Environment Variables length in W2K

Hello All,
I am using Windows 2000 , sp2. while developing java applications If I try to put many jars in the classpath, I get an error message "The input line is too long."
Is there any way to increase the capacity of the windows shell to allow more jars to be added to the classpath.
Any help would be highly appriciated.
regards,
Abhishek.

This may not fix your original problem, but it might help Scott and others with Win2K environment variable problems. M$ knowledge base article Q158141 explains how to allow more size for an environment variable. See http://support.microsoft.com/default.aspx?scid=KB;EN-US;Q158141&.
Basically it says edit the System environment variable ComSpec to add a parameter /e:nnnn, so if you change
ComSpec C:\WINNT\system32\cmd.exe
to
ComSpec C:\WINNT\system32\cmd.exe /e:4096
it will let you have environment variables up to 4096 characters. It's good up to 32768.

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                     from /idsdk7/source/public/includes/PMMatrix.h:33,
                     from /idsdk7/source/precomp/common/ShukHeaders.cp:53,
                     from /idsdk7/source/precomp/gcc/PluginPrefix.pch:30,
                     from <command-line>:0:
    /idsdk7/source/public/includes/MSystemUtils.h: In function 'void InvertSysRgn(OpaqueGrafPtr*, const __HIShape*)':
    /idsdk7/source/public/includes/MSystemUtils.h:382: warning: 'InvertRgn' is deprecated (declared at /System/Library/Frameworks/ApplicationServices.framework/Frameworks/QD.framework/Headers/ QuickdrawAPI.h:1831)
    /idsdk7/source/public/includes/MSystemUtils.h:382: warning: 'InvertRgn' is deprecated (declared at /System/Library/Frameworks/ApplicationServices.framework/Frameworks/QD.framework/Headers/ QuickdrawAPI.h:1831)
    /idsdk7/source/public/includes/MSystemUtils.h: In function 'void SystemBeep()':
    /idsdk7/source/public/includes/MSystemUtils.h:618: warning: 'SysBeep' is deprecated (declared at /System/Library/Frameworks/Carbon.framework/Frameworks/CarbonSound.framework/Headers/Soun d.h:1383)
    /idsdk7/source/public/includes/MSystemUtils.h:618: warning: 'SysBeep' is deprecated (declared at /System/Library/Frameworks/Carbon.framework/Frameworks/CarbonSound.framework/Headers/Soun d.h:1383)
    CompileC build/CS5Test.build/Default/Debug.build/Objects-normal/i386/SDKPlugInEntrypoint.o /idsdk7/source/sdksamples/common/SDKPlugInEntrypoint.cpp normal i386 c++ com.apple.compilers.gcc.4_2
    cd /CS5Test/Prj
    setenv LANG en_US.US-ASCII
    /Developer/usr/bin/gcc-4.2 -x c++ -arch i386 -fmessage-length=0 -pipe -Wno-trigraphs -fpascal-strings -fasm-blocks -Os -Werror -DMACINTOSH -DMACOSX_SDKVERSION= -fvisibility-inlines-hidden -gdwarf-2 -I/CS5Test/Prj/build/CS5Test.build/Default/Debug.build/CS5Test.hmap -F/CS5Test/Prj/../debug/sdk -F/idsdk7/build/mac/debug/packagefolder/contents/macos -F/idsdk7/build/mac/debug/packagefolder/contents/Frameworks -I/CS5Test/Prj/../debug/sdk/include -I/idsdk7/external/afl/includes -I/idsdk7/source/precomp/msvc -I/idsdk7/source/public/interfaces/xmedia -I/idsdk7/source/public/interfaces/preflight -I/idsdk7/source/public/interfaces/ui -I/idsdk7/source/public/interfaces/tables -I/idsdk7/source/public/interfaces/text -I/idsdk7/source/public/interfaces/graphics -I/idsdk7/source/public/libs/widgetbin/includes -I/idsdk7/source/public/interfaces/workgroup -I/idsdk7/source/public/interfaces/interactive -I/idsdk7/source/public/interfaces/interactive/ui -I/idsdk7/source/public/interfaces/colormgmt -I/idsdk7/source/public/interfaces/utils -I/idsdk7/source/public/interfaces/incopy -I/idsdk7/source/public/interfaces/layout -I/idsdk7/source/public/interfaces/architecture -I/idsdk7/source/public/interfaces/cjk -I/idsdk7/source/precomp/common -I/idsdk7/source/public/includes -I/idsdk7/source/public/libs/publiclib/plugins -I/idsdk7/source/public/libs/publiclib/files -I/idsdk7/source/public/libs/publiclib/objectmodel -I/idsdk7/external/asl/boost_libraries -I/idsdk7/source/sdksamples/common -I/idsdk7/external/afl/includes -I../Source -I/CS5Test/Prj/build/CS5Test.build/Default/Debug.build/DerivedSources/i386 -I/CS5Test/Prj/build/CS5Test.build/Default/Debug.build/DerivedSources -include /idsdk7/source/precomp/gcc/PluginPrefix.pch -c /CS5Test/Prj//idsdk7/source/sdksamples/common/SDKPlugInEntrypoint.cpp -o /CS5Test/Prj/build/CS5Test.build/Default/Debug.build/Objects-normal/i386/SDKPlugInEntrypo int.o
    i686-apple-darwin10-gcc-4.2.1: /CS5Test/Prj//idsdk7/source/sdksamples/common/SDKPlugInEntrypoint.cpp: No such file or directory
    i686-apple-darwin10-gcc-4.2.1: warning: '-x c++' after last input file has no effect
    i686-apple-darwin10-gcc-4.2.1: no input files
    Command /Developer/usr/bin/gcc-4.2 failed with exit code 1
    Without using environment variable everything works fine . (i.e when I give SDK's dir path like ../../  i.e relative to my project)

