This document analyzes user defined exceptions and their optimization in Java frameworks. It discusses exception handling mechanisms in Java and how to create custom exceptions. The research objectives are to analyze and design custom exceptions and their optimization in Java and web applications. The research methodology examines exception handling in multiple projects and creates custom exceptions by declaring methods that may throw exceptions using the "throws" keyword. Charts and tables are used to illustrate the number and types of exceptions found in different projects. The conclusion states that custom exceptions are an important Java feature and the paper covers how to implement them. Future work aims to provide more optimization of exceptions in Java frameworks.

1. ANALYSIS OF USER DEFINED EXCEPTION AND ITS
OPTIMIZATION IN JAVA FRAMEWORK
By:-
SONU GOYAL
B.Tech Biotech

2. Literature Survey
S.n
o
Paper Author Publisher Algorithm
used
Advantages Disadvanta
ges
1. Analysis of
exception
handling
patterns in
java project:
an empirical
study
Saman Nakshatri,
Maithri
hegde,Saihithi
Thandra,David R.
Cheritron School
of computational
science university
of waterloo
Ontario,Canada
MSR’16, 14-
15 May
2016,Austin,T
X,USA
Analysis of
exception
handling
pattern to
checked
exception
More
effective
personalise
d
recommen
dation
The
reviews
can be
fake or
false
2. Analysis and
testing of
programs
with
exception
handling
constructs
Saurabh Sinha
and Mary
Jean Harrold
college of
computing
2015 IEEE
International
Conference
on Computer
and
Information
Technology;
Analysis
techniques,
such as
control flow,
and control
dependence
Accuracy,ra
ting based
on multiple
criteria
Sparse
data can
deteriorat
e the
performan
ce

3. ABSTRACT
• Java has a proper mechanism for tackling with exceptions and
runtime errors and is also known as abnormal condition. This
mechanism is called exception handling. In this we have discuss
the parts (blocks) of exception handling and how it works. With
the addition of checked exceptions the writing of exceptional
handling code has become common. in this research paper we will
discuss the techniques to draw representation for programs and
will explicit exception that are raised explicitly through throw
statements .Exception handling constructs and how we can make
our own exception i.e. custom exception .Exceptional handling is a
mechanism that helps a user deal with abnormal condition .This
paper also discuss the several software engineering techniques
that use these analysis and implementation. Finally, this paper
implements empirical result pertaining to the possibility of
exception handling and their impact on some analysis tasks in
different projects of java.

4. RESEARCH OBJECTIVES
The goal is to analyze and design of custom
exception and its optimization in java and web
application. Using throw keyword we can
declare method which might be exception
producing. We explain the custom exception in
runtime.

5. RESEARCH
METHODOLOGY
Using throws keyword we can declare method
which might be exception producing. In order to
use a custom exception, you must show classes
that call your code that they need to plan for
this new type of exception.
In this research paper we have study multiple
project in different areas and workout number
of exception .then show one of the case is given
below:

6. We found that age can never be negative. We explain
below how we explain through the custom exception in
runtime:
EXCEPTION CREATION CODE CUSTOM EXCEPTION CODE

7. CHART OF EXCEPTION OF
DIFFERENT PROJECTS
TABLE OF DIFFERENT PROJECTS
AND ITS EXCEPTION

8. CONCLUSION AND FUTURE SCOPE
. In this research article, we have gone through all the custom
exception features provided by java .We have seen the top
level exception class hierarchy and focused mainly on custom
exception throughout. Exception handling is a very important
feature and is provided by only high level languages like C++ and
JAVA though the mechanism in both differs a lot .This paper is all
about exception handling in java and mainly deals
With custom exception handling which covers almost everything
related to exceptions in java. We are still working
on it and will provide much more amazing work java framework in
future.

9. REFERENCES
• 1] J.KUMARI, S.SINGH, A.SAXENA, “AN EXCEPTION MONITORING USING JAVA,”
IJCST, VOL.6, ISSUE 2, MARCH-APRIL 2015.
• [2] X.ZHOU, “RESEARCH ON TEACHING OF JAVA EXCEPTION
HANDLING,”MECS,VOL.9, SEPTEMBER 2012
• [3] James G, Bill J, Guy S, “The Java Language Specification”, Edition 3,
Addison Wesley, 2006.
• [4] H.Ohe, B.Chang, “An Exception Monitoring System for Java,” Springer
Berlin Heidelberg, 2005.
• [5] S. Ryu. Exception analysis for multithreaded Java programs.
• TechnicalMemorandum ROPAS-2001-11, Research On Program Analysis
• System, Korea Advanced Institute of Science and Technology, Apr. 2001.
• [6] J. D. R. III and P. Haggar. Multithreaded exception handling in java. Java
• Report, Aug. 1998.
• [7] P. Cenciarelli, A. Knapp, B. Reus, and M. Wirsing. An event-based