I'm running a test case in debug mode on a new installation of Netbeans 8.2 with a break point on a myId field.
#Test
public void testCreateDocumentSecurityNullRequest() throws Exception {
final Integer myId = 1;
myRequest request = null;
mockMvc.perform(post("/pathTo/apply/" + myId).contentType(contentType).content(json(request)))
.andExpect(jsonPath("$.code", is("400")));
}
I know the test is executed because I see the test results, but the debugger doesn't stop on my break point.
The Debugger Console shows:
Listening on 23206
User program running
LineBreakpoint myTest.java : 'line #' successfully submitted.
User program finished
I don't understand why it's not stopping and just continuing? I tried it in Eclipse and it stops and let's me continue as I would expect. I'm sure I'm just misunderstanding something simple but I read documentation and nothing sticks out to me. I also looked at some other Stack Overflow posts that were similar but those didn't seem to fit my issue.
I had a similar issue. NetBeans 6.5 won't stop on a breakpoint in my code.
I figured that while working with a project I changed source location (was: "project.6.5", I changed it to just "project").
NetBeans remembered the old source location ("project.6.5") which became non-matching as I ran code from "project". A breakpoint was displayed correctly (red square), but won't stop.
I opened Window > Debug > Sources and checked current code ("project"). Breakpoint became a broken square and it wrote in logs about source not matching.
After I unchecked old source ("project.5.6") it started working fine again.
...\AppData\Roaming\NetBeans\8.2\config\Services\org-netbeans-modules-debugger-Settings.properties - remove all 'breakpoint' lines from this file.
I have develop a simple java program to run APDU commands. It is working fine.
The file structure is
/moc
/omnikey
--Applet.java
--API.java
/omnikey.api
/omnikey.util
... another 3 more packages ...
Now, I want to extract all those extra packages to a new project and leave only the omnikey package (with Applet.java and API.java) to create a .jar with the needed functionality.
So I created a new project, copied all files, fixed the packages references and linked the external jars needed... and now it doesn't work...
The "new" file structure is like this
/apdu
/apduservice
/api
... files ...
/util
... files ...
/moc
/omnikey
Applet.java
API.java
For some reason, the execution hangs when I declare something from the apdu project. If I do
System.out.println("flag 1");
try {
apduservice.api.MocService ser = new apduservice.api.MocService(null);
} catch (CardServiceException e) {
e.printStackTrace();
}
System.out.println("flag 2");
I get no error trace and the output is flag 1. The execution doesn't stop until force it.
If I try the same thing with the previous configuration everything works.
System.out.println("flag 1");
try {
omnikey.api.MocService ser = new apduservice.api.MocService(null);
} catch (CardServiceException e) {
e.printStackTrace();
}
System.out.println("flag 2");
//output flag 1 and flag 2
I'm not sure where the error might be. I tried exporting the second project as jar, as runnable jar, reference it as a project inside Eclipse, and nothing, the same result. I've tried searching for a solution, but since I get no error, it's hard to know what to look for.
If someone could shed a light I'll be grateful.
PD: doesn't seem to be an Eclipse problem, I've referenced projects in other projects and it has work fine...
PD2: I'm not using Maven or anything like that to handle references. I rather not to, at least for now.
Decided to answer this since there's no logical reason for this to happen.
Solution:
change workspaces, open the two projects and link them. Eclipse was just having one of its days.
I have developed a plugin in which a java application is launched.In the console log of this application i want to be notified when new lines added.I have searched internet and found org.eclipse.debug.ui.consoleLineTrackers extention point.I have used it like below.
<extension point="org.eclipse.debug.ui.consoleLineTrackers">
<consoleLineTracker
id="com.plugin.util.MyConsoleTracker"
class="com.plugin.util.MyConsoleTracker"
processType="MyProcessType">
</consoleLineTracker>
</extension>
Then in my java code i have launched application like below.
config.setAttribute(IJavaLaunchConfigurationConstants.ATTR_CLASSPATH, classpath);
config.setAttribute(IJavaLaunchConfigurationConstants.ATTR_DEFAULT_CLASSPATH,false);
config.setAttribute(IJavaLaunchConfigurationConstants.ATTR_MAIN_TYPE_NAME,MAIN_CLASS_NAME);
config.setAttribute(IProcess.ATTR_PROCESS_TYPE, "MyProcessType");
ILaunch launch = DebugUITools.buildAndLaunch(config, ILaunchManager.DEBUG_MODE,new NullProgressMonitor());
After these, i can launch my application successfully however my class com.plugin.util.MyConsoleTracker is never called.I cant see any error log either.
can anybody please tell me what i am missing here?
