d7867f29 100644
--- a/brut.apktool/apktool-lib/src/main/java/brut/androlib/err/CantFindFrameworkResException.java
+++ b/brut.apktool/apktool-lib/src/main/java/brut/androlib/err/CantFindFrameworkResException.java
@@ -22,12 +22,6 @@ import brut.androlib.AndrolibException;
  * @author Ryszard Wiśniewski <brut.alll@gmail.com>
  */
 public class CantFindFrameworkResException extends AndrolibException {
-
-	public CantFindFrameworkResException(Throwable cause, int id) {
-		super(cause);
-		mPkgId = id;
-	}
-
 	public CantFindFrameworkResException(int id) {
 		mPkgId = id;
 	}
diff --git a/brut.apktool/apktool-lib/src/main/java/brut/androlib/err/InFileNotFoundException.java b/brut.apktool/apktool-lib/src/main/java/brut/androlib/err/InFileNotFoundException.java
index b7253b89..a682b905 100644
--- a/brut.apktool/apktool-lib/src/main/java/brut/androlib/err/InFileNotFoundException.java
+++ b/brut.apktool/apktool-lib/src/main/java/brut/androlib/err/InFileNotFoundException.java
@@ -22,19 +22,6 @@ import brut.androlib.AndrolibException;
  * @author Ryszard Wiśniewski <brut.alll@gmail.com>
  */
 public class InFileNotFoundException extends AndrolibException {
-
-	public InFileNotFoundException(Throwable cause) {
-		super(cause);
-	}
-
-	public InFileNotFoundException(String message, Throwable cause) {
-		super(message, cause);
-	}
-
-	public InFileNotFoundException(String message) {
-		super(message);
-	}
-
 	public InFileNotFoundException() {
 	}
 }
diff --git a/brut.apktool/apktool-lib/src/main/java/brut/androlib/err/OutDirExistsException.java b/brut.apktool/apktool-lib/src/main/java/brut/androlib/err/OutDirExistsException.java
index 5598e6f4..30c586b5 100644
--- a/brut.apktool/apktool-lib/src/main/java/brut/androlib/err/OutDirExistsException.java
+++ b/brut.apktool/apktool-lib/src/main/java/brut/androlib/err/OutDirExistsException.java
@@ -22,19 +22,6 @@ import brut.androlib.AndrolibException;
  * @author Ryszard Wiśniewski <brut.alll@gmail.com>
  */
 public class OutDirExistsException extends AndrolibException {
-
-	public OutDirExistsException(Throwable cause) {
-		super(cause);
-	}
-
-	public OutDirExistsException(String message, Throwable cause) {
-		super(message, cause);
-	}
-
-	public OutDirExistsException(String message) {
-		super(message);
-	}
-
 	public OutDirExistsException() {
 	}
 }
diff --git a/brut.apktool/apktool-lib/src/main/java/brut/androlib/err/RawXmlEncounteredException.java b/brut.apktool/apktool-lib/src/main/java/brut/androlib/err/RawXmlEncounteredException.java
index 7a93569c..8f2c3267 100644
--- a/brut.apktool/apktool-lib/src/main/java/brut/androlib/err/RawXmlEncounteredException.java
+++ b/brut.apktool/apktool-lib/src/main/java/brut/androlib/err/RawXmlEncounteredException.java
@@ -19,19 +19,7 @@ package brut.androlib.err;
 import brut.androlib.AndrolibException;
 
