Local and server-side tests can't run with newer Java syntax since source version is set to 1.6 instead of 7 about tmc-intellij HOT 2 CLOSED

-do-compile:
    [mkdir] Created dir: /app/build/empty
    [mkdir] Created dir: /app/build/generated-sources/ap-source-output
    [javac] Compiling 2 source files to /app/build/classes
    [javac] warning: [options] bootstrap class path not set in conjunction with -source 1.6
    [javac] /app/src/Main.java:13: error: diamond operator is not supported in -source 1.6
    [javac]         ArrayList<Bird> database = new ArrayList<>();
    [javac]                                                  ^
    [javac]   (use -source 7 or higher to enable diamond operator)
    [javac] 1 error
    [javac] 1 warning

stderr: 
BUILD FAILED
/app/nbproject/build-impl.xml:603: The following error occurred while executing this line:
/app/nbproject/build-impl.xml:245: Compile failed; see the compiler error output for details.

Total time: 3 seconds

-do-compile:
    [mkdir] Created dir: /app/build/empty
    [mkdir] Created dir: /app/build/generated-sources/ap-source-output
    [javac] Compiling 2 source files to /app/build/classes
    [javac] warning: [options] bootstrap class path not set in conjunction with -source 1.6
    [javac] /app/src/Main.java:28: error: strings in switch are not supported in -source 1.6
    [javac]             switch (command) {
    [javac]                    ^
    [javac]   (use -source 7 or higher to enable strings in switch)
    [javac] 1 error
    [javac] 1 warning

stderr: 
BUILD FAILED
/app/nbproject/build-impl.xml:603: The following error occurred while executing this line:
/app/nbproject/build-impl.xml:245: Compile failed; see the compiler error output for details.

Total time: 3 seconds