https://community.qlik.com/t5/Talend-Studio/Change-jdk-compiler-compliance-level/m-p/2285365#M58987 <P>I have both both jdk 1.8 and jdk 1.7 installed on my system. The server where i want to deploy has jdk 1.7. While i try to change the jdk compiler compliance level under project properties -&gt; preferences it just lists out jdk 1.8. How do i add jdk 1.7 to the list. Is there any other solution to the problem i am facing?&nbsp;</P><P>Exception says "<SPAN>Unsupported major.minor version 52.0"</SPAN></P><P>&nbsp;</P> Mon, 12 Aug 2019 17:36:12 GMT Anonymous 2019-08-12T17:36:12Z https://community.qlik.com/t5/Talend-Studio/Change-jdk-compiler-compliance-level/m-p/2285365#M58987 <P>I have both both jdk 1.8 and jdk 1.7 installed on my system. The server where i want to deploy has jdk 1.7. While i try to change the jdk compiler compliance level under project properties -&gt; preferences it just lists out jdk 1.8. How do i add jdk 1.7 to the list. Is there any other solution to the problem i am facing?&nbsp;</P><P>Exception says "<SPAN>Unsupported major.minor version 52.0"</SPAN></P><P>&nbsp;</P> Mon, 12 Aug 2019 17:36:12 GMT https://community.qlik.com/t5/Talend-Studio/Change-jdk-compiler-compliance-level/m-p/2285365#M58987 Anonymous 2019-08-12T17:36:12Z https://community.qlik.com/t5/Talend-Studio/Change-jdk-compiler-compliance-level/m-p/2285366#M58988 <P>JDK 1.7 isn't supported (<A href="https://help.talend.com/reader/M7NO0aElF4BkC8JRv5ktLw/hns1moiAw_9T73jme7nUbw" target="_blank" rel="nofollow noopener noreferrer">https://help.talend.com/reader/M7NO0aElF4BkC8JRv5ktLw/hns1moiAw_9T73jme7nUbw</A>)</P> Mon, 12 Aug 2019 19:29:43 GMT https://community.qlik.com/t5/Talend-Studio/Change-jdk-compiler-compliance-level/m-p/2285366#M58988 Anonymous 2019-08-12T19:29:43Z