public void visitExceptionInfo(
Clazz clazz, Method method, CodeAttribute codeAttribute, ExceptionInfo exceptionInfo) {
int startPC = Math.max(exceptionInfo.u2startPC, clipStart);
int endPC = Math.min(exceptionInfo.u2endPC, clipEnd);
int handlerPC = exceptionInfo.u2handlerPC;
int catchType = exceptionInfo.u2catchType;
// Exclude any subroutine invocations that jump out of the try block,
// by adding a try block before (and later on, after) each invocation.
for (int offset = startPC; offset < endPC; offset++) {
if (branchTargetFinder.isSubroutineInvocation(offset)) {
Instruction instruction = InstructionFactory.create(codeAttribute.code, offset);
int instructionLength = instruction.length(offset);
// Is it a subroutine invocation?
if (!exceptionInfo.isApplicable(offset + ((BranchInstruction) instruction).branchOffset)) {
if (DEBUG) {
System.out.println(
" Appending extra exception [" + startPC + " -> " + offset + "] -> " + handlerPC);
}
// Append a try block that ends before the subroutine invocation.
codeAttributeComposer.appendException(
new ExceptionInfo(startPC, offset, handlerPC, catchType));
// The next try block will start after the subroutine invocation.
startPC = offset + instructionLength;
}
}
}
if (DEBUG) {
System.out.println(
" Appending exception [" + startPC + " -> " + endPC + "] -> " + handlerPC);
}
// Append the exception. Note that exceptions with empty try blocks
// are automatically ignored.
codeAttributeComposer.appendException(new ExceptionInfo(startPC, endPC, handlerPC, catchType));
}
public void visitExceptionInfo(
Clazz clazz, Method method, CodeAttribute codeAttribute, ExceptionInfo exceptionInfo) {
if (!exceptionInfo.isApplicable(instructionOffset)) {
exceptionInfoVisitor.visitExceptionInfo(clazz, method, codeAttribute, exceptionInfo);
}
}