java-7

I'm currently doing a small personal project that needs to display an extremely large amount of data, and I suddenly thought about implementing a form of zoomable user interface to allow the user to navigate around the large amounts of data. I'm aware of existing projects such as ZVTM and Piccolo2d which I'll probably end up using for the job, however I'm also quite tempted to embark upon writing my own. However, I'm a little unsure as how to start. From what I've been reading, it seems that projects like Piccolo2d were developed due to a lack of 'scene graph' management within Java, and

I am migrating Java 1.6 applets to Java 1.7. One of our applets periodically hits an URL to retrieve a dynamic status value: https://host/myapp/path/to/status And then it updates according to the latest status value. Since upgrading to Java 1.7, my client does not retrieve the latest status value. I see entries like this in the Java console: CacheEntry[https://host/myapp/path/to/status]: updateAvailable=true,lastModified=Wed Dec 31 17:00:00 MST 1969,length=82 It looks like the client has some cached value for that URL and isn't actually retrieving the latest dynamic value from the server. This

Update/status: Bug is reported to Oracle and currently still open/unresolved: https://bugs.openjdk.java.net/browse/JDK-8054325 I've found a strange bug, which only manifests itself on Java 7 and 8 on OS X, not in Java 6, neither on Java 7 Windows. Below is the extracted bug removing as much unneeded code as possible. It leaves us with a small table and a button, where we can drag the cell from the table on top of the button. In our production code we are using a TransferHandler that has COPY_OR_MOVE as source action. We have two targets, one DropTarget accepts as MOVE , the other accepts as

I accidentally upgraded the whole system in ubuntu 14.04. I am trying to deploy a war file which requires JDK7. I tried to install JDK7 and use it as default root:floyd~# update-alternatives --config java There is only one alternative in link group java (providing /usr/bin/java): /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java Nothing to configure. but it is not installing as well. It gives following error while trying to install JDK 7. root@floyd:~# apt-get install openjdk-7-jdk Reading package lists... Done Building dependency tree Reading state information... Done Package openjdk-7-jdk is

As i understand it, Java 7's suppressing exceptions feature is an automatic one. In other words, exceptions happening in what used to be a finally block in 6 are automatically suppressed in favor of exception that took place upon resource allocation. So, in this example things may go wrong with a) opening a resource and b) closing a resource or c) possibly both. As i understand it, Java 7 will throw exception that took place upon opening, whom we can ask to give us suppressed exceptions, which took place elsewhere. try (BufferedReader inputReader = Files .newBufferedReader(Paths.get(new URI(

We recently configured our Oracle database to be in so-called native encryption (Oracle Advanced Security Option). As development goes on, some SQL queries are sometimes badly-written and so an error should be returned by the JDBC driver ( ojdbc7 v12.1.0.2 ). Instead of that, a Checksum Fail IOException is raised. So the problem is that we do not have anymore any syntax or database integrity error at all. The problem is the same in SQL GUI editors, like DBeaver , SQLDeveloper or SQuirrel . It's a known issue in the Oracle JDBC thin driver. If you can use SSL instead of ASO then this problem

I got this error when creating a final double using underscores to make the double more readable. It was declared in a run() method. public void run() { final double nanoSeconds = 1_000_000_000.0 / 60.0; } I'm using IntelliJ IDEA 12. In IntelliJ IDEA you have to change Project language level in project settings to 7.0 level: Yes..you need to change the default language level settings if you are using and IDE. For IntelliJ users it is under File --> Project Structure --> Projects. I found with my project that had modules, I had to do this in the modules settings as well. 来源： https:/

OK, here's a very curious Java 7 language puzzle for the JLS specialists out there. The following piece of code won't compile, neither with javac nor with Eclipse: package com.example; public class X { public static X com = new X(); public void x() { System.out.println(com.example.X.com); // cannot find symbol ^^^^^^^ } } It appears as though the member com completely prevents access to the com.* packages from within X . This isn't thoroughly applied, however. The following works, for instance: public void x() { System.out.println(com.example.X.class); } My question(s): How is this behaviour

I have a small image processing application which does multiple things at once using SwingWorker. However, if I run the following code (oversimplified excerpt), it just hangs on JDK 7 b70 (windows) but works in 6u16. It starts a new worker within another worker and waits for its result (the real app runs multiple sub-workers and waits for all this way). Did I use some wrong patterns here (as mostly there is 3-5 workers in the swingworker-pool, which has limit of 10 I think)? import javax.swing.SwingUtilities; import javax.swing.SwingWorker; public class Swing { static SwingWorker<String, Void>