Source not found for InvocationTargetException.求助大神

[大昭逸]

求大神看下我的代码,构造中里33行计算总页数, 调Debug时,抛出异常
Source not found for InvocationTargetException.<init>(Throwable) line: not available

package com.jyd.utils;

import java.util.List;

public class PageBean {
	// 当前页数
	private Integer currentPage;
	// 每页条数
	private Integer pageSize;
	// 总条数
	private Integer totalCount;
	// 总页数
	private Integer totalPage;
	// 每页数据
	private List list;

	// 构造
	public PageBean(Integer currentPage, Integer totalCount, Integer pageSize) {
		this.totalCount = totalCount;

		this.pageSize = pageSize;

		this.currentPage = currentPage;
		// 如果没有指定显示哪一页,显示第一页
		if (this.currentPage == null) {
			this.currentPage = 1;
		}
		// 如果没有指定显示条数,默认每页显示3条
		if (this.pageSize == null) {
			this.pageSize = 3;
		}
		// 计算总页数
		this.totalPage = (this.totalCount + this.pageSize - 1) / pageSize;
		// 判断当前面
		// 		不能小于1
		if (this.currentPage < 1) {
			this.currentPage = 1;
		}
		// 		不能大于最大页码
		if (this.currentPage > this.totalPage) {
			this.currentPage = this.totalPage;
		}

	}

	public Integer getCurrentPage() {
		return currentPage;
	}

	public void setCurrentPage(Integer currentPage) {
		this.currentPage = currentPage;
	}

	public Integer getPageSize() {
		return pageSize;
	}

	public void setPageSize(Integer pageSize) {
		this.pageSize = pageSize;
	}

	public Integer getTotalCount() {
		return totalCount;
	}

	public void setTotalCount(Integer totalCount) {
		this.totalCount = totalCount;
	}

	public Integer getTotalPage() {
		return totalPage;
	}

	public void setTotalPage(Integer totalPage) {
		this.totalPage = totalPage;
	}

	public List getList() {
		return list;
	}

	public void setList(List list) {
		this.list = list;
	}

	public Integer getStart() {
		
		return (this.currentPage - 1) * this.pageSize;
	}

}