java-home

“Unable to locate tools.jar” when running ant [duplicate]

孤街醉人 提交于 2019-11-27 13:24:43
问题 This question already has answers here : Unable to locate tools.jar (29 answers) Closed 6 years ago . When running ant, I get the following message: Unable to locate tools.jar. Expected to find it in C:\Program Files\Java\jre6\lib\tools.jar I have JAVA_HOME set to C:\Program Files\Java\jdk1.7.0_02 , PATH includes C:\Program Files (x86)\Java\jdk1.7.0_02\bin , CLASSPATH includes C:\Program Files (x86)\Java\jdk1.7.0_02 , and ANT_HOME is set to C:\ant . It seems that ant is ignoring all of these

How to set environmental variables using Ansible

走远了吗. 提交于 2019-11-27 12:40:27
I need to set the variables like JAVA_HOME and update PATH . There are a number of ways of doing this. One way is to update the /etc/environment variable and include a line for JAVA_HOME using the lineinfile module and then run the command source /etc/environment directly on the guest OS (CentOS in my case). Another way is to execute the export command e.g. export JAVA_HOME=/usr/java/jre1.8.0_51 export PATH=$PATH:$JAVA_HOME Is there a cleaner way to do this as all these require manipulating files and running commands directly on the OS to update the environment variables? Yes, there is a

How to set CATALINA_HOME variable in windows 7?

我们两清 提交于 2019-11-27 11:01:37
I have downloaded apache-tomcat-7.0.35 . My JDK version is jdk1.6.0_27 . How do I configure CATALINA_HOME as an environment variable and how do I run Tomcat server under Windows 7? Zeeshan Akhter Setting the JAVA_HOME , CATALINA_HOME Environment Variable on Windows One can do using command prompt: set JAVA_HOME=C:\ "top level directory of your java install" set CATALINA_HOME=C:\ "top level directory of your Tomcat install" set PATH=%PATH%;%JAVA_HOME%\bin;%CATALINA_HOME%\bin OR you can do the same: Go to system properties Go to environment variables and add a new variable with the name JAVA

Working With Hadoop: localhost: Error: JAVA_HOME is not set

孤街醉人 提交于 2019-11-27 10:20:50
问题 I'm working with Ubuntu 12.04 LTS. I'm going through the hadoop quickstart manual to make a pseudo-distributed operation. It seems simple and straightforward (easy!). However, when I try to run start-all.sh I get: localhost: Error: JAVA_HOME is not set. I've read all the other advice on stackoverflow for this issue and have done the following to ensure JAVA_HOME is set: In /etc/hadoop/conf/hadoop-env.sh I have set JAVA_HOME=/usr/lib/jvm/java-6-oracle export JAVA_HOME In /etc/bash.bashrc I

Setting up java classpath and java_home correctly in Ubuntu

喜你入骨 提交于 2019-11-27 06:47:29
问题 I am getting the error Exception in thread "main" java.lang.NoClassDefFoundError: When I try and run a compiled class on Ubuntu. I am using a very simple Helloworld example, and the millions of responses which already exist on the internet suggest that my CLASSPATH and JAVA_HOME variables have been incorrectly set. However, I have edited the etc/environment to the correct folders as well as the current folder: PATH=".:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games"

Difference between java.home and JAVA_HOME

亡梦爱人 提交于 2019-11-27 05:58:35
问题 In my java code, I have this line System.getProperty("java.home") . In some environments, this returns the same value as what has been set JAVA_HOME as environment variable. But in some environments, System.getProperty("java.home") returns completely different value from JAVA_HOME . So my question is what's the difference between java.home and JAVA_HOME from java perspective? What i know from my research is JAVA_HOME is jdk installation path, java.home is jre installation path, but then why

How can I change Mac OS's default Java VM returned from /usr/libexec/java_home

我是研究僧i 提交于 2019-11-27 04:57:11
问题 (Wasn't sure if this should go on SU... migration is certainly an option, but more programmers read questions here, so here goes). I am running Mac OS X 10.8.4, and I have Apple's JDK 1.6.0_51 installed as well as Oracle's JDK 1.7.0_25. I recently installed Oracle's 1.8 preview JDK for some pre-release software that requires it. Now, when I run /usr/libexec/java_home, I get this: $ /usr/libexec/java_home -V Matching Java Virtual Machines (4): 1.8.0, x86_64: "Java SE 8" /Library/Java

How to change Java version used by TOMCAT?

北城余情 提交于 2019-11-27 04:21:16
I have Java 1.6 and Tomcat 5.5 installed on my system. But Tomcat 5.5 accesses Java 1.5 and hence as the outcome I get the error Bad version number in .class file while executing java code with JSP. How can I change the Tomcat version to Java 1.6? UPDATE I tried changing the JVM that the tomcat5w.exe is pointing to the version 1.6 and now I am out of the Bad version in .class file error. But now, I get the following error. exception org.apache.jasper.JasperException org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:498) org.apache.jasper.servlet

what is the reason for the existence of the JAVA_HOME environment variable?

这一生的挚爱 提交于 2019-11-27 03:35:16
Many java based application requires to set JAVA_HOME env variable. What's the purpose of this variable? kamaci Environment variables are strings that contain information such as drive, path, or file name. The JAVA_HOME environment variable points to the directory where the Java runtime environment (JRE) is installed on your computer. Haakon The purpose is to point to where Java is installed. $JAVA_HOME/bin/java should execute the Java runtime. djna When you run a Java program you need to first start the JVM, typically this is done by running an executable, on Windows this is java.exe . You

Jenkins, specifying JAVA_HOME

*爱你&永不变心* 提交于 2019-11-27 02:37:44
问题 I installed openjdk-6-jdk on my ubuntu box using apt-get. In system info jenkins is telling me Java.Home is /usr/lib/jvm/java-6-openjdk/jre However when I specify that directory as JAVA_HOME in Jenkins : "configure system", it returns error message saying that directory does not look like a jdk directory. it is also failing to pick up my maven install. Am I missing something obvious ? 回答1: Your JAVA_HOME variable must be set to /usr/lib/jvm/java-6-openjdk and it must be available for the user