diff --git a/translator-core/src/test/java/software/coley/dextransformer/accuracy/AccuracyTests.java b/translator-core/src/test/java/software/coley/dextransformer/accuracy/AccuracyTests.java
index aebbac6..e66a6dd 100644
--- a/translator-core/src/test/java/software/coley/dextransformer/accuracy/AccuracyTests.java
+++ b/translator-core/src/test/java/software/coley/dextransformer/accuracy/AccuracyTests.java
@@ -9,11 +9,11 @@
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Sets;
 import org.junit.jupiter.api.Disabled;
-import org.junit.jupiter.api.Test;
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.MethodSource;
+import org.junit.jupiter.params.provider.ValueSource;
 import org.objectweb.asm.Opcodes;
-import sample.UnusedCatchEx1Block;
+import sample.*;
 import software.coley.dextransformer.TestBase;
 import software.coley.dextranslator.Inputs;
 import software.coley.dextranslator.Options;
@@ -34,10 +34,34 @@ public class AccuracyTests extends TestBase implements Opcodes {
 	private static final int DIFF_COLUMN_WIDTH = 80;
 	private static final boolean ALWAYS_LOG = false;
 
-	@Test
-	void testSingle() {
-		Class<?> c = UnusedCatchEx1Block.class;
-
+	@ParameterizedTest
+	@ValueSource(classes = {
+			EmptyCatchBlock.class,
+			MultiCatchInUnusedCatch.class,
+			MultiCatchInUsedCatch.class,
+			MultiCatchInCatchInCatch.class,
+			RethrownCatchEx1Block.class,
+			RethrownCatchEx2Block.class,
+			RethrownTryInUnusedTry.class,
+			RethrownTryInUnusedTryOfSameType.class,
+			RethrownTryInUsedTryOfSameType.class,
+			UnusedCatchEx.class,
+			UnusedCatchEx1Block.class,
+			UnusedCatchEx2Block.class,
+			UnusedCatchEx3Block.class,
+			UnusedMultiCatch.class,
+			UnusedTryInUnusedTry.class,
+			UnusedTryInUsedTry.class,
+			UsedCatchEx1Block.class,
+			UsedCatchEx2Block.class,
+			UsedCatchEx3Block.class,
+			UsedMultiCatchBoth.class,
+			UsedMultiCatchFirst.class,
+			UsedMultiCatchSecond.class,
+			UsedTryInUnusedTry.class,
+			UsedTryInUsedTry.class,
+	})
+	void testSingle(Class<?> c) {
 		Map<String, byte[]> classMap = Map.of(c.getName().replace('.', '/'), filterDebug(getRuntimeClassBytes(c)));
 		AbstractConversionStep step = AbstractConversionStep.initJvmStep(ClassFilter.PASS_ALL, classMap);
 		iterate(step);
@@ -112,6 +136,11 @@ private static void dumpDiffFromPrior(@Nonnull AbstractConversionStep step) {
 						}
 					}
 				}
+			} else {
+				SortedMap<String, String> disassembledCurrent = step.disassemble();
+				for (String disassemble : disassembledCurrent.values()) {
+					System.out.println("\n\n\n" + disassemble);
+				}
 			}
 		} catch (IOException ex) {
 			fail("Failed to disassemble", ex);
diff --git a/translator-core/src/testFixtures/java/sample/EmptyCatchBlock.java b/translator-core/src/testFixtures/java/sample/EmptyCatchBlock.java
new file mode 100644
index 0000000..ab52b77
--- /dev/null
+++ b/translator-core/src/testFixtures/java/sample/EmptyCatchBlock.java
@@ -0,0 +1,12 @@
+package sample;
+
+public class EmptyCatchBlock {
+	public static void foo(int i) {
+		try {
+			if (i > 0)
+				throw new Exception();
+		} catch (Exception ignored) {
+			// empty, no code at all
+		}
+	}
+}
diff --git a/translator-core/src/testFixtures/java/sample/MultiCatchInCatchInCatch.java b/translator-core/src/testFixtures/java/sample/MultiCatchInCatchInCatch.java