For an example you can see how it is made in m2e-core:
http://git.eclipse.org/c/m2e/m2e-core.git/tree/org.eclipse.m2e.launching/src/org/eclipse/m2e/internal/launch/MavenConsoleLineTracker.java
and
http://git.eclipse.org/c/m2e/m2e-core.git/tree/org.eclipse.m2e.launching/plugin.xml
Methed of YourConsoleLineTrackers should be evoked each time when a new line is showed up in console. Inside Line Tracer you have to distinguish to which process this line belongs to.
Marek
this has been a crappy day, besides the IDE not compiling/deploying because of this bug and waisting valuable time, I finally get it to deploy it suddenly I start getting this weird message (after compiling and running it several times):
T:\Users\Triztian\Documents\RHT System\RHTUBSDB\src\java\controllers\OrderSearch.java:64: cannot find symbol
symbol : method metadata(java.lang.Long)
location: class BO.CoverForm
OrderExtraInfoDTO foundInformation = frmCover.metadata(foundOrder.getReferenceNumber());
it is my understanding that this means that my method isn't declared, but thats not the situation as my method is clearly declared and coded.
CoverForm.java:
public OrderExtraInfoDTO metadata(Long ReferenceNumber) {
OrderExtraInfoDTO foundInformation = new OrderExtraInfoDTO();
try{
foundInformation = lnkAddInformation.fetchInformation(ReferenceNumber);
} catch (DAOException daoe) {
this.setError("additional_information", daoe.getMessage());
}
return foundInformation;
}
And the servlet that calls the CoverForm.java method.
OrderSearch.java (Extends HttpServlet):
CoverDTO foundCover = frmCover.search(foundOrder.getReferenceNumber());
OrderExtraInfoDTO foundInformation = frmCover.metadata(foundOrder.getReferenceNumber());
UpgradesDTO foundUpgrades = frmUpgrades.search(foundOrder.getReferenceNumber());
I've tried renaming the method and didn't have any success, any help is truly appreciated as I'm getting frustrated with NB 6.9.1 because of some crashes and another weird bug (might catch an entomologist's attention) which locks the editor and displays a message saying: "Refactoring cannot be done in the given context" whenever I press delete, forcing me to restart the IDE.
EDIT
Ok, so I've removed the classes that I posted and merged them in a more appropriate place, however I still get that silly symbol not found error but on a different symbol(another method) this time.
Netbeans 6.9.1 is a very robust IDE. You may run into problems like the one you mention above, if:
You run your NB without enough disk space available. Make sure that you have at least 2 GB free on your file system for the necessary temporary files.
You have a very large number of projects active in your project space. Reduce this number to just the needed projects, by deleting and reopening more often.
Hope this helps ...
I have an application which is running on tomcat, one of the methods is, creating a simple thumbnail from an jpeg image. The functions works fine offline and a week ago also on tomcat. But now i get the following error:
java.lang.NoClassDefFoundError
java.lang.Class.forName0(Native Method)
java.lang.Class.forName(Class.java:164)
java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment.java:68)
java.awt.image.BufferedImage.createGraphics(BufferedImage.java:1141)
eval.impl.ImageEval.getThumbnail(ImageEval.java:155)
eval.impl.ImageServlet.doGet(ImageServlet.java:79)
javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
I don't think that i have change anything what should influence this (actually i didn't change the function at all according to the svn repository), so it must be a library problem. But i can't figure out what is missing.
Here are the actual lines from the getThumbnail function, where the error occures:
BufferedImage thumbImage = new BufferedImage(thumbWidth,
thumbHeight, BufferedImage.TYPE_INT_RGB);
Graphics2D graphics2D = thumbImage.createGraphics();
graphics2D.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
RenderingHints.VALUE_INTERPOLATION_BILINEAR);
graphics2D.drawImage(simage, 0, 0, thumbWidth, thumbHeight, null);
[edit] I decided to update the problem description a little.
Yes it seems that he can not find some class from java.awt or one related to that. But they do exist on the server in the jvm. Java headless mode doesn't solve the problem.
In another project the exact same code, but inside an axis2 webservice on this server is working fine.
[/edit]
It seems like you've change the configuration of Tomcat.
Either you've changed to a l{0,1}[iu]n[iu]x box or installed on a virtual machine with different security control than the one where you test it.