    There is workaround : http://stackoverflow.com/questions/12629395/weblogic-using-environment-variable-double-quotes-in-arguments-in-server
    Just posting here for reference. Let's see if we get a different answer from anyone else.

  • The error is like : Variable length field exceeds maximum length

    Hi All,
    I am trying to load some signature ascii data from load file. so i wrote the code like below in my controal file to load that to database. For SIGN_IMAGE in oracle db it was mentioned as RAW(2000). The below is worked fine when i tried in window and oracle 8i environment.
    SIG_TYPE POSITION(23:23) CHAR,
    SIGN_IMAGE POSITION(24:1977) VARRAW(2000)
    NULLIF SIGN_IMAGE=BLANKS,
    SIGN_IMAGE1 POSITION(1978:3930) VARRAW(2000)
         NULLIF SIGN_IMAGE1=BLANKS
    But when i ported the same thing to solaris and oracle 10g environment. The below code is giving error when SQL Loder loading.
    The error is like for column SIGN_IMAGE : Variable length field exceeds maximum length.
    But here i am giving a lenght of 1954 only with including 2 bytes length of the string.
    Could any one tell me what is exactly the problem? i am not able sort out the issue.
    Thanks,
    Shashi

    Maybe:
    http://download.oracle.com/docs/cd/B19306_01/server.102/b14215/ldr_field_list.htm#i1011032

  • Variable length field exceeds maximum length

    Hi All,
    I am trying to load some signature ascii data from load file. so i wrote the code like below in my controal file to load that to database. For SIGN_IMAGE in oracle db it was mentioned as RAW(2000). The below is worked fine when i tried in window and oracle 8i environment.
    SIG_TYPE POSITION(23:23) CHAR,
    SIGN_IMAGE POSITION(24:1977) VARRAW(2000)
    NULLIF SIGN_IMAGE=BLANKS,
    SIGN_IMAGE1 POSITION(1978:3930) VARRAW(2000)
         NULLIF SIGN_IMAGE1=BLANKS
    But when i ported the same thing to solaris and oracle 10g environment. The below code is giving error when SQL Loder loading.
    The error is like : Variable length field exceeds maximum length.
    But here i am giving a lenght of 1954 only with including 2 bytes length of the string.
    Could any one tell me what is exactly the problem? i am not able sort out the issue.
    Thanks,
    Shashi

