Updating Source Folders adds JRE System Library properly but packages are not created - I receive an error message as follows:

09.03.07 10:13:12 CET: compiler:compile
09.03.07 10:13:12 CET: ERROR mojo-execute : compiler:compile : Compilation failure
Unable to locate the Javac Compiler in:
 E:\java\jre\..\lib\tools.jar
Please ensure you are using JDK 1.4 or above and
not a JRE (the com.sun.tools.javac.Main class is required).
In most cases you can change the location of your Java
installation by setting the JAVA_HOME environment variable.

09.03.07 10:13:12 CET: ERROR project-execute : repository.server:Server:jar:1-0-0-SNAPSHOT ( task-segment: [process-test-resources] ) : Compilation failure
Unable to locate the Javac Compiler in:
 E:\java\jre\..\lib\tools.jar
Please ensure you are using JDK 1.4 or above and
not a JRE (the com.sun.tools.javac.Main class is required).
In most cases you can change the location of your Java
installation by setting the JAVA_HOME environment variable.

09.03.07 10:13:12 CET: ERROR reactor-execute : E:\eclipse\eclipse_workspaces\workspace1\Server : Compilation failure
Unable to locate the Javac Compiler in:
 E:\java\jre\..\lib\tools.jar
Please ensure you are using JDK 1.4 or above and
not a JRE (the com.sun.tools.javac.Main class is required).
In most cases you can change the location of your Java
installation by setting the JAVA_HOME environment variable.

09.03.07 10:13:13 CET: ERROR reactor-execute : E:\eclipse\eclipse_workspaces\workspace1\Server 09.03.07 10:13:13 CET: Build error for /Server/pom.xml; org.apache.maven.reactor.MavenExecutionException: Some builds failed
09.03.07 10:13:13 CET: Updated source folders for project Server 6sec

my JAVA_HOME leads to e:/java/jdk directory, where JDK is installed - I'm using JDK 1.5.0_10, in path mentioned in error logs I have installed JRE but none of system paths leads into this directory, I am also using JRE from JDK in Eclipse placed in e:/java/jdk

Eugene Kuleshov wrote:

Have you tried to run Update Source Folders? Or just manually fix your source folders in JDT buildpath settings.


Marcin Nowak wrote:


Hi,

Is there a possibility to use own-defined project structure as shown below?

   <build>
       <sourceDirectory>src</sourceDirectory>
       <scriptSourceDirectory>scripts</scriptSourceDirectory>
       <testSourceDirectory>test</testSourceDirectory>
       <directory>bin</directory>
       <outputDirectory>bin/classes</outputDirectory>
       <testOutputDirectory>bin/test-classes</testOutputDirectory>
       <finalName>${artifactId}</finalName>
       <resources>
           <resource>
               <directory>resources</directory>
           </resource>
       </resources>
       <plugins>
           <plugin>
               <groupId>org.apache.maven.plugins</groupId>
               <artifactId>maven-jar-plugin</artifactId>
               <configuration>
<outputDirectory>releases/${version}</outputDirectory>
               </configuration>
           </plugin>
       </plugins>
   </build>

at this moment enabling m2eclipse plug-in in project containing those lines causes in a flat project structure with all project directories interpreted as packages and without JRE Standard Library added to build path, importing project using maven2 import causes in error logged as shown:

08.03.07 09:08:36 CET: Unable to create project repository.client:Client:jar:1-0-0-SNAPSHOT; org.eclipse.core.internal.resources.ResourceException: Invalid project description.

BR,
Marcin Nowak

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