Apparently the
GraphicsEnvironment.getLocalGraphicsEnvironment()
Is trying to access the property: java.awt.graphicsenv
Which may return null or some non existing class name which is then loaded and throws the ClassNotFoundException. 1
The solution seems to be specifying the "java.awt.headless" property.
This is a similar question: java.awt.Color error
Try this search , it shows similar situations as your.
I remember there was something in the sun bugs database too.
Post the solution when you find it!
1.GraphicsEnvironment.java
EDIT
It is not eclipse!!
In my original post there is a link to the source code of the class which is throwing the exception.
Since I looks like you miss it, I'll post it here for you:
public static synchronized GraphicsEnvironment getLocalGraphicsEnvironment() {
if (localEnv == null) {
// Y O U R E R R O R O R I G I N A T E S H E R E !!!
String nm = (String) java.security.AccessController.doPrivileged
(new sun.security.action.GetPropertyAction
("java.awt.graphicsenv", null));
try {
// long t0 = System.currentTimeMillis();
localEnv =
(GraphicsEnvironment) Class.forName(nm).newInstance();
// long t1 = System.currentTimeMillis();
// System.out.println("GE creation took " + (t1-t0)+ "ms.");
if (isHeadless()) {
localEnv = new HeadlessGraphicsEnvironment(localEnv);
}
} catch (ClassNotFoundException e) {
throw new Error("Could not find class: "+nm);
} catch (InstantiationException e) {
throw new Error("Could not instantiate Graphics Environment: "
+ nm);
} catch (IllegalAccessException e) {
throw new Error ("Could not access Graphics Environment: "
+ nm);
}
}
return localEnv;
}
That's what gets executed.
And in the original post which you don't seem to have read, I said the code is accessing the property "java.awt.graphicsenv"
If that other project using axis doesn't have the same problem it may be because it may be running in a different tomcat configuration or the axis library allowed the access to that property. But we cannot be sure. That's pure speculation. So why don't you test the following and see what gets printed:
String nm = (String) java.security.AccessController.doPrivileged
(new sun.security.action.GetPropertyAction
("java.awt.graphicsenv", null));
System.out.println("java.awt.graphicsenv = " + nm );
It it prints null then you now what the problem is. You don't have that property in your system, or the security forbids you do use it.
It is very hard to tell you from here: "Go and edit file xyz and add : fail = false" So you have to do your work and try to figure out what's the real reason.
Start by researching what's the code being executed is ( which I have just posted ) and follow by understand what it does and how does all that "AccessController.doPrivileged" works. (You may use Google + StackOverflow for that).
We had a similar issue and after much trouble shooting it was identified to be related to the java.awt.headless property. The issue was resolved by explicitly setting the JVM option to
-Djava.awt.headless=true
It was running a week ago, and now it is not.
THEREFORE, YOU CHANGED SOMETHING BETWEEN "working" and "not working".
Go back to the working config (if you can), and rigorously track what you changed. If you don't have a backup of the working config, then meticulously go back through what you've done between working and non-working until you find what you changed.
It may not be code - it could be a config file, etc.
Best of luck,
-R
Is this server running java in server mode - I hear that doesn't load in the AWT classes.
If you are deploying this on *nix, and you don't have an X window system running anymore, that could explain it. Even if you do, if you aren't exporting the DISPLAY system variable to the process that starts the JVM, or if you are but it is not actually valid, it could cause such an issue.
That would at least explain why you didn't change any configuration in tomcat, but still have a problem.
If your NoClassDefFoundError has no message at all, then this means two things:
The JVM has already tried and failed to load a class. Usually, this means the JVM was unable to complete static initialization for that class, i.e. assign values to any static fields and run any static { } blocks. Often, this is because the classes necessary to do this static initialization are missing.
You're using Java 5, not Java 6. (In Java 6, you get a 'Could not initialize class xyz' message instead.)
The problem class appears to be the one whose name is the value of the system property java.awt.graphicsenv. I would start by finding out the value of this property. What happens when you try to instantiate this class?
Since you're getting NoClassDefFoundError from inside the AWT code, it looks like Java is failing to load the X Windows libraries. Note that even if you're running in headless mode ($DISPLAY not pointing to an X Windows server), AWT still needs some subset of the X11 libraries in order to render images. See, for example, this reference:
http://javatechniques.com/blog/linux-x11-libraries-for-headless-mode
If something stopped working and your Java code didn't change, it's possible that the X11 libraries got moved or uninstalled on your machine, or that for some other reason your LD_LIBRARY_PATH environment variable doesn't point to them anymore.