    Hi,
    I am getting the error in environment Oracle 10.2.0 and SunOS 5.10. This case was executed fine in Oracle 8.1 and windows xp professional. Please find the details below.
    LOG file :
    Column Name Position Len Term Encl Datatype
    TRANS_NO 1:15 15 CHARACTER
    TDR_ID 16:18 3 CHARACTER
    DVCE_TYPE 19:20 2 CHARACTER
    CAP_CD 21:22 2 CHARACTER
    SIG_TYPE 23:23 1 CHARACTER
    SIGN_IMAGE 24:1977 2002 VARRAW
    NULL if SIGN_IMAGE = BLANKS
    SIGN_IMAGE1 1978:3930 2002 VARRAW
    NULL if SIGN_IMAGE1 = BLANKS
    SIGN_IMAGE2 3931:5883 2002 VARRAW
    NULL if SIGN_IMAGE2 = BLANKS
    SIGN_IMAGE3 5884 2002 VARRAW
    NULL if SIGN_IMAGE3 = BLANKS
    value used for ROWS parameter changed from 64 to 31
    Record 1: Rejected - Error on table SIGSCH.SIGNATURE, column SIGN_IMAGE.
    Variable length field exceeds maximum length.
    Record 2: Rejected - Error on table SIGSCH.SIGNATURE, column SIGN_IMAGE.
    Variable length field exceeds maximum length.
    Record 3: Rejected - Error on table SIGSCH.SIGNATURE, column SIGN_IMAGE.
    Variable length field exceeds maximum length.
    Record 4: Rejected - Error on table SIGSCH.SIGNATURE, column SIGN_IMAGE.
    Variable length field exceeds maximum length.
    Controal file :
    LOAD DATA
    INFILE 'sigc.sig'
    BADFILE 'load_7.bad'
    DISCARDFILE 'load_7.dis'
    APPEND
    INTO TABLE sigsch.signature
    TRANS_NO POSITION(1:15) CHAR,
    TDR_ID POSITION(16:18) INTEGER EXTERNAL,
    DVCE_TYPE POSITION(19:20) CHAR,
    CAP_CD POSITION(21:22) CHAR,
    SIG_TYPE POSITION(23:23) CHAR,
    SIGN_IMAGE POSITION(24:1977) VARRAW(2000)
    NULLIF SIGN_IMAGE=BLANKS,
    SIGN_IMAGE1 POSITION(1978:3930) VARRAW(2000)
    NULLIF SIGN_IMAGE1=BLANKS,
    SIGN_IMAGE2 POSITION(3931:5883) VARRAW(2000)
    NULLIF SIGN_IMAGE2=BLANKS,
    SIGN_IMAGE3 POSITION(5884) VARRAW(2000)
    NULLIF SIGN_IMAGE3=BLANKS
    DATA line
    0001200000002480050600?ža4GW ' & ' & _" _! _" ^# ^# _" ^# _" ^# _! _" & ' & ' & !%_!5 & !% & !U & !% ' V X _R _! _Z _Q _" _"__1 _"_ ( _!__2_ (_ 0 & 'pa@NS _! _"_^3 _" ^# _! ^$ ^# _! ^$ _! _" _!paDC' ' P V _ P ^ & '_ ._ 0__*_ 0 ^# _" _! _" _! ^T X _Q! H PpaTI$_ (_ 0_ (_ 0__2_ (^_9 _"_^3 _" _! _R _Z P! H P! H & ^ W !% & & ' _! _" ^# _" _! _" _" _Q _" X P &pa]KA_ 0^ 8_ 0_ (__2_ 0_ ( X _! P P Z! H Q P Z R _!__2 _!^ 8__2_ (^ 8_ 6_ 0 ' Ppe"F; P ^ P & P ' & '_ 0_ 0__)_ 0 _"__) Z " ^S _Y! @!_Jpe3K/ _" _" _! _"__1 ^$ _! _" P _! ' ^ ' & & !