new file mode 100644
index 0000000..b671c34
--- /dev/null
+++ b/translator-core/src/testFixtures/java/sample/MultiCatchInCatchInCatch.java
@@ -0,0 +1,22 @@
+package sample;
+
+public class MultiCatchInCatchInCatch {
+	public static void foo(int i) {
+		try {
+			try {
+				 try {
+					 if (i > 0)
+						 throw new Exception();
+				 } catch (Exception ex) {
+					 System.out.println("fail ex");
+				 } catch (Throwable t) {
+					 System.out.println("fail t");
+				 }
+			} catch (Exception ignored) {
+				// empty
+			}
+		} catch (Throwable t) {
+			System.out.println("fail outer");
+		}
+	}
+}
diff --git a/translator-core/src/testFixtures/java/sample/MultiCatchInUnusedCatch.java b/translator-core/src/testFixtures/java/sample/MultiCatchInUnusedCatch.java
new file mode 100644
index 0000000..907b927
--- /dev/null
+++ b/translator-core/src/testFixtures/java/sample/MultiCatchInUnusedCatch.java
@@ -0,0 +1,17 @@
+package sample;
+
+public class MultiCatchInUnusedCatch {
+	public static void foo() {
+		try {
+			try {
+				throw new Exception();
+			} catch (Exception ex) {
+				System.out.println("fail ex");
+			} catch (Throwable t) {
+				System.out.println("fail t");
+			}
+		} catch (Exception ignored) {
+			// empty
+		}
+	}
+}
diff --git a/translator-core/src/testFixtures/java/sample/MultiCatchInUsedCatch.java b/translator-core/src/testFixtures/java/sample/MultiCatchInUsedCatch.java
new file mode 100644
index 0000000..ecc644c
--- /dev/null
+++ b/translator-core/src/testFixtures/java/sample/MultiCatchInUsedCatch.java
@@ -0,0 +1,17 @@
+package sample;
+
+public class MultiCatchInUsedCatch {
+	public static void foo() {
+		try {
+			try {
+				throw new Exception();
+			} catch (Exception ex) {
+				System.out.println("fail ex");
+			} catch (Throwable t) {
+				System.out.println("fail t");
+			}
+		} catch (Exception ex) {
+			ex.printStackTrace();
+		}
+	}
+}
diff --git a/translator-core/src/testFixtures/java/sample/RethrownCatchEx1Block.java b/translator-core/src/testFixtures/java/sample/RethrownCatchEx1Block.java
new file mode 100644
index 0000000..d65dbf6
--- /dev/null
+++ b/translator-core/src/testFixtures/java/sample/RethrownCatchEx1Block.java
@@ -0,0 +1,14 @@
+package sample;
+
+import java.io.IOException;
+
+public class RethrownCatchEx1Block {
+	public static void foo(int i) throws IOException {
+		try {
+			if (i > 0)
+				throw new IOException();
+		} catch (IOException e) {
+			throw e;
+		}
+	}
+}
diff --git a/translator-core/src/testFixtures/java/sample/RethrownCatchEx2Block.java b/translator-core/src/testFixtures/java/sample/RethrownCatchEx2Block.java
new file mode 100644
index 0000000..e079687
--- /dev/null
+++ b/translator-core/src/testFixtures/java/sample/RethrownCatchEx2Block.java
@@ -0,0 +1,18 @@
+package sample;
+
+import java.io.IOException;
+
+public class RethrownCatchEx2Block {
+	public static void foo(int i) throws IOException {
+		try {
+			if (i > 1)
+				throw new UnsupportedOperationException();
+			if (i > 0)
+				throw new IOException();
+		} catch (UnsupportedOperationException e) {
+			throw e;
+		} catch (IOException e) {
+			throw e;
+		}
+	}
+}
diff --git a/translator-core/src/testFixtures/java/sample/RethrownTryInUnusedTry.java b/translator-core/src/testFixtures/java/sample/RethrownTryInUnusedTry.java
