classpath

I am trying to run java application and I am getting following error, Unable to find a javac compiler; com.sun.tools.javac.Main is not on the classpath. Perhaps JAVA_HOME does not point to the JDK I have gone through many SO questions and found solution is JAVA_HOME should be point to JDK, not JRE . Then I have tried to print JAVA_HOME in command prompt, I had set this JAVA_HOME from my computer->properties->env variables -> system vars as below, I had also added new variable in eclipse using preferences as, And finally I am still getting the same error. Whats wrong with JAVA_HOME ? Update :

In our project we use Eclipse launch configurations which are under version control to be shared with all developers. Now it is necessary to include an external archive to a launch configuration file's classpath. Fortunately the required archive is in every developer's local Maven repository. I already found out that there is a classpath variable called M2_REPO which references to the local Maven repository (being valid for any developer). But how to use this variable in the following classpath definition to replace the absolute path? <listAttribute key="org.eclipse.jdt.launching.CLASSPATH"> .

I am working on some Spring XML configuration files and sometimes they use "classpath:/datasource.xml" and sometimes "classpath:datasource.xml" . Is there a difference between the two or is the leading / optional / implied / redundant? I don't see any difference between these two. The biggest difference that you will see is that the relative path and the * on the classpath location Here is an excerpt from Spring Resources , look for section 4.7.2.2 Classpath*: The "classpath*:" prefix can also be combined with a PathMatcher pattern in the rest of the location path, for example "classpath*:META

My compiler is not able to find the HttpServletRequest getServletContext() method. I am not doing anything too complicated: public static void setMySortedSet(HttpServletRequest request, SortedSet<String> set) { setMySortedSet(request.getServletContext(), set); } Some troubleshooting I have tried: Discovered the method was created in 2.3, so I included a JAR that reflects that (and have it in my Eclipse build path) I include the JAR in my build.xml classpath. When I using Eclipse the method is found but when I try to build the classes I see this: compile: [javac] Compiling 1 source files to C:\

When I'm in Eclipse my project compiles with no errors, however when I try to compile with javac it says I'm missing some packages... I copied my compile command and some of the error text below: javac -classpath lib/ -d bin/ src/*.java src/Cleaner.java:5: package net.sourceforge.jgeocoder does not exist src/MyUtilities.java:19: package org.apache.commons.codec.binary does not exist In Eclipse, I have added all the .JAR files to the build-path, and the program compiles just fine. Why can it not find the jars when I use javac instead of the Eclipse IDE? -classpath lib/ will cause javac to look

Is there a way to include all the jar files within a directory in the classpath using Eclipse? It can be done by using command line by the following command: java -cp "lib/*" my.package.Main But how can it be done from eclipse? EDIT: I edited the .classpath entry in my project floder as: <?xml version="1.0" encoding="UTF-8"?> <classpath> <classpathentry kind="src" path="src"/> <classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/> <classpathentry kind="lib" path="F:/Program Files/Java/log4j/apache-log4j-2.0-alpha2-bin/*"/> <classpathentry kind="output" path="classes"/> <

I've spent a while searching on this and nothing that I find seems relevant specifically to my issue. I am making RPC calls so I wanted to change the path to one of my web services. It was something like mytestproject and wanted to change it to finalprojectname I went to the mytestproject.gwt.xml file and changed <module rename-to='mytestproject'> to <module rename-to='finalprojectname'> I then ran it through and got an error that [ERROR] Unable to find 'org/ediscovery/gwt/mytestproject.gwt.xml' on your classpath; could be a typo, or maybe you forgot to include a classpath entry for source? I