% ' & & ' &_ ( _" X P P Y!J R!I!_J ^S R Y _"_ (__1^ 8_ 0^ 8_ 7^ 8_ ( & _" X PpeDF# & & _" _" _! _" ^# _" PpeDKW '_ 0 V P X R X P Q _"_ 0_ 0_ ( _" _! Z P Q Z!J Q R _! _" _"_ 0^ 8__1_ /_ 0_ 6_ ( & ' X V! H W! H! N! H! @ X P Z ! _" _! ^$ _! ^# _" ^# R ! ' & ' !$ !% !% !%_!5 !$ ' & W & & P X _" _R _! _Z _! _" _"__)_ 0__*_ 0 Ppi#J+ X_ (_ 0_ (^ @_ (__1__*__1 _R _Z _Q X P P! H X ' & V_ 7 &_ ( '_ 6 _" Ppi-KG_ 0_ 7__)_ 0_ /__1^ 8_ 0 R Z P Q Z Q Z _" _Q__2__) _"__2_ (^ @_ (_ 6 V ' ^ P P ' X V X P P X P! H P ^ P X W & '_ 6_ (__2_ (__1__2 _! _" _R _Q! H _Z P Ppi@H& _Q P X _" V X ' P_ 6_ (__2__)_ 0__2 _" _! _R _Q X P! H P _ & ' &_ . '_ 6 P XpiTN# &_ (^ 8__2^ 8_ 0__)__2_^3 _" _! ^# R " _! _R _!__2 _"_ 0_ (_ 6_ ._ 7_ 6_ / & & ' X P Q! H!J Ppi\KW _" _R X _Q _Z _Q _R _Zpm&O9_ . _"__2 _!_^3_^, ^#_^3 ^# ^# ^$ Qpm(JS 0_ ( _!_ 0 _"__) _" _" _! _Z P X P V _ &_ ._ 7_ 0 P Ppm1ID_ 0_ 0__* _!__2 _" Q " X _! P P X W X !% P & & W & _" _! _" _" _! ^# _" X V ' !] & V ' & _" _!__2 _" _! _" P & ' & V _ V _! @ ^! H!_B Xpa44V &_ 0____1____2 ^# ^# ^# R !!_J X P V _ !% & !% & '_ . &_ 7_ 6 Ppa<7Q_ 0_ ._ 0 _"__* _! _" ^# _" ]\ ^$ ^S ^# _Z _! W &paE3A _"_ 0 &_ 0_ ( _"_ 0__) _"_^3 _" ^S ^# _Z P!_I W !\ ' "S !%\!% !$ !%_!5 & '_ ( ^# _" ^# _! ^$ ^[ _! ^T ^# _YpaW7)_ 0_ ( _"__1 _" ^# _" ^# _! ^T X _Q! H P! H Xpe 7Q_ 0_ ( X _" _Q ^# _R ^# ^# ^\ ^# ^S _" _! _Z V !% !U !] !T !% !% !% &_ 0 _"__) ^$ _! _" ^# _" ^[ P _Y! @ X W ^ ' &_ ._ 7_ . '_ 6_ 0 & W P ^pe37/ ' _! _" _" _! ^# ^$ _! ^[ ^$ ^# _! ^$ _!pe-3A _" X _Q X! @ X P! H P ' X & V ' & ' !$ ' & _" _! ^$ _! ^# ^$ ^[ ^# ^# ^S _" _" V !% ^ W !\ W P ^ P X P _R _! _Z ^# _R ^# ^# _Z _! _RpeE/G X P X P W X P &_ 7_ (__1_ 0__*__1_^, _! ^# ^\ _Q _Z!_A!_J! H P! HpeU3A &_ 0_ 0__* _" _! _Z _Q _" ^S _" ^# _" _! _"__1 _"__2_ (_ 0pe]5D _" _! _" _" _! ^# ^\ ^# ^S _" ^# X & W & !% !%_"3_!-_ 6_!- &_ 7_ 0 & P V _ P X! @ X P X _Q ^$ _! _" _!__2_ ( _"_ 0_ (_ 0 Vpi&0> _! ^$ _Q _" _! ^$ _! _" & _ !$ ' !% !$ ' !U V ^ P! H P!_J X!_B Xpi65<_ ( _"_ 0 _! _"__2 _!__* _! ^$ ^# _Y _R _R X V ^ !U ' & &_ 7_ . '_ 0_ ( X VpiA1D_ 0^ 8 _"_ 0 _! ^$ _!_^+ ^$ ^[ ^S ^# ^[ _R _R_ 6 &_!5_!- !%_!5 !$ !% !U !% ^ W P X P _Y P _" _! _" ^#__2_ (__1_ (_ 0 ' &piF0> P X P! H P! H! H V __ . &_ 0_ (^ @_ (__2__*__1 _" _Q _Z _R! H!_I! H PpiT3! P &__2 _" _! _R _! _" _" ^# _! ' & ' !$ W & ' ^ V! H P! H Xpm$;! & _" _" _! ^# ^$ _! ^# _" _" ^#pm'3/ _"_ 0 _" _! _R _! _Z P _R! H! H P! N X V W & _Z _! ^$ ^S ^# ]] ^# ]% ]U_^3 _!__*^_:^_A^ 8^ 8^ ?^ 8^ @p

