Javac.exe missing

Hi.
I just installed the JDK SE 5 on my system (Win XP home). I am unable to compile Java programs because the javac.exe file is missing.
Could there be something wrong with the distribution, or should I reinstall?
Kind regards, Sandeep.

The PATH variable is set to include the \bin subdirectory of Java\JDK etc.
I mean the actual javac.exe file is not there in \bin.
Kind regards, Sandeep.

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I want to know Can i change the output log language to some specific language like "English"
The problem is that i am using a Traditional Chinese Windows System...
The log output from javac.exe is in Tranditional Chinese, but i don't know why it always give some "???" in it.
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only some characters changed to ????Is there anything common with those characters, what comes to eg. their unicode or MS950 values?
and i just want a solution...You originally wanted to replace the current traditional chinese with english in compiler messages?
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cd lib
jar -xvf tools.jar
You should get a long list of files that are at the same time being extracted from tools.jar. After it has finished, you'll see that there are three directories under the jdk's lib directory that weren't there before: META-INF, COM and SUN. These directories contain the sun's jdk classes and the property files they need.
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public abstract class Proptest {
public abstract Class Proptest() {}
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To identify which of the property files is used by javac, add a unique identifier to the compiler.err.abstract.meth.cant.have.body of each property file. Also take notice which file contains the English "abstract methods cannot have a body" - you'll need this info later. (The files are text files and you can use just about any text editor to modify them - windoze's notepad may not be a good one, though, since the line separator the files have is \n and not \r\n, windoze's the default.)
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jar -cvf tools.jar com sun
This time you should see a list of files that are being included in the jar file (the list is the same one you saw before).
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javac Proptest.java
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Windows 8.1 installation first reboot 0xc000007b ntoskrnl.exe missing or contains errors

I'm trying to install Windows 8.1 (with updata 1) using UEFI on my Intel DP45SG.
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Hi Gi,
It might be caused by changes in Windows 8 PnP in which Boot Start Drivers are not installed by default.
Please try following
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Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact [email protected]

"Error running javac.exe compiler" when using ant to compile Eclipse plugin

Hi
I encounter an error "Error running C:\jdk1.5.0_06\bin\javac.exe compiler" when building my project using ant1.7.
My project has 10 eclipse plugins, and each plugin is compiled by invoking following ant target

<target name="compilePlugin">
     
     
     <delete dir="${param.plugin.dir}/${build.dir}" quiet="true"/>
     
     <delete file="${param.plugin.dir}/${param.plugin.targetJarFile}" quiet="true"/>
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     <javac      srcdir="${param.plugin.dir}/${param.plugin.src.dir}"
               destdir="${param.plugin.dir}/${build.dir}"
               failonerror="${javacFailOnError}"
               verbose="${javacVerbose}"
               debug="${javacDebugInfo}"
               deprecation="${javacDeprecation}"
          optimize="${javacOptimize}"
               source="${javacSource}"
               target="${javacTarget}"
               fork="${param.fork}" memoryInitialSize="256m" memoryMaximumSize="512m">
          <classpath refid="compile.classpath" />
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     <copy todir="${param.plugin.dir}/${build.dir}" failonerror="true">
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</target>
Since each of first 9 plugins contains less than 500 java source files, we always set "param.fork" to false when invoking this ant target.
For the 10th plugin, it has about 1000 source files. If we set "param.fork" to false, we will get the error "Error running javac.exe compiler". So we have to set "param.fork" to true when compiling it. This week, this plugin contains about 1250 files and we get the same error again when compiling it. I tried to increase the "memoryMaximumSize" to "768", but still couldn't get through it.
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Any help is highly appreciated.
Many thanks
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I encountered a very similar error and I was able to resolve it by removing the following parameters from the javac task:
fork="${param.fork}"
memoryInitialSize="256m"
memoryMaximumSize="512m"My values were not the same as yours, before I removed them, the values were set to:
fork="true"
memoryInitialSize="256m"
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Can't find Javac.exe

