diamond operator is not supported in -source 1.5

Question

"org.apache.jasper.JasperException: PWC6033: Error in Javac compilation for JSP

PWC6197: An error occurred at line: 26 in the jsp file: /index.jsp PWC6199: Generated servlet error: diamond operator is not supported in -source 1.5 (use -source 7 or higher to enable diamond operator)"

How to change -source 1.5 to -source 1.7 in Glass Fish?

What IDE and tools you use to create your project? Eclipse, maven, ...? — Pshemo, Jul 13 '14 at 12:38
NetBeans. I added param "-source 1.7 " into properties of my project (properties -> compilation -> additional parameters of compilation (I hope that i translated it correctly because i have non-english version of netBeans)) but it didn't help. — greenpo1son, Jul 13 '14 at 12:47
Possible duplicate: http://stackoverflow.com/questions/2809366/changing-the-version-on-which-netbeans-runs — kajacx, Jul 13 '14 at 12:52
Can you change `Project->Libraries` `Java Platform` to JDK 7 or higher? Also set `Sources` `Source/Binary Format` to `JDK 7` or higher. — Pshemo, Jul 13 '14 at 12:57
If i create just java se project and use "diamond", i don't get error. I have this error when i use JavaEE project. — greenpo1son, Jul 13 '14 at 13:00
http://stackoverflow.com/users/1393766/pshemo I used to adjust this options. — greenpo1son, Jul 13 '14 at 13:07
http://stackoverflow.com/questions/19674097/netbeans-will-not-treat-jsp-as-source-level-7 — Konstantin V. Salikhov, Jul 13 '14 at 18:53
changing project SDK won't help because JSP is server specific — Gaurav Sharma, Oct 30 '16 at 07:06

score 2 · Answer 1 · edited May 23 '17 at 12:06

I was facing the same problem. The problem persists because you are using a web server that is by default configured to compile JSP files via source 1.5. All you need to specify is custom target and compiled java versions. If you are using tomcat then have a look at this answer https://stackoverflow.com/a/20194823/2445898

If you are using Glassfish server like i am suing Glassfish 9, you can configure glassfish-web.xml file to do the same. Create a glassfish-web.xml file in WEB-INF directory of your web application if it does not exists already and add the following lines

<!DOCTYPE glassfish-web-app PUBLIC "-//GlassFish.org//DTD
GlassFish Application Server 3.1 Servlet 3.0//EN"
    "http://glassfish.org/dtds/glassfish-web-app_3_0-1.dtd">
<glassfish-web-app>
    <jsp-config>
        <property name="compilerSourceVM" value="7"/>
        <property name="compilerTargetVM" value="7"/>
    </jsp-config>
</glassfish-web-app>

After adding this. Stop and restart your server. It should work now. It worked for me i hope this will work for you too.

score 0 · Answer 2 · answered Nov 23 '19 at 17:32

0

Try to add in pom.xml file next lines:

<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <configuration>
                <source>7</source>
                <target>7</target>
            </configuration>
        </plugin>
    </plugins>
</build>

answered Nov 23 '19 at 17:32

Alex Titov

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It also solve Error:(65,65) java: diamond operator is not supported in -source 1.5 – Alex Titov Nov 23 '19 at 17:48

diamond operator is not supported in -source 1.5

2 Answers2