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.

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Javac.exe Error Message

Hey there,
I recently Installed jdk1.2.2 on my home computer and now every time I go to compile a programe I get an error message which says Javac.exe has encountered a problem and needs to shutdown. Please contact windows then it says send error report or dont send?! I recently had to reinstall windows XP :( so would this have anything to do with it? Before I had to re-install XP jdk ran with no problems,
Anyone with any ans I'd be delighted to hear
Thanks!

Do you have a Pentium 4 (or new Celeron) computer? It could be a problem with symcjit.dll. Some versions do not work in Pentium 4 computers. Upgrade your JDK version, or make it work in interpreted mode (
before calling javac.exe, run the following command in the Command Prompt:
SET JAVA_COMPILER=none
Your compiling will be deadly slow, but it could work.

"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.

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.

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?

Error during java.exe, javac.exe,etc... execution

Hi,
I recently installed JSK1.2.1 on a PC with windows 2000.
I correctly configured the PATH and CLASSPATH.
When i compile or try to run java.exe, the system returns the following error in a window:
"javac.exe has generated errors and will be closed by windows. You will need to restart he program.
An error log is being created."
The execution in the dos window stops as if nothing has happenned but the compilation doesn't work.
What can be the problem?

Does anyone have an answer to this problem. I am experiencing the same problem trying to use jdk1.1.6 (I know it's old but the contract I'm working on is forcing me to use it). I have done everything possible with the PATH and CLASSPATH. Still, nothing works.

Javac.exe giving error

compilation error on jdk1.2.2
error statement " javac.exe has generated errors and will be closed by the windows. you need to restart the computer" .

Hello pallavi_29,
May want to consider giving some more infor mation. Such the operating system, does this happen with every file that you try to compile? What is the effect of restarting your computer?
-Merwyn,
Developer Technical Support,
http://www.sun.com/developers/support.

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.

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.

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.

Java.exe error - Exception in thread "main" java.lang.NoClassDefFoundError:

I've just started to take on java, and some examples from my learning source
show the
javac.exe fileincluded.java
to
java.exe fileincluded
method. Although I can compile fine, when I go to run I get a java.exe error - Exception in thread "main" java.lang.NoClassDefFoundError:.
I thought it was an environment variable problem as I'm running win xp.
I've gotten the bin directory included, and I've previously had visual studio .net installed
so the INCLUDE and LIB variables are set to those directories. I've tried to attach the java /lib and /bin directories by ";C:\PROGRAM FILES\JAVA\JDK1.5.0_02\LIB" etc,
and that didn't work. What can I do to fix this problem?

I get the I/O exception while reading: D:\Java\HelloApplet (The system cannot find the file specified). I have previously compiled HelloApplet.java into HelloApplet.class using javac.exe
the two include statements in the sample HelloApplet I'm using are
import java.applet.*;
import java.awt.*;
I also have a ComponentEventTest.java file which I've made into a class with these two
include statements:
import java.awt.*;
import java.awt.event.*;
I can however compile .java files which have no include statements.
I take it that my classpath is not set correctly. Like I said earlier, I'm using winxp
and trying to set the classpath variable under system. I have tried under user too. The path names I've tried setting are C:\Program Files\Java\jdk1.5.0_02\, C:\Program Files\Java\jdk1.5.0_02\lib, C:\Program Files\Java\jdk1.5.0_02\include, and C:\Program Files\Java\jdk1.5.0_02\;C:\Program Files\Java\jdk1.5.0_02\lib;C:\Program Files\Java\jdk1.5.0_02\include.
How can I correct this? If it's possible, I would like to set a variable in windows
versus having to type extra commands at the command prompt everytime I try
to run a java class with java.exe. Any help would be much appreciated

NewBie Question: Javac.exe Not recognized?

Hi I just want to try out my v first hello world program in MOTOROLA IDEN SDK For J2ME Tech (v 1.2)
I added a hello-world java file in the javafiles folder. Then when i try to build, an error occurred:
"start building...
compile D:\IAProject\TRIALCODEEXAMPLE\Example.java...
javac.exe is not recognized as an internal or external command,
operable program or batch file.
Building over"
Wat's the problem? Did i missed out any settings? THanks!!!!!

