Don't try and move jumps around in exceptions

src/main/java/info/sigterm/deob/attributes/Code.java

@@ -28,6 +28,9 @@ public class Code extends Attribute
 
 		exceptions = new Exceptions(this);
 		this.attributes = new Attributes(this);
+		
+		instructions.buildBlocks();
+		instructions.buildJumpGraph();
 	}
 	
 	@Override

src/main/java/info/sigterm/deob/attributes/code/Block.java

@@ -7,4 +7,6 @@ public class Block
 {
 	public Instruction begin, end;
 	public List<Instruction> instructions = new ArrayList<>();
+	public List<Exception> exceptions = new ArrayList<>(); // is an instruction in the handlers try { }
+	public List<Exception> handlers = new ArrayList<>(); // first ins is a handler for exception
 }

src/main/java/info/sigterm/deob/attributes/code/Instructions.java

@@ -52,9 +52,6 @@ public class Instructions
 		
 		for (Instruction i : instructions)
 			i.resolve();
-
-		buildJumpGraph();
-		buildBlocks();
 	}
 	
 	public List<Instruction> getInstructions()
@@ -84,6 +81,21 @@ public class Instructions
 		}
 	}
 	
+	private void findExceptionInfo(Block block, Instruction i)
+	{
+		for (Exception e : code.getExceptions().getExceptions())
+		{
+			if (i.getPc() >= e.getStart().getPc() && i.getPc() < e.getEnd().getPc())
+			{
+				block.exceptions.add(e);
+			}
+			if (e.getHandler() == i)
+			{
+				block.handlers.add(e);
+			}
+		}
+	}
+	
 	public void buildBlocks()
 	{
 		for (Instruction i : instructions)
@@ -97,6 +109,7 @@ public class Instructions
 			{
 				current = new Block();
 				current.begin = i;
+				findExceptionInfo(current, i);
 			}
 			i.block = current;
 			current.instructions.add(i);

src/main/java/info/sigterm/deob/deobfuscators/Jumps.java

@@ -33,9 +33,12 @@ public class Jumps
 					Block block = blocks.get(i);
 					Block prev = i > 0 ? blocks.get(i - 1) : null;
 					
-					// only one thing jumps here
 					if (block.begin.from.size() == 1 && prev != null && prev.end.isTerminal())
 					{
+						// not sure if this is right, just don't mess with blocks in exception ranges or directly handling them
+						if (block.exceptions.isEmpty() == false || block.handlers.isEmpty() == false || prev.exceptions.isEmpty() == false || prev.handlers.isEmpty() == false)
+							continue;
+						
 						Instruction from = block.begin.from.get(0); // this instruction jumps to block
 						
 						if (from.block == block)