  • Variable length field exceeds maximum length for VARRAW in SQLLOADER

    Hi All,
    I am trying to load some signature ascii data from load file. so i wrote the code like below in my controal file to load that to database. For SIGN_IMAGE in oracle db it was mentioned as RAW(2000). The below is worked fine when i tried in window and oracle 8i environment.
    SIG_TYPE POSITION(23:23) CHAR,
    SIGN_IMAGE POSITION(24:1977) VARRAW(2000)
    NULLIF SIGN_IMAGE=BLANKS,
    SIGN_IMAGE1 POSITION(1978:3930) VARRAW(2000)
         NULLIF SIGN_IMAGE1=BLANKS
    But when i ported the same thing to solaris and oracle 10g environment. The below code is giving error when SQL Loder loading.
    The error is like : Variable length field exceeds maximum length.
    But here i am giving a lenght of 1954 only with including 2 bytes length of the string.
    Could any one tell me what is exactly the problem? i am not able sort out the issue.
    Thanks,
    Shashi

    Please only post in a single forum. Thank you.

  • Variable length field exceeds maximum length for VARRAW

    Hi All,
    I am trying to load some signature ascii data from load file. so i wrote the code like below in my controal file to load that to database. For SIGN_IMAGE in oracle db it was mentioned as RAW(2000). The below is worked fine when i tried in window and oracle 8i environment.
    SIG_TYPE POSITION(23:23) CHAR,
    SIGN_IMAGE POSITION(24:1977) VARRAW(2000)
    NULLIF SIGN_IMAGE=BLANKS,
    SIGN_IMAGE1 POSITION(1978:3930) VARRAW(2000)
         NULLIF SIGN_IMAGE1=BLANKS
    But when i ported the same thing to solaris and oracle 10g environment. The below code is giving error when SQL Loder loading.
    The error is like : Variable length field exceeds maximum length.
    But here i am giving a lenght of 1954 only with including 2 bytes length of the string.
    Could any one tell me what is exactly the problem? i am not able sort out the issue.
    Thanks,
    Shashi

    You should probably move this question to the General Database Discussions. This forum is for Oracle Forms not SQL:*Loader.

  • Who can tell me the details about "JMSJVMOPTS" environment variable of JMSC API

              I have a question about JMS C API.
              When in windows service application, JMSContectCreate return JMS_JVM_ERROR error.
              But in desktop app, it does well.
              I think I may need set the JMSJVMOPTS environment variable.
              But how to set JMSJVMOPTS ?
              

