Javac.exe

I am running Windows Server 2003 box (work related reasons). I use TextPad 4.7.3 for my editor. When I went to compile a java program it came back with the error:
C:\WINDOWS\SYSTEM32\javac.exe
The window cannot find the filed specified
I have tried to re-install but no luck, any suggestions?

Did you actually install the JDK/SDK or did you just install the runtime?
If you installed the JDK/SDK then add the bin where javac is to your PATH.

Similar Messages

"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"/>
     <mkdir dir="${param.plugin.dir}/${build.dir}"/>
     
     <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" />
     </javac>
     
     <copy todir="${param.plugin.dir}/${build.dir}" failonerror="true">
          <fileset dir="${param.plugin.dir}/${param.plugin.src.dir}" excludes="**/*.java, **/package.htm*" />
     </copy>
     <jar jarfile="${param.plugin.dir}/${param.plugin.targetJarFile}" basedir="${param.plugin.dir}/${build.dir}"/>
     <delete dir="${param.plugin.dir}/${build.dir}" quiet="true"/>
</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.
BTW, There are about 150 jar files in our classpath for compiling plugins. Do many jar files cause this problem?
Any help is highly appreciated.
Many thanks
Oceanman

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"
memoryMaximumSize="256m" Not sure why this fixed my problem but it did. I was using Ant 1.7 and Java 1.6_07 hope this helps.

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
After downloading and installing it, set the path corectly to include the bin directory of the installed folder..
Hope it helped
appu

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"
        language="java"
        errorPage="/wtn/gen/error.jsp"
        import="java.util.Locale,
                com.mySite.util.Util,
                com.mySite.Const,
                com.mySite.LoginBussines"%>
<%
    boolean b1 = LoginBussines.isB1(request) ? true : false;
    String domain = LoginBussines.getDomain(request);
    String url = "";
    if (b1) {
       url = "/web/" + locale + "/home.html";
    } else {
       url = "/web/" + locale + "/index.html";
%>
<html>
<head>
      <title>JSP Page</title>
      <% out.println("<meta http-equiv='REFRESH' content='0;url=http://" + domain + url + "' />"); %>
</head>
<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.

Error initializing ejb-module; Exception javac.exe not found under

Dear all,
I got followings error after i had tried to doing some lab.I had checked the folder "C:\Program Files\Oracle\jre\1.3.1" exists but missed but missing javac.exe. Could anyone can advice me what is going wrong?
04/04/14 16:44:20 Auto-deploying - web/WEB-INF/classes (No previous deployment found)...
04/04/14 16:44:20 Error instantiating application 'lab04' at file:/C:/share/oc4j
/labs/lab04/: Error initializing ejb-module; Exception javac.exe not found under
C:\Program Files\Oracle\jre\1.3.1, please use a valid jdk or specify the locati
on of your java compiler in server.xml using the <java-compiler .../> tag
Thanks in advance!
Best Regards,
Chris CHIU

Dear Chris,
The answer lies in the error message you got, namely:
please use a valid jdkAccording to your post, you don't have a JDK, you only have a JRE. The javac compiler is part of the JDK, it is not part of the JRE.
You can download the JDK from the J2SE Download Web page. Look for the Download J2SE SDK link -- do not choose the Download J2SE JRE link!
Good Luck,
Avi.

Javac.exe 1.4 is not finding user classes!!

! HELP !
Okay, I've used -classpath, i've messed around a bit with my settings, but for some reason, I can't get java to compile my code on my machine!!! I know it works, because I made and compiled it on machines on my school's account.
THE problem:
javac.exe keeps telling me that all of my own class objects are unresolved symbols, yet they ALL exist! and they are in the same directory! This happens with any outside class object reference in any class except Sun's predefined SDKs.
What the heck do I do?

well well... Am I under the stupidly mistaken impression that the Platform kit is not the same as the Software Development kit?
I think I am...I am going to download the 1.31a sdk, and if it works, then I'm going to slap myself. hard. REALLY hard. :) GRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRack!ACKACKACKACKACKACKACKACKACKACKACKACK!

Javac.exe ERROR

I am using JDK 1.2 and when I try to compile HelloWorld. Java using javac HelloWorld.java its pops up a window that says javac.exe has encountered a problem and needs to close. Any ideas on what the problem might be. Thanks!

No. Is there a reason why you're using such an old version of Java?
If not, possibly the easiest and quickest resolution would be to download and install a current version, either 1.4.2_06 or 1.5.0
There have been many improvements that might eliminate the problem.

GeoKettle: Error running javac.exe compiler

Hi,
I am trying to use GeoKettle exactly as mentioned at
http://209.85.229.132/search?q=cache:JHfrxCo7y0YJ:forge.osor.eu/docman/view.php/143/250/Kettle_Devel_guide_v0.odt+geokettle+spoon+java+api&cd=2&hl=en&ct=clnk&client=firefox-a
But when I try to build it, i am getting the following error.
[javac] Compiling 135 source files to D:\workspace\geokettle\classes-core
BUILD FAILED
D:\workspace\geokettle\build.xml:74: Error running javac.exe compiler
Can anyone guide me please to resolve this problem.
Best Regards
Tabbasum

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.
If it is something like 'javac is not a recognized...', locate where the JDK is installed and add its bin subdirectory to the PATH system variable. Restart any command prompt and type javac again.
You DID have a JDK installed, didn't you?

What happened to javac.exe ?