THX, but I have new problem with this:
Unhandled Exception in constructor java.lang.ClassNotFoundException: HelloWorld
Error creating MIDlet HelloWorld
sorce from UserGuide Motorola iDEN SDK..
package com.mot.j2me.midlets.helloworld;
import javax.microedition.lcdui.*;
import javax.microedition.midlet.*;
public class HelloWorld extends MIDlet {
private Form mainScreen;
private Display myDisplay;
HelloWorld() {
myDisplay = Display.getDisplay(this);
mainScreen = new Form("Hello World");
StringItem strItem = new StringItem("Hello", "This is a J2ME MIDlet."); mainScreen.append(strItem);
public void startApp() throws MIDletStateChangeException
{ myDisplay.setCurrent(mainScreen);
public void pauseApp() {
public void destroyApp(boolean unconditional) {
}Why this code doesn't work??

Javac flag error

I am trying to use the latest 10g.
I have configured it to use the java 1.5 sdk.
When i try to compile my application project it displays an invalid javac flag message.
I am clueless to why is it coming.
Any help?
"C:\Program Files\Java\jdk1.5.0\bin\javac.exe" -verbose -deprecation -source 1.5 -target 1.5 -encoding Cp1252 -g -classpath "C:\Program Files\Java\jdk1.5.0\jre\lib\rt.jar;C:\Program Files\Java\jdk1.5.0\jre\lib\i18n.jar;C:\Program Files\Java\jdk1.5.0\jre\lib\sunrsasign.jar;C:\Program Files\Java\jdk1.5.0\jre\lib\jsse.jar;C:\Program Files\Java\jdk1.5.0\jre\lib\jce.jar;C:\Program Files\Java\jdk1.5.0\jre\lib\charsets.jar;C:\Program Files\Java\jdk1.5.0\jre\classes;E:\JDev\jdev\mywork\My Applications Space\local\classes;E:\JDev\jdev\mywork\Sentinel Keys Toolkit\Client\resources" -sourcepath "E:\JDev\jdev\mywork\My Applications Space\local\src" -d "E:\JDev\jdev\mywork\My Applications Space\local\classes" @C:\DOCUME~1\MyMachine\LOCALS~1\Temp\javac35788.tmp
[1:56:36 PM] Compilation complete: 1 errors, 0 warnings.

Saurabh and user448590, I do see any "an invalid javac flag" or "some ill formed expression" here. If you refer to the last argument of the javac command "@C:\DOCUME~1\MyMachine\LOCALS~1\Temp\javac35788.tmp", please see the javac manual.

About javac.exe log

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.
Some words is missing...so i decide to use English as the output..
Can anyone help me on this ? THANKS

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?
Then, let's just do it. We will extract the files from tools.jar, replace the chinese property files with with english ones and re-create tools.jar.
In command prompt, go to the jdk installation directory (commonly none as java_home) Then do the following:
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.
Now comes the funny part: determining what files to modify. To make this easier, let's make a java app that does not compile:
// file Proptest.java
public abstract class Proptest {
public abstract Class Proptest() {}
The compiler will complain about the abstract method having a body. The error message is stored in the property "compiler.err.abstract.meth.cant.have.body". Search for files having that string in them; you might find several.
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.)
I'm sorry I can't post a sample of the file here; I'm afraid it would be against the sun lisence agreement :-(
Then "rebuild" tools.jar (yes, still in the java_home\lib directory) with the command
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).
Now try compiling the app written above:
javac Proptest.java
From the identifier you just added to the error message you can deduce what was the property file javac used. Rename that particular file to something else, make a copy of the file that contains the error messages in English, and rename the copy so that it'll have the name of the file that javac uses.
Again, rebuild tools.jar (you can omit the "v" in -cvf if you don't want to see the file list) and compile the app. Do you see the error message written in English?
The rest of the jdk tools still use Chinese; you might want to do the above hack to them, too.

Javac.exe: 'Access Denied'

I have thus far been able to open the directory to 'C:\Program Files\Java\jdk1.6.0_18\bin' and then 'dir' but when I type in javac "(program name).java" it reports:
_"SalutonMondo.java:1: error while writing Saluton: Saluton.class <Access is denied>_
_class Saluton {_
_^_
_1 error"_
I know neither why it will not let me compile nor what the error is. Any help?

Student77 wrote:
Ah, I figured it out--the area that my javac.exe was located was not the same as the file--I had to save the file in the same folder in order to execute it. ThanksStoring your source and compiled java classes in the same directory as javac.exe is not a good idea.
I'd recommend listening to ++pbrockway2.
Otherwise,
<music style="dramatic"/>
--kittens;{?

Javac.exe ERROR

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