tools.jar

I've been using the Java Attach API (part of tools.jar) to attach to a running java process, and shut it down from within. It works perfectly on Windows. However when trying to actually execute the attach code when running on linux I get a java.lang.NoClassDefFoundError with the following stack trace for the cause... java.lang.ClassNotFoundException:com.sun.tools.attach.VirtualMachine... java.net.URLClassLoader$1.run(URLClassLoader.java:202) java.security.AccessController.doPrivileged(Native Method) java.net.URLClassLoader.findClass(URLClassLoader.java:190) java.lang.ClassLoader.loadClass

i need to use tools.jar in my project, but there is not much sense to package it in the jar, since the user already have it. so, is it possible to use it as a "dynamic dependency"? meaning, i want my code to compile by using tools.jar file found in my JAVA_HOME , but i don't want it to get packaged with it. i can make sure to add it to the classpath with double activation at runtime with the user's JAVA_HOME used instead. for example: object Main1 extends App { val myjar = Main1.getClass.getProtectionDomain.getCodeSource.getLocation.getFile val tools = System.getProperty("java.home").dropRight

I am putting together a dev environment for a Java program and after the first try of my Ant build scripts I got this error: Unable to locate tools.jar. Expected to find it in /usr/lib/jvm/java-6-openjdk/lib/tools.jar While the path to the jdk is correct, the tools.jar really wasn't there. Is it actually supposed to be there or did I get some config/installation thing wrong? It's there on my machine. I'm running Sun JDK 1.6.0_21 on Windows XP SP3. Are you sure you have the JDK? Is it possible that you only have the JRE? It seems like you can have Java installed in /usr/lib/jvm/java-6-openjdk

问题描述： 当我们在用eclipse和m2eclipse时 ，JAVA_HOME,CLASSPATH和MAVEN_HOME都配置好了，运行mvc clean install出现找不到 tools.jar。 问题分析： 是找不到tools.jar，而tools.jar一般是在C:\Program Files\Java\jdk1.7.0_15\lib之下的。 问题解决： Eclipse默认是运行在jre上的，而m2eclipse的一些功能要求使用JDK，如果不进行配置的话。问题的关键就是在配置eclipse的JRE的时候是使用安装JDK的 同一级目录下的JRE的所以会出现以上问题。所以只需要将eclipse的jre选到JDK中的配置即可。 问题扩展： jdk中的jre和jdk同目录下的jre的区别在什么地方？ 参考此处 来源： oschina 链接： https://my.oschina.net/u/219009/blog/296620

I have a project that uses this technique that work fine in JDK 8 and older. However, in JDK 9 this jar was removed and it does no longer work: 'dependencies.dependency.systemPath' for com.sun:tools:jar refers to a non-existing file /usr/lib/jvm/java-9-jdk/../lib/tools.jar. Please verify that you run Maven using a JDK and not just a JRE. (The path looks strange, though there is no tools.jar in JDK 9 ) What is the best practice that would work across JDK versions and perhaps even JDK vendors? I have not even found any workaround for JDK 9 on OpenJDK (while keeping the project buildable on JDK 8

Running CentOS 6 , Java 1.7.0_25 OpenJDK Upon installing the RPM I saw it say Unpacking JAR files... rt.jar jsee.jar charsets.jar >tools.jar Where is tools.jar located? I checked /usr/lib/jvm/java-1.7.0-openjdk-1.7.0.25.x86_64 No where to be found. On windows, I could find it at \jdk1.7.0\lib . You can find java directory structure here Not sure what rpm you used, but if you install from yum repo, you should install java-1.7.0-openjdk-devel in addition to java-1.7.0-openjdk . Then you will find tools.jar in /usr/lib/jvm/java-1.7.0-openjdk-1.7.0.xx.x86_64/lib directory. alci On Linux, you can

Although tools.jar is not a component in JRE, but it comes with all major implementations of JDK such as Oracle JDK and OpenJDK. Not being standard component of JRE means that when I distribute a Java application which uses tools.jar , I have to distribute it along with the application bundle OR include it in classpath. My questions are: Does tools.jar contain platform-dependent components that prevent it from being distributed across different platforms (Windows/Linux/OSX)? We already know that Oracle JDK does not allow distribution of tools.jar , but what about OpenJDK, can we distribute

This question already has an answer here: Unable to locate tools.jar 29 answers 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 settings and looking for the tools.jar somewhere else. There are no environment variables which point to the jre6 path. Any

When compiling a project in Eclipse, I get below error: Fatal error compiling: tools.jar not found: How is this caused and how can I solve it? Valentin Montmirail Goto Windows -> Preferences Java -> Installed JREs –> Execution Environment JavaSE1.x -> JDE 1.x If you don’t have the JDK in the Installed JRE , then Select the Installed JRE and Add the JDK installed path Let's try to configure your run configurations to clean install Click on the small black arrow and then Run Configurations After, you just put clean install in your Maven goal, like this : And then, try to run your compilation,