Bug#912372: libswingx-java FTBFS with OpenJDK 11

[Adrian Bunk]

Source: libswingx-java
Version: 1:1.6.2-3
Severity: serious
Tags: ftbfs

https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/libswingx-java.html

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[ERROR] COMPILATION ERROR : 
[INFO] -------------------------------------------------------------
[ERROR] /build/1st/libswingx-java-1.6.2/swingx-core/src/main/java/org/jdesktop/swingx/error/ErrorSupport.java:[71,25] reference to toArray is ambiguous
  both method <T>toArray(java.util.function.IntFunction<T[]>) in java.util.Collection and method <T>toArray(T[]) in java.util.List match