new file mode 100644
index 0000000..3f2411d
--- /dev/null
+++ b/translator-core/src/testFixtures/java/sample/RethrownTryInUnusedTry.java
@@ -0,0 +1,19 @@
+package sample;
+
+import java.io.IOException;
+
+public class RethrownTryInUnusedTry {
+	public static void foo(int i) {
+		try {
+			try {
+				Class.forName("");
+				if (i > 0)
+					throw new IOException();
+			} catch (ClassNotFoundException e) {
+				throw new IOException(e);
+			}
+		} catch (IOException e) {
+			System.out.println("fail io");
+		}
+	}
+}
diff --git a/translator-core/src/testFixtures/java/sample/RethrownTryInUnusedTryOfSameType.java b/translator-core/src/testFixtures/java/sample/RethrownTryInUnusedTryOfSameType.java
new file mode 100644
index 0000000..b320479
--- /dev/null
+++ b/translator-core/src/testFixtures/java/sample/RethrownTryInUnusedTryOfSameType.java
@@ -0,0 +1,17 @@
+package sample;
+
+import java.io.IOException;
+
+public class RethrownTryInUnusedTryOfSameType {
+	public static void foo() {
+		try {
+			try {
+				throw new IOException();
+			} catch (IOException e) {
+				throw new IOException(e);
+			}
+		} catch (IOException e) {
+			foo();
+		}
+	}
+}
diff --git a/translator-core/src/testFixtures/java/sample/RethrownTryInUsedTryOfSameType.java b/translator-core/src/testFixtures/java/sample/RethrownTryInUsedTryOfSameType.java
new file mode 100644
index 0000000..02bf3fa
--- /dev/null
+++ b/translator-core/src/testFixtures/java/sample/RethrownTryInUsedTryOfSameType.java
@@ -0,0 +1,17 @@
+package sample;
+
+import java.io.IOException;
+
+public class RethrownTryInUsedTryOfSameType {
+	public static void foo() {
+		try {
+			try {
+				throw new IOException();
+			} catch (IOException e) {
+				throw new IOException(e);
+			}
+		} catch (IOException e) {
+			System.out.println("fail " + e.getMessage());
+		}
+	}
+}
diff --git a/translator-core/src/testFixtures/java/sample/UnusedCatchEx.java b/translator-core/src/testFixtures/java/sample/UnusedCatchEx.java
new file mode 100644
index 0000000..3526e13
--- /dev/null
+++ b/translator-core/src/testFixtures/java/sample/UnusedCatchEx.java
@@ -0,0 +1,13 @@
+package sample;
+
+import java.io.IOException;
+
+public class UnusedCatchEx {
+	public static void foo() {
+		try {
+			throw new IOException();
+		} catch (IOException e) {
+			foo();
+		}
+	}
+}
diff --git a/translator-core/src/testFixtures/java/sample/UnusedCatchEx2Block.java b/translator-core/src/testFixtures/java/sample/UnusedCatchEx2Block.java
index ee9ad6b..aa58ec2 100644
--- a/translator-core/src/testFixtures/java/sample/UnusedCatchEx2Block.java
+++ b/translator-core/src/testFixtures/java/sample/UnusedCatchEx2Block.java
@@ -9,7 +9,7 @@ public static void foo(int i) {
 				throw new UnsupportedOperationException();
 			if (i > 0)
 				throw new IOException();
-		}catch (UnsupportedOperationException e) {
+		} catch (UnsupportedOperationException e) {
 			System.out.println("fail 1");
 		} catch (IOException e) {
 			System.out.println("fail 2");
diff --git a/translator-core/src/testFixtures/java/sample/UnusedMultiCatch.java b/translator-core/src/testFixtures/java/sample/UnusedMultiCatch.java
new file mode 100644
index 0000000..30a38f9
--- /dev/null
