I get the Eclipse error below when starting my application in Tomcat (via Run As > Run on Server.) I'm using the DataNucleus Eclipse Plugin and have it set up to Enable Auto-Enhancement.
Publishing failed with multiple errors
Resource is out of sync with the file system: '/myproject/target/classes/com/mysite/models/Inventory.class'.
Resource is out of sync with the file system: '/myproject/target/classes/com/mysite/models/Product.class'.
I understand I can manually trigger refresh on that project every time I want to run the project on server. Are there ways to overcome that inconvenience?
Note: I also understand Eclipse can be configured to refresh on access, using native hooks, or using polling. However, that triggers multiple unnecessary runs of datanucleus:enhance. Additionally, the problem is compounded when Tomcat is configured to automatically publish when resources change or after a build event.
For reference, relevant excerpts of my pom.xml are below
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<packaging>war</packaging>
<properties>
<datanucleus.core.version>3.2.12</datanucleus.core.version>
<datanucleus.api.version>3.0.1</datanucleus.api.version>
</properties>
<dependencies>
<!-- Database See http://www.datanucleus.org/products/datanucleus/jdo/maven.html -->
<dependency>
<groupId>javax.jdo</groupId>
<artifactId>jdo-api</artifactId>
<version>${datanucleus.api.version}</version>
</dependency>
<dependency>
<groupId>org.datanucleus</groupId>
<artifactId>datanucleus-core</artifactId>
<version>${datanucleus.core.version}</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.datanucleus</groupId>
<artifactId>datanucleus-api-jdo</artifactId>
<version>[3.2.0, 3.2.99)</version>
</dependency>
<dependency>
<groupId>org.datanucleus</groupId>
<artifactId>datanucleus-rdbms</artifactId>
<version>[3.2.0, 3.2.99)</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.hsqldb</groupId>
<artifactId>hsqldb</artifactId>
<version>2.3.1</version>
</dependency>
</dependencies>
<build>
<plugins>
<!-- JDO Enhancer See http://www.datanucleus.org/products/datanucleus/jdo/guides/eclipse.html -->
<plugin>
<groupId>org.datanucleus</groupId>
<artifactId>datanucleus-maven-plugin</artifactId>
<version>3.3.0-release</version>
<configuration>
<log4jConfiguration>${basedir}/log4j.properties</log4jConfiguration>
<verbose>true</verbose>
</configuration>
<dependencies>
<dependency>
<groupId>org.datanucleus</groupId>
<artifactId>datanucleus-core</artifactId>
<version>${datanucleus.core.version}</version>
</dependency>
<dependency>
<groupId>javax.jdo</groupId>
<artifactId>jdo-api</artifactId>
<version>${datanucleus.api.version}</version>
</dependency>
</dependencies>
<executions>
<execution>
<phase>process-classes</phase>
<goals>
<goal>enhance</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.eclipse.m2e</groupId>
<artifactId>lifecycle-mapping</artifactId>
<version>1.0.0</version>
<configuration>
<lifecycleMappingMetadata>
<pluginExecutions>
<pluginExecution>
<pluginExecutionFilter>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-enforcer-plugin</artifactId>
<versionRange>[1.0.0,)</versionRange>
<goals>
<goal>enforce</goal>
</goals>
</pluginExecutionFilter>
<action>
<ignore />
</action>
</pluginExecution>
<pluginExecution>
<pluginExecutionFilter>
<groupId>
org.datanucleus
</groupId>
<artifactId>
datanucleus-maven-plugin
</artifactId>
<versionRange>
[3.3.0-release,)
</versionRange>
<goals>
<goal>enhance</goal>
</goals>
</pluginExecutionFilter>
<action>
<ignore></ignore>
</action>
</pluginExecution>
</pluginExecutions>
</lifecycleMappingMetadata>
</configuration>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>