For quite a while now, as soon as I attach the JDK source code in Eclipse Content Assist lists all private members of classes I use as well. Without attaching the source I don't have the documentation and argument names, but with I get plenty of stuff listed I cannot access anyway.
The checkbox »Hide proposals not visible in the invocation context« in Properties > Java > Editor > Content Assist is already checked. Am I overlooking some setting?
Eclipse Classic here in a current version, but this behavior is in the Eclipse for Java developers as well, and in the past few versions too.
Solved it. The .settings for the project somehow explicitly disabled the setting and this is nowhere exposed in the UI. Manually setting it to enabled works.