I'm new to Java (presently taking a class). I'm very confused and not getting too far. I'm running Win XP and have downloaded the latest version of Java J2SE1.4.0_01 (actually because of repeated problems, I've uninstalled and installed it a few times).
I can't find javac.exe anywhere on my c drive. I read a past forum posting describing the same problem which suggests downloading the latest version of SDK1.4. Isn't this what I have been downloading? Where can I find this download? If it isn't what I've been downloading, why do I need both and how would I have known this? I understand how to set the path once I get javac.exe but I'm becoming frustrated trying to obtain this file and move forward with my study of java. Thanks for the help.

If you need only to run a java application then you just need a JRE (Java Runtime Enviorment ). It contains everything that you wanted to run it.
But, if you want to develop some java application , then you needs something more... you need to have to compile those source files first... For this what you want is a SDK (Software development Kit)... Both is free.. You can download the 1.4sdk from http://java.sun.com/Download6
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OC4J infinity loop in javac.exe compiling JSP

Hi,
i have a very strange problem with OC4J 10.1.3.5.0 and one JSP page. It occurs under Windows/OC4J (dev environment) and under Linux/OAS (in production environment).
I try to explain as best as possible.
I have an application running OK in OC4J. In this application I have a simple JSP that contains very little java code, like this:
<%@ include file="/wtn/gen/checkAccess.jsp" %>
<%@page info="mySite.com"
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        import="java.util.Locale,
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<%
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<html>
<head>
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<body>
</body>
</html>Well, this JSP don't have any error and it works fine normally.
Problem ocurred:
When I delete the precompiled JSP from persistence/_pages for force .java generation and re-compilation, OC4J generate .java correctly and launch a javac.exe process for compile the servlet .java. This compilation through javac.exe don't finish, remain permanent running and the compilation of JSP does not finish.
The web application remain sleep while javac.exe process perform ghost operations. Finally (after 5 minuts aprox.) the OC4J stop waiting and show blank page.
The javac.exe remains alive in Operating System.
*(strange) Cause:*
I know the cause but I find no explanation :-(...
The cause is the import of com.mySite.LoginBussines. This class is correctly (compiled by Eclipse and Ant) and run OK when is called from a servlet or another class running in OC4J. But when this class is imported in a JSP, the javac go crazy and remain try to compile permanently...
*(very strange) Workaround:*
When I delete any code line of this class (one or more, no matter), arbitrary line of any method in this Class, recompile class and try again, it's work fine!
NOTE: the size of LoginBussines.class it's around 66.897 bytes. I don't know if it's relevant.
Please, someone know what's going on? Someone has encountered this problem?
Thank you so much!
Edited by: 890752 on 11-oct-2011 4:40
Edited by: 890752 on 11-oct-2011 6:08

Robert,
It appears that you have only installed the Java Runtime Environment (JRE). You need to install the Software Development Kit (SDK). Get version 1.4.2_05, since this is what your version of OC4J requires. Go to the following Web page
http://java.sun.com/j2se/1.4.2/download.html
And look for the "Download J2SE SDK" link -- which appears below the heading:
J2SE v 1.4.2_05 SDK
Good Luck,
Avi.

Javac.exe 1.4 is not finding user classes!!

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THE problem:
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well well... Am I under the stupidly mistaken impression that the Platform kit is not the same as the Software Development kit?
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C:\WINDOWS\SYSTEM32\javac.exe
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Javac.exe ERROR

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No. Is there a reason why you're using such an old version of Java?
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Hi,
I am trying to use GeoKettle exactly as mentioned at
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But when I try to build it, i am getting the following error.
[javac] Compiling 135 source files to D:\workspace\geokettle\classes-core
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most likely the javac executable is not on the system path. Try typing 'javac -version' in a command prompt and see what response you get.
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