Unresolved compilation problems when generating WAR file using maven

Question

When I generate my WAR file using mvn clean install , some classes throw the following error msg:

public Person deletePers(String paramString1, String paramString2) { throw new Error("Unresolved compilation problems: \n\tTransactional cannot be resolved to a type\n.......; }

But if I generate my WAR file in Eclipse (file > export as War File), I don't get the above error. Anyone know how to solve this?

<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>PPS</groupId>
<artifactId>PPS</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>

<properties>
    <java-version>1.7</java-version>
    <springframework.version>3.1.1.RELEASE</springframework.version>
    <springsecurity.version>3.1.0.RELEASE</springsecurity.version>
    <jackson.version>2.6.3</jackson.version>
    <log4j.version>1.2.17</log4j.version>
</properties>

<dependencies>

<dependency>
    <groupId>org.springframework.data</groupId>
    <artifactId>spring-data-commons</artifactId>
    <version>1.10.0.RELEASE</version>
</dependency>

<dependency>
    <groupId>org.json</groupId>
    <artifactId>json</artifactId>
    <version>20160212</version>
</dependency>

    <!-- Log4j -->
    <dependency>
        <groupId>log4j</groupId>
        <artifactId>log4j</artifactId>
        <version>${log4j.version}</version>
    </dependency>

    <dependency>
        <groupId>org.omnifaces</groupId>
        <artifactId>omnifaces</artifactId>
        <version>1.12.1</version>
    </dependency>

    <dependency>
        <groupId>com.itextpdf</groupId>
        <artifactId>itextpdf</artifactId>
        <version>5.5.8</version>
    </dependency>


    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.7</version>
        <scope>test</scope>
    </dependency>

    <dependency>
        <groupId>javax</groupId>
        <artifactId>javaee-web-api</artifactId>
        <version>6.0</version>
    </dependency>

    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-core</artifactId>
        <version>${jackson.version}</version>
    </dependency>

    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-databind</artifactId>
        <version>${jackson.version}</version>
    </dependency>

    <!-- Spring -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</artifactId>
        <version>${springframework.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-beans</artifactId>
        <version>${springframework.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>${springframework.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context-support</artifactId>
        <version>${springframework.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-aspects</artifactId>
        <version>${springframework.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-instrument</artifactId>
        <version>${springframework.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-instrument-tomcat</artifactId>
        <version>${springframework.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-tx</artifactId>
        <version>${springframework.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-jms</artifactId>
        <version>${springframework.version}</version>
    </dependency>

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>
        <version>${springframework.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc-portlet</artifactId>
        <version>${springframework.version}</version>
    </dependency>

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-test</artifactId>
        <version>${springframework.version}</version>
    </dependency>
    <dependency>   <!-- Usata da Hibernate 4 per LocalSessionFactoryBean -->
        <groupId>org.springframework</groupId>
        <artifactId>spring-orm</artifactId>
        <version>${springsecurity.version}</version>
    </dependency>

    <!-- Spring Security -->
    <dependency>
        <groupId>org.springframework.security.oauth</groupId>
        <artifactId>spring-security-oauth2</artifactId>
        <version>2.0.8.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.security</groupId>
        <artifactId>spring-security-web</artifactId>
        <version>${springsecurity.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.security</groupId>
        <artifactId>spring-security-config</artifactId>
        <version>${springsecurity.version}</version>
    </dependency>

    <dependency>
        <groupId>org.springframework.security</groupId>
        <artifactId>spring-security-cas</artifactId>
        <version>${springsecurity.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.security</groupId>
        <artifactId>spring-security-config</artifactId>
        <version>${springsecurity.version}</version>
    </dependency>

    <dependency>
        <groupId>org.springframework.security</groupId>
        <artifactId>spring-security-remoting</artifactId>
        <version>${springsecurity.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.security</groupId>
        <artifactId>spring-security-taglibs</artifactId>
        <version>${springsecurity.version}</version>
    </dependency>

    <dependency>
        <groupId>org.aspectj</groupId>
        <artifactId>aspectjweaver</artifactId>
        <version>1.6.9</version>
    </dependency>


    <dependency>    <!-- Hibernate -->
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-core</artifactId>
        <version>4.1.4.Final</version>
    </dependency>

    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-entitymanager</artifactId>
        <version>4.1.4.Final</version>
    </dependency>


    <dependency>
        <groupId>javax</groupId>
        <artifactId>javaee-api</artifactId>
        <version>6.0</version>
    </dependency>


    <dependency>
        <groupId>javax.annotation</groupId>
        <artifactId>javax.annotation-api</artifactId>
        <version>1.2-b02</version>
    </dependency>

    <dependency>
        <groupId>org.primefaces</groupId>
        <artifactId>primefaces</artifactId>
        <version>5.2</version>
    </dependency>

    <dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
        <version>1.16.4</version>
        <scope>provided</scope>
    </dependency>

    <dependency>
        <groupId>javax.el</groupId>
        <artifactId>el-api</artifactId>
        <version>2.2</version>
    </dependency>

    <dependency>
        <groupId>org.glassfish.web</groupId>
        <artifactId>el-impl</artifactId>
        <version>2.2</version>
    </dependency>

    <dependency>
        <groupId>org.glassfish.web</groupId>
        <artifactId>jstl-impl</artifactId>
        <version>1.2</version>
    </dependency>

