What causes java.lang.reflect.InvocationTargetException

0 votes

I have somewhere in my code this:

 try{
 ..
 m.invoke(testObject);
 ..
 } catch(AssertionError e){
 ...
 } catch(Exception e){
 ..
 }

Thing is that, when it tries to invoke some method it throws InvocationTargetException instead of some other expected exception (specifically ArrayIndexOutOfBoundsException). As I actually know what method is invoked I went straight to this method code and added a try-catch block for the line that suppose to throw ArrayIndexOutOfBoundsException and it really threw ArrayIndexOutOfBoundsException as expected. Yet when going up it somehow changes to InvocationTargetException and in the code above catch(Exception e) e is InvocationTargetException and not ArrayIndexOutOfBoundsException as expected.

What could cause such a behavior or how can I check such a thing?

Jun 19, 2018 in Java by developer_1
• 3,300 points
3,102 views

1 answer to this question.

0 votes

The exception is thrown if

InvocationTargetException - if the underlying method throws an exception.

So if the method, that has been invoked with reflection API, throws an exception (runtime exception for example), the reflection API will wrap the exception into an InvocationTargetException.

answered Jun 19, 2018 by Rishabh
• 3,540 points

Related Questions In Java

+1 vote
3 answers

What is the syntax to declare and initialize an array in java?

You can use this method: String[] strs = ...READ MORE

answered Jul 25, 2018 in Java by samarth295
• 2,190 points
613 views
0 votes
2 answers

What is the difference between Set and List in java?

LIST SET Duplicates YES NO Order Ordered Depends on Implementation Positional Access YES NO List is an ordered sequence ...READ MORE

answered Aug 14 in Java by Sirajul
• 39,540 points
149 views
0 votes
1 answer

What are optional parameters in Java

Using three dots: public void move(Object... x) { ...READ MORE

answered Apr 27, 2018 in Java by developer_1
• 3,300 points
86 views
0 votes
1 answer

What do we understand from string pool in java?

This prints true (even though we don't use equals method: correct ...READ MORE

answered Apr 30, 2018 in Java by Daisy
• 8,050 points
47 views
0 votes
1 answer

What is ArrayIndexOutOfBoundsException ?

If You check System.out.print(names.length); you will get 3 ...READ MORE

answered May 11, 2018 in Java by sharth
• 3,350 points
93 views
0 votes
1 answer

How can we resolve ClassNotFoundException in Java?

Your classpath is broken. Depending on how you ...READ MORE

answered May 22, 2018 in Java by Akrati
• 3,150 points
79 views
0 votes
1 answer

How to resolve the java.net.ConnectException in Java?

If you are getting java.net.ConnectionException, it means ...READ MORE

answered Jun 4, 2018 in Java by Akrati
• 3,150 points
206 views
+1 vote
1 answer

How can we resolve java.lang.OutOfMemoryError in Java?

Work with smaller batches of HashMap Objects ...READ MORE

answered Jun 5, 2018 in Java by sharth
• 3,350 points
83 views
0 votes
2 answers

What is the use of toString method in Java and how can I use it ?

Whenever you require to explore the constructor ...READ MORE

answered Aug 23, 2018 in Java by Daisy
• 8,050 points
853 views
0 votes
1 answer

What is the concept of Immutability for strings in Java ? Why are strings immutable ?

According to Effective Java, chapter 4, page 73, ...READ MORE

answered May 11, 2018 in Java by Rishabh
• 3,540 points
188 views