Runtime Environment

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ZipException when running TZupdater for JRE 1.3.1

Greetings:When attempting to run TZupdater against rt.jar in a W2K-SP4 environment, I receive the following...C:\Program Files\JavaSoft\JRE\1.3.1\lib>java -jar tzupdater131.jar -u > javaupdate.txtBacking up C:\PROGRA~1\JavaSoft\JRE\132E6D~1.1\lib\rt.jar to ...

7 answers | 1531 bytes |

ZipException

I created an executable jar file in XP and just threw it on an NT box, downloaded the jre1.4, updated the path variable and I'm getting this error:Exception in thread "main" java.util.zip.ZipException: invalid END header (bad central directory offset)at java.util.zip.ZipFile.open(Native ...

1 answers | 754 bytes |

Yet another File.delete() problem

Hey all.Well, I've looked through and it looks like I'm not the only one having problems with the File.delete() call. The code below is part of a MUCH larger system that has a lot of streams being passed back and forth. I've checked everywhere that I create and work with the Streams and it ...

4 answers | 1928 bytes |

Y objects in java are created only on heap n not on stack ?

Hi ,I need a answer to the question " why all the objects are created on heap only in java and not on stack " ?In java a object is created when we specify new i.e. for example,consider the following cases.1.Vector v = new Vector();here object is created and the reference to this object is ...

4 answers | 1033 bytes |

XXloggc: creating an empty file

I set the following parameters and while the gc.log file is created, it's empty:-server -Xmx1024m -verbose:gc -XX:+PrintGCDetails -XX:+AggressiveHeap -Xloggc:"C:\j2sdk1.4.2_09\gc.log"I am running 1.4.2, as you may have guessed from the file location, on a 32Bit Win 2K3 Server machine. I ...

2 answers | 927 bytes |

XX:-HeapDumpOnOutOfMemoryError in 1.4.2_13

We are using the sun 1.4.2_13 jre for our application.We want to get a heap dump file when an OutOfMemoryError occurs and the Hotspot documentation says that this option (-XX:-HeapDumpOnOutOfMemoryError) was introduced in 1.4.2 update 12 -- so it sounds like it is a perfect solution to the ...

5 answers | 606 bytes |

Xvfb does not work

I'm now building a JAVA environment in an ARM/Linux system. I have successfully installed J2SE 1.3.1 and the Xvfb. Trying to run a java application to display a window , I found although there is no error messages at all, the window just can not be shown, and it seems that the java application ...

2 answers | 324 bytes |

xterm and gnome can't find Java

I just installed Sun's JRE (v1.5.0_01) on Linux. I updated my /etc/profile to make sure the PATH includes my Java bin directory.When I open a GNOME Terminal, and try to run a Java app, it can't find my JRE. Apparently, neither GNOME Terminals nor X Terminals run /etc/profile, so my path ...

8 answers | 921 bytes |

Xrs option and shutdown hooks

I want to use a Java program as a service on Windows NT. I pass the -Xrs option to the VM in order to prevent it from stopping when a logoff signal is sent by the system. A problem occurs when I try to add a shutdown hook in my Java program, the following error is printed and the JVM ...

2 answers | 708 bytes |

XP won't boot. Help please!

I recently installed JRE 1.4.2 on 40+ PCs. Everyone works fine execpt for one. It won't boo to XP. The XP loading screen appears and it looks like windows will start, but then it reboots. I can't go into safe mood either.Anyone have any suggestions on how I can fix this pesky problem?Thanks ...

1 answers | 347 bytes |

XP SP2 JVM Memory Allocation Problem

After installing XP Service Pack 2 our 1.4.2_08 application has odd memory behavior. On the command line we specify 64MB initial memory with a growth to a maximum of 200MB. The JVM won't grow above 80MB after we installed XP Service Pack 2 on the system. At 80MB the application starts frequent ...

2 answers | 599 bytes |

XP install appears to work but no coffee cup or java

I have tried a number of times to install java through internet explorer, firefox, and the offline download file. The installation appears to work completing OK. However java apps still don't work and there is no coffee cup in control panel. Sites that require java tell me I need to download ...

3 answers | 603 bytes |

Xmx<size> issues

Quick Overview of Application:I have wrote an applet that uses JAI to display and manipulate images on screen. At any point in time there will be 2 - 15 1MB+ images loaded into memory and being displayed for editing. I have managed to optimize it down to use about 150MB - 300MB of ram.--When I ...

1 answers | 1473 bytes |

xms & xmx

I am getting OutOfMemory errors qith JRE 1.4The application is launched from a applect on a remoter site this applet in turn launches the local .jar files previously downloaded.This application give OutOfMemory errors when using JRE 1.4 but not 1.3 I have to use 1.4 due to Proxy Authentication ...

1 answers | 593 bytes |

xml schema api and j2se 1.5

Hi !i'm using xml schema validation and jre 1.5, it works fine when i use it alone in my application.in this application i also need to use xquery transformation using SaxonB 8.5.1, and when i include the saxon librairies in my classpath, xml validation doesn't work anymore.here is my ...

0 answers | 6943 bytes |

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