 public class RawXmlEncounteredException extends AndrolibException {
-
-    public RawXmlEncounteredException(Throwable cause) {
-        super(cause);
-    }
-
     public RawXmlEncounteredException(String message, Throwable cause) {
         super(message, cause);
     }
-
-    public RawXmlEncounteredException(String message) {
-        super(message);
-    }
-
-    public RawXmlEncounteredException() {
-    }
 }
diff --git a/brut.apktool/apktool-lib/src/main/java/brut/androlib/err/CantFind9PatchChunk.java b/brut.apktool/apktool-lib/src/main/java/brut/androlib/err/UndefinedResObjectException.java
similarity index 73%
rename from brut.apktool/apktool-lib/src/main/java/brut/androlib/err/CantFind9PatchChunk.java
rename to brut.apktool/apktool-lib/src/main/java/brut/androlib/err/UndefinedResObjectException.java
index 9e438c93..b2a17830 100644
--- a/brut.apktool/apktool-lib/src/main/java/brut/androlib/err/CantFind9PatchChunk.java
+++ b/brut.apktool/apktool-lib/src/main/java/brut/androlib/err/UndefinedResObjectException.java
@@ -21,20 +21,8 @@ import brut.androlib.AndrolibException;
 /**
  * @author Ryszard Wiśniewski <brut.alll@gmail.com>
  */
-public class CantFind9PatchChunk extends AndrolibException {
-
-	public CantFind9PatchChunk(Throwable cause) {
-		super(cause);
-	}
-
-	public CantFind9PatchChunk(String message, Throwable cause) {
-		super(message, cause);
-	}
-
-	public CantFind9PatchChunk(String message) {
+public class UndefinedResObjectException extends AndrolibException {
+	public UndefinedResObjectException(String message) {
 		super(message);
 	}
-
-	public CantFind9PatchChunk() {
-	}
 }
diff --git a/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/data/ResPackage.java b/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/data/ResPackage.java
index 7de094e0..3895abcb 100644
--- a/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/data/ResPackage.java
+++ b/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/data/ResPackage.java
@@ -17,7 +17,7 @@
 package brut.androlib.res.data;
 
 import brut.androlib.AndrolibException;
-import brut.androlib.err.UndefinedResObject;
+import brut.androlib.err.UndefinedResObjectException;
 import brut.androlib.res.data.value.ResFileValue;
 import brut.androlib.res.data.value.ResValueFactory;
 import brut.androlib.res.xml.ResValuesXmlSerializable;
@@ -53,10 +53,10 @@ public class ResPackage {
         return mResSpecs.containsKey(resID);
     }
 
-    public ResResSpec getResSpec(ResID resID) throws UndefinedResObject {
+    public ResResSpec getResSpec(ResID resID) throws UndefinedResObjectException {
         ResResSpec spec = mResSpecs.get(resID);
         if (spec == null) {
-            throw new UndefinedResObject("resource spec: " + resID.toString());
+            throw new UndefinedResObjectException("resource spec: " + resID.toString());
         }
         return spec;
     }
@@ -72,7 +72,7 @@ public class ResPackage {
     public ResType getConfig(ResConfigFlags flags) throws AndrolibException {
         ResType config = mConfigs.get(flags);
         if (config == null) {
-            throw new UndefinedResObject("config: " + flags);
+            throw new UndefinedResObjectException("config: " + flags);
         }
         return config;
     }
@@ -101,7 +101,7 @@ public class ResPackage {
     public ResTypeSpec getType(String typeName) throws AndrolibException {
         ResTypeSpec type = mTypes.get(typeName);
         if (type == null) {
-            throw new UndefinedResObject("type: " + typeName);
+            throw new UndefinedResObjectException("type: " + typeName);
         }
         return type;
     }
diff --git a/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/data/ResResSpec.java b/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/data/ResResSpec.java
index 8f611c1d..0e9aac4d 100644
--- a/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/data/ResResSpec.java
+++ b/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/data/ResResSpec.java
@@ -17,7 +17,7 @@
 package brut.androlib.res.data;
 
 import brut.androlib.AndrolibException;
-import brut.androlib.err.UndefinedResObject;
+import brut.androlib.err.UndefinedResObjectException;
 import java.util.*;
 import org.apache.commons.lang3.StringUtils;
 