+++ b/translator-core/src/testFixtures/java/sample/UnusedMultiCatch.java
@@ -0,0 +1,14 @@
+package sample;
+
+public class UnusedMultiCatch {
+	public static void foo(int i) {
+		try {
+			if (i > 0)
+				throw new Exception();
+		} catch (Exception ex) {
+			System.out.println("fail ex");
+		} catch (Throwable t) {
+			System.out.println("fail t");
+		}
+	}
+}
diff --git a/translator-core/src/testFixtures/java/sample/UnusedTryInUnusedTry.java b/translator-core/src/testFixtures/java/sample/UnusedTryInUnusedTry.java
new file mode 100644
index 0000000..5f352bd
--- /dev/null
+++ b/translator-core/src/testFixtures/java/sample/UnusedTryInUnusedTry.java
@@ -0,0 +1,19 @@
+package sample;
+
+import java.io.IOException;
+
+public class UnusedTryInUnusedTry {
+	public static void foo(int i) {
+		try {
+			try {
+				Class.forName("");
+				if (i > 0)
+					throw new IOException();
+			} catch (ClassNotFoundException e) {
+				System.out.println("fail class");
+			}
+		} catch (IOException e) {
+			System.out.println("fail io");
+		}
+	}
+}
diff --git a/translator-core/src/testFixtures/java/sample/UnusedTryInUsedTry.java b/translator-core/src/testFixtures/java/sample/UnusedTryInUsedTry.java
new file mode 100644
index 0000000..4561086
--- /dev/null
+++ b/translator-core/src/testFixtures/java/sample/UnusedTryInUsedTry.java
@@ -0,0 +1,19 @@
+package sample;
+
+import java.io.IOException;
+
+public class UnusedTryInUsedTry {
+	public static void foo(int i) {
+		try {
+			try {
+				Class.forName("");
+				if (i > 0)
+					throw new IOException();
+			} catch (ClassNotFoundException e) {
+				System.out.println("fail class");
+			}
+		} catch (IOException e) {
+			System.out.println("fail io " + e.getMessage());
+		}
+	}
+}
diff --git a/translator-core/src/testFixtures/java/sample/UsedCatchEx2Block.java b/translator-core/src/testFixtures/java/sample/UsedCatchEx2Block.java
new file mode 100644
index 0000000..b7ce7c6
--- /dev/null
+++ b/translator-core/src/testFixtures/java/sample/UsedCatchEx2Block.java
@@ -0,0 +1,18 @@
+package sample;
+
+import java.io.IOException;
+
+public class UsedCatchEx2Block {
+	public static void foo(int i) {
+		try {
+			if (i > 1)
+				throw new UnsupportedOperationException();
+			if (i > 0)
+				throw new IOException();
+		} catch (UnsupportedOperationException e) {
+			System.out.println("fail 1" + e.getMessage());
+		} catch (IOException e) {
+			System.out.println("fail 2" + e.getMessage());
+		}
+	}
+}
diff --git a/translator-core/src/testFixtures/java/sample/UsedCatchEx3Block.java b/translator-core/src/testFixtures/java/sample/UsedCatchEx3Block.java
new file mode 100644
index 0000000..a559ab3
--- /dev/null
+++ b/translator-core/src/testFixtures/java/sample/UsedCatchEx3Block.java
@@ -0,0 +1,22 @@
+package sample;
+
+import java.io.IOException;
+
+public class UsedCatchEx3Block {
+	public static void foo(int i) {
+		try {
+			if (i > 2)
+				throw new IllegalArgumentException();
+			if (i > 1)
+				throw new UnsupportedOperationException();
+			if (i > 0)
+				throw new IOException();
+		} catch (IllegalArgumentException e) {
+			System.out.println("fail 1" + e.getMessage());
+		} catch (UnsupportedOperationException e) {
+			System.out.println("fail 2" + e.getMessage());
+		} catch (IOException e) {