I have not used Java for long time, I downloaded the latest J2SE v1.4.1 today, but I couldn't find javac.exe under bin folder, anybody can tell me what happened to javac.exe now ?

Sun stopped including it due to a lawsuit by M$...
No, seriously, it's there.
Did you check in the \j2sdk1.4.1\bin directory? If it's not there,
it appears you didn't download the correct thing. Download from the column headed "SDK", not "JRE"

I don't have the javac.exe program file.....

i install the newest SDK on my windows xp, but when i tried to compile a program, it gives me an error message that says it can't find javac.exe, doing a search for it on my computer reveals no such file exist! what happened here?

Most likely, you downloaded the JRE instead of the SDK. On the download page there are 2 columns, with the one on the right being the SDK. That's what you need.

Just downloaded and Installed, can't find javac.exe

I think the subject pretty much says it. I've downloaded and installed java. Trying to follow the tutorial, but I cant find a "javac.exe" file on my computer?
What did i do wrong?

Dont be impressed of the download-time. Forte is very nice, but you need much RAM and a good processor. I use 300Mhz and 128Ram, in this case it was definately to slow. now I use JCreator 2.0... it�s free and has not such nice functions like Forte, but it opens in 3 seconds, while Forte always needed about 1 min !

Java JDK 6 without tools javac.exe and jdk.exe in bin directory!

I miss in the new current JDK 6 download the tools jdb.exe and javac.exe in the bin directory. Is that an incomplete download?
Wolfgang

I miss in the new current JDK 6 download the tools
jdb.exe and javac.exe in the bin directory. Is that
an incomplete download?You have downloaded a client version of java. You need a development version. You should probably go back and download again, this time making sure that you're getting the entire JDK

Unabled to set Environment Variables to point to javac.exe

Hi everyone
I have recently installed the Java Development Kit 6 in my Windows 7 Ultimate 32 bit installation but not been able to set the path to the javac compiler in the Environment Variables. What I have done so far is:
Opened the Environment Variables dialog obx
Created a new PATH to C:\Program Files\Java\jdk1.6.0_20\bin under User Variables
Added C:\Program Files\Java\jdk1.6.0_20\bin to the right end of the series of directories called 'Path' under System Variables
The instructions on this in the Oracle website seems to be written for Windows XP and apparently different setup is required for Windows 7. All I want to do is every time I launch Command Prompt, the Prompt knows where javac.exe is so it can execute it without my typing the path to the compiler.
A funny thing I noticed is that Windows 7 only has a variable called 'Path' under System Variables not under User Variables.
I would like to have as much as avice/instructions as possible because it has been nagging me for quite some time and irresolvable.
Thank you in advance,
Derek

Environment (env) variable names are case insensitive. So Path and PATH are the same.
The 'System' env vars are at the top.
The 'User' env vars inherit from the 'System' env vars. So every env var in 'System' is in 'User'. The 'User' exists so that two people on the same box can have different env vars.
If you want to use 'User' to set the Path then you would do it like this in the User panel.
<pre>%PATH%;C:\Program Files\Java\jdk1.6.0_20\bin</pre>
That would add your java path to the System one. If you are not concerned about users then you can just modify System.
You can verify the settings by opening a console window and typing the following.
<pre>set PATH</pre>
As for why it is isn't working.
- You forgot to say 'Ok'. I do this occassionally. Until you hit Ok on the Env Variables main box your changes do not get applied.
- Something is actually wrong with the path that you typed.
- Win 7 might not propogate into the OS like previous systems. I believe I have seen this. I know that the console shell was re-written for Win7 to make it a more integral part of the OS. Rebooting solves this and log in/out might as well. Or I might just be mistaken as well.

Can't find javac.exe file

After trying to install the J2EE sdk 3 times I'm at a lost. My C:\j2sdkee1.3.1\bin\ directory does not contain the javac.exe or java.exe files. I'm 100% sure I installed the sdk and NOT the JRE. For one reason or another the installations never give me those 2 files.
I made sure I've downloaded the whole installation file: j2sdkee-1_3_1-win.exe (16.9 MB).
The one odd thing is that when I search my computer, there are javac.exe and java.exe files in the "/jvm/bin" directory of dreamweaver application. I'n not sure if that has an effect on the installation.
Can anyone help me?

Note the following statement:
This release relies on the Java 2 SDK, Standard Edition ("J2SETM"). The following table lists the required version of the J2SE for each operating system that is supported with this release of the J2EE SDK.
on this page:
http://java.sun.com/j2ee/sdk_1.3/
(you need the j2se download...)

Problems to invoke java.exe from Java application, but ok for javac.exe??

How to invoke DOS application from Java application??
I try the following but it didn't work to invoke command prompt and java.exe, it
is working to invoke javac.exe. Any ideas why??
import java.io.*;
public class CallJavaTest
{ public static void main(String[] args)
{ try
Runtime.getRuntime().exec("C:\\WINNT\\System32\\cmd.exe"); //doesn't work!!
Runtime.getRuntime().exec("javac "+ "Test.java"); //it works!!
Runtime.getRuntime().exec("java "+ "Test"); //doesn't work!!
catch(IOException e)
System.out.println(e);

hi
String[] cmd = {"cmd","/c", "start",enteryourdoscommandhere};
Runtime rt = Runtime.getRuntime();
Process ps = rt.exec(cmd);
ps.waitFor();
int ev = ps.exitValue();
it works for my winXP.
hope it can helps and not too late ..

Javac.exe

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