@@ -58,7 +58,7 @@ public class ResResSpec {
     public ResResource getResource(ResConfigFlags config) throws AndrolibException {
         ResResource res = mResources.get(config);
         if (res == null) {
-            throw new UndefinedResObject(String.format("resource: spec=%s, config=%s", this, config));
+            throw new UndefinedResObjectException(String.format("resource: spec=%s, config=%s", this, config));
         }
         return res;
     }
diff --git a/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/data/ResTable.java b/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/data/ResTable.java
index d37a3932..c842c32f 100644
--- a/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/data/ResTable.java
+++ b/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/data/ResTable.java
@@ -17,7 +17,7 @@
 package brut.androlib.res.data;
 
 import brut.androlib.AndrolibException;
-import brut.androlib.err.UndefinedResObject;
+import brut.androlib.err.UndefinedResObjectException;
 import brut.androlib.meta.VersionInfo;
 import brut.androlib.res.AndrolibResources;
 import brut.androlib.res.data.value.ResValue;
@@ -83,7 +83,7 @@ public class ResTable {
         if (mAndRes != null) {
             return mAndRes.loadFrameworkPkg(this, id, mAndRes.apkOptions.frameworkTag);
         }
-        throw new UndefinedResObject(String.format("package: id=%d", id));
+        throw new UndefinedResObjectException(String.format("package: id=%d", id));
     }
 
     public ResPackage getHighestSpecPackage() throws AndrolibException {
@@ -115,7 +115,7 @@ public class ResTable {
     public ResPackage getPackage(String name) throws AndrolibException {
         ResPackage pkg = mPackagesByName.get(name);
         if (pkg == null) {
-            throw new UndefinedResObject("package: name=" + name);
+            throw new UndefinedResObjectException("package: name=" + name);
         }
         return pkg;
     }
diff --git a/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/data/ResType.java b/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/data/ResType.java
index 8900ec61..1c0c6ec8 100644
--- a/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/data/ResType.java
+++ b/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/data/ResType.java
@@ -17,7 +17,7 @@
 package brut.androlib.res.data;
 
 import brut.androlib.AndrolibException;
-import brut.androlib.err.UndefinedResObject;
+import brut.androlib.err.UndefinedResObjectException;
 import java.util.*;
 
 /**
@@ -38,7 +38,7 @@ public class ResType {
     public ResResource getResource(ResResSpec spec) throws AndrolibException {
         ResResource res = mResources.get(spec);
         if (res == null) {
-            throw new UndefinedResObject(String.format("resource: spec=%s, config=%s", spec, this));
+            throw new UndefinedResObjectException(String.format("resource: spec=%s, config=%s", spec, this));
         }
         return res;
     }
diff --git a/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/data/ResTypeSpec.java b/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/data/ResTypeSpec.java
index ace8dd54..2c000bd3 100644
--- a/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/data/ResTypeSpec.java
+++ b/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/data/ResTypeSpec.java
@@ -17,7 +17,7 @@
 package brut.androlib.res.data;
 
 import brut.androlib.AndrolibException;
-import brut.androlib.err.UndefinedResObject;
+import brut.androlib.err.UndefinedResObjectException;
 import java.util.*;
 
 /**
@@ -70,7 +70,7 @@ public final class ResTypeSpec {
     public ResResSpec getResSpec(String name) throws AndrolibException {
         ResResSpec spec = getResSpecUnsafe(name);
         if (spec == null) {
-            throw new UndefinedResObject(String.format("resource spec: %s/%s", getName(), name));
+            throw new UndefinedResObjectException(String.format("resource spec: %s/%s", getName(), name));
         }
         return spec;
     }
diff --git a/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/data/value/ResReferenceValue.java b/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/data/value/ResReferenceValue.java
index a5b914db..64d7fbf2 100644
--- a/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/data/value/ResReferenceValue.java
+++ b/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/data/value/ResReferenceValue.java
@@ -17,7 +17,7 @@
 package brut.androlib.res.data.value;
 
 import brut.androlib.AndrolibException;
-import brut.androlib.err.UndefinedResObject;
+import brut.androlib.err.UndefinedResObjectException;
 import brut.androlib.res.data.ResPackage;
 import brut.androlib.res.data.ResResSpec;
 
