Bill Clar

Too little reward for such a monumental task. I'll keep DA.jar in multiple places until such time that I can see about porting this application to a reputable app server.

I have an EAR project in Rational App Developer (8.0.4) that utilizes a utility jar (DA.jar). DA.jar resides in a directory that's a shared library reference for Websphere. This works without issue.

I would like to move DA.jar to my EAR project, but doing so gives me a NoClassDefFoundError. I've tried putting DA.jar in the web module's WEB-INF/lib directory; I've tried declaring it in the Ear Deployment Assembly screen. Nothing works.

My classloader policy is parent first for both the server and application.

Ahsan,

All Toastmasters clubs have an open door policy for guests. You can show up at any meeting without applying for membership. This allows you to see what the club is about and if it's a right fit for you.

Hello,

I'm new to EJBs and they appear to have auto-generated code. I have the following classes:

WhoIsApplyingEJB.java
WhoIsApplyingEJBBean.java
WhoIsApplyingEJBHome.java

EJSLocalStatelessWhoIsApplyingEJB_fc0e15cc.java
EJSLocalStatelessWhoIsApplyingEJBHome_fc0e15cc.java
EJSLocalStatelessWhoIsApplyingEJBHomeBean_fc0e15cc.java

What procedure triggers the creation of the EJS* files? I tried googling to no avail.

It's legacy code and it runs under my workspace but not my coworkers.

getValue() returns an Object.

It's legacy code. I don't know their intentions.

Hello,

I'm getting an error: BigDecimal incompatible with java.lang.Long, when I try to run the following code:

Long value = ((BigDecimal) map.get("BUS_FN_ID")).longValue();

Can a BigDecimal be cast to a Long in Java 7? Will it throw an error in Java 6?

FYI, this is legacy code.

Thanks Stefan!

I have a servlet that is not mapping to my URL:

<servlet-mapping> <servlet-name>view</servlet-name> <url-pattern>/View/*</url-pattern> </servlet-mapping>

When I try to call the Servlet from a JSP:

<a href="/View/viewFlow?V1">V1</a>

The resulting link is http://localhost:9080/View/viewFlow?V1. It's bypassing the project name. The link should be http://localhost:9080/TestFlow/View/viewFlow?V1.

Any suggestions?

fred rosenberger wrote:

Bill Clar wrote:...look for any number divisible by 4 surrounded by brackets.

ughh...Why in the world would you use a regex to do this?

It's a challenge from a coding site. It had to be done by regex.

I have a regular expression that looks for any number divisible by 4 surrounded by brackets.

I have the working regex, but I'm unsure why it works and mine doesn't.

String test = "[2014]"; // Not divisible by 4. Should not match. Pattern modWorking = Pattern.compile( "\\[(\\d*(([02468][048])|([13579][26]))|[048])\\]"); Pattern modMine = Pattern.compile( "\\[(\\d*(([02468][048])|([13579][26])|([048])))\\]"); Matcher matcher = modWorking.matcher(test); if( matcher.find() ) System.out.println("Working - True"); else System.out.println("Working - False"); matcher = modMine.matcher(test); if( matcher.find() ) System.out.println("Mine - True"); else System.out.println("Mine - False");

Output: Working - False Mine - True

My pattern doesn't work. It accepts [2014] as a valid match.

I use an even grouping of conditions: (condition1|condition2|condition3), but it fails. The working solution utilizes ((condition1|condition2)|condition3). I don't understand the difference in the logic considering it's an OR condition.

Is there a way for Javascript (in Firefox) to detect that the user has exited the browser or tab? To be more specific, exiting by clicking the red "X" in the upper right corner?

I'm aware of the window event 'onbeforeunload', but my situation is a bit more complicated. I have a webpage that displays an embedded pdf. This pdf has several actions that submit its form to the server. So, if I use 'onbeforeunload', any submission through the pdf will trigger this function. I wish to avoid that scenario.

What I'm trying to accomplish is prompting the user with a "You haven't saved your changes" message if they try to leave the page. The pdf has a submit button for "Save" so I do not wish to prompt the user with the previously stated message.

I've been googling left and right and the closest I've come to a solution is here. This didn't work for me. The code specifically mentions microsoft in the comments so I have to assume it's designed for IE.

Oh my stars and garters. I assumed the META-INF directory had to reside under WEB-INF.

Thank you Tim, you are a saint!

I have a peculiar problem. My Context uses a JDBCRealm for authentication. When I put my Context in conf/server.xml, I can login without a problem. But, I'm told this is a bad practice and that I should place my Context in /webapps/Injunction/WEB-INF/META-INF/context.xml.

I've done this. And now my login fails. Same Context. Two different locations.

I've googled left and right but no one else has experienced this issue. I'm using Tomcat 7.0.39. I upgraded to 7.0.55 to see if it would help, but the problem persists.

