Workaround for the Src/main/java Resource folder cannot be established after Eclipse builds the MAVEN project

After the new good one MAVEN project is established, if there is no Src/main/java folder under the Java Resources Resource file, and you are prompted to "file already exists" When you manually create the file.

This shows that in this project configuration already has Src/main/java this folder, as for why not show, I am still not clear, hope who understand with me under, thanks. (resolved) The first method: Open the project's Classpath file, as follows:

<?XML version= "1.0" encoding= "UTF-8"?><Classpath>    <ClasspathentryKind= "src"Output= "Target/test-classes"Path= "Src/test/java">        <attributes>            <attributename= "Optional"value= "true"/>            <attributename= "Maven.pomderived"value= "true"/>        </attributes>    </Classpathentry>    <ClasspathentryKind= "src"Path= "Src/main/java"/>    <ClasspathentryKind= "src"Path= "Src/main/resources"/>    <ClasspathentryKind= "src"Output= "Target/test-classes"Path= "Src/test/resources"/>    <ClasspathentryKind= "Con"Path= "Org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER">        <attributes>            <attributename= "Maven.pomderived"value= "true"/>            <attributename= "Org.eclipse.jst.component.dependency"value= "/web-inf/lib"/>        </attributes>    </Classpathentry>    <ClasspathentryKind= "Con"Path= "org.eclipse.jdt.launching.jre_container/org.eclipse.jdt.internal.debug.ui.launcher.standardvmtype/ JavaSE-1.6 ">        <attributes>            <attributename= "Owner.project.facets"value= "Java"/>        </attributes>    </Classpathentry>    <ClasspathentryKind= "Output"Path= "Target/classes"/></Classpath>

The Path property will appear as: Src/main/java's Classpathentry node, at which point we need to delete the newly created node, such as <classpathentry kind="src" path= " Src/main/java "/>. If you re-establish the Src/main/java folder under Java Resources, there will be no problem.

The second method: This is the most convenient one. On the project, right-select Properties, then click Java Build Path, under Librarys, edit the JRE System Library, select workspace Default JRE.

Workaround for the Src/main/java Resource folder cannot be established after Eclipse builds the MAVEN project