    OK,
              The JMSJVMOPTS are extra options passed to the "java" executable itself
              along with
              "-Djava.class.path=${CLASSPATH}"
              Hence, the actual things you can set with this depend on which java compiler
              you are using. If you are using the Sun JVM for instance, here are some of
              the options you can set (from java -?)
              where options include:
              -client to select the "client" VM
              -server to select the "server" VM
              -hotspot is a synonym for the "client" VM [deprecated]
              The default VM is client.
              -cp -classpath <directories and zip/jar files separated by ;>
              set search path for application classes and resources
              -D<name>=<value>
              set a system property
              -verbose[:class|gc|jni]
              enable verbose output
              -version print product version and exit
              -showversion print product version and continue
              -? -help print this help message
              -X print help on non-standard options
              -ea[:<packagename>...|:<classname>]
              -enableassertions[:<packagename>...|:<classname>]
              enable assertions
              -da[:<packagename>...|:<classname>]
              -disableassertions[:<packagename>...|:<classname>]
              disable assertions
              -esa | -enablesystemassertions
              enable system assertions
              -dsa | -disablesystemassertions
              disable system assertions
              As far as what sort of things can cause a JMS_JVM_ERROR from
              JmsContextCreate the answer is that there are many, many reasons this might
              be happening. Please look for a file named ULOG.<mmddyy> (where mmddyy is
              month/day/year - for example ULOG.081403) somewhere on your system (I am not
              sure where this file would go being run from a W2K service). That "userlog"
              file should contain more information about why the failure occurred.
              Also, you can set JMSDEBUG=y in your environment which will print to stdout
              (again, not sure where stdout goes in a system service) stack traces and
              other debugging information into the ULOG file.
              Hope this helps...
              "Luke" <[email protected]> wrote in message
              news:[email protected]...
              >
              > Hi,John Wells,
              > thanks for your help.
              > But what I really don't know is what value I can set for JMSJVMOPTS.
              > There is not document about the detail of optional values for JMSJVMOPTS.
              > And what reasons can result a JMS_JVM_ERROR in JmsContextCreate() ?
              

  • How to get system Environment variable?

    How to get system Environment variable without using jni?
    just like "JAVA_HOME" or "PATH"...
    Any reply is help to me!! :-)