    <dependency>
        <groupId>org.glassfish</groupId>
        <artifactId>javax.faces</artifactId>
        <version>2.1.26</version>
    </dependency>

    <dependency>
        <groupId>javax.faces</groupId>
        <artifactId>jsf-api</artifactId>
        <version>2.0</version>
    </dependency>


    <dependency>
        <groupId>log4j</groupId>
        <artifactId>log4j</artifactId>
        <version>1.2.17</version>
    </dependency>

    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>jstl</artifactId>
        <version>1.2</version>
    </dependency>

    <dependency>
        <groupId>org.slf4j</groupId>
        <artifactId>slf4j-api</artifactId>
        <version>1.6.1</version>
    </dependency>


    <dependency>
        <groupId>org.eclipse.persistence</groupId>
        <artifactId>javax.persistence</artifactId>
        <version>2.0.0</version>
    </dependency>

    <dependency>
        <groupId>commons-io</groupId>
        <artifactId>commons-io</artifactId>
        <version>1.4</version>
    </dependency>

    <dependency>
        <groupId>commons-beanutils</groupId>
        <artifactId>commons-beanutils</artifactId>
        <version>1.8.3</version>
    </dependency>

    <dependency>
        <groupId>javax.transaction</groupId>
        <artifactId>jta</artifactId>
        <version>1.1</version>
    </dependency>

    <dependency>
        <groupId>commons-lang</groupId>
        <artifactId>commons-lang</artifactId>
        <version>2.6</version>
    </dependency>


    <dependency>
        <groupId>opensymphony</groupId>
        <artifactId>sitemesh</artifactId>
        <version>2.4.2</version>
    </dependency>

    <dependency>
        <groupId>javax.mail</groupId>
        <artifactId>mail</artifactId>
        <version>1.4.1</version>
    </dependency>
</dependencies>


<build>
<sourceDirectory>src</sourceDirectory>
<resources>
    <resource>
        <directory>resources</directory>
        <excludes>
            <exclude>**/*.java</exclude>
        </excludes>
    </resource>
</resources>
<plugins>
    <plugin>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.1</version>
        <configuration>
            <source>1.7</source>
            <target>1.7</target>
        </configuration>
    </plugin>
    <plugin>
        <artifactId>maven-war-plugin</artifactId>
        <version>2.4</version>
        <configuration>
            <warSourceDirectory>WebRoot</warSourceDirectory>
            <failOnMissingWebXml>false</failOnMissingWebXml>
        </configuration>
    </plugin>

    <plugin>
        <artifactId>maven-war-plugin</artifactId>
        <version>2.1.1</version>
        <configuration>
            <attachClasses>true</attachClasses>
            <classesClassifier>classes</classesClassifier>
        </configuration>
    </plugin>

</plugins>

Examine the build log to find the "unresolved compilation errors" — Jim Garrison, Oct 06 '16 at 16:05
You have compilation failures that you need to fix. We can't tell why you have those failures without seeing all the code in your project. But that's way outside the scope of this question. No idea why it's working for you in eclipse, but you really need to fix these failures for maven anyway. — stiemannkj1, Nov 04 '16 at 00:37

score 2 · Answer 1 · edited May 23 '17 at 11:48

2

Problem Part:

This is happening because eclipse is using its own compiler.

Eclipse has implemented its own compiler called as Eclipse Compiler for Java (ECJ).

It is different from the javac, the compiler that is shipped with Sun JDK. One notable difference is that the Eclipse compiler lets you run code that didn't actually properly compile.

If the block of code with the error is never ran, your program will run fine. Otherwise, it will throw an exception indicating that you tried to run code that doesn't compile.

Another difference is that the Eclipse compiler allows for incremental builds from within the Eclipse IDE, that is, all code is compiled as soon as you finish typing.

=============================

Solution Part:

Unfortunately,there is no quick way in Eclipse to switch to Javac (from Sun /Oracle). You cannot simply choose javac from a dropdown or similar in eclipse.

FYi: But this is very simple in IntelliJ IDEA.

But, you can achieve this using Ant tasks or External Tools Configuration.

Both the above approaches are clearly explained in this SO answers.

edited May 23 '17 at 11:48

Community

1
1

answered Oct 06 '16 at 16:29

Sundararaj Govindasamy

8,180
5
44
77

Yeah I understand. Even if run my maven command on command prompt, I still get this issues of compilation. Any solution for this? – Alina Oct 06 '16 at 16:31
When I run mvn clean install, it generates a jar file also since I have added this config: maven-war-plugin 2.1.1 true classes If i do the above solution, I don't think I will get this jar file? Am i right? This jar file is very important for me. – Alina Oct 06 '16 at 17:17
1

Both are irrelavent, you will get your jar ;-) – Sundararaj Govindasamy Oct 06 '16 at 17:22
"First you should change the "-d" argument to the binary folder of the built project" What is the binary folder ? – Alina Oct 06 '16 at 17:28
1

bin is short for binary folder - the folderwhere you have your compiled classes – Sundararaj Govindasamy Oct 06 '16 at 17:31
I don't have a bin folder in my project! – Alina Oct 06 '16 at 17:32

Unresolved compilation problems when generating WAR file using maven

1 Answers1