+			System.out.println("fail 3" + e.getMessage());
+		}
+	}
+}
diff --git a/translator-core/src/testFixtures/java/sample/UsedMultiCatchBoth.java b/translator-core/src/testFixtures/java/sample/UsedMultiCatchBoth.java
new file mode 100644
index 0000000..4f45ae1
--- /dev/null
+++ b/translator-core/src/testFixtures/java/sample/UsedMultiCatchBoth.java
@@ -0,0 +1,14 @@
+package sample;
+
+public class UsedMultiCatchBoth {
+	public static void foo(int i) {
+		try {
+			if (i > 0)
+				throw new Exception();
+		} catch (Exception ex) {
+			System.out.println("fail ex " + ex.getMessage());
+		} catch (Throwable t) {
+			System.out.println("fail t" + t.getMessage());
+		}
+	}
+}
diff --git a/translator-core/src/testFixtures/java/sample/UsedMultiCatchFirst.java b/translator-core/src/testFixtures/java/sample/UsedMultiCatchFirst.java
new file mode 100644
index 0000000..3daed60
--- /dev/null
+++ b/translator-core/src/testFixtures/java/sample/UsedMultiCatchFirst.java
@@ -0,0 +1,14 @@
+package sample;
+
+public class UsedMultiCatchFirst {
+	public static void foo(int i) {
+		try {
+			if (i > 0)
+				throw new Exception();
+		} catch (Exception ex) {
+			System.out.println("fail ex " + ex.getMessage());
+		} catch (Throwable t) {
+			System.out.println("fail t");
+		}
+	}
+}
diff --git a/translator-core/src/testFixtures/java/sample/UsedMultiCatchSecond.java b/translator-core/src/testFixtures/java/sample/UsedMultiCatchSecond.java
new file mode 100644
index 0000000..cd76c6c
--- /dev/null
+++ b/translator-core/src/testFixtures/java/sample/UsedMultiCatchSecond.java
@@ -0,0 +1,14 @@
+package sample;
+
+public class UsedMultiCatchSecond {
+	public static void foo(int i) {
+		try {
+			if (i > 0)
+				throw new Exception();
+		} catch (Exception ex) {
+			System.out.println("fail ex ");
+		} catch (Throwable t) {
+			System.out.println("fail t" + t.getMessage());
+		}
+	}
+}
diff --git a/translator-core/src/testFixtures/java/sample/UsedTryInUnusedTry.java b/translator-core/src/testFixtures/java/sample/UsedTryInUnusedTry.java
new file mode 100644
index 0000000..6bb5fcc
--- /dev/null
+++ b/translator-core/src/testFixtures/java/sample/UsedTryInUnusedTry.java
@@ -0,0 +1,19 @@
+package sample;
+
+import java.io.IOException;
+
+public class UsedTryInUnusedTry {
+	public static void foo(int i) {
+		try {
+			try {
+				Class.forName("");
+				if (i > 0)
+					throw new IOException();
+			} catch (ClassNotFoundException e) {
+				System.out.println("fail class " + e.getMessage());
+			}
+		} catch (IOException e) {
+			System.out.println("fail io");
+		}
+	}
+}
diff --git a/translator-core/src/testFixtures/java/sample/UsedTryInUsedTry.java b/translator-core/src/testFixtures/java/sample/UsedTryInUsedTry.java
new file mode 100644
index 0000000..2fc2ac8
--- /dev/null
+++ b/translator-core/src/testFixtures/java/sample/UsedTryInUsedTry.java
@@ -0,0 +1,19 @@
+package sample;
+
+import java.io.IOException;
+
+public class UsedTryInUsedTry {
+	public static void foo(int i) {
+		try {
+			try {
+				Class.forName("");
+				if (i > 0)
+					throw new IOException();
+			} catch (ClassNotFoundException e) {
+				System.out.println("fail class " + e.getMessage());
+			}
+		} catch (IOException e) {
+			System.out.println("fail io " + e.getMessage());
+		}
+	}
+}