Here is my Context:

<Context docBase="Injunction" path="/Injunction" reloadable="true"> <Realm className="org.apache.catalina.realm.JDBCRealm" digest="MD5" driverName="com.informix.jdbc.IfxDriver" connectionURL="jdbc:informix-sqli://pegasus2.ccsc.seminoleclerk.org:1540/civil:INFORMIXSERVER=pegasus2_tcp" connectionName="tomcivil" connectionPassword="tomcivil" userTable="user_password" userNameCol="user_login" userCredCol="secured_password" userRoleTable="users_roles" roleNameCol="role_name" /> </Context>

If I can't resolve this problem, I'll have to maintain the Context in the server.xml and manually deploy the webapp. Turns out you can't use the HTML manager gui if you've put the Context in the server.xml.

Fixed. I found a solution for a Nimbus specific renderer: https://code.google.com/p/jsparklines/source/browse/trunk/src/main/java/no/uib/jsparklines/extra/NimbusCheckBoxRenderer.java?r=77

I'm displaying a table with several read-only pieces of data, and a checkbox field that toggles the row color. The background color for the checkbox is not toggling correctly.

I put together a SSCCE:

import java.awt.Color; import java.awt.Component; import java.util.ArrayList; import java.util.List; import javax.swing.*; import javax.swing.UIManager.LookAndFeelInfo; import javax.swing.table.TableCellRenderer; public class TablePanel extends JPanel { private List<ModelBean> modelList; private JTable table; private Color background = new Color(0x99, 0xCC, 0xFF); private Color highlight = new Color(0x00, 0x33, 0xFF); public TablePanel() { buildScreen(); } public void buildScreen() { modelList = new ArrayList<ModelBean>(); modelList.add(new ModelBean("1", "Line One", false)); modelList.add(new ModelBean("2", "Line Two", true)); modelList.add(new ModelBean("3", "Line Three", false)); MyModel model = new MyModel(modelList); table = new JTable(model) { @Override public Component prepareRenderer( TableCellRenderer renderer, int row, int column) { Component c = super.prepareRenderer(renderer, row, column); ModelBean oBean = modelList.get(row); if( oBean.getIsFlagged() ) c.setBackground(Color.PINK); else c.setBackground(getBackground()); return c; } }; table.setBackground(background); table.setShowGrid(true); add(table); } public static void main(String args[]) { try { for( LookAndFeelInfo info : UIManager.getInstalledLookAndFeels() ) { if( info.getName().equalsIgnoreCase("Nimbus") ) { UIManager.setLookAndFeel(info.getClassName()); break; } } } catch (Exception e) { } JFrame frame = new JFrame("SCCSE"); frame.setSize(400, 300); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.add(new TablePanel()); frame.setVisible(true); } } import java.util.List; import javax.swing.table.AbstractTableModel; public class MyModel extends AbstractTableModel { private List<ModelBean> modelList; public MyModel(List<ModelBean> list) { modelList = list; } @Override public Class<?> getColumnClass(int columnIndex) { if( columnIndex == 2 ) return Boolean.class; else return String.class; } @Override public int getColumnCount() { return 3; } @Override public String getColumnName(int columnIndex) { switch( columnIndex ) { case 0: return "Number"; case 1: return "Description"; case 2: return "Flag?"; } return "Unknown"; } @Override public int getRowCount() { return modelList.size(); } @Override public Object getValueAt(int rowIndex, int columnIndex) { ModelBean bean = modelList.get(rowIndex); switch( columnIndex ) { case 0: return bean.getNumber(); case 1: return bean.getDescription(); case 2: return bean.getIsFlagged(); } return "Unknown"; } @Override public boolean isCellEditable(int rowIndex, int columnIndex) { // Only the flagged field is editable. return (columnIndex == 2); } @Override public void setValueAt(Object value, int rowIndex, int columnIndex) { if( columnIndex == 2 && value instanceof Boolean ) { ModelBean bean = modelList.get(rowIndex); bean.setIsFlagged((Boolean) value); fireTableRowsUpdated(rowIndex, rowIndex); } } } public class ModelBean { private String number; private String description; private boolean isFlagged; public ModelBean(String number, String description, boolean isFlagged) { this.number = number; this.description = description; this.isFlagged = isFlagged; } public String getNumber() { return number; } public String getDescription() { return description; } public void setIsFlagged(boolean value) { this.isFlagged = value; } public boolean getIsFlagged() { return isFlagged; } }

If I comment out the Nimbus look and feel, it works as expected. I googled this problem and found one possible solution on Stack Overflow. Their suggestion is:

It's a bug in the synth-installed renderer, quick hack is to force the rendering checkbox opacity to true:

((JComponent) table.getDefaultRenderer(Boolean.class)).setOpaque(true);

I tried using this line and setting the opacity to true, but it renders the background white. I'm using Java 1.7.0_25.