@@ -60,7 +60,7 @@ public class ResReferenceValue extends ResIntValue {
     public ResResSpec getReferent() throws AndrolibException {
         try {
             return mPackage.getResTable().getResSpec(getValue());
-        } catch (UndefinedResObject ex) {
+        } catch (UndefinedResObjectException ex) {
             return null;
         }
     }
diff --git a/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/decoder/Res9patchStreamDecoder.java b/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/decoder/Res9patchStreamDecoder.java
index ebc80dde..efd4dc4d 100644
--- a/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/decoder/Res9patchStreamDecoder.java
+++ b/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/decoder/Res9patchStreamDecoder.java
@@ -17,14 +17,13 @@
 package brut.androlib.res.decoder;
 
 import brut.androlib.AndrolibException;
-import brut.androlib.err.CantFind9PatchChunk;
+import brut.androlib.err.CantFind9PatchChunkException;
 import brut.util.ExtDataInput;
 import java.awt.image.BufferedImage;
 import java.awt.image.Raster;
 import java.awt.image.WritableRaster;
 import java.io.*;
 import javax.imageio.ImageIO;
-import javax.imageio.ImageTypeSpecifier;
 
 import org.apache.commons.io.IOUtils;
 
@@ -110,7 +109,7 @@ public class Res9patchStreamDecoder implements ResStreamDecoder {
                     int y = h - i;
                     im2.setRGB(w + 1, y, OI_COLOR);
                 }
-            } catch (CantFind9PatchChunk t) {
+            } catch (CantFind9PatchChunkException t) {
                 // This chunk might not exist
             }
 
@@ -147,7 +146,7 @@ public class Res9patchStreamDecoder implements ResStreamDecoder {
             try {
                 size = di.readInt();
             } catch (IOException ex) {
-                throw new CantFind9PatchChunk("Cant find nine patch chunk", ex);
+                throw new CantFind9PatchChunkException("Cant find nine patch chunk", ex);
             }
             if (di.readInt() == magic) {
                 return;
diff --git a/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/decoder/ResAttrDecoder.java b/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/decoder/ResAttrDecoder.java
index 3c1fc412..6708eb96 100644
--- a/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/decoder/ResAttrDecoder.java
+++ b/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/decoder/ResAttrDecoder.java
@@ -17,7 +17,7 @@
 package brut.androlib.res.decoder;
 
 import brut.androlib.AndrolibException;
-import brut.androlib.err.UndefinedResObject;
+import brut.androlib.err.UndefinedResObjectException;
 import brut.androlib.res.data.ResPackage;
 import brut.androlib.res.data.ResResSpec;
 import brut.androlib.res.data.value.ResAttr;
@@ -39,7 +39,7 @@ public class ResAttrDecoder {
                         .getResSpec(attrResId).getDefaultResource().getValue();
 
                 decoded = attr.convertToResXmlFormat(resValue);
-            } catch (UndefinedResObject | ClassCastException ex) {
+            } catch (UndefinedResObjectException | ClassCastException ex) {
                 // ignored
             }
         }
diff --git a/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/decoder/ResFileDecoder.java b/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/decoder/ResFileDecoder.java
index ed68b780..3d26fa56 100644
--- a/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/decoder/ResFileDecoder.java
+++ b/brut.apktool/apktool-lib/src/main/java/brut/androlib/res/decoder/ResFileDecoder.java
@@ -17,7 +17,7 @@
 package brut.androlib.res.decoder;
 
 import brut.androlib.AndrolibException;
-import brut.androlib.err.CantFind9PatchChunk;
+import brut.androlib.err.CantFind9PatchChunkException;
 import brut.androlib.err.RawXmlEncounteredException;
 import brut.androlib.res.data.ResResource;
 import brut.androlib.res.data.value.ResBoolValue;
@@ -93,7 +93,7 @@ public class ResFileDecoder {
                     try {
                         decode(inDir, inFileName, outDir, outFileName, "9patch");
                         return;
-                    } catch (CantFind9PatchChunk ex) {
+                    } catch (CantFind9PatchChunkException ex) {
                         LOGGER.log(
                                 Level.WARNING,
                                 String.format(