    Thx for your reply...
    I get it!!!
    Read environment variables from an application
    Start the JVM with the "-D" switch to pass properties to the application and read them with the System.getProperty() method. SET myvar=Hello world
    SET myothervar=nothing
    java -Dmyvar="%myvar%" -Dmyothervar="%myothervar%" myClass
    then in myClass String myvar = System.getProperty("myvar");
    String myothervar = System.getProperty("myothervar");
    This is useful when using a JAVA program as a CGI.
    (DOS bat file acting as a CGI) java -DREQUEST_METHOD="%REQUEST_METHOD%"
    -DQUERY_STRING="%QUERY_STRING%"
    javaCGI
    If you don't know in advance, the name of the variable to be passed to the JVM, then there is no 100% Java way to retrieve them.
    NOTE: JDK1.5 provides a way to achieve this, see this HowTo.
    One approach (not the easiest one), is to use a JNI call to fetch the variables, see this HowTo.
    A more low-tech way, is to launch the appropriate call to the operating system and capture the output. The following snippet puts all environment variables in a Properties class and display the value the TEMP variable. import java.io.*;
    import java.util.*;
    public class ReadEnv {
    public static Properties getEnvVars() throws Throwable {
    Process p = null;
    Properties envVars = new Properties();
    Runtime r = Runtime.getRuntime();
    String OS = System.getProperty("os.name").toLowerCase();
    // System.out.println(OS);
    if (OS.indexOf("windows 9") > -1) {
    p = r.exec( "command.com /c set" );
    else if ( (OS.indexOf("nt") > -1)
    || (OS.indexOf("windows 2000") > -1 )
    || (OS.indexOf("windows xp") > -1) ) {
    // thanks to JuanFran for the xp fix!
    p = r.exec( "cmd.exe /c set" );
    else {
    // our last hope, we assume Unix (thanks to H. Ware for the fix)
    p = r.exec( "env" );
    BufferedReader br = new BufferedReader
    ( new InputStreamReader( p.getInputStream() ) );
    String line;
    while( (line = br.readLine()) != null ) {
    int idx = line.indexOf( '=' );
    String key = line.substring( 0, idx );
    String value = line.substring( idx+1 );
    envVars.setProperty( key, value );
    // System.out.println( key + " = " + value );
    return envVars;
    public static void main(String args[]) {
    try {
    Properties p = ReadEnv.getEnvVars();
    System.out.println("the current value of TEMP is : " +
    p.getProperty("TEMP"));
    catch (Throwable e) {
    e.printStackTrace();
    Thanks to W.Rijnders for the W2K fix.
    An update from Van Ly :
    I found that, on Windows 2003 server, the property value for "os.name" is actually "windows 2003." So either that has to be added to the bunch of tests or just relax the comparison strings a bit: else if ( (OS.indexOf("nt") > -1)
    || (OS.indexOf("windows 2000") > -1 )
    || (OS.indexOf("windows 2003") > -1 ) // works but is quite specific to 2003
    || (OS.indexOf("windows xp") > -1) ) {
    else if ( (OS.indexOf("nt") > -1)
    || (OS.indexOf("windows 20") > -1 ) // probably is better since no other OS would return "windows" anyway
    || (OS.indexOf("windows xp") > -1) ) {
    I started with "windows 200" but thought "what the hell" and made it "windows 20" to lengthen its longivity. You could push it further and use "windows 2," I suppose. The only thing to watch out for is to not overlap with "windows 9."
    On Windows, pre-JDK 1.2 JVM has trouble reading the Output stream directly from the SET command, it never returns. Here 2 ways to bypass this behaviour.
    First, instead of calling directly the SET command, we use a BAT file, after the SET command we print a known string. Then, in Java, when we read this known string, we exit from loop. [env.bat]
    @set
    @echo **end
    [java]
    if (OS.indexOf("windows") > -1) {
    p = r.exec( "env.bat" );
    while( (line = br.readLine()) != null ) {
    if (line.indexOf("**end")>-1) break;
    int idx = line.indexOf( '=' );
    String key = line.substring( 0, idx );
    String value = line.substring( idx+1 );
    hash.put( key, value );
    System.out.println( key + " = " + value );
    The other solution is to send the result of the SET command to file and then read the file from Java. ...
    if (OS.indexOf("windows 9") > -1) {
    p = r.exec( "command.com /c set > envvar.txt" );
    else if ( (OS.indexOf("nt") > -1)
    || (OS.indexOf("windows 2000") > -1
    || (OS.indexOf("windows xp") > -1) ) {
    // thanks to JuanFran for the xp fix!
    p = r.exec( "cmd.exe /c set > envvar.txt" );
    // then read back the file
    Properties p = new Properties();
    p.load(new FileInputStream("envvar.txt"));
    Thanks to JP Daviau
    // UNIX
    public Properties getEnvironment() throws java.io.IOException {
    Properties env = new Properties();
    env.load(Runtime.getRuntime().exec("env").getInputStream());
    return env;
    Properties env = getEnvironment();
    String myEnvVar = env.get("MYENV_VAR");
    To read only one variable : // NT version , adaptation for other OS is left as an exercise...
    Process p = Runtime.getRuntime().exec("cmd.exe /c echo %MYVAR%");
    BufferedReader br = new BufferedReader
    ( new InputStreamReader( p.getInputStream() ) );
    String myvar = br.readLine();
    System.out.println(myvar);
    Java's System properties contains some useful informations about the environment, for example, the TEMP and PATH environment variables (on Windows). public class ShowSome {
    public static void main(String args[]){
    System.out.println("TEMP : " + System.getProperty("java.io.tmpdir"));
    System.out.println("PATH : " + System.getProperty("java.library.path"));
    System.out.println("CLASSPATH : " + System.getProperty("java.class.path"));
    System.out.println("SYSTEM DIR : " +
    System.getProperty("user.home")); // ex. c:\windows on Win9x system
    System.out.println("CURRENT DIR: " + System.getProperty("user.dir"));
    Here some tips from H. Ware about the PATH on different OS.
    PATH is not quite the same as library path. In unixes, they are completely different---the libraries typically have their own directories. System.out.println("the current value of PATH is: {" +
    p.getProperty("PATH")+"}");
    System.out.println("LIBPATH: {" +
    System.getProperty("java.library.path")+"}");
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